Storm News
[Index][Aussie-Wx]
Australian Weather Mailing List Archives: Friday, 12 November 1999

    From                                           Subject
--------------------------------------------------------------------------------------
001 Anthony Cornelius [cyclone at flatrate.net.au]    Energex Lightning Tracker
002 Anthony Cornelius [cyclone at flatrate.net.au]    Who Turned off the Heat?
003 Les Crossan [les.crossan at virgin.net]           Who Turned off the Heat?
004 Mark Dwyer [mjd at wantree.com.au]                A Little Warning about the "BubbleBoy Virus" Email type...
005 "Leslie R. Lemon" [lrlemon at compuserve.com]     Who Turned off the Heat?
006 Harald Richter [spatz at atmos.albany.edu]        Cedar Pocket Tornado (fwd)
007 Les Crossan [les.crossan at virgin.net]           Pocket Tornado (fwd)
008 Michael Fewings [mike at strikeone.com.au]        Bom registered services
009 "Leslie R. Lemon" [lrlemon at compuserve.com]     "Mini-Thunderstorm" in Brisbane
010 Jacob [jacob at iinet.net.au]                     Bom registered services
011 astroman [astroman at chariot.net.au]             Bom registered services
012 astroman [astroman at chariot.net.au]             Cold Season Tornadoes
013 David_Cornford at ansett.com.au                   Re: aussie-weather-digest V1 #368
014 "Mark Hardy" [mhardy at magna.com.au]             Bom registered services
015 "Mark Hardy" [mhardy at magna.com.au]             Bom registered services
016 Les Crossan [les.crossan at virgin.net]           Re: aussie-weather-digest V1 #368
017 Anthony Cornelius [cyclone at flatrate.net.au]    Who Turned off the Heat?
018 Blair Trewin [blair at met.Unimelb.EDU.AU]        Bom registered services
019 Blair Trewin [blair at met.Unimelb.EDU.AU]        Energex Lightning Tracker
020 "The Weather Co." [twc at theweather.com.au]      Energex Lightning Tracker
021 Michael Scollay [michael.scollay at telstra.com.  Bom registered services
022 "John Woodbridge" [jrw at pixelcom.net]           "Mini-Thunderstorm" in Brisbane
023 "John Woodbridge" [jrw at pixelcom.net]           Who Turned off the Heat?
024 Les Crossan [les.crossan at virgin.net]           "Mini-Thunderstorm" in Brisbane
025 Anthony Cornelius [cyclone at flatrate.net.au]    SE QLD T'storms
026 Ben Quinn [bodie at flatrate.net.au]              Storm Picture for 07-11-99
027 Pjcorlett at aol.com                              Lightning Detection Physics
028 Blair Trewin [blair at met.Unimelb.EDU.AU]        Who Turned off the Heat?
029 "John Woodbridge" [jrw at pixelcom.net]           Who Turned off the Heat? (Brisbane wx)
030 "Mark Hardy" [mhardy at magna.com.au]             Job opportunity
031 "W.A. (Bill) Webb" [billwebb at tpgi.com.au]      Who Turned off the Heat?
032 "W.A. (Bill) Webb" [billwebb at tpgi.com.au]      First Aussie cyclone for Season?
033 "John Woodbridge" [jrw at pixelcom.net]           Brisbane wx
034 "as029 at powerup.com.au" [as029 at powerup.com.au]  New ENERGEX Web Page
035 Jason Smith [s348771 at student.uq.edu.au]        Re: Help me!!
036 astroman [astroman at chariot.net.au]             Bom registered services
037 Blair Trewin [blair at met.Unimelb.EDU.AU]        Ships of the desert...
038 Blair Trewin [blair at met.Unimelb.EDU.AU]        Energex Lightning Tracker
039 "Michael Thompson" [michaelt at ozemail.com.au]   Job opportunity
040 "Michael Thompson" [michaelt at ozemail.com.au]   Next week still interesting !
041 "Greg Curtis" [curtisg at ecn.net.au]             DIY lightning detection
042 Ben Quinn [bodie at flatrate.net.au]              Brisbane wx
043 "Halden Boyd" [haldenboyd at hotmail.com]         Energex Lightning Tracker spam
044 "Halden Boyd" [haldenboyd at hotmail.com]         DIY lightning detection

--------------------------------------------------------------------------------------
001
Date: Thu, 11 Nov 1999 23:04:22 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.6 [en] (Win98; I)
X-Accept-Language: en
To: Australian Weather Mailing List [aussie-weather at world.std.com]
Subject: aus-wx: Energex Lightning Tracker
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all,

As some of the QLD members already know, I've been in 'negotiations'
with Energex for the past few weeks, trying to get the more frequent
updates back for SE QLD.  After many phone calls to both Energex, and
Channel 7 (both of who said each other controlled the live feed!), I was
finally able to get a contact to write a formal request through.

Unfortunately, it can't be done.  Energex is bounded by contract, to
GPATS to:

a) To have a 15min delay in data (this was OK, and most people know
about it.)
b) To only give out data every 15 minutes 
c) To only show SE QLD, and no longer have all of QLD as they did last
year.

When I come back from the end of year chase in December, I'll commence
negotiations with GPATS to persuade them otherwise.  I don't like the
probability though, given that I know one QLD member actually phoned and
asked how much the data costs, and got laughed at and said "you'd never
be able to afford it" (!)

Will keep people posted if I make any ground.
-- 
Anthony Cornelius
Queensland Coordinator of the Australian Severe Weather Association
(ASWA)
(07) 3390 4812
14 Kinsella St
Belmont, Brisbane
QLD, 4153
Please report severe thunderstorms on our Queensland severe thunderstorm
reporting line on (07) 3390 4218 or by going to our homepage at
http://www.severeweather.asn.au
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 -----------------------jacob at iinet.net.au------------------------------

002
Date: Thu, 11 Nov 1999 23:16:31 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.6 [en] (Win98; I)
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To: Australian Weather Mailing List [aussie-weather at world.std.com]
Subject: aus-wx: Who Turned off the Heat?
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all,

Very interesting layer of cold air above SE QLD/NE NSW at the moment,
and certainly quite surprising.  AVN is going for a whopping -20C  at 
500mb tomorrow, this is even colder then what we average in winter!  In
fact, I can't remember Brisbane itself getting to -20C  at  500mb all
winter, the only time this happened was on May 1 of this year, of which
we had a few cold-air supercells, and one spawned a tornado (coldie or
supercellular? ) near Gondoowindi (3.5-4hrs WSW of Brisbane) - plenty
of hail too!

To give you an idea on how cold this air is, compared to what would
normally happen, I've calculated some CAPE's for differing day situatios
that we normally get in November (all with a pressure of 1008hPa)

A typical sunny November Day (Temp/DP)is 28/19, CAPE = 3496
A warm November T'storm Day - 31/22, CAPE = 5292
A Good November T'storm Day - 34/24, CAPE = 7049

Not the best way to measure the differences I know, but it gives you an
idea on what we would get if the surface was "average" anyway.

None the less, it appears that winter is having one last blast for the
eastern states, with this high positioned quite far up north.  Last
night, us poor Brisbanites froze, with the mercury dipping to 13C
(Brisbanites tend to freeze at much higher temperatures for those US
people scratching their heads! :)  Certainly a doonah light last night,
and will probably be another one tonight too.  Models do have heat
lows/troughs taking over again next week, which is good to see.
-- 
Anthony Cornelius
Queensland Coordinator of the Australian Severe Weather Association
(ASWA)
(07) 3390 4812
14 Kinsella St
Belmont, Brisbane
QLD, 4153
Please report severe thunderstorms on our Queensland severe thunderstorm
reporting line on (07) 3390 4218 or by going to our homepage at
http://www.severeweather.asn.au
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 -----------------------jacob at iinet.net.au------------------------------

003
Date: Thu, 11 Nov 1999 14:21:03 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Personal - ICQ 17296776 - note all times in GMT
X-Mailer: Mozilla 4.7 [en] (Win98; I)
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To: aussie-weather at world.std.com
Subject: Re: aus-wx: Who Turned off the Heat?
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com



Anthony Cornelius wrote:

> Hi all,
> and one spawned a tornado (coldie or supercellular? ) near Gondoowindi
> (3.5-4hrs WSW of Brisbane) - plenty
> of hail too!

Aha. Pocket tornado 

Couldn't you email Storm News..... or is it too big!


