Date: Wed, 27 Sep 2000 00:02:16 +1000
From: Mark <bmark at bigpond.net.au>
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Subject: Re: aus-wx: hello
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I'm in Lane Cove and the damn thing missed me :( but i have now met some ppl in
irc so all is not lost :)

Max King wrote:

> Hey Mark!
>
> Welcome to the list......
> I'm at Willoughby and we're getting hammered :)
>
> Max
>
> ----- Original Message -----
> From: Mark <bmark at bigpond.net.au>
> To: <aussie-weather at world.std.com>
> Sent: Tuesday, September 26, 2000 10:06 PM
> Subject: aus-wx: hello
>
> > Hi there!
> >
> > I'm a newbie here and i'm just writing to let you know there is thunder
> and
> > lightning close to north sydney. you prolly know that already but hey i'm
> > trying :))
> >
> > Mark.
> >
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> >  -----------------------jacob at iinet.net.au------------------------------
> >
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--
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Click here for Free Video!!
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 -----------------------jacob at iinet.net.au------------------------------
From: wbc at ozemail.com.au (Laurier Williams)
To: aussie-weather at world.std.com
Subject: aus-wx: COMPLETELY OFFTOPIC: The Bureau and the Bleeding Obvious; was Rain is Wet...Really???
Date: Tue, 26 Sep 2000 15:06:19 GMT
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From the BoM final storm warning, though maybe it's standard fare and
I just haven't noticed:

>The RTA recommends motorists switch their lights & wipers on & slow down in
>the wet.

Wipers in the rain! Now there's a thought. 

Laurier

On Tue, 26 Sep 2000 04:53:12 EST, "Hector Pascal"
<hectorpascal at hotmail.com> wrote:

>According to the BoM's Olympic forecast, when it rains, it means it will be 
>wet!!
>"The rain will produce some wet conditions tomorrow..."
>- Hector
>_________________________________________________________________________
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 -----------------------jacob at iinet.net.au------------------------------
From: wbc at ozemail.com.au (Laurier Williams)
To: aussie-weather at world.std.com
Subject: aus-wx: WEATHER: Torrential rain north of Mt Victoria NSW
Date: Tue, 26 Sep 2000 15:18:32 GMT
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Coming home from Sydney via Bells Line of Road this evening, I came
through torrential rain for about 20km through Bell and almost into
Mount Victoria around 9pm. The road was barely visible below the haze
of splatting raindrops most of the time. Fog varied the visibility
between 50 and 200m, diffusing the frequent and close lightning into
blinding glare followed by coalmine black. As I was riding a
motorbike, and not comfortably cocooned in a car, the storm got the
adrenaline going more ways than one -- I'll dream I'm riding down a
strobing white tunnel bounded by red and white reflectors tonight, cos
that's all I could see for an exciting 20 minutes or so. 

Given that the radar shows storm movement as easterly at about 60km/h,
and I was riding west then south, the duration/extent of the heavy
rain was unusual. Unfortunately, there are no raingauges in the area,
though Lithgow may have caught some of it.

Thunder and light to moderate rain showers continue here at 1am.  


-- 
Laurier Williams
Australian Weather News & Links
http://ausweather.simplenet.com
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 -----------------------jacob at iinet.net.au------------------------------
From: "John Woodbridge" <jrw at pixelcom.net>
To: <aussie-weather at world.std.com>
Subject: RE: aus-wx: WEATHER: Torrential rain north of Mt Victoria NSW
Date: Wed, 27 Sep 2000 00:46:23 +1000
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Hi All,

Awesome radar at 01:30am NSW time, semicircle of pink/red/green closing in
around Newcastle - would have to be the place to be right now.
www.pixelcom.net/jrw/stormpic/260900will.gif

John.

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 -----------------------jacob at iinet.net.au------------------------------
From: Harald Richter <hrichter at enterprise.nssl.noaa.gov>
Subject: aus-wx: WEATHER: NSW squall lines
To: aussie-weather at world.std.com (Australian Severe Weather Association)
Date: Tue, 26 Sep 2000 10:27:38 -0500 (CDT)
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Hi folks,

At 2 am EST (1500 UTC) I am observing two major squall lines 
in NSW.  One is extending from Canberra NNW towards Parkes,  
the other from Gosford NNW to Narrabri.  The western line
looks more impressive on the lightning network,  the eastern
line shows higher reflectivities.  My take on that is 
overshooting radar beams as you get into central NSW (sigh).

The southern ends of both lines tap into better surface 
moisture which is probably connected to the better flash rate there.
The eastern line is going to run into even better surface moisture
soon (Td ~ 15 C),  but it also moves into an area of higher surface pressure
which might weaken it over time.

The very old 23 UTC (25 Sep) Wagga sounding shows decent upper-level flow and 
some amount of CAPE in a mainly moist adiabatic stratification.
Is there a 11/12 UTC (26 Sep) Wagga sounding?
The 11 UTC (26 Sep) Moree sounding has no flow aloft and thus spells
trouble for the northern end of the eastern line.
Williamstown has no 11 UTC sounding either, bummer.
So,  the flow regime favours the southern part of both squall lines
as well.

I guess the season has begun!

Harald
 

-- 
-------------------------------------------
Harald Richter
NOAA/National Severe Storms Laboratory
1313 Halley Circle
Norman, OK 73069, U.S.A.
ph.:    (405) 366-0430
fax:    (405) 579-0808
email:  hrichter at enterprise.nssl.noaa.gov
web:    http://www.nssl.noaa.gov/~hrichter
-------------------------------------------
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 -----------------------jacob at iinet.net.au------------------------------
Date: Tue, 26 Sep 2000 12:36:35 -0400
From: "Leslie R. Lemon" <lrlemon at compuserve.com>
Subject: RE: aus-wx: WEATHER: Interesting Radar
To: "INTERNET:aussie-weather at world.std.com" <aussie-weather at world.std.com>
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Patrick Tobin wrote:

> David - the help page at
> 
> http://ows.bom.gov.au/products/reg/wwrp/wwrp_help_anal.html
> 
> says that the wind direction and strength is
> detected using Doppler radar.

Single Doppler radar detects, in addition to the power returned or
reflectivity, the *mean radial Doppler velocity* and the *velocity spectrum
width*.  I will mention a few things I have learned about Doppler velocity
in particular.   Note the radar, when measuring velocity, a scaler
quantity, is measuring only the component of the wind that is parallel to
the radar viewing angle.  In other words, the component parallel to the
radar beam at any given moment and location.  Of course, the component
changes with the changing viewing angle of the radar.  In order to derive
the wind from single Doppler velocities, you need other sources of
information such as independent surface wind measurements scattered about
it the radar sampling area, a second Doppler radar viewing at right angles
to the first (which can only be done in certain limited areas), or some
other source.  You must also keep in mind that the height of the Doppler
velocity wind measurements increases with increasing range from the radar
owing to the earth's curvature.  If there is sufficient echo encircling the
radar, you can derive the wind via use of an algorithm.  (Is all this very
confusing!!??  <S>)

The bottom line is that deriving wind and understanding the "signatures" in
Doppler velocity is not a simple process.  I have taught a 5-week and a
4-week Doppler radar training course with another mate in which we spend
several days teaching single Doppler velocity interpretation.  But  you
also need considerable experience doing the interpretation.  Even then two
experienced "interpreters" can disagree.  

