From                                           Subject
--------------------------------------------------------------------------------------
001 Michael Bath [mbath at ozemail.com.au]       Sydney AMOS Meeting: Wollongong Flash Flood
002 Lindsay [writer at lisp.com.au]                   Another Dangerous swell running - NSW
003 "Terry Bishop" [dymprog at mpx.com.au]            Orange Weather
004 Ross Portas [rportas at mindless.com]             For Those Without Scanners
005 Keith Barnett [weather at ozemail.com.au]         Possible sea breeze front in Sydney?
006 Jimmy Deguara [jimmyd at ozemail.com.au]          Possible sea breeze front in Sydney?
007 "Joanne Walker" [jmwalker at hotmail.com]         Brisbane
008 "Michael Thompson" [michaelt at ozemail.com.au]   Possible sea breeze front in Sydney?
009 "Michael Thompson" [michaelt at ozemail.com.au]   For Those Without Scanners
010 Ben Quinn [Bodie19 at eisa.net.au]                Brisbane

--------------------------------------------------------------------------------------
001

X-Sender: mbath at ozemail.com.au
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Date: Thu, 18 Feb 1999 08:35:53 +1100
To: aussie-weather at world.std.com
From: Michael Bath [mbath at ozemail.com.au]
Subject: aus-wx: Sydney AMOS Meeting: Wollongong Flash Flood
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

For those in an interest in the Wollongong flash flood of August 1998 there
is an AMOS meeting to be held next Wednesday 24th at the Sydney BoM. See
below for further information.

regards, Michael


>Date: Wed, 17 Feb 1999 14:57:19 +1100 (EST)
>From: Australian Meteorological and Oceanographic Society 
>To: mbath
>Subject: AMOS Newsletter No. 99/1
>
>AUSTRALIAN METEORLOGICAL & OCEANOGRAPHIC SOCIETY - SYDNEY CENTRE -
>
>NEWSLETTER No. 99/1,  FEBRUARY 1999
>
>Vice Chair and Secretary positions fall vacant
>
>Due to an imminent move overseas for 6-12 months, Edwina Tanner has
>resigned as Secretary and Vice Chair. Nominations for these positions are
>now called for and should be forwarded to Dr Neil Holbrook as soon as
>possible. It is hoped that the positions will be filled at the Scientific
>Meeting on 24 February. In the interim, Andrew Treloar has been attending
>to the Secretary's duties.
>
>Dr Neil Holbrook, Division of Environmental and Life Sciences,
>Macquarie University,  BH: (02) 9850 8429
>e-mail: amos at penman.es.mq.edu.au
>
>The calendar for 1999 has yet to be finalised.
>
>
>AUSTRALIAN METEORLOGICAL & OCEANOGRAPHIC SOCIETY - SYDNEY CENTRE -
>
>NOTICE OF FEBRUARY SCIENTIFIC MEETING
>
>The next meeting of the AMOS Sydney Centre will be held on Wednesday 24
>February 1999.
>
>Venue: Bureau of Meteorology,
>300 Elizabeth St (cnr Foveaux St) Sydney (Opposite Central Railway Station)
>15th floor Conference room
>Time: 7.30 pm for a 7.45 pm formal start
>
>The program includes announcements, the election of Vice Chair and
>Secretary, the current weather situation and forecasts for the week. 
>
>The Committee will be dining with the Speaker at the nearby Furama
>Restaurant from about 6:00pm. Members and their guests are welcome to join
>the Committee at the dinner. Please contact Andrew Treloar (02 92961524 or
>a.treloar at bom.gov.au) if you wish to attend the dinner so that a booking
>can be made. Some light refreshments will be available following the meeting.
>
> The Speaker for the night will be Mr Bruce Buckley, Supervising
>Meteorologist for the Bureau of Meteorology's NSW Regional Forecasting Centre.
>
>The topic: "The Wollongong Flash Flood - Monday August 17 1998"
>
>Abstract: Between 1800 to 2100 Eastern Standard Time on Monday August 17
>1998, the City of Wollongong, Australia, was devastated by extensive flash
>flooding. This was produced by some of the heaviest two to three hour
>duration rainfall experienced in New South Wales' history. One woman was
>swept to her death in her vehicle, dozens were injured, 500 houses were
>severely damaged by the floodwaters and 4000 motorists were stranded on the
>F6 Freeway for several hours. Land slips and debris flows were experienced
>in several areas. Insurance payouts of approximately $45 million have been
>paid (Insurance Council of Australia 1999) with uninsured and uninsurable
>property damage thought to be of equal or greater magnitude. The floods cut
>all road and rail links between Sydney and Wollongong for several hours and
>a State of Emergency was declared for the region. This paper describes the
>extent of the flash flood producing rainfall, which peaked at
>over 100mm/hour and the meteorological factors that produced them. The
>ability of a current operational numerical model to predict the severity of
>this event in real time is then presented.
>
>The Speaker: Bruce Buckley is currently the Supervising Meteorologist for
>the NSW Regional Forecasting Centre. The RFC has forecast and warning
>responsibilities for all of NSW, including the ACT and offshore islands. He
>has also spent a couple of years as Deputy Regional Director of the NSW
>Regional Office. His former experiences include periods of time in the
>Bureau's Head Office in Melbourne, as an operational forecaster and shift
>leader in the WA Regional Office and a four year period assisting the Saudi
>Arabian Meteorology And Environmental Administration with the development
>of their National Weather Services.
>
>Those attending the meeting will need to register on arrival with at either
>Basement Level 1 in the carpark, or on the ground floor, and will be
>directed to the meeting room. 
>
>Parking: available in nearby streets, or in the basement of 300 Elizabeth
>St (entrance off Mary Street - the closest downramp to Foveaux St). Parking
>must be booked by contacting Andrew Treloar at the Bureau (02 92961524 or
>a.treloar at bom.gov.au) prior to the date of the meeting and giving your
>registration number and driver's name.
>
>Enquiries to:
>
>Andrew Treloar, Bureau of Meteorology (Acting Secretary) 
>Work: (02) 9296 1524 
>e-mail: a.treloar at bom.gov.au
>
>------------------------------------------------------------------------------
>Dr Neil Holbrook
>Chair, Australian Meteorological and Oceanographic Society (AMOS)
>	Sydney Centre
>Division of Environmental and Life Sciences   E-mail: amos at penman.es.mq.edu.au
>Macquarie University       Phone:  +61 (0)2 9850-8429
>North Ryde  NSW  2109.     Fax:    +61 (0)2 9850-8428
>Australia.                 WWW:    http://atmos.es.mq.edu.au/AMOS/
>------------------------------------------------------------------------------

