Date: Wed, 21 Oct 1998 06:22:21 +1000
From: Anthony Cornelius 
To: aussie-weather at world.std.com
Subject: Re: aussie-weather: Lifted Indices
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi Kevin,

If you go to http://www-das.uwyo.edu/upperair/au.html
then that will give you the lifted indicies, it's not a map though.  But
rather the soundings for each individual BoM obs. station.  Along the
right hand side there will be
a column with information, it will have "LI: "  That is the
lifted index.

Anthony

Kevin Phyland wrote:
> 
> Hi, anybody,
> 
> I've been cruising the Allentown Weather site in the US and notice that
> they have Lifted Indices maps as a guide to possible severe weather. Is
> there some reason that Australia doesn't use it (like too few data
> points, perhaps) or do we actually use it?
> Also can anybody tell me what it's based on?
> 
> Yours,
> Kevin Phyland.

--------------------------------------------------------------------------------------

Date: Wed, 21 Oct 1998 00:18:23 -0400
From: David Hart 
To: aussie-weather at world.std.com
Subject: aussie-weather: My Mistake
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

I got a bounced message earlier, that I approved. I read it over really
quickly and it seemed to be aussie weather related. I failed to notice that
it was over 400k with the attachments. This would take almost 5 min. to
download over a 14.4 modem. (Not to mention the almost 20M (400k x 40) of
temp-files it makes on the server.) 

When you have a lot of folks on a mailing list, you don't know what sort
of hardware or software the other subscribers have. Someone on the list
might still have a 2400 baud modem (it's good enough for text e-mail). It
would take almost 20 min. to download. Also you can't assume what sort of
software the other subscribers have. I for one don't have MS-Word on
this computer, so I can't easily read Word documents.

The best thing to do is to use only plain text for your postings on the
mailing list. If you have a picture or sound (anyone have some good
thunder?) that you would like to share with the rest of the group, put it
on the web, and then write up a description of it, along with the URL and
send that to the list. If you have no web space, e-mail it to me:

	dhart at world.std.com

or Jacob

	jacob at iinet.net.au

(depending on the time of day or night) and we can put it on our web sites 
temporarily.

We are suffering the pains us success. This list have become very active,
and we have to be careful about how much bandwidth we use up. For my part I
will be more careful about reading the bounced messages I approve, and I
apologize for any inconvenience it may have caused.

David Hart

--------------------------------------------------------------------------------------

X-Originating-Ip: [137.154.210.13]
From: "Dann Weatherhead" 
To: aussie-weather at world.std.com
Subject: Re: aussie-weather: My Mistake
Date: Tue, 20 Oct 1998 22:35:34 PDT
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Thanks David

I have been signed up by Jacob and thankyou for your email explaining me 
why majordomo decided to make my life difficult. Anyway I look forward 
to reading this exciting list. The list is something I had dreamed of a 
long time before I ever had the net, and the fact that I can share 
weather and storm infomation with other weather freaks like myself only 
makes for alot of fun in the future. I had a read over some of the 
archives and while I know a fair bit about weather, some of the weather 
abbreviations of some of the radar and satellite computer images threw 
me abit so if they are being used with frequency can they be deciphered 
for the slow ones like me for at least the first few times
Thanks Again.
Dann


______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com

--------------------------------------------------------------------------------------

Date: Wed, 21 Oct 1998 17:37:25 +1000
From: Anthony Cornelius 
To: Australian Weather Mailing List 
Subject: aussie-weather: Brisbane Storm Report
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all,

This is just a favour for a friend of mine (James Chambers) he's having
some difficulties with his email.  James's storm report of the October
13 storms is up, if you'd like to read it goto:
http://www.ozemail.com.au/~jamestorm/bristorm/reports/oct13_98.html

My report is also finished, unfortunately I don't have any means of
uploading it to a server.  So if you're interested, please email me
personally at cyclone at stealth.com.au it's rather large so I don't want
to send it over the list.  I hope to eventually get some sort of page up
so I can eventually upload reports to the net.

