From                                           Subject
--------------------------------------------------------------------------------------
001 John Woodbridge [jrw at pixelcom.net]             Silent Sentinels - Volcanoes & Climate...
002 wbc at ozemail.com.au (Laurier Williams)          Late-season heatwave in Central Australia
003 Andrew Wall [astroman at chariot.net.au]          Late-season heatwave in Central Australia
004 Matt Smith [disarm at braenet.com.au]             Late-season heatwave in Central Australia
005 "Ben Tichborne" [tich at netaccess.co.nz]         Blocked weather patterns over NZ/NZ Budget - MetService sale
006 Ben Quinn [bodie at flatrate.net.au]              Silent Sentinels...
007 "Mark Hardy" [mhardy at nsw.bigpond.net.au]       Jet Stream charts now on Weather 21
008 Anthony Cornelius [cyclone at rmitel.com.au]      Forecasting of CAPE + Understanding Skew-T's Page
009 Ben Munro [benjamin at biosys.net]                Silent Sentinels...)
010 "Paul Graham" [v_notch at hotmail.com]            Squall Line heading towards Adelaide?
011 Anthony Cornelius [cyclone at rmitel.com.au]      Squall Line heading towards Adelaide?
012 "Jane ONeill" [cadence at rubix.net.au]           Melbourne cold outbreak update
013 "Paul Graham" [v_notch at hotmail.com]            Squall Line heading towards Adelaide?
014 Andrew Wall [astroman at chariot.net.au]          Adelaide Goes Off

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

From: John Woodbridge [jrw at pixelcom.net]
To: "'aussie-weather at world.std.com'" [aussie-weather at world.std.com]
Subject: RE: aus-wx: Silent Sentinels - Volcanoes & Climate...
Date: Sat, 22 May 1999 01:38:46 +1000
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Hi Michael & Ben,

There does seem to be ample evidence that even quite small eruptions can 
put enough dust/ash in the air to have significant effects on the short 
term (<10 yrs) climate.  Moreover, the onset of these effects are quite 
sudden.

On the scale of things, the Aukland Museum states that the World's largest 
eruption in historic times (last 5,000 years) is the Lake Taupo ignimbrite 
eruption approx 1800 yrs ago which ejected 110 cubic km of ash, totally 
devastating 20,000 sq km of the North Island - an area now populated with 
over 200,000 people.  This compares to Krakatoa in 1883 at just 8 cubic km 
and Mt. St. Helens in 1980 at 3 cubic km...

Their literature goes on to mention that the Worlds Largest known eruption 
was also from Lake Taupo (anyone who thought this was a large placid lake - 
forget it), approx 26,500 years ago, when it ejected an estimated 800 cubic 
km of ash in a single eruption.  (And for our NZ friends, yes this is still 
an active Volcano despite appearances...  the lake is the massive caldera).

It has been estimated from records that the 1883 Krakatoa eruption 
generated enough condensation nuclei to provide 1,000 world wide rainy 
days.  One can only speculate on the effects on weather & short term 
climate that the Lake Taupo eruptions must have had.

John W.

-----Original Message-----
From:	Michael Thompson [SMTP:michaelt at ozemail.com.au]
Sent:	Friday, 21 May 1999 22:57
To:	aussie-weather at world.std.com
Subject:	Re: aus-wx: Silent Sentinels...

I often wonder if there are triggers that lead to periods of increased
volcanic activity. It amazes me that there are lava fields SW of Melbourne
around Warrnambool and Colac, these were active only 15,000 years ago. On
the earth clock that is nothing.

In the mid west of the USA hundreds of kilometres east of the nearest
volcanoes there are ash deposits several feet thick, what affect must that
eruption had on the worlds climate.

Michael


> Did a bit of reading today in-between classes on this subject.. found a
> couple of interesting bits and pieces..
>
> As long ago as 1500 BC the eruption of Santorini in the Aegean sea was
> followed by a pronounced global cooling..
>
> Probably the most famous eruption was Tambora in Indonesia in April
> 1815..  This eruption was followed in Europe by "The year without a
> summer".. In this year temperatures at Madras in India unusually passed
> below freezing on several occasions..
>
> More recently in 1982 the eruption of El Chicon in Central America was
> followed by a marked global cooling..
>



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002

From: wbc at ozemail.com.au (Laurier Williams)
To: aussie-weather at world.std.com
Subject: aus-wx: Late-season heatwave in Central Australia
Date: Fri, 21 May 1999 15:47:47 GMT
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The duration of the heatwave (warmwave?) in northern SA and around the
SA/NT border is quite unusual. For 8 consecutive days now, the maxima
in this area have been 8 to 12 above the May average, and as it's the
middle of the month, that figure would be pretty close to the day
average in a month where the "true" average drops rapidly through the
month. 