>
> To give you an idea on how cold this air is, compared to what would
> normally happen, I've calculated some CAPE's for differing day situatios
> that we normally get in November (all with a pressure of 1008hPa)
>
> A typical sunny November Day (Temp/DP)is 28/19, CAPE = 3496

How do you work it out???

Ours is 30.77 in / 1042mb(1042hPa if you want) temp/dp 10/6

and you think 28 degrees is cold....

Les

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 -----------------------jacob at iinet.net.au------------------------------

004
Date: Thu, 11 Nov 1999 23:27:11 +0800
From: Mark Dwyer [mjd at wantree.com.au]
X-Mailer: Mozilla 4.61 [en] (Win98; I)
X-Accept-Language: en
To: "aussie-weather at world.std.com" [aussie-weather at world.std.com]
Subject: aus-wx: A Little Warning about the "BubbleBoy Virus" Email type...
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

MJ Here ppl's just seen this artical in the news paper about a new Email
Virus that is part onf the email and is not and attachment type, it is
actually in the body of the email, and yes is will propergate, and ist
has mass mail capabilities, So be Warned About it, go to symantec's Site
for more info "www.symantec.com/avcenter/venc/data/vbs.bubbleboy.htm"
and have a look at it ....


005
Attachment Converted: "c:\eudora\attach\mjd2.vcf"
Date: Thu, 11 Nov 1999 11:00:08 -0500
From: "Leslie R. Lemon" [lrlemon at compuserve.com]
Subject: Re: aus-wx: Who Turned off the Heat?
To: "INTERNET:aussie-weather at world.std.com" [aussie-weather at world.std.com]
X-MIME-Autoconverted: from quoted-printable to 8bit by europe.std.com id LAA20432
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

All:

Interestingly enough, this fall here in the US is very warm, much above
normal over much of the nation except for the northeast US and the
northwest US.  It has also been very dry.  The Gulf of Mexico from which
much of the central and easter US gets its moist air and precipitation has
been "closed for business".  That is, it has been blocked by a weak surface
high pressure ridge which repeatedly develops each time it begins to break
down.  This has gone on now during the last month to two months.  Over all,
there is a large blocking 500 mb ridge anchored near the center of the US. 
Thus, only the northwest and northeast US get cool and wet weather.

Here in the central US we have been averaging 15 to 20 degrees F above
normal and we have had very little precipitation over the last three months
after a very wet period last spring.  The weather is beautiful but
deceptively so because we are in the midst of a minor (at this time)
drought.

Believe me, there are no storms to chase here!

Les 

************************
Leslie R. Lemon
Radar, Severe Storms, & Research Meteorologist
Phone: 816-373-3533
E-Mail: lrlemon at compuserve.com


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 -----------------------jacob at iinet.net.au------------------------------

006
From: Harald Richter [spatz at atmos.albany.edu]
Subject: Re: aus-wx: Cedar Pocket Tornado (fwd)
To: aussie-weather at world.std.com (Australian Severe Weather Association)
Date: Thu, 11 Nov 1999 16:36:27 +0000 (GMT)
X-Mailer: ELM [version 2.4ME+ PL39 (25)]
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com


Les Crossan divulged:

> Highest CAPE all year for this area (Wallsend, UK 55N 1.30W )was 800!

There is only one solution, Les:  MOVE AWAY!  I heard (and read) that the
NSW/QLD border is quite appealing (esp. at this time of the year).

I will do my part and move to CAPE City (Oklahoma) in 50 days time :) :) :)

This terribly self-indulgent mail will end ...

RIGHT NOW

Harald


-- 
------------------------------------------------------
Harald Richter
Postdoctoral Research Associate
Department of Earth and Atmospheric Sciences
State University of New York at Albany
1400 Washington Avenue
Albany, NY 12222
phone: (518) 442-4273	fax: (518) 442-4494
spatz at atmos.albany.edu
http://www.atmos.albany.edu/facstaff/spatz/spatz.html
------------------------------------------------------
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 -----------------------jacob at iinet.net.au------------------------------

007
Date: Thu, 11 Nov 1999 17:20:03 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Personal - ICQ 17296776 - note all times in GMT
X-Mailer: Mozilla 4.7 [en] (Win98; I)
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To: aussie-weather at world.std.com
Subject: aus-wx: Pocket Tornado (fwd)
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com



Harald Richter wrote:

>
> I will do my part and move to CAPE City (Oklahoma) in 50 days time :) :) :)

Anticyclonic gloom sux.

*but*

Isn't CAPE city CAP city most of the time though - there's a severe weather
corridor 100 - odd miles away from me here called the M62 between Manchester
and Hull!

Les

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 -----------------------jacob at iinet.net.au------------------------------

008
Date: Fri, 12 Nov 1999 01:51:45 +0800
From: Michael Fewings [mike at strikeone.com.au]
Organization: Strike One Lightning Photos
X-Mailer: Mozilla 4.5 [en] (Win98; I)
X-Accept-Language: en
To: Aussie Weather [aussie-weather at world.std.com]
Subject: aus-wx: Bom registered services
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all,

Tonight I find this devastating note on one my favourite
page on the internet and what has been my start page for a
few years.

http://www.bom.gov.au/products/IDO30W01.shtml

and the note
NOTE:
The Bureau is reviewing access to weather observations. The
observations on this web site have been freely available for
a trial period. In the future however, the
Bureau may provide this frequency of current observations
(10 minute updates) only to Registered Users. Less
frequently updated observations are expected to
remain freely available.

What the hell is this about.

Does this mean that to get up to date observations from
around Perth I will now need to become a registered user
with the enevitable cost of doing so??????

What is becoming of the Bom.

Anyone else from around Australia about to lose the most up
to date and accurate real time observations from their city
too?

>From an upset West Australian.
--
Michael Fewings

Photographer of:
Strike One Lightning Photos
http://strikeone.com.au

Web Master of:
Australian Severe Weather Association Inc.
http://www.severeweather.asn.au


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 -----------------------jacob at iinet.net.au------------------------------

009
Date: Thu, 11 Nov 1999 13:36:09 -0500
From: "Leslie R. Lemon" [lrlemon at compuserve.com]
Subject: aus-wx: "Mini-Thunderstorm" in Brisbane
To: "INTERNET:aussie-weather at world.std.com" [aussie-weather at world.std.com]
X-MIME-Autoconverted: from quoted-printable to 8bit by europe.std.com id NAA22033
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Anthony and All:

> I thought I had heard it all until the radio station blamed power
> outages  in Brisbane from a "mini-thunderstorm" this afternoon. 

This sounds like the media is continually "diminishing" the storms that
Australia has.  I wonder why this is?  The US does have the reputation of
the worst weather in the world and extremes but that does not mean that the
atmosphere is incapable of producing comparable storms wherever supporting
conditions develop.  Obviously the frequency varies but not necessarily the
size and intensity.  Australia can and has had storms comparable to the US
plains giants as well as our "mini" or "micro" storms.

Although, as I am sure you all are aware, we have great variability in
storm size here.  I keep being amazed at just how small some supercells can
get!  I have seen them down to perhaps 5 km across and 4 to 5 km in height.
 These will occur in a variety of situations such as with hurricanes and
tropical storms, as well as in the plains or all areas of the US.  They
will produce tornadoes (sometimes but rarely these tornadoes can be rather
large and violent [F4]).  Hail with these extremely small storms (when
outside tropical disturbances) will be rare but does occur.  Similarly,
lightning is very limited or nonexistent.  Apparently the size is
controlled by the depth of the shear and CAPE as well as where in the
sounding they occur.  The heights of equilibrium levels will also be a
limiting factor.  I am tempted to call some of them 'toy' storms.  However,
they are typically referred to, as mentioned earlier, as mini or even micro
supercells here in the US.  

Les


************************
Leslie R. Lemon
Radar, Severe Storms, & Research Meteorologist
Phone: 816-373-3533
E-Mail: lrlemon at compuserve.com
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 -----------------------jacob at iinet.net.au------------------------------

010
X-Sender: jacob at mail.iinet.net.au
X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1
Date: Fri, 12 Nov 1999 03:15:22 +0800
To: aussie-weather at world.std.com
From: Jacob [jacob at iinet.net.au]
Subject: Re: aus-wx: Bom registered services
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com


The Adelaide current obs page has had that statement around for quite a
while now, but for some reason they only just recenlty put it up on the
Perth and Melbourne current obs page.

Also, those cities are the only ones that have the current obs in that
format, with Perth and Melbourne having 10 min updates, and Adelaide 30 min
updates.

I'm not sure why Sydney or Brisbane doesnt have a current ops page like
that for.