In one of the papers I sent to Jane we, the authors, derived a list of
rules that are spelled out that we used to derive the wind speed and
direction.  Additionally, here in the states I also do my best to teach a
two-day, 16-hour seminar on Doppler radar which includes on the first day
radar theory, radar limitations, Doppler radar products and algorithms, and
Doppler velocity and spectrum width interpretation.  The second day is
devoted to teaching the theory of convective storms, severe convective
storms, and the application and interpretation of Doppler radar to severe
storms.  This is a very intense seminar, somewhat like trying to take a
drink from a fire hose <S>.  It is taught mostly to television
meteorologists here but storm chasers, students, college professors,
emergency managers, even etymologists and ornithologists, etc. take the
seminar.

I am sure there are others in the BoM who could or may already teach such a
seminar.  Perhaps they could be a special speaker at one or more ASWA
meetings.  As you all know, this is an imperfect science (and I am a very
imperfect student who has a lot to learn despite 32 years in the business!)
 LOL..

Les
************************
Leslie R. Lemon
Radar, Severe Storms, & Research Meteorologist
Tel. 816-373-3533, 816-213-3237
E-Mail: lrlemon at compuserve.com
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 -----------------------jacob at iinet.net.au------------------------------
From: Harald Richter <hrichter at enterprise.nssl.noaa.gov>
Subject: RE: aus-wx: WEATHER: Interesting Radar
To: aussie-weather at world.std.com (Australian Severe Weather Association)
Date: Tue, 26 Sep 2000 13:34:53 -0500 (CDT)
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Hi Les,

I believe this discussion is of interest to the list, hence I air
my "musings" on line.  

Radar Les wrote:

> ... <small snip> ... Note the radar, when measuring velocity, a scaler
> quantity, is measuring only the component of the wind that is parallel to
> the radar viewing angle.  In other words, the component parallel to the
> radar beam at any given moment and location.  Of course, the component
> changes with the changing viewing angle of the radar.  In order to derive
> the wind from single Doppler velocities, you need other sources of
> information such as independent surface wind measurements scattered about
> it the radar sampling area, a second Doppler radar viewing at right angles
> to the first (which can only be done in certain limited areas), or some
> other source.  

In the absence of any aliasing concerns, isn't the PRINCIPAL process of 
radar velocity estimations a fairly simple one?  For a given tilting
angle of the radar beam a Doppler radar can estimate the along-beam 
component (or projection) of the full three-dimensional velocity vector
within the cone-shaped surface swept out by the beam as the radar does
a 360 sweep.  A second Doppler radar (located at some distance from the first radar) 
could provide an estimate of the same three-dimensional velocity vector in the 
form of a projection along *its* beam within its cone-shaped surface (I know, 
a picture would help here).  At (and near) those points where the two cones 
intersect we have an estimate of the true velocity vector in the form of its two
along-beam projections.  Near these points we should be able to have 
fairly decent horizontal wind estimates.  All these musings are 
strictly GEOMETRICAL,  ignoring all issues involving radar-specific
concerns such as signal quality, aliasing and so forth.  Les, does
this picture work for you? 


> ...<more snip>... If there is sufficient echo encircling the
> radar, you can derive the wind via use of an algorithm.  (Is all this very
> confusing!!??  <S>)

Yep :)  Something tells me that this sentence is awfully deep.  Does it
involve 
   \begin{cryptic gear}
   matching slow pulse rate reflectivities with fast pulse rate range-folded
   velocity data using the Les Lemon 300 horse power fold-it-back algorithm? 
   \end{cryptic gear}
Back to reality... :)

> This is a very intense seminar, somewhat like trying to take a
> drink from a fire hose... 

Do you have web-accessible seminar notes?  

Cheers,  Radarald


-- 
-------------------------------------------
Harald Richter
NOAA/National Severe Storms Laboratory
1313 Halley Circle
Norman, OK 73069, U.S.A.
ph.:    (405) 366-0430
fax:    (405) 579-0808
email:  hrichter at enterprise.nssl.noaa.gov
web:    http://www.nssl.noaa.gov/~hrichter
-------------------------------------------
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 -----------------------jacob at iinet.net.au------------------------------
Date: Tue, 26 Sep 2000 16:22:40 -0400
From: "Leslie R. Lemon" <lrlemon at compuserve.com>
Subject: RE: aus-wx: WEATHER: Interesting Radar
To: "INTERNET:aussie-weather at world.std.com" <aussie-weather at world.std.com>
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Radar Harald wrote:

> In the absence of any aliasing concerns, isn't the PRINCIPAL process of 
> radar velocity estimations a fairly simple one?  For a given tilting
> angle of the radar beam a Doppler radar can estimate the along-beam 
> component (or projection) of the full three-dimensional velocity vector
> within the cone-shaped surface swept out by the beam as the radar does
> a 360 sweep.  A second Doppler radar (located at some distance from the
first radar) 
> could provide an estimate of the same three-dimensional velocity vector
in the 
> form of a projection along *its* beam within its cone-shaped surface (I
know, 
> a picture would help here).  At (and near) those points where the two
cones 
> intersect we have an estimate of the true velocity vector in the form of
its two
> along-beam projections.  Near these points we should be able to have 
> fairly decent horizontal wind estimates.  All these musings are 
> strictly GEOMETRICAL,  ignoring all issues involving radar-specific
> concerns such as signal quality, aliasing and so forth.  Les, does
> this picture work for you? 

Yes, this is a description of dual Doppler analysis.  I have done this
before, in fact Roger, Don, and myself were the first to do it (manually)
on a tornadic storm.  We did publish that work.  I referred to something in
the portion you copied in your reply concerning dual Doppler analysis but
your description here is much more complete and cogent than mine!!  Thank
you!!
 
> > ...<more snip>... If there is sufficient echo encircling the
> > radar, you can derive the wind via use of an algorithm.  (Is all this
very
> > confusing!!??  <S>)
> 
> Yep :)  Something tells me that this sentence is awfully deep.  Does it
> involve 
>    \begin{cryptic gear}
>    matching slow pulse rate reflectivities with fast pulse rate
range-folded
>    velocity data using the Les Lemon 300 horse power fold-it-back
algorithm? 
>    \end{cryptic gear}

LOL!!!  The scanning radar will, when graphically displaying the results,
measure a sine wave pattern.  The algorithm places a 'best fit' idealized
sine wave and the result will be a sounding like, wind vector plot of the
horizontal wind with height that applies to the wind across the radar site.
 This is called the VAD (velocity azimuth display) Wind Profile product in
NEXRAD.

> Do you have web-accessible seminar notes?  

I have a student guide which covers a portion of the material.  As far as
web-accessibility is concerned, I will have to check on that.

