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Storm News
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Australian Weather Mailing List Archives: Monday, 24 January 2000 |
From Subject
--------------------------------------------------------------------------------------
001 Ben Quinn [bodie at flatrate.net.au] Pictures for 22-01-2000
002 Les Crossan [les.crossan at virgin.net] Melbourne Showers
003 Andrew Wall [astroman at chariot.net.au] Fwd: Information about lightning protection
004 Les Crossan [les.crossan at virgin.net] Fwd: Information about lightning protection
005 Lindsay [writer at lisp.com.au] Cool Morning in Blackheath
006 "Dr David Jones" [d.jones at bom.gov.au] first snow chase of 2000?
007 "Dane Newman" [dpn at bigpond.com] Chilly Morning In Melbourne
008 Lyle Pakula [LyleP at oakton.com.au] Chilly Morning In Melbourne
009 Miguel de Salas [mm_de at postoffice.utas.edu.au Chilly Morning In Melbourne
010 "John Woodbridge" [jrw at pixelcom.net] First & Last blast of Summer??
011 Lyle Pakula [LyleP at oakton.com.au] RE: Where To Get LI and CAPE
012 Blair Trewin [blair at met.Unimelb.EDU.AU] An interesting weekend!
013 "Pearce" [r_pearce at Dingoblue.net.au] RE: Where To Get LI and CAPE
014 "David Croan" [wxbustchase at hotmail.com] NHQ article on 14/4/99 Supercell
015 Ben Quinn [bodie at flatrate.net.au] RE: Where To Get LI and CAPE
016 Ben Quinn [bodie at flatrate.net.au] 22 dead, 100's hospitalised (was: An interesting weekend!)
017 Jacob [jacob at iinet.net.au] An interesting weekend!
018 Carl Smith [carls at ace-net.com.au] TC JO
019 Phil Bagust [paisley at cobweb.com.au] Adelaide rain
020 Blair Trewin [blair at met.Unimelb.EDU.AU] Possible Australian January record low
021 "Michael Thompson" [michaelt at ozemail.com.au] NHQ article on 14/4/99 Supercell
022 "Michael Thompson" [michaelt at ozemail.com.au] An interesting weekend!
--------------------------------------------------------------------------------------
001
Date: Sun, 23 Jan 2000 23:21:45 +1100
From: Ben Quinn [bodie at flatrate.net.au]
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To: aussie-weather at world.std.com
Subject: aus-wx: Pictures for 22-01-2000
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Everyone,
I have added all the pictures i took on January 22 to BSCH - over 50 of
them..
http://www.bsch.simplenet.com/products/recentevents.htm
Click on the January 22 report - i will write up a full chase report in
the next few days as well.. i was in a rush putting those pictures up,
so please let me know if there are any dead links!
I also uploaded a picture which i forgot to grab off the cam from
January 21 - not a bad sunset Cb..
http://www.bsch.simplenet.com/pictures/ben/temp/image12.jpg
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-----------------------jacob at iinet.net.au------------------------------
002
Date: Sun, 23 Jan 2000 16:47:18 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Cosmic EuroCon - note all times in GMT
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To: aus-wx [aussie-weather at world.std.com]
Subject: aus-wx: Melbourne Showers
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
list,
Another prong spotted from Melbourne stormcam yesterday, got Jane outa
bed pronto..... (:
Radar showing single cells in clumps and lines - apparently it's
coooold....
Anyone get anything????