Jacob

At 01:51  12/11/99 +0800, you wrote:
>Hi all,
>
>Tonight I find this devastating note on one my favourite
>page on the internet and what has been my start page for a
>few years.
>
>http://www.bom.gov.au/products/IDO30W01.shtml
>
>and the note
>NOTE:
>The Bureau is reviewing access to weather observations. The
>observations on this web site have been freely available for
>a trial period. In the future however, the
>Bureau may provide this frequency of current observations
>(10 minute updates) only to Registered Users. Less
>frequently updated observations are expected to
>remain freely available.
>
>What the hell is this about.
>
>Does this mean that to get up to date observations from
>around Perth I will now need to become a registered user
>with the enevitable cost of doing so??????
>
>What is becoming of the Bom.
>
>Anyone else from around Australia about to lose the most up
>to date and accurate real time observations from their city
>too?
>
>From an upset West Australian.
>--
>Michael Fewings
>
>Photographer of:
>Strike One Lightning Photos
>http://strikeone.com.au
>
>Web Master of:
>Australian Severe Weather Association Inc.
>http://www.severeweather.asn.au
>
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com
> with "unsubscribe aussie-weather your_email_address" in the body of your
> message.
> -----------------------jacob at iinet.net.au------------------------------

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 -----------------------jacob at iinet.net.au------------------------------

011
X-Sender: astroman at mail.chariot.net.au
X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58
Date: Fri, 12 Nov 1999 07:49:08 +1030
To: aussie-weather at world.std.com
From: astroman [astroman at chariot.net.au]
Subject: Re: aus-wx: Bom registered services
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Maybe it's time we had our own AWS around Australia, would cost less in the 
long run......





At 01:51 AM 12/11/99 +0800, you wrote:
>Hi all,
>
>Tonight I find this devastating note on one my favourite
>page on the internet and what has been my start page for a
>few years.
>
>http://www.bom.gov.au/products/IDO30W01.shtml
>
>and the note
>NOTE:
>The Bureau is reviewing access to weather observations. The
>observations on this web site have been freely available for
>a trial period. In the future however, the
>Bureau may provide this frequency of current observations
>(10 minute updates) only to Registered Users. Less
>frequently updated observations are expected to
>remain freely available.
>
>What the hell is this about.
>
>Does this mean that to get up to date observations from
>around Perth I will now need to become a registered user
>with the enevitable cost of doing so??????
>
>What is becoming of the Bom.
>
>Anyone else from around Australia about to lose the most up
>to date and accurate real time observations from their city
>too?
>
> >From an upset West Australian.
>--
>Michael Fewings
>
>Photographer of:
>Strike One Lightning Photos
>http://strikeone.com.au
>
>Web Master of:
>Australian Severe Weather Association Inc.
>http://www.severeweather.asn.au
>
>
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>  To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com
>  with "unsubscribe aussie-weather your_email_address" in the body of your
>  message.
>  -----------------------jacob at iinet.net.au------------------------------

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 -----------------------jacob at iinet.net.au------------------------------

012
X-Sender: astroman at mail.chariot.net.au
X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58
Date: Fri, 12 Nov 1999 07:54:57 +1030
To: aussie-weather at world.std.com
From: astroman [astroman at chariot.net.au]
Subject: aus-wx: Cold Season Tornadoes
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all,
found this page on the BoM site, might be handy in predicting Tornadoes for 
different areas.

http://www.bom.gov.au/bmrc/regn/expt/tornado/tornado.html

only has three regions there, but might be handy

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 -----------------------jacob at iinet.net.au------------------------------

013
From: David_Cornford at ansett.com.au
X-Lotus-FromDomain: ANSETT
To: aussie-weather-digest at world.std.com
Date: Fri, 12 Nov 1999 08:35:15 +1000
Subject: aus-wx: Re: aussie-weather-digest V1 #368
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com




From: Anthony Cornelius [cyclone at flatrate.net.au]
Subject: aus-wx: "Mini-Thunderstorm" in Brisbane
I thought I had heard it all until the radio station blamed power
outages  in Brisbane from a "mini-thunderstorm" this afternoon.  If a
supercell thunderstorm forms a mini-tornado, that does a
mini-thunderstorm form a "nano-tornado?"

Well said!  I think a mini-thunderstorm spawns intense drizzle.

DVC


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014
X-Mailer: Microsoft Outlook Express Macintosh Edition - 4.5 (0410)
Date: Fri, 12 Nov 1999 08:41:56 +1100
Subject: Re: aus-wx: Bom registered services
From: "Mark Hardy" [mhardy at magna.com.au]
To: aussie-weather at world.std.com
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Jacob
Sydney has an excellent current obs page hidden away under their Olympic
site. It may not last beyond 9/00 though,
Mark
_____________________________________________________
Mark Hardy.
Weather 21
Level 2, 7 West Street, North Sydney 2060
Ph (02) 9955 7704. Fax (02) 9955 1536.
email: markh at weather21.com.au
_____________________________________________________

----------
>From: Jacob 
>To: aussie-weather at world.std.com
>Subject: Re: aus-wx: Bom registered services
>Date: Fri, 12 Nov 1999 6:15 AM
>

>
> The Adelaide current obs page has had that statement around for quite a
> while now, but for some reason they only just recenlty put it up on the
> Perth and Melbourne current obs page.
>
> Also, those cities are the only ones that have the current obs in that
> format, with Perth and Melbourne having 10 min updates, and Adelaide 30 min
> updates.
>
> I'm not sure why Sydney or Brisbane doesnt have a current ops page like
> that for.
>
> Jacob
>
> At 01:51  12/11/99 +0800, you wrote:
>>Hi all,
>>
>>Tonight I find this devastating note on one my favourite
>>page on the internet and what has been my start page for a
>>few years.
>>
>>http://www.bom.gov.au/products/IDO30W01.shtml
>>
>>and the note
>>NOTE:
>>The Bureau is reviewing access to weather observations. The
>>observations on this web site have been freely available for
>>a trial period. In the future however, the
>>Bureau may provide this frequency of current observations
>>(10 minute updates) only to Registered Users. Less
>>frequently updated observations are expected to
>>remain freely available.
>>
>>What the hell is this about.
>>
>>Does this mean that to get up to date observations from
>>around Perth I will now need to become a registered user
>>with the enevitable cost of doing so??????
>>
>>What is becoming of the Bom.
>>
>>Anyone else from around Australia about to lose the most up
>>to date and accurate real time observations from their city
>>too?
>>
>>From an upset West Australian.
>>--
>>Michael Fewings
>>
>>Photographer of:
>>Strike One Lightning Photos
>>http://strikeone.com.au
>>
>>Web Master of:
>>Australian Severe Weather Association Inc.
>>http://www.severeweather.asn.au
>>
>>
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>> -----------------------jacob at iinet.net.au------------------------------
>
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015
X-Mailer: Microsoft Outlook Express Macintosh Edition - 4.5 (0410)
Date: Fri, 12 Nov 1999 08:53:49 +1100
Subject: Re: aus-wx: Bom registered services
From: "Mark Hardy" [mhardy at magna.com.au]
To: aussie-weather at world.std.com
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Astroman
You're dreaming!! It costs a fortune to run the AWS network. Just the comms
cost alone would kill you. Maintenance requries somebody full-time
travelling around the country. Factor in the capital cost of 250 stations at
between $5000 and $15000 per site and you are looking at a serious
investment.

It's much cheaper to cough up the $55 per month.
MH
--
_____________________________________________________
Mark Hardy.
The Weather Company Pty. Ltd.
Level 2, 7 West Street, North Sydney 2060
Ph (02) 9955 7704. Fax (02) 9955 1536.
Mobile 0414 642 739
email: mhardy at theweather.com.au
_____________________________________________________


----------
>From: astroman 
>To: aussie-weather at world.std.com
>Subject: Re: aus-wx: Bom registered services
>Date: Fri, 12 Nov 1999 8:19 AM
>

> Maybe it's time we had our own AWS around Australia, would cost less in the
> long run......
>
>
>
>
>
> At 01:51 AM 12/11/99 +0800, you wrote:
>>Hi all,
>>
>>Tonight I find this devastating note on one my favourite
>>page on the internet and what has been my start page for a
>>few years.
>>
>>http://www.bom.gov.au/products/IDO30W01.shtml
>>
>>and the note
>>NOTE:
>>The Bureau is reviewing access to weather observations. The
>>observations on this web site have been freely available for
>>a trial period. In the future however, the
>>Bureau may provide this frequency of current observations
>>(10 minute updates) only to Registered Users. Less
>>frequently updated observations are expected to
>>remain freely available.
>>
>>What the hell is this about.
>>
>>Does this mean that to get up to date observations from
>>around Perth I will now need to become a registered user
>>with the enevitable cost of doing so??????
>>
>>What is becoming of the Bom.
>>
>>Anyone else from around Australia about to lose the most up
>>to date and accurate real time observations from their city
>>too?
>>
>> >From an upset West Australian.
>>--
>>Michael Fewings
>>
>>Photographer of:
>>Strike One Lightning Photos
>>http://strikeone.com.au
>>
>>Web Master of:
>>Australian Severe Weather Association Inc.
>>http://www.severeweather.asn.au
>>
>>
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>>  message.
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>
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016
Date: Thu, 11 Nov 1999 23:14:06 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Personal - ICQ 17296776 - note all times in GMT
X-Mailer: Mozilla 4.7 [en] (Win98; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Re: aussie-weather-digest V1 #368
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com



David_Cornford at ansett.com.au wrote:

Well said!  I think a mini-thunderstorm spawns intense drizzle.