Anthony Cornelius

--------------------------------------------------------------------------------------

X-Sender: jacob at iinet.net.au
Date: Wed, 21 Oct 1998 15:39:38 +0800
To: aussie-weather at world.std.com
From: Jacob 
Subject: aussie-weather: FW: Weekend Trough - any thoughts? 
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

>X-From_: aussie-weather-approval at world.std.com  Wed Oct 21 15:28:33 1998
>Return-Path: 
>X-Envelope-To: 
>From: aussie-weather-approval at world.std.com
>Date: Wed, 21 Oct 1998 03:28:22 -0400 (EDT)
>To: aussie-weather-approval at world.std.com
>Subject: BOUNCE aussie-weather at world.std.com:    Non-member submission
from [Jimmy Deguara ]   
>
>>From owner-aussie-weather  Wed Oct 21 03:28:20 1998
>Return-Path: 
>Received: from world.std.com by europe.std.com (8.7.6/BZS-8-1.0)
>	id DAA18454; Wed, 21 Oct 1998 03:28:19 -0400 (EDT)

This bounced from Jimmy, instead of waiting for dave to approve it which
would take 4 or 5 hours because it's 3:30am there, I thought i would
forward it to the list.

Jacob



>
>
>Jimmy Deguara here. I like the trough. I hope it
>provides a good weekend of entertainment. A lot of
>chasers want to chase for the first time and I can't
>wait to ge them involved.
>
>Jimmy Dgeuara
>
>
>
>
>---Nick Sykes  wrote:
>>
>> The latest charts have a trough forming over
>eastern Australian on the
>> weekend, dragging down warm, humid air from the
>north, any thoughts on
>> severe weather creating potential?
>> 
>> Nick

--------------------------------------------------------------------------------------

X-Sender: jacob at iinet.net.au
Date: Wed, 21 Oct 1998 16:12:21 +0800
To: aussie-weather at world.std.com
From: Jacob 
Subject: aussie-weather: FW: Re: Best Storm You Have Seen 
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com


This is forwarded from Jimmy Deguara.

>
>My best storm is hard to choose but I must say the
>one on 7th February 1984 was the one that affected me
>the most.
>
>It was a humid day (sultry) and early afternoon, the
>edges of thunderstorms approached and some brief heav
>showers and cleared towards the Central Coast.
>
>I then heard Mike Bailey give a warning of heavy rain
>for storms through Campbelltown and the this matched
>my observations of a huge bank of cumulonimbus cloud
>approaching.
>
>Dark clouds in several layers approached and I also
>noticed the base clouds aproaching from the S.
>
>The squall hit at 5:50pm and immediately there was a
>blackout. Trees were swaying violently and the rain
>once it started was horizontal. It was the most
>violent thunderstorm I had observed. Unfortunately I
>had to help mop up the water coming in from under the
>eves and under the garage roller door. The roller
>door almost blew in by the way.
>
>Small hail started falling. The winds veered
>gradually from the SW to S to SE and then NE. During
>the height of the storm, I recall very intense and
>continuous lightning to the N-NW in terms of pink
>lightning. This was the area very local that the
>tornado must have been passing through!!!!
>
>The nect day, we went for a tour in the residential
>areas. Power lines were cut, trees down in all roads,
>roof damage you name it. There even was a two storey
>factory building with the side blown in....
>
>It was the most incredible storm I have been involved
>in. I wish I had known at the age of 16 that this was
>a tornadic storm.
>
>Jimmy Deguara from Schofields....