Les
------------------------------------------------------
Les Crossan
Wallsend, Tyne & Wear, UK 54-59N 01-30W
UK Storm Chaser / Severe Weather Enthusiast
Melbourne Storm Chasers (MSC) - Victoria, AUS
http://www.rubix.net.au/~cadence/
Australian Severe Weather Association (ASWA) - AUS
http://www.severeweather.asn.au/
Tornado and Storm Research Organisation (TORRO) - UK
Thunderstorm Census Organisation (TCO) - UK
http://www.torro.org.uk/
Email: les.NOSPAMcrossan at virgin.net (remove NOSPAM)
ICQ: 17296776
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003
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Date: Mon, 24 Jan 2000 05:55:21 +1030
To: aussie-weather at world.std.com
From: Andrew Wall [astroman at chariot.net.au]
Subject: aus-wx: Fwd: Information about lightning protection
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
>Hi,
>I received the below request, but unfortunately it is way above my head,
>does anyone know what this means?
>
>>I'm student of electrical engineering in
>>ITENAS-Indonesia.Now,I'm finishing my report about
>>overvoltage cause of lightning on overhead lines of
>>medium voltage 20kV.To calculate overvoltage ,I use
>>the information from LPATS for charaterictic lightning
>>probabilty 50% in tropical country of peak current is
>>40 kA, and steepness lightning is di/dt 30 kA/micro s.
>>I would like to compare with the probability 50% in
>>sub tropical country (Europe), so do you mind to give
>>me the impormation of lightning parameter in sub
>>tropical contry?
>>thank's verry much for your attention...
>>__________________________________________________
>>Do You Yahoo!?
>>Talk to your friends online with Yahoo! Messenger.
>>http://im.yahoo.com
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004
Date: Sun, 23 Jan 2000 20:32:06 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Cosmic EuroCon - note all times in GMT
X-Mailer: Mozilla 4.5 [en] (Win98; U)
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To: aussie-weather at world.std.com, Andrew Wall [astroman at chariot.net.au]
Subject: Re: aus-wx: Fwd: Information about lightning protection
Sender: aussie-weather-approval at world.std.com
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Andrew Wall wrote:
>Hi,
>I received the below request, but unfortunately it is way above my
head,
>does anyone know what this means?
I know something about electricity, I'll explain some of it...
>>I'm student of electrical engineering in
>>ITENAS-Indonesia.
That's near Australia... (:
Now,I'm finishing my report about
>>overvoltage cause of lightning on overhead lines of
>>medium voltage 20kV.
Thats a fairly low voltage overhead line, what lightning does is
(i) a direct strike will induce an overvoltage surge which may overwhelm
the insulators causing them to flash over or blow up anyhow afterwards
they don't insulate any more
(ii) a near strike may or may not induce an overvoltage surge
To calculate overvoltage ,I use
>>the information from LPATS for charaterictic lightning
This is a standard lightning model used by overhead line engineers
>>probabilty 50% in tropical country of peak current is
>>40 kA,
Surge = 40000 Amps in the middle of a normal distribution, average
current.
and steepness lightning is di/dt 30 kA/micro s.
That means that after 1 micro second the CHANGE of current is 30000
amps!
>>I would like to compare with the probability 50% in
>>sub tropical country (Europe), so do you mind to give
>>me the impormation of lightning parameter in sub
>>tropical contry?
The proportion of CG strikes in subtropical ( Yeah!!! = Temperate)
Europe is much higher than in tropical countries due to the lower tropopause
and condensation level, don't know the exact figure....
http://www.torro.org.uk will give him a few email addresses to ask...
Point him to Professor Derek Elsom. He'll answer his query,
>>thank's verry much for your attention...
_________________________________________________
>>Do You Yahoo!?
No I don't I prefer Virgins... <G>
*******************
For more on this and some brilliant CG photographs as well try:
Look for a pic called "The Hit" in Lightning Activated Camera Systems
this is what lightning does to powerlines!
Les (UK)
005
Date: Mon, 24 Jan 2000 06:08:54 -0800
From: Lindsay [writer at lisp.com.au]
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Subject: aus-wx: Cool Morning in Blackheath
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24/1/00
Around 6 degrees and overcast in Blackheath this morning,thats pretty
cool for this time of the year. Doesn't exactly feel like winter, (Bare
feet in the morning, still) but not that warm either.