VERY intense drizzle??

Don't forget "diamond dust" (ice crystals in air well below 0C)

(:

Les

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017
Date: Fri, 12 Nov 1999 09:33:11 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.6 [en] (Win98; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Who Turned off the Heat?
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi Les and all,

Les Crossan wrote:

> 
> Couldn't you email Storm News..... or is it too big!

Distributing SN isn't a problem - but the data needed for SN is not
available yet.
 
> >
> > To give you an idea on how cold this air is, compared to what would
> > normally happen, I've calculated some CAPE's for differing day situatios
> > that we normally get in November (all with a pressure of 1008hPa)
> >
> > A typical sunny November Day (Temp/DP)is 28/19, CAPE = 3496
> 
> How do you work it out???

I have two ways, when I'm in a hurry I'll plot the air parcel plot line
over a skew-t and give an estimate of CAPE (given that CAPE is
essentially just a measure of the area between the air parcel plot line,
and temperature line).  From experience, I've been able to relate
approximate size areas, to approximate CAPE's with about a 10% error.

The next way, is to input the temps/DP's for differing levels in the
atmosphere (into a little CAPE proggy a friend in the US made for me)
you should really use as many levels as possible, but it takes far too
long to input this all manually, so I normally use the sfc, 1000mb,
925mb, 850mb, 700mb, 500mb 400mb, 300mb, 250mb, 200mb, 150mb and 100mb. 
These are also the levels that AVN forecasts for us.

By doing this...it then calculates CAPE and CIN.  I'm wondering if he'll
also be able to plot the actual new skew-t and do LI's etc...but I think
this really gets down to some heavy duty programming!

> Ours is 30.77 in / 1042mb(1042hPa if you want) temp/dp 10/6
> 
> and you think 28 degrees is cold....
28C is comfortable, 24C and below for a max is cold.

-- 
Anthony Cornelius
Queensland Coordinator of the Australian Severe Weather Association
(ASWA)
(07) 3390 4812
14 Kinsella St
Belmont, Brisbane
QLD, 4153
Please report severe thunderstorms on our Queensland severe thunderstorm
reporting line on (07) 3390 4218 or by going to our homepage at
http://www.severeweather.asn.au
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018
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: Re: aus-wx: Bom registered services
To: aussie-weather at world.std.com
Date: Fri, 12 Nov 1999 10:40:42 +1100 (EST)
X-Mailer: ELM [version 2.4 PL23]
Sender: aussie-weather-approval at world.std.com
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> 
> Astroman
> You're dreaming!! It costs a fortune to run the AWS network. Just the comms
> cost alone would kill you. Maintenance requries somebody full-time
> travelling around the country. Factor in the capital cost of 250 stations at
> between $5000 and $15000 per site and you are looking at a serious
> investment.

I believe that the Bureau budgets ~$40000 for each AWS installation.

> It's much cheaper to cough up the $55 per month.
> MH
> --
Actually, it's $100 per year ($55 a month is the rate for radar).

I understand that the Bureau is soon issuing a defined 'Basic Product
Set' which will be freely available. I don't know a lot about the
specifics of what will and won't be available in this (although I
believe at least some radar is likely to be in it), but suspect that
it means that the level of available observations will become more
consistent nationally, but that some regions will lose some services
(for example - and I'm speaking purely hypothetically here, as I
don't know if this is the plan - instead of having 10-minute data
available around a few of the cities, we might have hourly data for
all Australian AWS sites). To some extent, what's available now is
a legacy of the old gopher site - those regions that had a lot of
current observations available on the gopher (e.g. SA) also have a
fair bit on the web, those that had little or nothing (e.g. Queensland
and NT) still don't have much. 

If reasonably frequent current observations are not freely available,
I wonder whether ASWA would be able to negotiate a similar arrangement
to that used for radar?

Blair Trewin
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019
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: Re: aus-wx: Energex Lightning Tracker
To: aussie-weather at world.std.com
Date: Fri, 12 Nov 1999 10:45:40 +1100 (EST)
X-Mailer: ELM [version 2.4 PL23]
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> 
> Hi all,
> 
> As some of the QLD members already know, I've been in 'negotiations'
> with Energex for the past few weeks, trying to get the more frequent
> updates back for SE QLD.  After many phone calls to both Energex, and
> Channel 7 (both of who said each other controlled the live feed!), I was
> finally able to get a contact to write a formal request through.
> 
> Unfortunately, it can't be done.  Energex is bounded by contract, to
> GPATS to:
> 
> a) To have a 15min delay in data (this was OK, and most people know
> about it.)
> b) To only give out data every 15 minutes 
> c) To only show SE QLD, and no longer have all of QLD as they did last
> year.
> 
> When I come back from the end of year chase in December, I'll commence
> negotiations with GPATS to persuade them otherwise.  I don't like the
> probability though, given that I know one QLD member actually phoned and
> asked how much the data costs, and got laughed at and said "you'd never
> be able to afford it" (!)

GPATS is very aggressive in protecting its position - for example,
although the Bureau has access to the GPATS data, it is not allowed
to give specific lightning locations in its warnings (I am not making
this up...).

It's one of the hazards of having a type of data that is highly
commercially valuable to a small number of easily identifiable
clients (the power companies) - fortunately most meteorological data
isn't like that. My understanding is that the lightning network is
fairly cheap to run and that the charges are so high because GPATS
has a monopoly and will charge whatever the market will bear.
Unfortunately, the fact that a commercial provider is already 
established means that there is no way that the Government will
ever allow the Bureau to establish a non-commercial lightning
detection network (and if they tried the ACCC would jump on them 
very quickly indeed).

Blair Trewin
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020
From: "The Weather Co." [twc at theweather.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: Energex Lightning Tracker
Date: Fri, 12 Nov 1999 11:29:24 +1100
X-Mailer: Microsoft Outlook Express 5.00.2314.1300
Sender: aussie-weather-approval at world.std.com
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Blair

Almost right. Actually, there are 2 lightning suppliers and they compete
very aggressively. The other one being LPATS. Yes, the price is high but not
because there is a monopoly but because the number of paying clients is
small. The network is fairly expensive to run when factored over a small
client base. IN addition, the capital investment is high because the sensors
(apparently) cost around $200,000 each to install and bring online. The bulk
of the data fees is used to recoup capital.