The stations with the greatest positive departure from normal max temp
over the past 8 days have been:

14th  Kulgera (on the SA/NT border south of Alice Springs) 30.5 (+8.2)
15th Alice Springs AP 31 rounded (+8.2)
16th Alice Springs AP 32 rounded (+9.2)
17th Alice Springs AP 32 rounded (+9.2)
18th Kulgera 33.5 (+11.2)
19th Kulgera 33.5 (+11.2)
20th Marla (about 200km S of Kulgera) 34.7 (+12.0)
21st  Ulara 32 rounded (+9 rounded)

Do your records extend to duration of off-season warmwaves, Blair?

BTW, for those that don't know, I keep a daily record of the highest
rainfalls, highest and lowest max and min temps, and greatest positive
and negative departures from average for max and min temps in the
Almanac, accessed off the Australian Weather Links and News front
page. Great for those interested in trivia and cricket scores!

-- 
Laurier Williams
Australian Weather Links and News
http://www.ozemail.com.au/~wbc/
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003

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Date: Sat, 22 May 1999 07:30:47 +0900
To: aussie-weather at world.std.com
From: Andrew Wall [astroman at chariot.net.au]
Subject: Re: aus-wx: Late-season heatwave in Central Australia
Sender: aussie-weather-approval at world.std.com
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Hi all,

Not sure if this email will get through, if anyone has radar access can you
please send me radar images of Adelaide at approx 6:50am local time, we
just had a small t/storm here with heavy falls of rain, this rain was
associated with the second cold front that was supossed to have moved
through here later on today (22/5/99). I only saw one bit of sheet
lightning and heard one clap of thunder about 5 seconds afterwards. On Am
radio there have been heaps of activity with static, so i guess most of it
is out of eye reach. 

My account for the internet has expired so cannot get on for a while, will
try to re-connect today if possible....

thanks heaps, radar loops are fine too 
Andrew Wall
(08) 82854590

S.A. / N.T. Co-ordinator.
S.A. Lightning Page - http://lightning.virtualave.net
ASWA Inc. Webpage   - http://severeweather.asn.au

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004

X-Sender: disarm at mail.braenet.com.au
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Date: Sat, 22 May 1999 08:10:08 +1000
To: aussie-weather at world.std.com
From: Matt Smith [disarm at braenet.com.au]
Subject: Re: aus-wx: Late-season heatwave in Central Australia
Sender: aussie-weather-approval at world.std.com
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Hi Andrew

About 2 minutes befire i recieved your email i was looking at the radar
over adelaide (adelaide radar was broken so i was using the Mildura Broad
scale) Ive saved the loop for anyone who wants it, it showed a large area
of yellow right over adelaide with a few spots of pink and green. The local
Adelaide loop would have been great to look at if it was working, but the
Mildura is better than nothing!

Matt Smith
>Hi all,
>
>Not sure if this email will get through, if anyone has radar access can you
>please send me radar images of Adelaide at approx 6:50am local time, we
>just had a small t/storm here with heavy falls of rain, this rain was
>associated with the second cold front that was supossed to have moved
>through here later on today (22/5/99). I only saw one bit of sheet
>lightning and heard one clap of thunder about 5 seconds afterwards. On Am
>radio there have been heaps of activity with static, so i guess most of it
>is out of eye reach. 
>
>My account for the internet has expired so cannot get on for a while, will
>try to re-connect today if possible....
>
>thanks heaps, radar loops are fine too 
>Andrew Wall
>(08) 82854590
>
>S.A. / N.T. Co-ordinator.
>S.A. Lightning Page - http://lightning.virtualave.net
>ASWA Inc. Webpage   - http://severeweather.asn.au
>
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> -----------------------jacob at iinet.net.au------------------------------
>
>
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005

From: "Ben Tichborne" [tich at netaccess.co.nz]
To: [aussie-weather at world.std.com]
Subject: aus-wx: Blocked weather patterns over NZ/NZ Budget - MetService sale planned
Date: Sat, 22 May 1999 10:35:24 +1200
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 A big intense high has sat over most of NZ for a whole week; consequently
no interesting weather of note. However, last Sunday saw a spell of
northwesterly gales over central areas and some heavy rain in the west.
This storm was the renmant of the storm/cold outbreak over SE Australia -
however no cold outbreak affected NZ, and the high moved in pretty quickly.
Interestingly, all of the previous week was dominated by a warm northerly
airflow, with temperatures often  20 Celsius + in eastern areas (the week
before brought wintry southerlies!).