Lindsay P.
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006
From: "Dr David Jones" [d.jones at bom.gov.au]
To: "Aussie Weather (E-mail)" [aussie-weather at world.std.com]
Subject: aus-wx: first snow chase of 2000?
Date: Mon, 24 Jan 2000 08:48:13 +1000
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Just a short email to claim the first successful snow chase of 2000(?).
After waking to a temp of 9.9C on Sunday morning at Box Hill with 10mm
showery (winter type - some hail) precip, made an early morning dash to Lake
Mt (various peaks 1400-1500m).
Unfortunately no snow lying (more due to lack of precipitation than
temperatures), but
did observe two brief snow showers). For the doubters, the observations of
snow were independently verified by Gary Weymouth (also of BOM).
Cheers,
DAJ.
________
Dr David Jones ( ___)
( )
Climate Analysis Section () )
National Climate Centre ( ) )
Bureau of Meteorology Fax : (+61 3) 9669 4678 ( )__ )
GPO Box 1289K, Melbourne Ph (work): (+61 3) 9669 4861 (________)_)
Victoria 3001, Australia Ph (home): (+61 3) 9898 4425 .... ..
email : D.Jones at bom.gov.au .... ..
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007
From: "Dane Newman" [dpn at bigpond.com]
To: [aussie-weather at world.std.com]
Subject: aus-wx: Chilly Morning In Melbourne
Date: Mon, 24 Jan 2000 10:03:26 +1100
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Cool dry air and mostly clear conditions overnight has
seen a fairly chilly morning for mid summer in Melbourne especially in the outer
suburbs. The city recorded 9.5c but here in Kilsyth i recorded 5.5c, nearby
Scoresby recorded 5c, Moorabbin and Laverton 6c, and of couse Coldstream
near Lily dale and obviously in a frost hollow recorded 2c. Dane.
008
From: Lyle Pakula [LyleP at oakton.com.au]
To: "'aussie-weather at world.std.com'" [aussie-weather at world.std.com]
Subject: RE: aus-wx: Chilly Morning In Melbourne
Date: Mon, 24 Jan 2000 10:27:06 +1100
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It was a chilly start today, dew on the car window - first time i've seen
that in a while - winter is comming!
-----Original Message-----
From: Dane Newman [mailto:dpn at bigpond.com]
Sent: Monday, 24 January 2000 10:03
To: aussie-weather at world.std.com
Subject: aus-wx: Chilly Morning In Melbourne
Cool dry air and mostly clear conditions overnight has seen a fairly chilly
morning for mid summer in Melbourne especially in the outer suburbs. The
city recorded 9.5c but here in Kilsyth i recorded 5.5c, nearby Scoresby
recorded 5c, Moorabbin and Laverton 6c, and of couse Coldstream near Lily
dale and obviously in a frost hollow recorded 2c. Dane.
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009
X-Sender: mm_de at postoffice.utas.edu.au
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Date: Mon, 24 Jan 2000 10:50:48 +1100
To: aussie-weather at world.std.com
From: Miguel de Salas [mm_de at postoffice.utas.edu.au]
Subject: RE: aus-wx: Chilly Morning In Melbourne
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
At 10:27 AM 24-01-2000 +1100, you wrote:
>It was a chilly start today, dew on the car window - first time i've seen
>that in a while - winter is comming!
>
That reminds me of TV commercials in october announcing that 'Christmas is
just around the corner'
Here in Tasmania the weather is usually warmer and more stable in Feb-March
than in December or January!
Miguel de Salas
School of Plant Science,
University of Tasmania,
PO Box 252-55, Sandy Bay, Hobart
Tasmania, Australia, 7001.
mailto://mm_de at postoffice.utas.edu.au
My Moths Page:
http://members.xoom.com/migueldes/moths/moths.html
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010
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: RE: aus-wx: First & Last blast of Summer??