Radar Les....<S>
************************
Leslie R. Lemon
Radar, Severe Storms, & Research Meteorologist
Tel. 816-373-3533, 816-213-3237
E-Mail: lrlemon at compuserve.com
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 -----------------------jacob at iinet.net.au------------------------------
X-Originating-IP: [155.144.17.252]
From: "Simon" <borgprocrast at hotmail.com>
To: aussie-weather at world.std.com
Subject: aus-wx: OFFTOPIC: Weather and Accountants.
Date: Wed, 27 Sep 2000 07:30:07 EST
X-OriginalArrivalTime: 26 Sep 2000 21:30:07.0660 (UTC) FILETIME=[F11B8EC0:01C02800]
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<x-flowed>
Incidentally when I slipped and typed http://www.aswa.org I got the 
"American Society of Women Accountants"

No major point to this email, just thought it was funny.
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

Share information about yourself, create your own public profile at 
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 -----------------------jacob at iinet.net.au------------------------------
</x-flowed>
From: "Phil Smith" <drdisk at hktrade.com>
To: <aussie-weather at world.std.com>
Subject: Re: aus-wx: WEATHER: Interesting Radar
Date: Wed, 27 Sep 2000 05:29:00 +0800
Organization: Doctor Disk
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One factor of importance is the amount of computing power needed.
I know little about these things compared to you guys, but the HKO here
recently spent billions on a Cray super computer and last year got their
second Doppler radar station operational and tested just in time to have a
visiting typhoon pass about halfway between the two mountains upon which the
two radars are located.
They stopped all other processes running on the Cray and got it to do some
figuring out of wind speeds, etc. from the two radar stations.
Reportedly the Cray took hours to come up with meaningful results so there
was nothing they could do about having anything up on their web-site in
anything approaching real time.
However, some of us local weather enthusiasts have been wondering whether
this was just an excuse from HKO to cover up the fact that they had just not
wanted to have this sort of information readily available to the public
anyway.
Maybe you guys can shed some light on that.

Phil
<><
Phil Smith

Director
Doctor Disk Limited
Unit B, 4th Floor, Imperial Heights
Belair Gardens, Shatin, NT
HONG KONG S.A.R.
People's Republic of China
Phone +852 2646 4672
Fax +852 2637 4006
E-mail: phil at drdisk.com.hk
Home e-mail: drdisk at hktrade.com
Web: http://www.drdisk.com.hk
Typhoon Information: http://www.drdisk.com.hk/cyclones.htm

----- Original Message -----
From: "Leslie R. Lemon" <lrlemon at compuserve.com>
To: <aussie-weather at world.std.com>
Sent: Wednesday, 27 September 2000 04:22
Subject: RE: aus-wx: WEATHER: Interesting Radar


> Radar Harald wrote:
>
> > In the absence of any aliasing concerns, isn't the PRINCIPAL process of
> > radar velocity estimations a fairly simple one?  For a given tilting
> > angle of the radar beam a Doppler radar can estimate the along-beam
> > component (or projection) of the full three-dimensional velocity vector
> > within the cone-shaped surface swept out by the beam as the radar does
> > a 360 sweep.  A second Doppler radar (located at some distance from the
> first radar)
> > could provide an estimate of the same three-dimensional velocity vector
> in the
> > form of a projection along *its* beam within its cone-shaped surface (I
> know,
> > a picture would help here).  At (and near) those points where the two
> cones
> > intersect we have an estimate of the true velocity vector in the form of
> its two
> > along-beam projections.  Near these points we should be able to have
> > fairly decent horizontal wind estimates.  All these musings are
> > strictly GEOMETRICAL,  ignoring all issues involving radar-specific
> > concerns such as signal quality, aliasing and so forth.  Les, does
> > this picture work for you?
>
> Yes, this is a description of dual Doppler analysis.  I have done this
> before, in fact Roger, Don, and myself were the first to do it (manually)
> on a tornadic storm.  We did publish that work.  I referred to something
in
> the portion you copied in your reply concerning dual Doppler analysis but
> your description here is much more complete and cogent than mine!!  Thank
> you!!
>
> > > ...<more snip>... If there is sufficient echo encircling the
> > > radar, you can derive the wind via use of an algorithm.  (Is all this
> very
> > > confusing!!??  <S>)
> >
> > Yep :)  Something tells me that this sentence is awfully deep.  Does it
> > involve
> >    \begin{cryptic gear}
> >    matching slow pulse rate reflectivities with fast pulse rate
> range-folded
> >    velocity data using the Les Lemon 300 horse power fold-it-back
> algorithm?
> >    \end{cryptic gear}
>
> LOL!!!  The scanning radar will, when graphically displaying the results,
> measure a sine wave pattern.  The algorithm places a 'best fit' idealized
> sine wave and the result will be a sounding like, wind vector plot of the
> horizontal wind with height that applies to the wind across the radar
site.
>  This is called the VAD (velocity azimuth display) Wind Profile product in
> NEXRAD.
>
> > Do you have web-accessible seminar notes?
>
> I have a student guide which covers a portion of the material.  As far as
> web-accessibility is concerned, I will have to check on that.
>
> Radar Les....<S>
> ************************
> Leslie R. Lemon
> Radar, Severe Storms, & Research Meteorologist
> Tel. 816-373-3533, 816-213-3237
> E-Mail: lrlemon at compuserve.com
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>  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------------------------------
From: David Jones <D.Jones at bom.gov.au>
To: "Aussie Weather Digest (E-mail)" <aussie-weather-digest at world.std.com>
Subject: aus-wx: rainfall in Adelaide.
Date: Wed, 27 Sep 2000 08:38:46 +1000
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>Adelaide wins back reputation as the place to miss out on rain
Hate to say it Martin... but get used to it! We in Melbourne have had to 
endure an avoidance of precipitation for close to 3 years. The way to ease
the
pain is to lower the excitement benchmark by about half (ie a significant
fall becomes
5mm rather than 10mm etc.), and go into every "event" expecting nothing....

On a more serious note, it was interesting to see the precipitation turned
to snow in the Snowy Mts
yesterday afternoon despite the thickness values being near 554 - a more
usual cut-off is around 544 - ie the snow fell to levels ~1000m lower than
would be expected. 

As for bagging the BOM, when you consider that the Bureau had been downsized
by about 35% in recent times, and the demands placed on it by the WWW etc
have grown enormously, some of the recent criticism on this list is really
unwarranted. If it were not for the Bureau and like public-good
meteorological services, we would be still relying our local barometers for
making forecasts! With the possible exception of the USA, the openness and
service which we provide to the public is IMHO second to none, and something
which the list should endeavour to preserve, rather than criticise. 


Cheers,

David.
                                                              
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 -----------------------jacob at iinet.net.au------------------------------
From: David Jones <D.Jones at bom.gov.au>
To: "Aussie Weather Digest (E-mail)" <aussie-weather-digest at world.std.com>
Subject: aus-wx: Doppler radar..
Date: Wed, 27 Sep 2000 08:49:16 +1000
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>How long do you think it will be before Doppler radar is installed
Australia
>wide? Also is the BOM still gunner release the radar data free?
>
>David Findlay

The Bureau has been approved to provide low resolution PPI (ie "maps") radar
data
at 10 minute intervals, and in addition a loop of 3 most recent images free
of charge 
to the public. The time frame will depend on staffing.