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

--------------------------------------------------------------------------------------
002

Date: Wed, 17 Feb 1999 21:43:30 -0800
From: Lindsay [writer at lisp.com.au]
X-Mailer: Mozilla 3.0 (Win16; I)
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Another Dangerous swell running - NSW
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

G'day Michael,

That's cool :-) I used to surf a lot when I lived in Sydney and had a
van  at Ulla Dulla too. Geez, we had some good out to sea lighting shows
down there. I think it can be a bit of a macho cultural thing in surfing
to underestimate  the size of waves, which when you think of it is no
better than the other extreme. The surfing culture often discounts face
size coz in Hawaii its always the back of the wave, ie: as you watch
from the cliff tops or are sitting on your board, you measure the drop
from the peak to the water level at the back of the wave rather than the 
"suck up" section on the face of the wave. Apparently this gives a rough
idea of the actual swell size rather than the wave face size which is
much bigger as the water is sucked off the reef or sand bank immediately
in front of it exaggerating its size.

Michael Scollay wrote:
> 
> 'twas a bit difficult to get behind the waves to measure the back of
> them:-) I nevertheless had a good view from both the front and sides.
> Height was measured from video taken being the multiple of a crouched
> surfer's height (~1m) divided into the trough to peak height before
> the wave began breaking. 6m was average, but the best of them were
> well over 8m. By taking into account that the surfers were cowering
> more, I used an estimate of 0.8m for the surfer's height instead
> giving a linear height multiple of 10x for these monsters.
> 
> Michael Scollay

--------------------------------------------------------------------------------------
003

From: "Terry Bishop" [dymprog at mpx.com.au]
To: "Aussie-weather" [aussie-weather at world.std.com]
Subject: aus-wx: Orange Weather
Date: Thu, 18 Feb 1999 09:04:27 +1100
X-Mailer: Microsoft Outlook IMO, Build 9.0.2212 (4.71.2419.0)
Importance: Normal
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi All,

Another clear blue sky. A very chilly day. The cold front has hit.

At 09.00.am at Orange 15C, 10C, 1007, WSW 20-30 Kmh
                            |
                        wind chill


Nooowww, where did I store those jumpers?
                            

 Terry.

mailto:dymprog at mpx.com.au

--------------------------------------------------------------------------------------
004

Date: Thu, 18 Feb 1999 15:36:28 +1000
From: Ross Portas [rportas at mindless.com]
X-Mailer: Mozilla 4.5 [en] (Win98; I)
X-Accept-Language: en
To: "aussie-weather at world.std.com" [aussie-weather at world.std.com]
Subject: aus-wx: For Those Without Scanners
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi everyone,

Just got some photos developed from Rabbit Photo, and was told they have
a service where they will scan your roll of film onto a floppy disc in
jpg format. The cost for the roll of 24 I had done was $5.70, I think.
(thats just the extra for the scanning, not the total price).