Date: Mon, 24 Jan 2000 10:19:40 +1000
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Hi All,
Well hear endeth the first and probably last blast of summer in Brissy.
Yesterday beat all expectations at Mt. Crosby with another hot one, a dry
35.5C before the mid-afternoon sea breeze. The forecast SE change turned up
around 8:00pm and today is 8/8 overcast and will struggle to reach mid-20's.
Not a bad blast, 5 days of 34C or over. Pity there wasn't a single rumble
to be heard, just massive teasing Cb in the distance. Also not a drop of
rain. End of Jan is in site and rainfall only 50% of Jan average to date.
I liked Ben's pictures, looks like a digital camera is the way to go.
But check this out: bare feet in 6C, ya gotta be kidding me. Feel like
cracking out the fluffies at the mere thought.
Reminds me of a story (off topic). Happened to visit Dillon in Colorado
many years ago, having just driven up from Denver where it was quite warm.
Dillon had a foot of fresh snow on the ground, and being an Aussie I had
well... thongs on. Well I'm wandering around in my thongs being amazed (the
first snow I had seen for at least 25 years), and this "Local",
appropriately dressed in fur lined coat and gloves, looks me up and down and
drawls "Kinda cool for sandals ain't it??"
>snip
Around 6 degrees and overcast in Blackheath this morning,thats pretty
cool for this time of the year. Doesn't exactly feel like winter, (Bare
feet in the morning, still) but not that warm either.
Lindsay P.
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011
From: Lyle Pakula [LyleP at oakton.com.au]
To: "'aussie-weather at world.std.com'" [aussie-weather at world.std.com]
Subject: aus-wx: RE: Where To Get LI and CAPE
Date: Mon, 24 Jan 2000 11:51:44 +1100
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Hi,
I was just wondering where the best resources are for getting forecast LI
and CAPE values for SE Australia?
Thanks,
Lyle
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012
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: aus-wx: An interesting weekend!
To: aussie-weather at world.std.com (Aussie Weather)
Date: Mon, 24 Jan 2000 11:43:42 +1100 (EST)
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A very interesting weekend for Australian meteorological devotees!
It looks as if a new Australian record low has been established for
January. Thredbo Village reported -8.0 yesterday, and Crackenback
-6.0 today. The Village report I regard with some scepticism, as it
is somewhat lower than others in favoured locations in the region
(-3.1 at Charlottes Pass - which got -5.4 today), but not enough to
dismiss it out of hand, especially as it is more sheltered from the
wind in that situation than Charlottes Pass is. The Crackenback
obs looks legitimate. Both readings would be below the existing
record of -5.6.
Canberra had (rounded) mins of 4 both yesterday and today. There was
a 4.3 in 1996, but otherwise we need to go back to 1984 for something
lower (3.6). Their record is 1.8 in 1956. The other notable Southern
Tablelands observation came from a usual suspect, Cooma Airport, with
-2.
Launceston Airport got down to 1 (rounded) yesterday, possibly a
January record (currently 0.8 in 1983, also a 1.0 in 1990). I'd
thought they might go even lower last night, especially given the
extremely dry air yesterday afternoon (dewpoints near -4), but it
didn't happen. Liawenee got -4.0, not too far short of the Tasmanian
January record of -5.0, this morning, and Grove had 0.3 (0.1 off its
January record), an impressive reading for a site near sea level.
As David Jones has already reported there was snow at Lake Mountain
in Victoria yesterday. Melbourne had 9.5 this morning, its first
sub-10 in January since 1994 (and its first in any summer month since
December 1995), with 2 at Coldstream, and below freezing at the alpine
sites.
You'll have already seen material about WA. We won't have a clearer
picture until today's 0900 observations come in, but it is certainly
an exceptional event (on top of several others that have already
occurred). Some sites will be getting close to (if not beyond) their
annual average rainfall by the end of January, something that isn't
unheard of in the northern reaches of the deserts, but would be rare
that far south. I did notice that Laverton had had 77mm in the 6
hours 0900-1500 yesterday, so their 0900 obs could be worth watching.