You are right in suggesting the data would be cheaper if it had value to a
broader base - ain't this always the case!! We have tried to broker deals
between media companies and LPATS/GPATS in the past and found that even the
largest TV networks can't justify the rates that the lightning suppliers
need to charge to keep price parity with their core customers. The time
delay on the data is the only way that this data can be made widely
available without affecting the existing contracts.
Mark

----- Original Message -----
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
To: [aussie-weather at world.std.com]
Sent: Friday, November 12, 1999 10:45 AM
Subject: Re: aus-wx: Energex Lightning Tracker


> >
> > Hi all,
> >
> > As some of the QLD members already know, I've been in 'negotiations'
> > with Energex for the past few weeks, trying to get the more frequent
> > updates back for SE QLD.  After many phone calls to both Energex, and
> > Channel 7 (both of who said each other controlled the live feed!), I was
> > finally able to get a contact to write a formal request through.
> >
> > Unfortunately, it can't be done.  Energex is bounded by contract, to
> > GPATS to:
> >
> > a) To have a 15min delay in data (this was OK, and most people know
> > about it.)
> > b) To only give out data every 15 minutes
> > c) To only show SE QLD, and no longer have all of QLD as they did last
> > year.
> >
> > When I come back from the end of year chase in December, I'll commence
> > negotiations with GPATS to persuade them otherwise.  I don't like the
> > probability though, given that I know one QLD member actually phoned and
> > asked how much the data costs, and got laughed at and said "you'd never
> > be able to afford it" (!)
>
> GPATS is very aggressive in protecting its position - for example,
> although the Bureau has access to the GPATS data, it is not allowed
> to give specific lightning locations in its warnings (I am not making
> this up...).
>
> It's one of the hazards of having a type of data that is highly
> commercially valuable to a small number of easily identifiable
> clients (the power companies) - fortunately most meteorological data
> isn't like that. My understanding is that the lightning network is
> fairly cheap to run and that the charges are so high because GPATS
> has a monopoly and will charge whatever the market will bear.
> Unfortunately, the fact that a commercial provider is already
> established means that there is no way that the Government will
> ever allow the Bureau to establish a non-commercial lightning
> detection network (and if they tried the ACCC would jump on them
> very quickly indeed).
>
> Blair Trewin
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>  -----------------------jacob at iinet.net.au------------------------------

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021
Date: Fri, 12 Nov 1999 11:29:48 +1100
From: Michael Scollay [michael.scollay at telstra.com.au]
Organization: Telstra Strategy & Research
X-Mailer: Mozilla 4.5 [en] (X11; I; SunOS 5.5.1 sun4m)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Bom registered services
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

[snip]
On Fri, 12 Nov 1999 10:40:42 +1100 (EST) Blair Trewin wrote:
>
> If reasonably frequent current observations are not freely available,
> I wonder whether ASWA would be able to negotiate a similar arrangement
> to that used for radar?

I believe ASWA was setup for such a purpose. At least to gain
what I call "Community Of Interest" access to registered BoM
services that would otherwise cost an individual a fortune.
That said, as ASWA Treasurer, it is within our current budget
to fund access to more BoM registered services. In principle,
I am opposed to "bending" as such to the whim of the politicians
who consider that we should both pay our taxes and also pay for
services that have been, in principle, already paid for by "the
taxpayers of Australia". Maybe there's a "Freedom of Information"
issue here...Any lawyers in ASWA or on the list care to comment?
Where there's a will, there's a way...

Now we ought to open for discussion among ASWA members what
additional BoM services are needed. Obs and model output come
to mind and after recent NPMOC performance woes, perhaps hi-res 
satpic imagery as well if an alternative $free hi-res site is
not available. Given all of this, there is a "minor" 3rd-party 
distribution issue left to address but that is a mandatory step
anyway. I'm willing to go to Melbourne and Canberra to hammer
this issue out with the BoM and/or Government bureaucrats if
neccessary. I'd like a team consisting of Jimmy, MichaelB, DonW
and LaurierW if the need arose.

On the subject of station obs in particular, I have been putting
some thought and an archive trial toward the archive of both;

http://www.bom.gov.au/cgi-bin/silo/retriver.cgi?state=nat&period=daily&data_type=clim&format_type=data

and

http://www.bom.gov.au/cgi-bin/silo/retriver.cgi?state=nat&period=daily&data_type=totals&format_type=data

I've knocked together a little script that fetches the past 
days national obs files and for selected stations, combines
the result into a historical "station obs" on demand. This
is pretty neat because it means that provided the source files
are kept (about 0.5MB per day) or indeed, the pertinent data
from one file combined with the other (0.35MB per day), a daily
historical obs report can be constructed for any station in 
Australia. Like I said "Where there's a will, there's a way"...

 ,-_|\    Michael Scollay
/ASWA \   mailto:michael.scollay at telstra.com.au
\_,^._/   Treasurer, ASWA Inc.
     v    http://www.severeweather.asn.au
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022
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: RE: aus-wx: "Mini-Thunderstorm" in Brisbane
Date: Fri, 12 Nov 1999 10:15:25 +1000
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Hi Marty,

Yeah I saw that too.  I was putting out the rubbish bin at Mt. Crosby, near
the bottom of my 100m dark driveway, when this bright white strobe went off
that fair near scared the s#$% out of me.  I looked up and lo & behold -
nothing but stars and an alto cumulus sheet near the city.  I still have no
idea where it came from.  (May be a meteorite & not lightning at all)??  No
thunder.

John.

Hi Anthony and all,

We had a power surge at B105 which blacked out the entire building for a
couple
of seconds. Can't remember exactly what time.

Seems there's some light storm activity producing the odd lightning strike
just
off the coast of SE QLD. I crossed the road to get to Toombul shopping
centre,
with a clear sky above me, and was shocked when I saw a lovely big flash
which
fill a large area of the sky! Most unexpected. That was about 8:30.

Cheers,

Marty.

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023
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: RE: aus-wx: Who Turned off the Heat?
Date: Fri, 12 Nov 1999 10:34:59 +1000
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Yeah, I have quit looking at KXAN Austin radar because it has become so
boring.
Maybe next spring?

John.
-----Original Message-----
From: aussie-weather-approval at world.std.com
[mailto:aussie-weather-approval at world.std.com]On Behalf Of Leslie R.
Lemon
Sent: Friday, 12 November 1999 2:00
To: INTERNET:aussie-weather at world.std.com
Subject: Re: aus-wx: Who Turned off the Heat?


All:

Interestingly enough, this fall here in the US is very warm, much above
normal over much of the nation except for the northeast US and the
northwest US.  It has also been very dry.  The Gulf of Mexico from which
much of the central and easter US gets its moist air and precipitation has
been "closed for business".  That is, it has been blocked by a weak surface
high pressure ridge which repeatedly develops each time it begins to break
down.  This has gone on now during the last month to two months.  Over all,
there is a large blocking 500 mb ridge anchored near the center of the US.
Thus, only the northwest and northeast US get cool and wet weather.

Here in the central US we have been averaging 15 to 20 degrees F above
normal and we have had very little precipitation over the last three months
after a very wet period last spring.  The weather is beautiful but
deceptively so because we are in the midst of a minor (at this time)
drought.

Believe me, there are no storms to chase here!

Les

************************
Leslie R. Lemon
Radar, Severe Storms, & Research Meteorologist
Phone: 816-373-3533
E-Mail: lrlemon at compuserve.com


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024
Date: Fri, 12 Nov 1999 01:06:16 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Personal - ICQ 17296776 - note all times in GMT
X-Mailer: Mozilla 4.7 [en] (Win98; I)
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To: aussie-weather at world.std.com
Subject: Re: aus-wx: "Mini-Thunderstorm" in Brisbane
Sender: aussie-weather-approval at world.std.com
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John Woodbridge wrote:

> Hi Marty,
>
> Yeah I saw that too.  I was putting out the rubbish bin at Mt. Crosby, near
> the bottom of my 100m dark driveway, when this bright white strobe

You may have seen an Iridium Flare -

http://www.heavens-above.com/main.asp?Lat=55&Lng=1.5&Loc=Wallsend&TZ=CET

for more info - but change the lat & long, naturally.

Les

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025
Date: Fri, 12 Nov 1999 11:11:48 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.6 [en] (Win98; I)
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To: Australian Weather Mailing List [aussie-weather at world.std.com]
Subject: aus-wx: SE QLD T'storms
Sender: aussie-weather-approval at world.std.com
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Hi all,

A few t'storms around in SE QLD at the moment.  Mainly to the west, near
Toowoomba, up near the D'Agular ranges, and near Warwick (no coincidence
that these have all formed in hilly/mountainous areas either).  Mainly
Cold air-CB would be my guess.  They're so low, I can't even see
anything from here!  But they're pulling yellow/green rain intensity
rates, and lightning tracker is picking up a handful of CG's from them.

Looking at the sky here, you'd never guess there were ever t'storms
100km away.  I'm going to my parents farm just after lunch time...might
need to do a quick detour or 'accidently' take a wrong turn if anything
interesting happens.  Nice to see such early development on a day like
this though!
-- 
Anthony Cornelius
Queensland Coordinator of the Australian Severe Weather Association
(ASWA)
(07) 3390 4812
14 Kinsella St
Belmont, Brisbane
QLD, 4153
Please report severe thunderstorms on our Queensland severe thunderstorm
reporting line on (07) 3390 4218 or by going to our homepage at
http://www.severeweather.asn.au
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026
Date: Sat, 13 Nov 1999 11:18:10 +1100
From: Ben Quinn [bodie at flatrate.net.au]
X-Mailer: Mozilla 4.61 [en] (Win95; I)
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To: aussie-weather at world.std.com
Subject: aus-wx: Storm Picture for 07-11-99
Sender: aussie-weather-approval at world.std.com
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Hey Ben from Brisbane here..