>---dpn  wrote:
>>
>> Just wondering what's the best storm (most
>exciting) people subscribing to
>> aussie weather have ever seen. The best storm I
>ever saw was on Christmas
>> Eve 1978. I was living in Oakleigh in the SE
>suburbs of Melbourne at the
>> time. The day had been warm and humid top temp
>28.8. The day started off
>> mostly overcast with a deck of Ac over the city.
>this cleared by late
>> morning and the afternoon was mostly sunny and
>humid. Some large Cu
>> developed during the afternoon, but there did not
>seem to be any threat of
>> storm at 6pm. when I recorded a temp of 26.7
>Humidity 54%. A Humid east to
>> north east air stream had developed over the state
>and a trough of low
>> pressure was over western and central Victoria. At
>about 8pm I noticed some
>> large Cu and Cb towards the Nw. Checked the Radio
>lots of static indicating
>> lots of Lightning activity. went outside again at
>8.30pm climbed up on the
>> roof of the house for a better view of the
>situation starting to get dark.
>> Large cb to the west and North west frequent  
>lightning  particularly to
>> the NW. Lightning was still bout 40kms away at this
>stage so no thunder
>> could be heard. 9.30pm storm was over the city
>still intenseifying.
>> spectacular display of frequent lightning with many
>cg flashes. The anual
>> Carols by Candelight was almost washed out. Had to
>get off the roof for
>> safety reasons and because heavy rain was starting
>to fall. Storm broke
>> over Oakleigh at 10.00pm and continued unabated for
>the next 70mins. The
>> sky was electric incessant lightning at least 100
>flashes per minute like
>> looking at a strobe light. It dazzled  the eyes to
>look at it for too long.
>> Very heavy rain and flash flooding over most of
>Melbourne thousands of
>> Households including us blacked out. I recorded
>39mm of rain. No Hail or
>> damaging winds. But as I am a lightning fan I rate
>this as the best storm I
>> personally witnessed. One other good storm I should
>mention was back in
>> July 1963 a very rare severe winter Thunderstorm. I
>have not witnessed a
>> winter storm like it since. It started about 9pm( I
>was only 11 years old
>> at the time). I noticed a lot of lightning to the
>Sw. Shortly after 9.30pm
>> the storm hit and continued unabated till 6am. Gale
>force winds frequent
>> lightning  Rain and Hail continued all night. 45mm
>fell in the city I
>> recorded 53mm. Went with my dad down to Richmond in
>the morning. The houses
>> and lawns in that area were white with Hail, still
>remember seeing a bloke
>> shovelling hail off the drive ways of a petrol
>station. Later that
>> afternoon me my brother and my mate Dave rode our
>bikes over to Caulfield
>> park were we surprised to see many large trees had
>been uprooted. The
>> VFL(now AFL) cancelled the entire round of League
>Footy. This is the last
>> time a round of Footy was cancelled.    Dane Newman

--------------------------------------------------------------------------------------

Date: Wed, 21 Oct 1998 18:43:17 +1000 (EST)
From: Paul Graham 
To: aussie-weather at world.std.com
Subject: aussie-weather: Lifted Index.
Reply-Receipt: pgraham1 at extro.ucc.su.oz.au
Reply-Read: pgraham1 at mail.usyd.edu.au
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Re: Lifted Index.  I think you may have to modify sounding data a little
to approximate environment storms develop in order to get a better idea of
the potential (eg. account for surface heating, consider sounding may be
contaminated by cloud, and look for closest sounding station to where
storms may develop.  The unmodified morning sounding for Moree on October,
13th has CAPE=117J/Kg, LI=-0.1 and BRN=1.7 - not really indicative of a
storm situation). Then you may be able to approximate some indices like
CAPE, BRN, LI etc... Perhaps compare sounding data from the AVN model
available from the NOAA Air Resources Lab: 
http://www.arl.noaa.gov/ready/profile.html 

- Paul G. 

----------------------------
Paul Graham
m3052695 at hardy.ocs.mq.edu.au
----------------------------

On Wed, 21 Oct 1998, Jacob wrote:

> 
> This bounced from Jimmy.
> 
> The reason they are bouncing is because they are coming from different
> email accounts that aren't subscribed. Which is fine, it just means that it
> may take a little longer for everyone too see the message.
> 
> >
> >
> >Try http://sgi62.wwb.noaa.gov:8080/cgi-bin/disp_avn.sh
> > for lifting Indexes. Choose LIFTX as the variable
> >and choose Australia. Now Paul Graham, I know this
> >may not be the ideal data but it is better than
> >nothing.
> >
> >
> >
> >
> >---Kevin Phyland  wrote:
> >>
> >> Hi, anybody,
> >> 
> >> I've been cruising the Allentown Weather site in
> >the US and notice that 
> >> they have Lifted Indices maps as a guide to
> >possible severe weather. Is 
> >> there some reason that Australia doesn't use it
> >(like too few data 
> >> points, perhaps) or do we actually use it?
> >> Also can anybody tell me what it's based on?
> >> 
> >> Yours,
> >> Kevin Phyland.

--------------------------------------------------------------------------------------

From: "paulmoss" 
To: 
Subject: Re: aussie-weather: Brisbane Storm Report
Date: Wed, 21 Oct 1998 18:50:36 +1000
X-Msmail-Priority: Normal
X-Mimeole: Produced By Microsoft MimeOLE V4.72.3110.3
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Howdy all! I have read with much interest the forecast for the weekend.
Where can we expect any action? Is there chances of it being severe? How did
you come to the conclusions that this may be the case. I am doing this so
that people who are new may understand the one of the processes of storm
chasing is the preparation stage. That is sitting down, analysing and
forecasting . Please try not to use abbrev so it can help others!