I don't know the time-frame for Doppler radar. Of course, this is a public
good product - ie you are not going to make money from Doppler data, so the
phase-in depends entirely on the budget appropriated to the Bureau by
government. 

Cheers,

David.

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 -----------------------jacob at iinet.net.au------------------------------
From: " Max King" <mnk at dingoblue.net.au>
To: <aussie-weather at world.std.com>
Subject: Re: aus-wx: WEATHER: Torrential rain north of Mt Victoria NSW
Date: Wed, 27 Sep 2000 08:49:49 +1000
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Good morning group,

Some very close CG's here at Willoughby about 8am this morning (Wednesday)

Max


----- Original Message -----
From: Laurier Williams <wbc at ozemail.com.au>
To: <aussie-weather at world.std.com>
Sent: Wednesday, September 27, 2000 1:18 AM
Subject: aus-wx: WEATHER: Torrential rain north of Mt Victoria NSW


> Coming home from Sydney via Bells Line of Road this evening, I came
> through torrential rain for about 20km through Bell and almost into
> Mount Victoria around 9pm. The road was barely visible below the haze
> of splatting raindrops most of the time. Fog varied the visibility
> between 50 and 200m, diffusing the frequent and close lightning into
> blinding glare followed by coalmine black. As I was riding a
> motorbike, and not comfortably cocooned in a car, the storm got the
> adrenaline going more ways than one -- I'll dream I'm riding down a
> strobing white tunnel bounded by red and white reflectors tonight, cos
> that's all I could see for an exciting 20 minutes or so.
>
> Given that the radar shows storm movement as easterly at about 60km/h,
> and I was riding west then south, the duration/extent of the heavy
> rain was unusual. Unfortunately, there are no raingauges in the area,
> though Lithgow may have caught some of it.
>
> Thunder and light to moderate rain showers continue here at 1am.
>
>
> --
> Laurier Williams
> Australian Weather News & Links
> http://ausweather.simplenet.com
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>  -----------------------jacob at iinet.net.au------------------------------
>

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 -----------------------jacob at iinet.net.au------------------------------
X-Originating-IP: [203.134.67.3]
From: "Rune Peitersen" <runepeitersen at hotmail.com>
To: aussie-weather at world.std.com
Subject: aus-wx: My indepth t'storm analysis
Date: Wed, 27 Sep 2000 08:00:26 EST
X-OriginalArrivalTime: 26 Sep 2000 22:00:26.0376 (UTC) FILETIME=[2D259880:01C02805]
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<x-flowed>
8am Glenorie
     How's a person supposed to get some sleep around here?!.. I'll try to 
keep this brief, but i'm still so pumped after yesterday. Started at 230am 
when deep thunder shook my house and shook me out of bed! Close flashes to 
the SW and bolts visible in front of the mountains to the west. The thunder 
was deep and reverberating as it always seems to be in the early morning 
(lack of other noise?), after 2 hours sleep it was painful to keep my eyes 
open, but what the hell:).. Lightning and thunder continued till past 4am. 
5am forecast of chance thunderstorms during day. Worked 6am to 4pm in which 
there was nothing but light rain and drizzle. The 330pm forecast was a bit 
of a downer with just the chance of some rain o'night and the olympic one 
was even worse saying any showers will be 'very light'!!(hehehe) Reading the 
emails from this list was great with jimmy and the crew out chasing a 
monster at mudgee and the radar starting to encroach green bits towards the 
sydney basin  i knew we were back in business:) There was a lot of fog and 
low cloud around so it was hard to see any flashes. Sat still, eyes focused 
for what seemed an eternity to see the first flash. It was very still at 
this time and not long after the first deep rumbles could be heard thru the 
fog in the distance. Anticipation was thru the roof!. 820pm UPDATED 
forecast, chance tstorm in the west. der!  Went to the spot, it was very 
eerie, could not see bolts, only very bright flashes to the west and thunder 
that was growing louder and closer. Alex came up with the news of STW's. Had 
to go see what there Olympic storm bulletin was like. Unbelievable, under 
every venue, "yes, severe thunderstorms"!.. (but with only very light 
rain?!:))  Back outside, and no sooner a massive bright bolt just to the 
west and that moment of bliss between seeing it and hearing the CRACK. Then 
the heavy rain and wind. At one stage 3 bolts withing 100mts within a 
minute. Sat out and watched the lightning show till 2am where there was 
still the occasional cc in random areas and still heavy rain around. Went to 
sleep only to hear thunder at 6am, there was still green and yellow on radar 
at this time and there was further fairly close bolts around 7-730am.. Right 
now still moderate rain (27mm since storm 930pm last night) but clearing 
from the west. Has this been too long?!.. if so pile on the complaints!!... 
Now that theres a break in the weather i might head off to work,, and as i 
write the sun has come out!,,
                 A very sleep deprived but happy man, Rune :)))))))))
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

Share information about yourself, create your own public profile at 
http://profiles.msn.com.

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 -----------------------jacob at iinet.net.au------------------------------
</x-flowed>
From: "Ben Quinn" <benquinn at optushome.com.au>
To: <aussie-weather at world.std.com>
Subject: aus-wx: Real TV requesting video footage
Date: Wed, 27 Sep 2000 09:07:26 +1000
X-Mailer: Microsoft Outlook Express 5.50.4133.2400
Sender: aussie-weather-approval at world.std.com
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Hi Everyone,

I got this email last night and thought i'd pass it on to the list - if you
have what they're looking for, the email address to reply to is:

tackerly at realtv1.com



*begin email*


I am writing to you from an American television program called REAL TV,
a half-hour, daily video newsmagazine show that features compelling videos
from around the world.  We feature news events that capture amazing moments
on tape, extreme sports and weather, police chases, incredible rescues and
unusual events.  We license footage worldwide, all broadcast media for a

period of ten years.  REAL TV has bureaus in Europe, South America and
Asia.

I was wondering if you might have any storm chasing footage we would be
interested in.  The types of footage we would include tornados, amazing
lightning storms, hurricanes, etc. What we are looking for is
unbelievable video, things that you can't believe happened.  If you have
any demo-tapes you could send us that would be great.  REAL TV does pay
for footage that we use and we could better estimate a price after we
see what you have to offer.  If you have anything or know of anyone who
does please feel free to contact me.

REAL TV, which is distributed by Paramount Domestic Television, has just

entered its fifth season.  We purchase videos from broadcasters,
individual cameramen, rescue services, who have cameras and anyone who
captures
something interesting on video.  If you are interested I can discuss
what our licensing rates are with you as well as what we can offer you for
your
services.  I look forward to your response.