 BTW, the NZ Government has signalled its intention to sell MetService in
this weeks Budget. However, the election is coming up this year. Labour is
currently ahead in the opinion polls, and I don't think it would be too
keen on more asset sales.

Ben Tichborne
Christchurch
NZ
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006

Date: Sat, 22 May 1999 08:56:51 +1000
From: Ben Quinn [bodie at flatrate.net.au]
X-Mailer: Mozilla 4.6 [en] (Win95; I)
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To: aussie-weather at world.std.com
Subject: Re: aus-wx: Silent Sentinels...
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hey Ben from Brisbane here..

We actually have a group of dormant volcanoes approx 50k's NW of
Brisbane, wich we call "The Glasshouse Mountains".. although i think
they have been innactive for a bit more than 15 000 years, i think more
like a few million.. The lava flows from these volcanoes are found a
fair distance away from them (i guess) in Kingaroy and further west, and
also the City i live in - "Redcliffe" - is actually situated on an old
lava flow, and where the lava met the ocean we have these medium/large
Red Cliffes.. hence the name :)

Weather in Brisbane at the moment is almost showery at times, i've had
more showers in the past 24-36 hours than i did in the period that we
were expecting rain a few days ago.. 35mm here in the 24 hours to 9am
thismorning.. approx 25mm falling from wednesday morning to friday
morning.. bring my total to 60mm in 4 days, while some places north of
me have had falls in excess of 300mm in the same 4 days :(


Michael Thompson wrote:
> 
> I often wonder if there are triggers that lead to periods of increased
> volcanic activity. It amazes me that there are lava fields SW of Melbourne
> around Warrnambool and Colac, these were active only 15,000 years ago. On
> the earth clock that is nothing.
> 
> In the mid west of the USA hundreds of kilometres east of the nearest
> volcanoes there are ash deposits several feet thick, what affect must that
> eruption had on the worlds climate.
> 
> Michael
> 
> > Did a bit of reading today in-between classes on this subject.. found a
> > couple of interesting bits and pieces..
> >
> > As long ago as 1500 BC the eruption of Santorini in the Aegean sea was
> > followed by a pronounced global cooling..
> >
> > Probably the most famous eruption was Tambora in Indonesia in April
> > 1815..  This eruption was followed in Europe by "The year without a
> > summer".. In this year temperatures at Madras in India unusually passed
> > below freezing on several occasions..
> >
> > More recently in 1982 the eruption of El Chicon in Central America was
> > followed by a marked global cooling..
> >
> 
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007

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From: "Mark Hardy" [mhardy at nsw.bigpond.net.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: Jet Stream charts now on Weather 21
Date: Sat, 22 May 1999 13:53:07 +1000
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Michael
Thanks for the feedback. We've decided to go with a simplified jetstream to
show viewers the movement of upper systems and also to help the explanation
of system movement and development, northwest cloud bands, blocking highs
and so on. Glad to hear you like it. Will be more or less easing these in to
allow the presenters time to understand the concepts. Should be a regular
feature soon.

Would like to also have a graphical warnings system and we are talking to
BoM about this. For it to be effective it really needs to be a automatic
system. In the US warnings are coded with county numbers and/or lat/lon
watch boxes. Both of these can easily be converted into a graphical display.
We have suggested to the BoM to add a line in their warnings message which
contains district numbers or another coded form of warning area description.
This is concept is currently being considered internally. Once this is
provided within the warning in a consistent format we will implement
graphical warnings.

Thanks again, Mark

-----Original Message-----
From: Michael Thompson [michaelt at ozemail.com.au]
To: aussie-weather at world.std.com [aussie-weather at world.std.com]
Date: Friday, 21 May 1999 22:50
Subject: aus-wx: Jet Stream charts now on Weather 21


|Just noticed a new jet stream chart on weather 21, great stuff. The chart
is
|not as complex as those on the US models, but is an advantage if you have
to
|chase and run, or you want to get a quick overview.
|
|I hope the next step is some sort of weather warnings charts with say areas
|under a severe storm advice shaded, like the US weather channel.
|
|If you are reading this Mark, keep up the good work.
|
|Michael Thompson
|http://thunder.simplenet.com
|
|
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| message.
| -----------------------jacob at iinet.net.au------------------------------

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008

Date: Sat, 22 May 1999 15:20:37 +1000
From: Anthony Cornelius [cyclone at rmitel.com.au]
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To: aussie-weather at world.std.com
Subject: Re: aus-wx: Forecasting of CAPE + Understanding Skew-T's Page
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi all,

Thanks for all the compliments everyone, it was much appreciated!  I
actually didn't think that many people would read the page...