In addition, no WA station exceeded 35 degrees yesterday - which
would be rare, I would think, for any month in the summer half of the
year.
Blair Trewin
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013
From: "Pearce" [r_pearce at Dingoblue.net.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: RE: Where To Get LI and CAPE
Date: Mon, 24 Jan 2000 12:10:24 +1100
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Hi Lyle
The AVN forecast site is the one I and a lot of other people use. I'm not
sure about any others. The URL is :
http://sgi62.wwb.noaa.gov:8080/cgi-bin/disp_avn.sh
Just follow all the instructions to go through the first 2 pages and I
generally select custom map for SE Australia with parameters :
long 140 long width 20 lat -40 lat height 20
That gives you a reasonably good coverage of NSW, Vic, eastern SA and
southern Queensland.
Hope this helps
Matthew
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014
X-Originating-IP: [203.0.101.2]
From: "David Croan" [wxbustchase at hotmail.com]
To: aussie-weather at world.std.com
Subject: aus-wx: NHQ article on 14/4/99 Supercell
Date: Mon, 24 Jan 2000 12:36:00 EST
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Hi all,
The June 99 NHQ has an article on the 14/4/99 Sydney supercell. Worth the
read for those interested in hail.
http://www.es.mq.edu.au/NHRC/nhqv5i2.html
David
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
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015
Date: Mon, 24 Jan 2000 11:33:10 +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: RE: Where To Get LI and CAPE
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Lyle,
You can also visit this following page for an explanation of the Lifted
Index, and a detailed explanation of the site Pearce has provided the
URL for..
http://www.bsch.simplenet.com/weathereducation/liftedindex/liftedindex.htm
Unfortunately the images do not work on that page (they were somehow
deleted from the server!!!!) at the moment.. but there is still an
explanation on how to plot the Lifted Index forecasts - and any other
variable..
Pearce wrote:
>
> Hi Lyle
>
> The AVN forecast site is the one I and a lot of other people use. I'm not
> sure about any others. The URL is :
> http://sgi62.wwb.noaa.gov:8080/cgi-bin/disp_avn.sh
>
> Just follow all the instructions to go through the first 2 pages and I
> generally select custom map for SE Australia with parameters :
> long 140 long width 20 lat -40 lat height 20
> That gives you a reasonably good coverage of NSW, Vic, eastern SA and
> southern Queensland.
>
> Hope this helps
>
> Matthew
>
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> To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com
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> message.
> -----------------------jacob at iinet.net.au------------------------------
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016
Date: Mon, 24 Jan 2000 11:46:00 +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: 22 dead, 100's hospitalised (was: An interesting weekend!)
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Blair, everyone..
The media up here are saying that 22 people died in the heatwave that
effect SE QLD late last week and on Saturday.. also hundreds more were
treated in hospitals for heat related complaints..
Nice an cool here at the moment, with an inside temperature of 25c ..
there are indiciations that winds will turn N or NW'rly later this week
ahead of the next trough system, bringing hot conditions again - some
models also have 2 - 3 days of storms for SE QLD..
Blair Trewin wrote:
>
> A very interesting weekend for Australian meteorological devotees!
>
> It looks as if a new Australian record low has been established for
> January. Thredbo Village reported -8.0 yesterday, and Crackenback
> -6.0 today. The Village report I regard with some scepticism, as it
> is somewhat lower than others in favoured locations in the region
> (-3.1 at Charlottes Pass - which got -5.4 today), but not enough to
> dismiss it out of hand, especially as it is more sheltered from the
> wind in that situation than Charlottes Pass is. The Crackenback
> obs looks legitimate. Both readings would be below the existing
> record of -5.6.