Check out this video still from a storm in SE QLD on 07-11-99.. 

http://www.bsch.simplenet.com/pictures/assor/07-11-99/steve/steve.htm

It was a very photogenic storm! Others in Brisbane have pictures of the
same storm taken with SLR cameras.. so there should be some more great
pictures when they are developed..

A reasonably interestng day here.. a storm formed to my north about 9:30
this morning (only up to green on radar) which had a nice flanking line
at one stage, but it quickly fizzed.. further showers and storms are
forming throughout SE QLD as i write this email (10 whites on the
tracker at the moment) and it's only 11am.. not much in Brisbane at the
moment (some vertical development - but nothing hard yet that i can
see).. but hopefully we'll get something later on this afternoon.. i can
see some storms to my SW and SSW and they look quite nice! pitty they're
gererally moving in a NNE direction..



"The Weather Co." wrote:
> 
> Blair
> 
> Almost right. Actually, there are 2 lightning suppliers and they compete
> very aggressively. The other one being LPATS. Yes, the price is high but not
> because there is a monopoly but because the number of paying clients is
> small. The network is fairly expensive to run when factored over a small
> client base. IN addition, the capital investment is high because the sensors
> (apparently) cost around $200,000 each to install and bring online. The bulk
> of the data fees is used to recoup capital.
> 
> You are right in suggesting the data would be cheaper if it had value to a
> broader base - ain't this always the case!! We have tried to broker deals
> between media companies and LPATS/GPATS in the past and found that even the
> largest TV networks can't justify the rates that the lightning suppliers
> need to charge to keep price parity with their core customers. The time
> delay on the data is the only way that this data can be made widely
> available without affecting the existing contracts.
> Mark
> 
> ----- Original Message -----
> From: Blair Trewin 
> To: 
> Sent: Friday, November 12, 1999 10:45 AM
> Subject: Re: aus-wx: Energex Lightning Tracker
> 
> > >
> > > Hi all,
> > >
> > > As some of the QLD members already know, I've been in 'negotiations'
> > > with Energex for the past few weeks, trying to get the more frequent
> > > updates back for SE QLD.  After many phone calls to both Energex, and
> > > Channel 7 (both of who said each other controlled the live feed!), I was
> > > finally able to get a contact to write a formal request through.
> > >
> > > Unfortunately, it can't be done.  Energex is bounded by contract, to
> > > GPATS to:
> > >
> > > a) To have a 15min delay in data (this was OK, and most people know
> > > about it.)
> > > b) To only give out data every 15 minutes
> > > c) To only show SE QLD, and no longer have all of QLD as they did last
> > > year.
> > >
> > > When I come back from the end of year chase in December, I'll commence
> > > negotiations with GPATS to persuade them otherwise.  I don't like the
> > > probability though, given that I know one QLD member actually phoned and
> > > asked how much the data costs, and got laughed at and said "you'd never
> > > be able to afford it" (!)
> >
> > GPATS is very aggressive in protecting its position - for example,
> > although the Bureau has access to the GPATS data, it is not allowed
> > to give specific lightning locations in its warnings (I am not making
> > this up...).
> >
> > It's one of the hazards of having a type of data that is highly
> > commercially valuable to a small number of easily identifiable
> > clients (the power companies) - fortunately most meteorological data
> > isn't like that. My understanding is that the lightning network is
> > fairly cheap to run and that the charges are so high because GPATS
> > has a monopoly and will charge whatever the market will bear.
> > Unfortunately, the fact that a commercial provider is already
> > established means that there is no way that the Government will
> > ever allow the Bureau to establish a non-commercial lightning
> > detection network (and if they tried the ACCC would jump on them
> > very quickly indeed).
> >
> > Blair Trewin
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027
From: Pjcorlett at aol.com
Date: Thu, 11 Nov 1999 20:37:11 EST
Subject: aus-wx: Lightning Detection Physics
To: aussie-weather at world.std.com
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Hi folks,
            A few weeks ago I was watching a documentary on lightning which 
featured a lightning photographer in the US who was using a hand-held 
lightning detector which was able to (almost instantaneously) give him the 
distance to each CG from his location. This got me wondering how such devices 
worked??

I assume that it works by measuring the RF pulse given off by the strike. You 
could measure the amplitude of the pulse but that would only be of use to you 
if: (a) all lightning strikes give off pulses at the same amplitude, and (b) 
the amplitude of these pulses is attenuated at a constant rate with distance, 
regardless of the atmospheric conditions. Both of these assumptions sound 
highly dodgey so I have concluded that measuring the amplitude of the pulse 
alone cannot give you the distance to the strike.

The second idea I had is that the device might work in an analogous method to 
earthquake detection, which relies on two different sets of waves travelling 
at different velocities, so that the difference in arrival times of the two 
sets of waves is proportional to the distance of the observer to the source. 
However, EM waves travel at the speed of light which is supposed to be a 
constant (in a vacuum, at least). I'm not familiar enough with EM physics to 
know if different wavelengths travel at different velocities through the 
atmosphere but if they did, I would imagine that the difference in velocity 
would be very slight indeed and that the device would need to have a very 
fast clock to measure the difference in arrival times.

Anyway, that is as far as my musings have got me. I'm sure there are people 
on this list who know more on the subject than I do so... am I missing 
something obvious or are these devices fairly sophisticated??  Do the 
lightning detection networks use a similar method or do they use very precise 
directional antennae and triangulation to find the position of the strike?

Cheers,

Pete.
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028
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: Re: aus-wx: Who Turned off the Heat?
To: aussie-weather at world.std.com
Date: Fri, 12 Nov 1999 12:50:16 +1100 (EST)
X-Mailer: ELM [version 2.4 PL23]
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> 
> All:
> 
> Interestingly enough, this fall here in the US is very warm, much above
> normal over much of the nation except for the northeast US and the
> northwest US.  It has also been very dry.  The Gulf of Mexico from which
> much of the central and easter US gets its moist air and precipitation has
> been "closed for business".  That is, it has been blocked by a weak surface
> high pressure ridge which repeatedly develops each time it begins to break
> down.  This has gone on now during the last month to two months.  Over all,
> there is a large blocking 500 mb ridge anchored near the center of the US. 
> Thus, only the northwest and northeast US get cool and wet weather.
> 
> Here in the central US we have been averaging 15 to 20 degrees F above
> normal and we have had very little precipitation over the last three months
> after a very wet period last spring.  The weather is beautiful but
> deceptively so because we are in the midst of a minor (at this time)
> drought.
> 
> Believe me, there are no storms to chase here!
> 
> Les 

It's been quite an extraordinary week for late-season warmth in the
central US, especially the northern part. High 20s C/80s F have 
occurred as far north as Minnesota (where mean maxima at this time of
year would be around 5 C), and 31 C at Pierre, South Dakota.

(Speaking of American temperatures, I've noticed that the maxima
reported in Australian newspapers for Chicago and Los Angeles are
substantially lower this year than what the American web sites show.
I'm guessing that this is because the internationally-reported
obs from those centres are coming from, respectively, somewhere near
Lake Michigan and LA International Airport (which is very close to the
coast), rather than further inland. It was a notably cool summer in
coastal California - to the extent that October was, by some margin, 
LS's warmest month of the year - but not that cool!)

Starting to get fairly cold in eastern Europe, though - -14 at Moscow
two days ago.

Blair Trewin
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029
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: RE: aus-wx: Who Turned off the Heat? (Brisbane wx)
Date: Fri, 12 Nov 1999 11:58:43 +1000
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Shorts & T-shirt is comfortable.  When that is not, then it is either too
cold or too damned hot.  

Meantime, looks like a bit of light activity around at present, Looked good
this morning with a thundery at Toowoomba at 9:00am.  Bad news for the folks
at Cedar Pocket though - Solid pink there at present!

John
>snip
Hi Les and all,

Les Crossan wrote:

>
> and you think 28 degrees is cold....
28C is comfortable, 24C and below for a max is cold.