Regards,

Tracy Ackerly
Researcher
Toll free# 888-732-5882  x8063
323-860-8063
323-860-0101  (fax)

REAL TV
1040 N. Las Palmas, Stage 2
Hollywood, CA  90038





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 -----------------------jacob at iinet.net.au------------------------------
From: "Ben Quinn" <benquinn at optushome.com.au>
To: <aussie-weather at world.std.com>
Subject: aus-wx: Chasing
Date: Wed, 27 Sep 2000 10:40:13 +1000
X-Mailer: Microsoft Outlook Express 5.50.4133.2400
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Reply-To: aussie-weather at world.std.com

Hi Everyone,

Jason Rainforest and myself will be chasing in NE NSW today - hopefully
there's a repeat of yesterdays activyt!  Radar updates would be greatly
appreciated on

0402026582

Thanks in advance


Ben Quinn

The Brisbane Storm Chasers Homepage
http://www.bsch.simplenet.com
The Australian Weather Pages Webring
http://www.bsch.simplenet.com/webring/index.htm
NEMAS (North East Media of Atmospheric Science) Weather Education
http://www.nemas.net/edu/


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 -----------------------jacob at iinet.net.au------------------------------
Date: Tue, 01 Jan 1980 22:23:43 -0800
From: Lindsay Pearce <writer at lisp.com.au>
X-Mailer: Mozilla 4.05 [en] (Win16; I)
To: aussie-weather at world.std.com
Subject: aus-wx: WEATHER: Big storm last night.
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Blackheath: (Written off-line at 11:20am Wednesday)

Hi all,


Yes, nice lightning show here in Blackheath at a similar time to
Laurier's experience.
Although the storm didn't really hit Blackheath as it did in other
places. 

We also had some moderate rainfall this morning, albeit a brief fall at
that at around 6:30am for half an hour or more. Currently, its mild and
quite sunny with some scattered cumulus and a moderate westerly.

On another note, the fog/low cloud in Katooomba yesterday afternoon was
very thick, some of the thickest I've seen for a while. Visibility was
down to maybe ten metres or so, it was very tough to drive in.
Blackheath on the other hand wasn't too bad at the same time, although
still foggy.

Sounds like you had a pretty exciting experience Laurier, lucky you, I
think. 


Lindsay Pearce


Laurier Williams wrote:
> 
> Coming home from Sydney via Bells Line of Road this evening, I came
> through torrential rain for about 20km through Bell and almost into
> Mount Victoria around 9pm. The road was barely visible below the haze
> of splatting raindrops most of the time. Fog varied the visibility
> between 50 and 200m, diffusing the frequent and close lightning into
> blinding glare followed by coalmine black. As I was riding a
> motorbike, and not comfortably cocooned in a car, the storm got the
> adrenaline going more ways than one -- I'll dream I'm riding down a
> strobing white tunnel bounded by red and white reflectors tonight, cos
> that's all I could see for an exciting 20 minutes or so.
> 
Snip...

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 -----------------------jacob at iinet.net.au------------------------------
From: "clyve herbert" <mesof5 at iprimus.com.au>
To: <aussie-weather at world.std.com>
Subject: Re: aus-wx: WEATHER: Interesting Radar
Date: Wed, 27 Sep 2000 13:45:57 +1000
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Hi all.
When using two or more Doppler radar units in a field experiment, is there
any contamination of the echo signal received back by individual units, is
possible then for each unit to be programmed to receive only its own sent
signal or can each sending unit be encoded with a type of message for self
recognition or if there is any contamination by other Doppler units to be
able differentiate from its own signal and other units or is it possible for
a single unit to process a foreign signal.
regards Clyve Herbert.
---- Original Message -----
From: Harald Richter <hrichter at enterprise.nssl.noaa.gov>
To: Australian Severe Weather Association <aussie-weather at world.std.com>
Sent: Wednesday, September 27, 2000 4:34 AM
Subject: RE: aus-wx: WEATHER: Interesting Radar


>
> Hi Les,
>
> I believe this discussion is of interest to the list, hence I air
> my "musings" on line.
>
> Radar Les wrote:
>
> > ... <small snip> ... Note the radar, when measuring velocity, a scaler
> > quantity, is measuring only the component of the wind that is parallel
to
> > the radar viewing angle.  In other words, the component parallel to the
> > radar beam at any given moment and location.  Of course, the component
> > changes with the changing viewing angle of the radar.  In order to
derive
> > the wind from single Doppler velocities, you need other sources of
> > information such as independent surface wind measurements scattered
about
> > it the radar sampling area, a second Doppler radar viewing at right
angles
> > to the first (which can only be done in certain limited areas), or some
> > other source.
>
> In the absence of any aliasing concerns, isn't the PRINCIPAL process of
> radar velocity estimations a fairly simple one?  For a given tilting
> angle of the radar beam a Doppler radar can estimate the along-beam
> component (or projection) of the full three-dimensional velocity vector
> within the cone-shaped surface swept out by the beam as the radar does
> a 360 sweep.  A second Doppler radar (located at some distance from the
first radar)
> could provide an estimate of the same three-dimensional velocity vector in
the
> form of a projection along *its* beam within its cone-shaped surface (I
know,
> a picture would help here).  At (and near) those points where the two
cones
> intersect we have an estimate of the true velocity vector in the form of
its two
> along-beam projections.  Near these points we should be able to have
> fairly decent horizontal wind estimates.  All these musings are
> strictly GEOMETRICAL,  ignoring all issues involving radar-specific
> concerns such as signal quality, aliasing and so forth.  Les, does
> this picture work for you?
>
>
> > ...<more snip>... If there is sufficient echo encircling the
> > radar, you can derive the wind via use of an algorithm.  (Is all this
very
> > confusing!!??  <S>)
>
> Yep :)  Something tells me that this sentence is awfully deep.  Does it
> involve
>    \begin{cryptic gear}
>    matching slow pulse rate reflectivities with fast pulse rate
range-folded
>    velocity data using the Les Lemon 300 horse power fold-it-back
algorithm?
>    \end{cryptic gear}
> Back to reality... :)
>
> > This is a very intense seminar, somewhat like trying to take a
> > drink from a fire hose...
>
> Do you have web-accessible seminar notes?
>
> Cheers,  Radarald
>
>
> --
> -------------------------------------------
> Harald Richter
> NOAA/National Severe Storms Laboratory
> 1313 Halley Circle
> Norman, OK 73069, U.S.A.
> ph.:    (405) 366-0430
> fax:    (405) 579-0808
> email:  hrichter at enterprise.nssl.noaa.gov
> web:    http://www.nssl.noaa.gov/~hrichter
> -------------------------------------------
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>  -----------------------jacob at iinet.net.au------------------------------

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 -----------------------jacob at iinet.net.au------------------------------
From: "Jane ONeill" <cadence at stormchasers.au.com>
To: "Aussie Weather" <aussie-weather at world.std.com>
Subject: aus-wx: OFFTOPIC: Server problems
Date: Wed, 27 Sep 2000 14:02:42 +1000
X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0)
Importance: Normal
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Afternoon all,

MSC (stormchasers.au.com) is up and running as usual but I can't get in to
update it, so for the next day or so, updates to the following pages will be
found on the 'old' site as per these URLs.

What's New on the MSC site
http://www.rubix.net.au/~cadence/wotznu.htm

MSC's Weather Cafe
http://www.rubix.net.au/~cadence/forecasting.htm

September Forecast Outlook, Discussion & Report Page
http://www.rubix.net.au/~cadence/sept2000.htm

I'll let you know when stormchasers.au.com is updating again.