Scary thing is that the scanned pics look better than the prints, due to
the overexposure that photo labs usually do on cloud photos.

Hope thats usefull information for some of you out there.

Cheers,
Ross from Brisbane.

--------------------------------------------------------------------------------------
005

Date: Thu, 18 Feb 1999 19:47:25 +1100
From: Keith Barnett [weather at ozemail.com.au]
X-Mailer: Mozilla 4.5 [en] (Win95; I)
X-Accept-Language: en
To: "aussie-weather at world.std.com" [aussie-weather at world.std.com]
Subject: aus-wx: Possible sea breeze front in Sydney?
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

As Sydney and nearby people will know we have had a fairly major
southern outbreak. Initially it was from the west or southwest but this
afternoon coming home early I noticed a line of high based cumulus
stretching northeast-southwest. It was quite scattered but formed over
coastal suburbs and in the following 2 hours or so gradually moved
westward passing over Seven Hills about 4pm. I left the Sydney CBD at
2.15pm at which time the wind had just turned southeast. Reaching Seven
Hills it was still a dry southwesterly but turned southeast as I was
coming home in the bus.
Was this a seabreeze superimposed on a change in the gradient wind (the
barometer started rising again)? Or just the usual change of wind we
often get?
The reason I think it's a seabreeze is that there was no cloud over
inland suburbs at the time and at present there has been none of the
usual low cloud increase that follows a southeast change.
I have never observed seabreeze fronts in Sydney mainly because I'm in
the office all day usually..

--------------------------------------------------------------------------------------
006

X-Sender: jimmyd at pop.ozemail.com.au
X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1
Date: Thu, 18 Feb 1999 21:38:21 +1100
To: aussie-weather at world.std.com
From: Jimmy Deguara [jimmyd at ozemail.com.au]
Subject: Re: aus-wx: Possible sea breeze front in Sydney?
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi Keith

Jimmy here,

>From your observations which I observed Keith, I have to say it is a
typical cooler change or change in wind direction which has happened. I can
give you a link of a couple of examples. Check out:

http://www.australiansevereweather.simplenet.com/photography/photos/1996/102
9jd01.jpg

which is almost a repeat of what happened today. The change moved through
earlier with drier air but then the change in dirction occurred marked with
the cumulus along the boundary.

This is what a typical cloud affected sea breeze front looks like

http://www.australiansevereweather.simplenet.com/photography/photos/1995/022
3jd02.jpg

http://www.australiansevereweather.simplenet.com/photography/photos/1993/122
4jd01.jpg

As soon as I observed the cumulus, that is what I thought would happen.
Having said this, you can't rule out the SE breeze mixed into the SE
change. Usually with a sea breeze effect, you will get stratocumulus
developing over the mtns and moving towards the coast during the evening.
Even the smoke was moving E but gradually began to move N. A sea breeze
effect would have moved that smoke closer towards the coast one would
expect.... So I do think it was a SE wind shift. It would be interesting to
see what happens tomorrow ie if the winds come from the SW all day or
remain from the SE...

Jimmy Deguara

At 07:47 PM 2/18/99 +1100, you wrote:
>As Sydney and nearby people will know we have had a fairly major
>southern outbreak. Initially it was from the west or southwest but this
>afternoon coming home early I noticed a line of high based cumulus
>stretching northeast-southwest. It was quite scattered but formed over
>coastal suburbs and in the following 2 hours or so gradually moved
>westward passing over Seven Hills about 4pm. I left the Sydney CBD at
>2.15pm at which time the wind had just turned southeast. Reaching Seven
>Hills it was still a dry southwesterly but turned southeast as I was
>coming home in the bus.
>Was this a seabreeze superimposed on a change in the gradient wind (the
>barometer started rising again)? Or just the usual change of wind we
>often get?
>The reason I think it's a seabreeze is that there was no cloud over
>inland suburbs at the time and at present there has been none of the
>usual low cloud increase that follows a southeast change.
>I have never observed seabreeze fronts in Sydney mainly because I'm in
>the office all day usually..

--------------------------------------------------------------------------------------
007

X-Originating-Ip: [203.108.235.79]
From: "Joanne Walker" [jmwalker at hotmail.com]
To: aussie-weather at world.std.com
Subject: aus-wx: Brisbane 
Date: Thu, 18 Feb 1999 03:31:36 PST
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi Jo from Brisbane here
 
Finally, I have reminded myself what lightning looks like when it lights 
up the sky!!  Coming home from a shonky dinner at a cheapo Vietnamese 
place in West End my boyfriend spotted continuous CCs to the east of 
Brisbane.  It only lasted for about half an hour and the tracker only 
registered a few hits but it was enough for me - something is better 
than nothing.  Here is a question though are storms better to watch 
during the day or at night?  I guess it depends on what you enjoy most - 
cloud fromations or lightning strikes.  Personally I cant choose....