>
> Canberra had (rounded) mins of 4 both yesterday and today. There was
> a 4.3 in 1996, but otherwise we need to go back to 1984 for something
> lower (3.6). Their record is 1.8 in 1956. The other notable Southern
> Tablelands observation came from a usual suspect, Cooma Airport, with
> -2.
>
> Launceston Airport got down to 1 (rounded) yesterday, possibly a
> January record (currently 0.8 in 1983, also a 1.0 in 1990). I'd
> thought they might go even lower last night, especially given the
> extremely dry air yesterday afternoon (dewpoints near -4), but it
> didn't happen. Liawenee got -4.0, not too far short of the Tasmanian
> January record of -5.0, this morning, and Grove had 0.3 (0.1 off its
> January record), an impressive reading for a site near sea level.
>
> As David Jones has already reported there was snow at Lake Mountain
> in Victoria yesterday. Melbourne had 9.5 this morning, its first
> sub-10 in January since 1994 (and its first in any summer month since
> December 1995), with 2 at Coldstream, and below freezing at the alpine
> sites.
>
> You'll have already seen material about WA. We won't have a clearer
> picture until today's 0900 observations come in, but it is certainly
> an exceptional event (on top of several others that have already
> occurred). Some sites will be getting close to (if not beyond) their
> annual average rainfall by the end of January, something that isn't
> unheard of in the northern reaches of the deserts, but would be rare
> that far south. I did notice that Laverton had had 77mm in the 6
> hours 0900-1500 yesterday, so their 0900 obs could be worth watching.
> In addition, no WA station exceeded 35 degrees yesterday - which
> would be rare, I would think, for any month in the summer half of the
> year.
>
> Blair Trewin
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017
X-Sender: jacob at mail.iinet.net.au
X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1
Date: Mon, 24 Jan 2000 13:04:53 +0800
To: aussie-weather at world.std.com
From: Jacob [jacob at iinet.net.au]
Subject: Re: aus-wx: An interesting weekend!
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
>
>You'll have already seen material about WA. We won't have a clearer
>picture until today's 0900 observations come in, but it is certainly
>an exceptional event (on top of several others that have already
>occurred). Some sites will be getting close to (if not beyond) their
>annual average rainfall by the end of January, something that isn't
>unheard of in the northern reaches of the deserts, but would be rare
>that far south. I did notice that Laverton had had 77mm in the 6
>hours 0900-1500 yesterday, so their 0900 obs could be worth watching.
>In addition, no WA station exceeded 35 degrees yesterday - which
>would be rare, I would think, for any month in the summer half of the
>year.
>
>Blair Trewin
Also temperatures were below normal on the weekend, I know for Perth, the
maximum only got to 19.7C, which would have been the 2nd coldest January
maximum on record, the coldest for the city site was 19.6C in 1945, even
though its not directly comparable due to site changes, but the 9am obs
showed 21C on Sunday morning, so it doesnt count anyway. I'm not sure if
Perth Airport broke any temperature records.
The Sunday Times showed a run down of how the rain fell in the city on
Saturday morning, as you can see nearly all of the 104mm fell between 3am
and 9am.
Midnight 0.8mm
1am 3.0mm
2am 9.6mm
3am 20.0mm
4am 44.2mm
5am 81.2mm
6am 83.4mm
8am 83.8mm
9am 104.0mm
Jacob
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018
X-Sender: carls at ford.ace-net.com.au
Date: Mon, 24 Jan 2000 16:00:50 +1000
To: aussie-weather mailing list [aussie-weather at world.std.com]
From: Carl Smith [carls at ace-net.com.au]
Subject: aus-wx: TC JO
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi All.
According to Fiji Met. Service, Tropical Cyclone Jo (09F) has formed in the
Fiji area of reposibility between Vanuatu and Fiji, and TD (08F) is
forecast to become a TC in the same region.
JTWC is issuing warnings for TC (07P), which seems to be TC Jo (09F).
Seems the numbering systems have got out of synch.