Paul from Taree.

--------------------------------------------------------------------------------------

Date: Wed, 21 Oct 1998 19:15:18 +1000
From: david.croan at agal.gov.au (David Croan)
Subject: aussie-weather: Weekend Trough - any thoughts + best storm?
To: aussie-weather at world.std.com
Content-Description: cc:Mail note part
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

     Well Jimmy I have cancelled a short holiday that I had planned for 
     this weekend in Kiama as it is simply to far from Rooty Hill!. 
     
     
     Although I have no records and cannot provide a great level of detail, 
     I do remember two standout storms, one for it's severity and the other 
     for it dramatic visual appearance. The first would be the supercell 
     which hit the southwestern suburbs of Sydney in March (18) 1990. The 
     general southwestern corridor of Sydney, which is where I live, seems 
     to be visited relatively frequently by severe category hail - I can 
     recall three separate occasions, during the 80's where all of our west 
     facing windows have been broken by hail (incidentally, this hasn't 
     happened for about 10 years so either the newer glass thickness may 
     have something to do with it or we are overdue for some large hail). 
     At the time my brother was playing soccer at Bass Hill and although I 
     noticed it gradually getting darker and rolling thunder becoming 
     increasingly audible I was paying more attention to the game. When I 
     did turn my attention to the approaching storm I saw what I could only 
     describe as a dirty looking rain curtain - it actually looked evil to 
     me then. First came rain with what I now assume was the forward flank 
     downdraft, then lightning, then hail/rain/wind then almost purely hail 
     - giant hail. All this time we were standing under the verandah of the 
     soccer clubhouse. It was quite deafening, scary actually; we had 
     frequent close lightning, and hail stones (most of which I remember 
     having diameters about the width of my palm - later recorded as 7-8cm 
     by the bureau) being driven by strong winds bashing this aluminium 
     roof. Of course the screaming of terrified children added to the 
     scene. 
     
     The second storm, a squall line (Dec 1989 - I think) moved through 
     Padstow with a splendid rapidly moving shelf cloud which stretched to 
     the Nth as far as I could see (There is a couple of photos of the 
     gustfront in the Severe storm photos section of Aust. Sev. Weather.). 
     The lightning was also the most intense I have ever witnessed during 
     daytime with the very frequent bolts pulsating repeatedly. 

--------------------------------------------------------------------------------------

Date: Wed, 21 Oct 1998 20:15:41 +1000 (EST)
From: Paul Graham 
To: Aussie Weather 
Subject: aussie-weather: Storms Next Weekend + Info. On Jetstream.
Reply-Receipt: pgraham1 at extro.ucc.su.oz.au
Reply-Read: pgraham1 at mail.usyd.edu.au
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hello everyone,

I would have to agree with those who think something may fire up on the
weekend.  I checked a couple of the models (NOGAPS and AVN) and they seem
to be generally in agreement.  This next trough looks like it will have a
more northerly component than some of the previous disappointing ones.
This could mean it will draw in more low level moisture needed for
significant convection.  The 300 Hpa jet is still indicated to gain a nice
north-south component with a wind maximum forecast over nothern NSW.  The
right exit or "delta" region of the jetstream is located on the southern
side (southern hemisphere) immediately after a maximum wind velocity.  It
is often associated with severe thunderstorms because of the strong upper
air divergence found here. The reason for this is that as air in the jet
slows from a maximum velocity, it curls northward creating a region of
diverging wind on the southern side (in the southern hemisphere).  This is
known as the right exit of the jet or the "delta" region and helps to
intensify any convection occurring below.  That's all for now. 
	Cheerio from,
		Paul G.

----------------------------
Paul Graham
m3052695 at hardy.ocs.mq.edu.au
----------------------------

--------------------------------------------------------------------------------------

X-Sender: mbath at ozemail.com.au
Date: Wed, 21 Oct 1998 21:07:32 +1000
To: aussie-weather at world.std.com
From: Michael Bath 
Subject: aussie-weather: Re: Brisbane Storm Reports
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

I have put Anthony's report online from Storm News:
http://australiansevereweather.simplenet.com/storm_news/
together with a link to James' report.

Excellent accounts of an amazing day guys!