--------------------------------------------------------------------------------------
008

From: "Michael Thompson" [michaelt at ozemail.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: Possible sea breeze front in Sydney?
Date: Thu, 18 Feb 1999 21:37:31 +1100
X-Mailer: Microsoft Outlook Express 4.72.3110.1
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

I simply go for the change from a SW wind to SE, this event was observed
from Wollongong as well, although at 2pm.

l have observed many of these in early Spring when initially changes are
often W/SW before swinging SE.

Michael



>As Sydney and nearby people will know we have had a fairly major
>southern outbreak. Initially it was from the west or southwest but this
>afternoon coming home early I noticed a line of high based cumulus
>stretching northeast-southwest. It was quite scattered but formed over
>coastal suburbs and in the following 2 hours or so gradually moved
>westward passing over Seven Hills about 4pm. I left the Sydney CBD at
>2.15pm at which time the wind had just turned southeast. Reaching Seven
>Hills it was still a dry southwesterly but turned southeast as I was
>coming home in the bus.
>Was this a seabreeze superimposed on a change in the gradient wind (the
>barometer started rising again)? Or just the usual change of wind we
>often get?
>The reason I think it's a seabreeze is that there was no cloud over
>inland suburbs at the time and at present there has been none of the
>usual low cloud increase that follows a southeast change.
>I have never observed seabreeze fronts in Sydney mainly because I'm in
>the office all day usually..

--------------------------------------------------------------------------------------
009

From: "Michael Thompson" [michaelt at ozemail.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: For Those Without Scanners
Date: Thu, 18 Feb 1999 21:49:16 +1100
X-Mailer: Microsoft Outlook Express 4.72.3110.1
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

I am curious if they scan off the negative or print. If they scan off the
negative then you get what you exposed for. I have reservation about slide
scanners though, I did play with one once and it worked great with slides,
but choked at negatives, whilst slides are slides regardless of company,
negatives are not a finished article and different companies ( Kodak, Fuji,
Agfa , etc ) use different emultions, thus scanning negatives is tricky.

Michael

-----Original Message-----
>Hi everyone,
>
>Just got some photos developed from Rabbit Photo, and was told they have
>a service where they will scan your roll of film onto a floppy disc in
>jpg format. The cost for the roll of 24 I had done was $5.70, I think.
>(thats just the extra for the scanning, not the total price).
>
>Scary thing is that the scanned pics look better than the prints, due to
>the overexposure that photo labs usually do on cloud photos.
>
>Hope thats usefull information for some of you out there.
>
>Cheers,
>Ross from Brisbane.

--------------------------------------------------------------------------------------
010

Date: Thu, 18 Feb 1999 22:14:57 +1100
From: Ben Quinn [Bodie19 at eisa.net.au]
X-Mailer: Mozilla 4.5 [en] (Win95; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Brisbane
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hey Ben from Brisbane here..

I saw this storm this afternoon when it was off the coast near Ballina,
and i'm in Redcliffe .. north of Brisbane .. and for me to see a storm
that far away, it has to be a MONSTER! and that it was! i saw one of the
thickest and largest overshoots i've seen in years! a classic textbook
supercell.  This storm appears to have been going for at least 6 hours
or more now, Redcliffe is a bayside suburb .. and i've been able to see
lightning from the storm since about 7pm tonight (although the lightning
tracker hasn't registered most/any of the strikes for some strange
reason) and it's still going off as i speak (although it seems to be
winding down) with up to 6 or more strikes per second earlier.. but
averaging about 2 strikes per second mostly.. The last time i can
remember a lightning show like this was the night of October 13, after
the Brisbane Supercell (although that storm was further off the coast,
and was moving away fairly quickly, and this storm seems to be moving
almost parallel to the coast, and reasonably slow at that)

Great stuff
 
Joanne Walker wrote:
> 
> Hi Jo from Brisbane here
> 
> Finally, I have reminded myself what lightning looks like when it lights
> up the sky!!  Coming home from a shonky dinner at a cheapo Vietnamese
> place in West End my boyfriend spotted continuous CCs to the east of
> Brisbane.  It only lasted for about half an hour and the tracker only
> registered a few hits but it was enough for me - something is better
> than nothing.  Here is a question though are storms better to watch
> during the day or at night?  I guess it depends on what you enjoy most -
> cloud fromations or lightning strikes.  Personally I cant choose....