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 -----------------------jacob at iinet.net.au------------------------------

030
X-Mailer: Microsoft Outlook Express Macintosh Edition - 4.5 (0410)
Date: Fri, 12 Nov 1999 14:10:59 +1100
Subject: aus-wx: Job opportunity
From: "Mark Hardy" [mhardy at magna.com.au]
To: Weather Junkies [aussie-weather at world.std.com]
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

To any meteorologists or computer boffins on this list we have a couple new
positions to fill at TWC/Weather 21.
Regards, Mark
--
_____________________________________________________
Mark Hardy.
The Weather Company Pty. Ltd.
Level 2, 7 West Street, North Sydney 2060
Ph (02) 9955 7704. Fax (02) 9955 1536.
Mobile 0414 642 739
email: mhardy at theweather.com.au
_____________________________________________________


031
Attachment Converted: "c:\eudora\attach\Met-advert-19991103.pdf"
From: "W.A. (Bill) Webb" [billwebb at tpgi.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: Who Turned off the Heat?
Date: Fri, 12 Nov 1999 10:45:37 +1100
X-Mailer: Microsoft Outlook Express 4.72.2106.4
Sender: aussie-weather-approval at world.std.com
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Is this associated with ENSO in your area Les ?

We are experiencing a weak (currently) la nina episode, but with a southern
oscillation index (SOI) in a rapidly rising phase, which, for us, indicates
an increasing probability of a wet wet season, and maybe a few cyclones.

Regards,
Bill,
Proserpine, Qld.

-----Original Message-----
From: Leslie R. Lemon [lrlemon at compuserve.com]
To: INTERNET:aussie-weather at world.std.com [aussie-weather at world.std.com]
Date: Friday, 12 November 1999 3:10
Subject: Re: aus-wx: Who Turned off the Heat?


>All:
>
>Interestingly enough, this fall here in the US is very warm, much above
>snip

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032
From: "W.A. (Bill) Webb" [billwebb at tpgi.com.au]
To: "Aussie Weather Net" [aussie-weather at world.std.com]
Subject: aus-wx: First Aussie cyclone for Season?
Date: Fri, 12 Nov 1999 13:24:01 +1100
X-Mailer: Microsoft Outlook Express 4.72.2106.4
Sender: aussie-weather-approval at world.std.com
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Hi all,

Enjoying the discussion on the tornado, and on radar interpretation.

Question is, is that a potential cyclone some models are predicting -
forming as a low in the northern gulf of Carpenteria around Sunday, and
moving west south west to be off the Kimberley's by Wednesday next ?

Regards,
Bill
Proserpine, Q.


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033
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: RE: aus-wx: Brisbane wx
Date: Fri, 12 Nov 1999 13:57:05 +1000
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Hi All,

Nice little multi-cell passed over Sumner around 45 mins ago, dropped about
10mm (guess), lightning every couple of mins and a CG not far away, Gusty
wind with the rain backed around from S to N thru West over 15 mins or so as
the core passed.  Interesting from the point of view that this storm type is
comparitively  rare in Brisbane.

John.

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034
From: "as029 at powerup.com.au" [as029 at powerup.com.au]
To: [aussie-weather at world.std.com]
X-IPAddress: 147.209.206.2
X-SessionId: u6h44fvq.6pu
Date: Fri, 12 Nov 1999 04:27:19 "GMT"
X-mailer: AspMail 2.62 (SMTP85107B)
Subject: aus-wx: New ENERGEX Web Page
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hello All,

When the new ENERGEX web page is released the path to the lightning tracker will be;

http://www.energex.com.au/news/lightningtracker.asp

Alternatively, click on NEWS (top right hand corner), then Lightning Tracker, Then click on the image "Go to Lightning Tracker".

Regards,
Anthony Spierings


__________________________________________________________
Message sent by MyMail http://www.mymail.com.au/

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035
From: Jason Smith [s348771 at student.uq.edu.au]
To: "'Australian Weather Mailing List'" [aussie-weather at world.std.com]
Subject: aus-wx: Re: Help me!!
Date: Fri, 12 Nov 1999 16:18:25 +1000
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Whooops Sorry - wrong list

Looks like the storms have cleared Briz for now too :-(
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036
X-Sender: astroman at mail.chariot.net.au
X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58
Date: Fri, 12 Nov 1999 16:59:43 +1030
To: aussie-weather at world.std.com
From: astroman [astroman at chariot.net.au]
Subject: Re: aus-wx: Bom registered services
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

I meant small units from people who may already have systems installed, 
there are some units out there that let you put the information collected 
on the web. Sorry should have mentioned that in the last post...

At 07:49 AM 12/11/99 +1030, you wrote:
>Maybe it's time we had our own AWS around Australia, would cost less in 
>the long run......
>
>
>
>
>
>At 01:51 AM 12/11/99 +0800, you wrote:
>>Hi all,
>>
>>Tonight I find this devastating note on one my favourite
>>page on the internet and what has been my start page for a
>>few years.
>>
>>http://www.bom.gov.au/products/IDO30W01.shtml
>>
>>and the note
>>NOTE:
>>The Bureau is reviewing access to weather observations. The
>>observations on this web site have been freely available for
>>a trial period. In the future however, the
>>Bureau may provide this frequency of current observations
>>(10 minute updates) only to Registered Users. Less
>>frequently updated observations are expected to
>>remain freely available.
>>
>>What the hell is this about.
>>
>>Does this mean that to get up to date observations from
>>around Perth I will now need to become a registered user
>>with the enevitable cost of doing so??????
>>
>>What is becoming of the Bom.
>>
>>Anyone else from around Australia about to lose the most up
>>to date and accurate real time observations from their city
>>too?
>>
>> >From an upset West Australian.
>>--
>>Michael Fewings
>>
>>Photographer of:
>>Strike One Lightning Photos
>>http://strikeone.com.au
>>
>>Web Master of:
>>Australian Severe Weather Association Inc.
>>http://www.severeweather.asn.au
>>
>>
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>>  -----------------------jacob at iinet.net.au------------------------------
>
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037
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: aus-wx: Ships of the desert...
To: aussie-weather at world.std.com (Aussie Weather)
Date: Fri, 12 Nov 1999 18:04:31 +1100 (EST)
X-Mailer: ELM [version 2.4 PL23]
Sender: aussie-weather-approval at world.std.com
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Not strictly meteorological, but we've been doing some work lately
in the Bureau on identifying ship observations with invalid (i.e.
land based) coordinates, so that's enough of an excuse to share this
one...

Some of you will have seen a news report today that an Australian
yacht was attacked by pirates off the coast of Yemen. All the reports
I've seen on the subject have said that the yacht was 100 nautical
miles north-east of Aden.

If this position was correct, then pirates would be the least of the
yacht's problems - being 50 kilometres inland and 1600 metres above
sea level would be a somewhat more pressing difficulty. 

Must have been one hell of a storm surge...

Blair Trewin
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038
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: Re: aus-wx: Energex Lightning Tracker
To: aussie-weather at world.std.com
Date: Fri, 12 Nov 1999 18:10:01 +1100 (EST)
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> 
> Blair
> 
> Almost right. Actually, there are 2 lightning suppliers and they compete
> very aggressively. The other one being LPATS. Yes, the price is high but not
> because there is a monopoly but because the number of paying clients is
> small. The network is fairly expensive to run when factored over a small
> client base. IN addition, the capital investment is high because the sensors
> (apparently) cost around $200,000 each to install and bring online. The bulk
> of the data fees is used to recoup capital.

I'd presumed that because of the similarity of the names, GPATS and 
LPATS were under the same ultimate ownership (I'm surprised they were
allowed to register their business names if this wasn't the case).
You'll know more about this than I do, though.

> You are right in suggesting the data would be cheaper if it had value to a
> broader base - ain't this always the case!! We have tried to broker deals
> between media companies and LPATS/GPATS in the past and found that even the
> largest TV networks can't justify the rates that the lightning suppliers
> need to charge to keep price parity with their core customers. The time
> delay on the data is the only way that this data can be made widely
> available without affecting the existing contracts.

I assume that issuing the data on a 15-minute delay makes it useless
for their commercial customers (otherwise, it wouldn't be available
on the Energex site). If that's the case, what's the problem with
delayed data being available publicly for all areas that it exists?