Links to current advices are on my website at
http://www.ace-net.com.au/~carls/current.htm.
Regards,
Carl.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Carl Smith.
Gold Coast, Queensland, Australia.
carls at ace-net.com.au
Cyclone Tracking Maps Website:
http://www.ace-net.com.au/~carls/index.htm
Current Cyclone Information Page:
http://www.ace-net.com.au/~carls/current.htm
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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019
X-Sender: paisley at mail.cobweb.com.au
Date: Mon, 24 Jan 2000 17:13:11 +0930
To: aussie-weather at world.std.com
From: Phil Bagust [paisley at cobweb.com.au]
Subject: Re: aus-wx: Adelaide rain
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
8 hours of gentle rain here with no end in sight. The actual amount has
been insignificant (~5mm), but it's been a strange, cool day....
Phil 'Paisley' Bagust
paisley at cobweb.com.au
http://www.chariot.net.au/~paisley2
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020
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: aus-wx: Possible Australian January record low
To: aussie-weather at world.std.com (Aussie Weather)
Date: Mon, 24 Jan 2000 18:22:02 +1100 (EST)
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An update on my post this morning.
The Thredbo Village -8.0 from yesterday is definitely wrong - it
appears that the observer read the wrong end of the index (suggesting
a true minimum of around -1, which seems more like it).
The Crackenback -6 is fine - but with a twist. Many automatic stations
can only transmit maximum and minimum temperature in whole degrees
(because of a limitation in the coding), so the value appears in
our database as -6.0. However, the Thredbo resort has access to a
console giving observations from the instrument, and informed us that
the value on that was -5.6. We'll need to make a decision here on
which of these two values should be the official observation - the
instinctive answer would seem to be the more precise value, but then
that raises the question of inconsistency with other situations when
the station had no manual input (it's not an issue in this case, but
could be if the manual observation was close to a previously observed
autmoatic one).
-5.6 would only equal the Australian January record; -6.0 would break
it. Will keep you posted. (If the weekend sees as spectacular a cold
outbreak as the one the ECMWF is predicting, it might be a moot point
by next Sunday anyway).
Blair Trewin
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021
From: "Michael Thompson" [michaelt at ozemail.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: NHQ article on 14/4/99 Supercell
Date: Mon, 24 Jan 2000 18:14:43 +1100
X-Mailer: Microsoft Outlook Express 5.00.2014.211
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Excellent article with some informative graphs, except I disagree with the
storm changing course to move inland. The storm stayed roughly on the same
track, but the coastline north of Wollongong swings sharply NE.
Michael
> Hi all,
>
> The June 99 NHQ has an article on the 14/4/99 Sydney supercell. Worth the
> read for those interested in hail.
>
> http://www.es.mq.edu.au/NHRC/nhqv5i2.html
>
>
> David
>
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
>
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022
From: "Michael Thompson" [michaelt at ozemail.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: An interesting weekend!
Date: Mon, 24 Jan 2000 18:03:59 +1100
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My sister in law lives in a small town called Narembeen ( near Merredin ) in
Western Australia. The oldest resident in town, who has lived there for 70
years said it was the wettest he has ever seen. ( no explanation of '
wettest ' )
Michael
>
> You'll have already seen material about WA. We won't have a clearer
> picture until today's 0900 observations come in, but it is certainly
> an exceptional event (on top of several others that have already
> occurred). Some sites will be getting close to (if not beyond) their
> annual average rainfall by the end of January, something that isn't
> unheard of in the northern reaches of the deserts, but would be rare
> that far south. I did notice that Laverton had had 77mm in the 6
> hours 0900-1500 yesterday, so their 0900 obs could be worth watching.
> In addition, no WA station exceeded 35 degrees yesterday - which
> would be rare, I would think, for any month in the summer half of the
> year.
>
> 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------------------------------
>
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| Document: 000124.htm
Updated: 30 January 2000 |
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