I do hope that everyone learnt something from it...especially in regards
to CAPE vs surface moisture.  I don't think many people realise just how
critical this is in regards to stability in the atmosphere.  It
certainly does seem like a hard concept to grasp, but the main aim is to
get the air to cool at the SALR (slower rate) very quickly.  As if an
air parcel is cooling at a slower rate, then as it rises, it's more
likely going to be warmer then the surrounding environment as it rises. 
This gives the added CAPE...you have to remember that CAPE is Convective
Available POTENTIAL Energy...if there's a large cap at the surface, then
that potential energy is going to be wasted.

A few nights ago I caused quite a stir in #Weather proposing that on
"high cap, dp, temp" days could create CAPE values in excess of 4000 -
however this would be an extreme example (eg, low-mid 30's at the
surface, with a DP in the high 20's) - but it really is quite possible
(and I'm fairly confident that it has happened many times before) at a
more frequent level would be CAPE's near the 2000-3000 range - for
exmaple, 32C/23-24C+ DP.  I was talking to a few Americans today, and
they all concurred with me - the plains in the US often exceed 5000+
CAPE's, but convection is inhibited by an 850-900mb flow from the
desert, which causes "caps from hell."

This is really an analogous setup to SE QLD, a W'ly at the surface
brings in huge temperature inversions, and ultimately lead to very
strong caps.  One also has to remember that to the W of us, the terrain
is generally higher, and wind coming from them would actually be around
our 900mb level, and if it's in the high 30's out there, that explains
the presence of some of the huge inversions that we've experienced.

There are some things that can break the cap though (besides adding more
moisture/heat at the surface, or cooler air at the cap level) ...such as
cold fronts, convergence, confluence and orographic lifting.  This has
also made me think about some of the setups we have in SE QLD, such as
on high cap days, only the ranges appear to have thunderstorms form, and
some of these look EXTREMELY strong, and they generally maintain their
intensity and then they move off the range and collapse!  One of my
thoughts that was, the orographic lifting from the mountain assisted in
breaking the cap, it allowed for quick explosive development as it rose
through the atmosphere, but then as it moved off the mountain, the
orographic lifting was no longer present, and the updraft (while a small
updraft would still be able to be maintained by the storm) was no longer
able to break through the cap.  What I mean is that, no new development
could occur, and certainly if you don't have the shear (which we rarely
have on highly capped days) it won't have the organisation to continue,
and with the small updraft, the downdraft will very quickly take over
the thunderstorm, and it will collapse very quickly.

Does anyone have any thoughts on this?  Certainly any chance of a
flanking line forming, would be diminished if the cap couldn't be
broken.  Or, are we just talking lack of shear here in these situations?
(which is another vital factor in these situations)  A classic "Darwin
Syndrome" where thunderstorms structually look strong, and momentarily
become severe, but collapse quickly without the presence of a mid-upper
level jet. 

Anthony Cornelius

Laurier Williams wrote:
> 
> On Fri, 21 May 1999 11:40:46 +1000, Anthony Cornelius
>  wrote:
> 
> > I've
> >done a small webpage on how you can create a CAPE forecast using
> >forecast Skew-T's -
> 
> Small. SMALL?!?
> 
> You've put a lot onto that page, Anthony, and it really is a great
> explanation of a complex area. And with aussie examples, too. Well
> done!
> 
> Laurier Williams
> Australian Weather Links and News
> http://www.ozemail.com.au/~wbc/
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009

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Date: Sat, 22 May 1999 16:58:00 +1000
To: aussie-weather at world.std.com
From: Ben Munro [benjamin at biosys.net]
Subject: Volcanoes (was Re: aus-wx: Silent Sentinels...)
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Actually, I think the Glass House Mountains are the most recently active
volcanoes in Australia. More like 5-10,000 years ago than millions. They
are definitely of a similar age to the ones in SW victoria.