Blair Trewin
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039
From: "Michael Thompson" [michaelt at ozemail.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: Job opportunity
Date: Fri, 12 Nov 1999 21:07:53 +1100
X-Mailer: Microsoft Outlook Express 5.00.2014.211
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Good to see you posting this to the list Mark  ( even if I have no hope -
not even my HSC let alone Uni )

Regards
Michael

----- Original Message -----
From: Mark Hardy [mhardy at magna.com.au]
To: Weather Junkies [aussie-weather at world.std.com]
Sent: Friday, 12 November 1999 14:10
Subject: aus-wx: Job opportunity


> To any meteorologists or computer boffins on this list we have a couple
new
> positions to fill at TWC/Weather 21.
> Regards, Mark
> --
> _____________________________________________________
> Mark Hardy.
> The Weather Company Pty. Ltd.
> Level 2, 7 West Street, North Sydney 2060
> Ph (02) 9955 7704. Fax (02) 9955 1536.
> Mobile 0414 642 739
> email: mhardy at theweather.com.au
> _____________________________________________________
>
>


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 -----------------------jacob at iinet.net.au------------------------------

040
From: "Michael Thompson" [michaelt at ozemail.com.au]
To: [aussie-weather at world.std.com]
Subject: aus-wx: Next week still interesting !
Date: Fri, 12 Nov 1999 21:32:52 +1100
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GASP has been updated is still holding out for major trough and low
situation mid next week.

The newly returned PCMDI site ( http://www-pcmdi.llnl.gov/fiorino/wxmap/ )
has the NGP model doing similar things. The ECM model is also entertaining a
trough but not to the extent of the above models.

Of real interest will be the predicted jet situation over the NSW/QLD border
in conjunction with this, the jet will be very strong. Do I smell a
supercell in the Darling Downs.

Michael Thompson
http://thunder.simplenet.com


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 -----------------------jacob at iinet.net.au------------------------------

041
From: "Greg Curtis" [curtisg at ecn.net.au]
To: [aussie-weather at world.std.com]
Subject: aus-wx: DIY lightning detection
Date: Fri, 12 Nov 1999 20:53:25 +1000
X-Mailer: Microsoft Outlook Express 5.00.2615.200
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com









This isn't a free plug, but I can remember reading a review of a product called stormtracker in a ham radio magazine (Radio and Communications) late last year. The manufactuer has a web site at
 
 
The blurb says it is easy to install and will detect lightning up to 300 miles away.
 
The reviewer in the magazine stated it was easy to install and is run through a computer, which connects to a small outside aerial. Although it is made in the US of A Stormtracker was reviewed in Australia and worked okay.
 
Greg Curtis
Brisbane
 
 
042 Date: Fri, 12 Nov 1999 21:56:54 +1100 From: Ben Quinn [bodie at flatrate.net.au] X-Mailer: Mozilla 4.61 [en] (Win95; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Brisbane wx Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hey John, everyone.. Well today was quite interesting.. the storms appeared to be 'cold air Cb' storms to me at first.. the anvils were glatiated, and the cloudtops were dismal (not that all cold air Cb's are like that - that's just how they were today).. just after lunch a cell began to approach me from the SW (the cell that effected you i think).. the cloudtops were deadset dismal on this thing as well, and the anvil was glatiated.. not really looking like something you want to chase.. but as it approached the rain curtain was VERY dark.. i had nothing better to do so i decided to drive out to my vantage point and have a look.. and WOW!! Not long after i got to my vantage point this thing really intensified.. i don't know what it looked like from behind at that stage (James chambers was saying it looked terrible from behind when i left), but it has some GREAT features on the front end.. a great raincurtain, with a really really nice shelf cloud.. and a line of rain free bases ending from the northern side of the storm as far as the eye could see! When i first got to my vantage spot i could hear no thunder or see no lightning.. within 5 mins there was continuous rolling thunder and Cg's every min or so, some of which were quite intense.. well to make a long story short, i chased this storm and a line of activity for close to 2 hours! I certainly got MUCH more than i was expecting! I ended up NNE of Caboulture after staying ahead of the storm for about 45 mins, snapping pics here and there of the storm features, and FANTASTIC rain free updraft bases to its NW.. I took at least 15-18 pictures, some of which are really really high quality pictuers.. some of these rain free bases were just breathtaking.. so turbulent!! And there was so much green in some of them! The whole sky around me just looked like it was going to >>>>EXPLODE<<<< any minute.. you wouldn't pick it though! Radar was OK, but these storms were so low topped you could barely see them on the sat pics! And when i eventually let the storms go over the top of me they looked like crud from behind again.. it was quite odd.. although i think they really fizzed after they passed over me.. I also saw some very nice lightning.. with several close Cg's ( < 100m - 1 second or less thunder) and some fork lightning striking outside the storm at 45 degrees! I have some radar of the storms i am talking about - not spectacular in any way, but here it is anyway.. interesting that the storm never reached red on radar in the local loop, but in the broad loop it remained red on radar for 40 mins straight NW of Brisbane (at the time i was chasing it - it looked like it would have been red on radar).. You can see some mostly very light precip from the rain free bases (they appeared rain free to me.. but had very very light precip obviously).. Local scale loop of the storms.. http://www.bsch.simplenet.com/archiveddata/assorted/12-11-99/brisbane/loop.htm Broad scale loop http://www.bsch.simplenet.com/archiveddata/assorted/12-11-99/brisbane/broadloop.htm Looks like our next storms will be on Tuesday.. and possibly Wednesday.. John Woodbridge wrote: > > Hi All, > > Nice little multi-cell passed over Sumner around 45 mins ago, dropped about > 10mm (guess), lightning every couple of mins and a CG not far away, Gusty > wind with the rain backed around from S to N thru West over 15 mins or so as > the core passed. Interesting from the point of view that this storm type is > comparitively rare in Brisbane. > > John. > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 043 X-Originating-IP: [203.35.83.4] From: "Halden Boyd" [haldenboyd at hotmail.com] To: aussie-weather at world.std.com Subject: Re: aus-wx: Energex Lightning Tracker spam Date: Fri, 12 Nov 1999 04:05:01 PST Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Appreciate.......i know Northpower (nthn nsw) uses and abuses the same......sus part is they don't make it available on the net....northpower as well have the audacity to use their power (excuse the pun) to provide an internet POP using their mega puter!!!!!! fark me >From: Blair Trewin >Reply-To: aussie-weather at world.std.com >To: aussie-weather at world.std.com >Subject: Re: aus-wx: Energex Lightning Tracker >Date: Fri, 12 Nov 1999 10:45:40 +1100 (EST) > > > > > Hi all, > > > > As some of the QLD members already know, I've been in 'negotiations' > > with Energex for the past few weeks, trying to get the more frequent > > updates back for SE QLD. After many phone calls to both Energex, and > > Channel 7 (both of who said each other controlled the live feed!), I was > > finally able to get a contact to write a formal request through. > > > > Unfortunately, it can't be done. Energex is bounded by contract, to > > GPATS to: > > > > a) To have a 15min delay in data (this was OK, and most people know > > about it.) > > b) To only give out data every 15 minutes > > c) To only show SE QLD, and no longer have all of QLD as they did last > > year. > > > > When I come back from the end of year chase in December, I'll commence > > negotiations with GPATS to persuade them otherwise. I don't like the > > probability though, given that I know one QLD member actually phoned and > > asked how much the data costs, and got laughed at and said "you'd never > > be able to afford it" (!) > >GPATS is very aggressive in protecting its position - for example, >although the Bureau has access to the GPATS data, it is not allowed >to give specific lightning locations in its warnings (I am not making >this up...). > >It's one of the hazards of having a type of data that is highly >commercially valuable to a small number of easily identifiable >clients (the power companies) - fortunately most meteorological data >isn't like that. My understanding is that the lightning network is >fairly cheap to run and that the charges are so high because GPATS >has a monopoly and will charge whatever the market will bear. >Unfortunately, the fact that a commercial provider is already >established means that there is no way that the Government will >ever allow the Bureau to establish a non-commercial lightning >detection network (and if they tried the ACCC would jump on them >very quickly indeed). > >Blair Trewin > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 044 X-Originating-IP: [203.35.83.4] From: "Halden Boyd" [haldenboyd at hotmail.com] To: aussie-weather at world.std.com Subject: Re: aus-wx: DIY lightning detection Date: Fri, 12 Nov 1999 04:09:04 PST Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Greg thanx very much >From: "Greg Curtis" >Reply-To: aussie-weather at world.std.com >To: >Subject: aus-wx: DIY lightning detection >Date: Fri, 12 Nov 1999 20:53:25 +1000 > >This isn't a free plug, but I can remember reading a review of a product >called stormtracker in a ham radio magazine (Radio and Communications) late >last year. The manufactuer has a web site at > >http://www.boltek.com/ > >The blurb says it is easy to install and will detect lightning up to 300 >miles away. > >The reviewer in the magazine stated it was easy to install and is run >through a computer, which connects to a small outside aerial. Although it >is made in the US of A Stormtracker was reviewed in Australia and worked >okay. > >Greg Curtis >Brisbane > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------

Document: 991112.htm
Updated: 21 November 1999

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