Jane
---------------------------------------
Jane ONeill - Melbourne
cadence at stormchasers.au.com

Melbourne Storm Chasers
http://www.stormchasers.au.com

ASWA - Victoria
http://www.severeweather.asn.au
---------------------------------------

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 -----------------------jacob at iinet.net.au------------------------------
From: "John Graham" <gorzzzz at dingoblue.net.au>
To: "Aussie Weather" <aussie-weather at world.std.com>
Subject: aus-wx: NSW STA
Date: Wed, 27 Sep 2000 16:05:12 +1000
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TOP PRIORITY FOR IMMEDIATE BROADCAST

SEVERE THUNDERSTORM ADVICE
BUREAU OF METEOROLOGY
NEW SOUTH WALES REGIONAL OFFICE
Issued at 1425 on Wednesday the 27th of September 2000

This advice affects people in the following weather districts:

Northern Rivers
Mid North Coast north of Nambucca Heads

Thunderstorms are forecast within the advice area this afternoon. Some of
these are expected to be severe bringing large hailstones, destructive
winds and very heavy rainfall.

The STATE EMERGENCY SERVICE advises that as storms approach people should:
  * put vehicles under cover
  * move indoors away from windows

During and after the storm people should:
  * beware of fallen trees and power lines
  * keep away from creeks and drains as you may be swept away

The RTA recommends motorists switch their lights & wipers on & slow down in
the wet.

If your house is damaged contact your local SES unit, listed under "S" in
the white pages, for emergency assistance. Don't use the telephone during
storms.

TV CRAWL: Severe Thunderstorm Advice current for the Northern Rivers and
parts of the Mid North Coast districts.

____________________________________________________________________________
_____________
John Graham gorzzzz at dingoblue.net.au or gorzzz at yahoo.com
ICQ# 25440353
Member of the Australian Severe Weather Assoc.
http://www.severeweather.asn.au/
Snail Mail
PO Box 1072 Ballina 2478  NSW Australia

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 -----------------------jacob at iinet.net.au------------------------------
From: davidkc at advanceenergy.com.au
Subject: aus-wx: BOM Warning - Nambucca Heads
To: aussie-weather at world.std.com
Date: Wed, 27 Sep 2000 16:21:15 +1100
X-MIMETrack: Serialize by Router on Domino/Advance(Release 5.0.4 |June 8, 2000) at 27/09/2000
 04:21:16
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

HI all..

TOP PRIORITY FOR IMMEDIATE BROADCAST

SEVERE THUNDERSTORM ADVICE
BUREAU OF METEOROLOGY
NEW SOUTH WALES REGIONAL OFFICE
Issued at 1425 on Wednesday the 27th of September 2000

This advice affects people in the following weather districts:

Northern Rivers
Mid North Coast north of Nambucca Heads

Thunderstorms are forecast within the advice area this afternoon. Some of
these are expected to be severe bringing large hailstones, destructive
winds and very heavy rainfall.

The STATE EMERGENCY SERVICE advises that as storms approach people should:
  * put vehicles under cover
  * move indoors away from windows

During and after the storm people should:
  * beware of fallen trees and power lines
  * keep away from creeks and drains as you may be swept away

The RTA recommends motorists switch their lights & wipers on & slow down in
the wet.

If your house is damaged contact your local SES unit, listed under "S" in
the white pages, for emergency assistance. Don't use the telephone during
storms.

TV CRAWL: Severe Thunderstorm Advice current for the Northern Rivers and
parts of the Mid North Coast districts.

NOT FOR BROADCAST: This Advice message is valid until 6pm. The Bureau and
SES would appreciate it being broadcast regularly until this time.

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 -----------------------jacob at iinet.net.au------------------------------
From: "Ben Tichborne" <tich at netaccess.co.nz>
To: <aussie-weather-digest at world.std.com>
Subject: aus-wx: Savage North Island storm
Date: Wed, 27 Sep 2000 17:40:06 +1200
Organization: Private
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----- Original Message -----
From: "Ben Tichborne" <tich at netaccess.co.nz>
To: <aussie-weather-digest at world.std.com>
Sent: Tuesday, September 26, 2000 10:13 PM
Subject: Savage North Island storm


A cold southerly outbreak moving up over the South Island over the last few
> days (bringing snow down to about 300 metres, plus scattered thunder)
> reached the lower North Island on Monday, and banged into a moisture
bearing
> low moving in from the west.
>
>  The results for the North Island: 1. Southerly gales over much of the
> island, severe in many places, with trees down etc. 2. Heavy snow in the
> high country (down low - to at least  400 metres in some southern and
> eastern parts), closing many roads. 3. Heavy rain in the lower parts of
the
> east coast. 4. Heavy frosts - forecast for tonight in many areas, now that
> southerly storm is moving offshore. Fine now in Christchurch, and looking
> highly likely there'll be a significant frost.
>
> Ben
> Christchurch
> NZ

A stuff-up in the emailing system has delayed this message, but hopefully
here it is.

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 -----------------------jacob at iinet.net.au------------------------------
From: "David Findlay" <nedz at bigpond.com>
To: <aussie-weather at world.std.com>
Subject: aus-wx: Storm West of Brisbane
Date: Wed, 27 Sep 2000 15:55:25 +1000
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Looks like there are a few cells building around the west of Brisbane. Just
heard a few rumbles and lightning tracker confirms this. Also radar has some
yellow stuff. Any chance of severe weather?

David

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 -----------------------jacob at iinet.net.au------------------------------
From: "James Chambers" <jamestorm at ozemail.com.au>
To: <aussie-weather at world.std.com>
Subject: Re: aus-wx: Storm West of Brisbane
Date: Wed, 27 Sep 2000 16:10:36 +1000
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Hi David, all

I don't think there'll be any severe weather with these cells near Brisbane,
but I'm still hoping!  There is better stuff towards Beaudesert but its very
"pulsy" - ie. fluctuating between pretty good intensities and weak
intensities.  I'm hoping for a lightshow tonight, preferably when I'm not at
work!

The best action today has been over NE NSW where a lot of small hail I
believe has been reported.

Regards
James Chambers
Brisbane/Logan

>Looks like there are a few cells building around the west of Brisbane. Just
>heard a few rumbles and lightning tracker confirms this. Also radar has
some
>yellow stuff. Any chance of severe weather?
>
>David


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 -----------------------jacob at iinet.net.au------------------------------
From: "David Findlay" <nedz at bigpond.com>
To: <aussie-weather at world.std.com>
Subject: RE: aus-wx: Storm West of Brisbane
Date: Wed, 27 Sep 2000 16:20:27 +1000
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>I don't think there'll be any severe weather with these cells near
Brisbane,
>but I'm still hoping!  There is better stuff towards Beaudesert but its
very
>"pulsy" - ie. fluctuating between pretty good intensities and weak
>intensities.  I'm hoping for a lightshow tonight, preferably when I'm not
at
>work!

I just had a look at the latest local scale image and it is showing a pink
section, Also I can see the cell from here and it is looking quite strong. A
bit of rotation as well, i think.

David Findlay

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 -----------------------jacob at iinet.net.au------------------------------
From: "David Findlay" <nedz at bigpond.com>
To: <aussie-weather at world.std.com>
Subject: RE: aus-wx: Storm West of Brisbane
Date: Wed, 27 Sep 2000 16:26:52 +1000
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I can now see some mamatus and virga, and a small anvil cloud. Also the wind
is a quite strong inflow, with lots of turbulence. Does this mean anything?