Ben from Sydney


At 08:56 22-05-99 +1000, you wrote:
>
>Hey Ben from Brisbane here..
>
>We actually have a group of dormant volcanoes approx 50k's NW of
>Brisbane, wich we call "The Glasshouse Mountains".. although i think
>they have been innactive for a bit more than 15 000 years, i think more
>like a few million.. The lava flows from these volcanoes are found a
>fair distance away from them (i guess) in Kingaroy and further west, and
>also the City i live in - "Redcliffe" - is actually situated on an old
>lava flow, and where the lava met the ocean we have these medium/large
>Red Cliffes.. hence the name :)


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010

X-Originating-Ip: [203.2.193.71]
From: "Paul Graham" [v_notch at hotmail.com]
To: aussie-weather at world.std.com
Subject: aus-wx: Squall Line heading towards Adelaide?
Date: Sat, 22 May 1999 02:23:56 PDT
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Adelaide radar shows a line of persistently high reflectivity moving due 
east towards Adelaide.  Other cells are moving SE.  Satellite pictures show 
cold cloud top temperatures.  Does anyone have information on the situation?
- Paul G.


______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
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Date: Sat, 22 May 1999 19:36:23 +1000
From: Anthony Cornelius [cyclone at rmitel.com.au]
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To: aussie-weather at world.std.com
Subject: Re: aus-wx: Squall Line heading towards Adelaide?
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi Paul,

They've been having heavy showers and local t'storms for most of the
day, Andrew and Kathy (future to be) Wall are out chasing at the moment,
they left about 2hrs ago, and haven't returned to IRC yet.  Certainly a
squall line though, it's been there for a couple of hours now, but only
recently has moved into the range of "accurate radar range" - however,
is it possible that Adelaide's radar (also) overestimates?  They've had
a line of storms over the southern penusila S of Adelaide for the past
hour with pink in them...one would think a flash flood warning would be
issued for that!

Anthony Cornelius

Paul Graham wrote:
> 
> Adelaide radar shows a line of persistently high reflectivity moving due
> east towards Adelaide.  Other cells are moving SE.  Satellite pictures show
> cold cloud top temperatures.  Does anyone have information on the situation?
> - Paul G.
> 
> ______________________________________________________
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012

From: "Jane ONeill" [cadence at rubix.net.au]
To: "Aussie Weather" [aussie-weather at world.std.com]
Subject: aus-wx: Melbourne cold outbreak update
Date: Sat, 22 May 1999 20:25:18 +1000
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I've added charts, radar & photos to the summary of Melbourne's cold
outbreak last Saturday.
http://www.rubix.net.au/~cadence/15_5_99.htm

The synoptic analysis of the October 1998 stormchase written by Clyve
Herbert is also finally up.
http://www.rubix.net.au/~cadence/stormchase98.htm

Jane ONeill
Bayswater, Melbourne
Melbourne Storm Chasers
http://www.rubix.net.au/~cadence

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

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From: "Paul Graham" [v_notch at hotmail.com]
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Squall Line heading towards Adelaide?
Date: Sat, 22 May 1999 03:42:02 PDT
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi Anthony,
It's a shame we can't get RHI images.  Satellite pictures indicate pretty 
cold cloud top temperatures in some of those cells so I don't think it's 
surprising that there is also high radar reflectivity.  It looks like what 
appeared to be a squall line has somewhat weakened and is now moving in the 
same direction as the other cells.
- Paul G.

>From: Anthony Cornelius 
>Reply-To: aussie-weather at world.std.com
>To: aussie-weather at world.std.com
>Subject: Re: aus-wx: Squall Line heading towards Adelaide?
>Date: Sat, 22 May 1999 19:36:23 +1000
>
>Hi Paul,
>
>They've been having heavy showers and local t'storms for most of the
>day, Andrew and Kathy (future to be) Wall are out chasing at the moment,
>they left about 2hrs ago, and haven't returned to IRC yet.  Certainly a
>squall line though, it's been there for a couple of hours now, but only
>recently has moved into the range of "accurate radar range" - however,
>is it possible that Adelaide's radar (also) overestimates?  They've had
>a line of storms over the southern penusila S of Adelaide for the past
>hour with pink in them...one would think a flash flood warning would be
>issued for that!
>
>Anthony Cornelius
>
>Paul Graham wrote:
> >
> > Adelaide radar shows a line of persistently high reflectivity moving due
> > east towards Adelaide.  Other cells are moving SE.  Satellite pictures 
>show
> > cold cloud top temperatures.  Does anyone have information on the 
>situation?
> > - Paul G.
> >
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X-Sender: astroman at chariot.net.au
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Date: Sat, 22 May 1999 23:00:01 +0900
To: aussie-weather at world.std.com
From: Andrew Wall [astroman at chariot.net.au]
Subject: aus-wx: Adelaide Goes Off
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com

Hi All

Here is the story of this afternoon events.  Written by Astrolady (Kathryn)

As some off you know we were online in #weather for most of the day and
like a few off the other people were keeping a close eye on Adelaide Radar.
 Andrew took off earlier in the afternoon to go to our nearest vantage
point (Wynn Vale Lookout) to see if he could see anything.  A negative
response came back about an hour later but a few photos were taken.
Promptly there after Andrew fell asleep on the couch.