Michael


At 17:37 21/10/98 +1000, you wrote:
>Hi all,
>
>This is just a favour for a friend of mine (James Chambers) he's having
>some difficulties with his email.  James's storm report of the October
>13 storms is up, if you'd like to read it goto:
>http://www.ozemail.com.au/~jamestorm/bristorm/reports/oct13_98.html
>
>My report is also finished, unfortunately I don't have any means of
>uploading it to a server.  So if you're interested, please email me
>personally at cyclone at stealth.com.au it's rather large so I don't want
>to send it over the list.  I hope to eventually get some sort of page up
>so I can eventually upload reports to the net.
>
>Anthony Cornelius

*==========================================================*
 Michael Bath  Oakhurst, Sydney   mbath at ozemail.com.au
                 Australian Severe Weather
       http://australiansevereweather.simplenet.com/
*==========================================================*

--------------------------------------------------------------------------------------

X-Sender: jacob at iinet.net.au
Date: Wed, 21 Oct 1998 19:14:56 +0800
To: aussie-weather at world.std.com
From: Jacob 
Subject: aussie-weather: Weather Chat
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com


Just a reminder, if your on the internet right now (Its 9:10pm EST as I
write this), and you have some spare time, join us, the Australian weekly
weather meeting is in progress, we are chatting live on undernet #weather.

Use your nomal IRC client, of if its easier for you, chat via your web
browser at:

http://www.iinet.net.au/~jacob/chat.html

Jacob

--------------------------------------------------------------------------------------

From: "James C" 
To: "Aussie Weather" 
Subject: aussie-weather: Brisbane storm report
Date: Wed, 21 Oct 1998 17:03:09 +1000
X-Msmail-Priority: Normal
X-Mimeole: Produced By Microsoft MimeOLE V4.72.3110.3
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all

Yesterday I finished my report on the severe t'storms (including the
Brisbane Supercell) on my site.  You'll find the link right at the top of my
homepage.  You've probably heard most of it, but I've put in a few exact
figures such as hail size and wind strength in there.

Regards
-----------------------------------------------------------------
James Chambers
jamestorm at ozemail.com.au
The Brisbane and SE Qld Storm Site
http://www.ozemail.com.au/~jamestorm/bristorm.html

--------------------------------------------------------------------------------------

Date: Wed, 21 Oct 1998 00:20:43 -0700 (PDT)
From: Jimmy Deguara 
Subject: Re: aussie-weather: Lifted Indices
To: aussie-weather at world.std.com
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com


Try http://sgi62.wwb.noaa.gov:8080/cgi-bin/disp_avn.sh
 for lifting Indexes. Choose LIFTX as the variable
and choose Australia. Now Paul Graham, I know this
may not be the ideal data but it is better than
nothing.




---Kevin Phyland  wrote:
>
> Hi, anybody,
> 
> I've been cruising the Allentown Weather site in
the US and notice that 
> they have Lifted Indices maps as a guide to
possible severe weather. Is 
> there some reason that Australia doesn't use it
(like too few data 
> points, perhaps) or do we actually use it?
> Also can anybody tell me what it's based on?
> 
> Yours,
> Kevin Phyland.

--------------------------------------------------------------------------------------

From: disarm at braenet.com.au
X-Sender: disarm at braenet.com.au (Unverified)
Date: Wed, 21 Oct 1998 23:55:57 +1000
To: aussie-weather at world.std.com
Subject: aussie-weather: im back!
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Matt from sydney.
Back after some computer troubles, 4-5 days without it, and i get something
like 150 emails!gotta love this list ! :)
the next week or so looks interesting, some potential for severe weather
around the place... hope it falls here, been dull for a while now..
Matt

ps> any plans for future organised storm chase's ? just asking..thanks

--------------------------------------------------------------------------------------

From: "James Chambers" 
To: "Aussie Weather" 
Subject: aussie-weather: total totals 
Date: Wed, 21 Oct 1998 23:54:08 +1000
X-Msmail-Priority: Normal
X-Mimeole: Produced By Microsoft MimeOLE V4.72.3110.3
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all

I just checked the storm weatherwall at Laurier's site and you may notice
storm activity (or at least the risk of) is forecast for 90% of Australia on
Sunday!  Yeah I know its a long way off, but it certainly made me happy!  I
guess in the next few days if it stays the same I'll be even happier.  But
let's wait and see.  I'll be looking for a continued storm situation, not a
one off day.

regards
-----------------------------------------------------------------
James Chambers
jamestorm at ozemail.com.au
The Brisbane and SE Qld Storm Site
http://www.ozemail.com.au/~jamestorm/bristorm.html