David

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 -----------------------jacob at iinet.net.au------------------------------
From: "Craig Williams" <craigis at bigpond.net.au>
To: <aussie-weather at world.std.com>
Subject: Re: aus-wx: Storm West of Brisbane
Date: Wed, 27 Sep 2000 16:40:14 +1000
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I also have a good view of the cell and it does look quite good from the
north, haven't noticed anyy rotation though. Dammit...it only needed to be a
few clicks closer to make my day!  :-)

Cheers...Craig Williams

<snip>
>I just had a look at the latest local scale image and it is showing a pink
>section, Also I can see the cell from here and it is looking quite strong.
A
>bit of rotation as well, i think.



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 -----------------------jacob at iinet.net.au------------------------------
From: "Michael Thompson" <michaelt at ozemail.com.au>
To: <aussie-weather at world.std.com>
Subject: aus-wx: That first organised group chase in Sep 1998
Date: Wed, 27 Sep 2000 18:06:39 +1000
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Its days like the past few that I cannot help thinking how unlucky Jimmy,
Paul Yole, Paul Graham an myself were on the first week of that chase tour.
We had the deathridge from hell kick in. The chase started on the 26th
September 1998, and we all know what yesterday ( 26th Sep 2000 ) was like,
and they were storms today. But there were storms last year same period too.

Oh well, I am sure Jimmy got some back from Huey last night.



Michael Thompson
http://thunder.simplenet.com




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 -----------------------jacob at iinet.net.au------------------------------
From: "David Findlay" <nedz at bigpond.com>
To: <aussie-weather at world.std.com>
Subject: RE: aus-wx: Storm West of Brisbane
Date: Wed, 27 Sep 2000 17:01:19 +1000
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>I can now see some mamatus and virga, and a small anvil cloud. Also the
wind
>is a quite strong inflow, with lots of turbulence. Does this mean anything?

Ignore this. It has totally fizzed out now.

David

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 -----------------------jacob at iinet.net.au------------------------------
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Date: Wed, 27 Sep 2000 17:04:42 +0930
To: aussie-weather at world.std.com, aussie-weather at world.std.com
From: Andrew Wall <astroman at chariot.net.au>
Subject: aus-wx: Storms near Waikerie (SA) 26th Sept, 2000
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<x-flowed>
Hi all,

After some umming and ahhing, I decided to head out towards Waikerie in the 
Riverland area, near SA/NSW Border. Radar showed some activity in the 
region,  unfortunately the road system towards the north were a bit dodgy 
so I decided to stay south of the Stuart Hwy, where there were plenty of 
roads around.

The main problem was I had a mobile phone with a dead battery. but after 
chatting to Chris G (vic) I had sort of planned for the Waikerie/Loxton 
area. I stuck with my plan and getting closer to the area, I spotted a few 
nice looking cells and some congestus. Still driving on I thought I saw a 
flash but was not 100% sure, so I kept going, watching the sky at the same 
time. By this time it was completely black around me except for the on 
coming head lights of a few semi-trailers. I was on a straight part of the 
road when the sky lit up, it was unbelievable, the cell was right in front 
of me about 10-20km up the road. I had a clear view of the top of the cloud 
which looked like a dome topped Cb. The lightning was increasing so I 
stopped on the side of the road and got a few shots of the view.

I decided to go and see if I could see the bottom strikes, so back in the 
car, driving further towards the cell. Quite a few strikes came from it and 
some of them came from the side of the storm and extended away from the 
storm for a few KM's, I decided then to keep a safe distance. Finding a 
side road which was partly flooded, I drove down the road a little way 
finding a clear spot. Stopped the car, jumped out got all the camera gear 
set up and enjoyed the light show, which lasted for about an hour or so. 
While I was shooting a truck had pulled onto the road and stopped right 
infront of me, I wasn't sure what he was doing but I missed a very nice 
bolt because of it :(. I noticed the storm was moving away so I jumped back 
into the car and went down the road further, but the storm was moving to 
far away and I could not chase it anymore. The lightning dropped to around 
1 per minute then 1 every 5 minutes, so I decided to call it a night and 
head back home.

By the looks of it I may have caught the last of the storms, from the 
trough that lasted for almost a week in SA. I had to get at least one storm.

That was my Weekday chase, and the first time I had actually chased a storm 
on flat ground, I was very impressed.

I am getting the pictures developed tomorrow so will write another email 
once they are added onto the web.

Andrew Wall

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From: "Peter Matters" <pmatters at eck.net.au>
To: <aussie-weather at world.std.com>
Subject: aus-wx: Welcome Sky
Date: Wed, 27 Sep 2000 18:20:52 +1000
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Hi All,
       Had 47mm rain in 48 hrs here at Broadford. At 1900, ths temp was
17.4, RH is 65%.  On the way home from I noticed cloud building from a base
at 2k-3kft to at least 8k. Moisture could be smelt in the air, so things
looking good!
Peter Matters
Broadford

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 -----------------------jacob at iinet.net.au------------------------------
Date: Wed, 27 Sep 2000 19:37:02 +1000
From: Keith Barnett <weather at ozemail.com.au>
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Subject: Re: aus-wx: OFFTOPIC: Weather and Accountants.
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I have also found aswa to be the Astronomical Society of Western
Australia..a bit closer to our interest than accountancy....
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From: "Duncan & Mandy" <duncman at asiaonline.net.au>
To: <aussie-weather at world.std.com>
Subject: aus-wx: rainfall in Adelaide.
Date: Wed, 27 Sep 2000 18:11:18 +0930
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<x-html>
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<BODY bgColor=#ffffff>
<DIV><FONT size=2>I learnt a long time ago while living in Adelaide not to get 
too excited about any approaching weather. Whatever comes is what you get. 
Warming up here in Alice Springs - 36C and quite dusty. Not sure what has caused 
the dust, as there hasn't been much wind. The dust has given the sky a pale 
light blue look&nbsp; - like the skies of an American mid western 
summer.</FONT></DIV>
<DIV><FONT size=2>duncan.&nbsp;</FONT></DIV></BODY></HTML>

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Date: Wed, 27 Sep 2000 20:16:27 +1000
To: aussie-weather at world.std.com
From: Michael Bath <mbath at ozemail.com.au>
Subject: aus-wx: NE NSW CHASES: storms and lightning
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<x-flowed>

Tuesday 26th September.
This was a frustrating day, but a great night!. High expectations of storms 
but no clouds were visible at all until late in the afternoon, and even 
then only some high cloud from storm remnants. Grafton local radar showed 
storms had developed W of Coffs Harbour by mid afternoon, but they barely 
moved. Later on and now into the evening, distant lightning was apparent to 
the far south. After some prodding from the anxious SE QLD'ers I ventured 
out with the camera gear to the southern side of the Alstonville plateau I 
live on to set up. Cells had propagated northwards to be from NW of Grafton 
to the coast, but this was still about 80ks S of me. There was plenty of 
lightning but a layer of mid level cloud between me and the storms meant I 
could also see the glow at the top of the cells, and the CGs coming out the 
bottom. Activity intensified as a larger storm crossed the coast near Yamba 
about 9pm. Radar shows this veered markedly to the N to track parallel to 
the coast, it also picked up speed. I drove back home hoping the lightning 
would pass E of my place (over the ocean) and give me a good show. It was 
after 11pm before the activity got close enough to set the camera up again. 
In fact another cell had formed NW of the main one over land NNW of 
Ballina, and about 10ks E of me. It was just going berserk ! CGs were every 
few seconds and in full view. Finally a chance to get some lightning pics - 
the first I have taken in 2000. The show went on for an hour before fading 
away. I was happy after that !!