I was online while Andrew was asleep, and started to notice that Mallala
was having a bit of rain according to radar, and was getting bigger with
the passing minutes.  Andrew woke up soon after took one look outside and
announced he was headed for the lookout again.  I decided this time I would
go too.  We never made it to the look out until about 3 hrs later.

We decided to grab Andrew's sister Cherelyn so she could come with us, and
going by the direction of the cloud decided to head up into the hills.  I
was spewing that I never left my mobile phone number with the guys in
#weather so that they could keep us updated (this has now been done).  We
went through Gumeracha/Birdwood and turned off just before Mt Pleasant to
head towards Mannum.  In front of us on the road to Mannum were two large
Cumulonimbus but as the sky got darker we saw there wasn't any action in
them, so Andrew turned off onto the road to Murray Bridge.

Murray Bridge had cloudy skies, but there was a fair few breaks and it
wasn't even raining so we gave up on that and decided to take the Freeway
back to Adelaide after getting petrol.  Just before the Stirling/Crafers
turnoff we spotted lightning ahead off us, so we turned off at the next
exit which was Crafers and headed to the Mount Lofty Summit.  On the
freeway we experienced some fog, but nothing like it was when we goto the
lookout at Mt Lofty.  We parked the car and headed out to the lookout area.
 I looked back towards where the car was a just saw orange hazes from the
carpark lights.  Looking out over Adelaide Lights is a great site anytime,
but when it is foggy, and sheet lightning is going off all around you and
you just don't know which way it is coming from it makes for agood
experience.  As we were looking at the light of Adelaide we noticed
lightning down on the horizon and then slowly all the lights went out.  Low
Level dark cloud had passed below us covering the lights.  Couldn't see
anything not even a glimmer.  We decided it was a good time for a toilet
break.  We headed out to have another look when the cloud had passed and it
started to rain by the time Andrew and I had raced back to the car with
Cherelyn just dawdling along it was pissing down.  It was then decided we
would head back to Adelaide via Summit Rd.

That was not a great idea.  It was raining hard and the fog was thick so
much we were doing about 20 going down it for pieces.  This road has no
side barriers, so I had good grip on the door handle :-) about 3 minutes
into the drive down we experienced hail being about .5cm in diameter and
that lasted for another couple of minutes but it wasn't heavy as there was
still alot of rain.  Andrew was relieved when we arrived back in the
suburbs since he was driving.  From there we headed home.

On the way home we saw a few flashes off lighting some looked close but the
Thunder proved otherwise.  Going down Main Nth Road, Cherelyn and I saw an
excellent fork lightning that looked right over Paralowie.  As we were
coming through Parafield the rain was heavy, and lightning was once every
couple of minutes but in all different directions, so we thought we would
check out with the radar and see which way was the best way to head.  We
were shocked to see such a colourful radar to say the least :-)
After a quick chat to the boys in #weather and leaving my mobile number we
headed out again. I told Andrew to head for Gawler but he wanted to go up
to the lookout and have a look.  When we got there Cherelyn and Andrew
jumped out of the car and went and had a look.  Lightning was going off in
different directions, but then it just seemed to die out as quick as what
it came, so after a while they got back in the car and we headed off as we
were leaving the lightning decided to go right over head :-(

We weren't really sure where to head for next so we went through Parafield
(We have an airport there for light aircraft) and saw a bit of lightning.
Anthony phoned me to let us know that it was headed South East.  I told
Andrew this and after I hung up from Anthony the rain was so heavy we just
couldnt' see where we were going and the road had begun to flood, so we
decided against heading back into the hills to follow it, and came home
instead. For the next hour we had heaps of lightning all around us.  The
lightning has now died off and every half hour or so we get a deluge of
rain again.  Unfortunately radar for Adelaide is currently offline, but
looking at Mt Gambiers it looks like things have died down heaps.

All in all a boring night of driving around the country side turned into a
great night full off adventure.  I would just like to thanks the guys for
helping us out and giving us a few hints along the way. 

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