Wednesday 27th September
The sky had a good feel to it during the morning, with a lovely moisture 
haze, light to moderate N winds, and forecasted LI and CAPE of -5 and 
~1000. A few tiny altocumulus clouds were observed during late morning, 
otherwise it was clear until the early afternoon. From about 1pm congestus 
rapidly formed to the W. I headed out to get a better look. It started to 
dominate in the SW sky by about 1.45pm with a large storm system 
developing, but heading ESE further away from my location. A rapid rock 
solid updraft punched up NW of the first storm and quickly glaciated. It 
would have reached at least 13-14km in height. All of this activity slowly 
edged towards the coast near Yamba. Halden Boyd reported that a hail drift 
occurred at Palmers Island (W of Yamba), consisting of 5 cent piece sized 
hailstones. After about 3.30pm conditions were less favourable with just 
congestus popping up around the district with some thundery showers passing 
over Evans Head later. Anthony C dropped by after a long chase and Ben and 
Jason came down to Ballina, but unfortunately for them, the best activity 
passed out by mid afternoon before they arrived.

I'll have photos shortly.

regards, Michael
  =============================================================
  Michael Bath      mailto:mbath at ozemail.com.au
  McLeans Ridges    http://australiasevereweather.com/
  NE NSW Australia  http://www.lightningphotography.com/
  ASWA Secretary    http://www.severeweather.asn.au/
  =============================================================

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From: "bussie" <bussie at netc.net.au>
To: "weather list" <aussie-weather at world.std.com>
Subject: aus-wx: Awesome display
Date: Wed, 27 Sep 2000 21:36:15 +1000
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Just had an awesome light and sound display here from mother nature. Lots of
very close CG's and 12mm of rain over about an hour. Still raining steadily
now. Looked to be three separate storms as they approached, one to the
North, one to the west (the one that passed over here) and another to the
SW. Still a few erratic CG's to the SW.

Bussy (NE Victoria)


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 -----------------------jacob at iinet.net.au------------------------------
From: "clyve herbert" <mesof5 at iprimus.com.au>
To: <aussie-weather at world.std.com>
Subject: Re: aus-wx: Awesome display
Date: Wed, 27 Sep 2000 21:48:57 +1000
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Hi Bussie.
Please send us some lightning down south! which way were the frogs jumping!
regards Clyve H.
----- Original Message -----
From: bussie <bussie at netc.net.au>
To: weather list <aussie-weather at world.std.com>
Sent: Wednesday, September 27, 2000 9:36 PM
Subject: aus-wx: Awesome display


> Just had an awesome light and sound display here from mother nature. Lots
of
> very close CG's and 12mm of rain over about an hour. Still raining
steadily
> now. Looked to be three separate storms as they approached, one to the
> North, one to the west (the one that passed over here) and another to the
> SW. Still a few erratic CG's to the SW.
>
> Bussy (NE Victoria)
>
>
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>  -----------------------jacob at iinet.net.au------------------------------

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 -----------------------jacob at iinet.net.au------------------------------
From: "Debbie Parker" <debp at rie.net.au>
To: <aussie-weather at world.std.com>
Subject: aus-wx: New webcam for the bay
Date: Wed, 27 Sep 2000 22:02:48 +1000
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<x-html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type><BASE 
href="file://C:\Program Files\Common Files\Microsoft Shared\Stationery\">
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<META content="MSHTML 5.00.2722.2800" name=GENERATOR></HEAD>
<BODY background="">
<DIV>Hi Everyone,</DIV>
<DIV>A new web camera has been set up at Sandringham Yacht Club, Melbourne this 
week.</DIV>
<DIV>&nbsp;</DIV>
<DIV>It can be seen at</DIV>
<DIV>&nbsp;</DIV>
<DIV><A href="http://www.syc.com.au/">http://www.syc.com.au/</A></DIV>
<DIV>&nbsp;</DIV>
<DIV>Just follow the syc baycam link. The image is refreshed every 30 
seconds.</DIV>
<DIV>Not much to look at now - just wait until tomorrow.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Another way to keep an eye on the bay. You might find a lot of boats in the 
way on Wednesday and Saturday afternoons, Sunday mornings and Thursday evenings 
- sorry about that!</DIV>
<DIV>&nbsp;</DIV>
<DIV>Cheers</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>Debbie</DIV>
<DIV>&nbsp;</DIV>
<DIV>( Boronia, Melbourne )</DIV></BODY></HTML>

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From: "bussie" <bussie at netc.net.au>
To: <aussie-weather at world.std.com>
Subject: Re: aus-wx: Awesome display
Date: Wed, 27 Sep 2000 22:13:20 +1000
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> Hi Bussie.
> Please send us some lightning down south! which way were the frogs
jumping!
> regards Clyve H.

The funny thing about that was that when I came back inside there was a frog
hopping around on the back lawn. And that's fair dinkum.
BTW he was heading east, and on closer inspection had gumboots on..... :-)
Still raining steadily here at present.

Bussy

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Date: Wed, 27 Sep 2000 23:25:03 +1000
To: aussie-weather at world.std.com
From: Jimmy Deguara <jdeguara at ihug.com.au>
Subject: aus-wx: More NSW storms
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<x-flowed>
Hi all,

I have come back home a second time but it seems NSW os going off again : 
time 11:05pm. There is an outbreak of activity in the SW Slopes region. If 
you look closely at radar (I am too tired to upload it), it has a squall 
line followed by a possible supercell - similar to what occurred in Sydney 
in October 28th1995. Take a look at the radar in the report we wrote for 
that day:

http://australiasevereweather.com/storm_news/1998/docs/9803-02.htm

ok  I did upload it  - so go here:

http://www.australiasevereweather.com/temp/200009271100/200009271100.gif

What do people think about that?

Now tomorrow looks interesting. There is great windshear abd hopefully 
moisture won't be a problem. I think whatever breaks the cap will explode. 
At this stage the target area is around the Southern Tablelands but we 
shall see in the morning as the models are jumping around. The satellite 
picture in the morning and the water vapour imagery will indicate any 
trough lines.

Hope we see an outbreak....

Jimmy Deguara

-----------------------------------------
Jimmy Deguara
Storm Chaser and Mathematics Teacher

from
Schofields, Sydney
NSW Australia

e-mail:jdeguara at ihug.com.au

Web Page with Michael Bath

Australian Severe Weather Home Page
http://www.australiasevereweather.com

President of the Australian Severe Weather Association
http://www.severeweather.asn.au

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