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#1428971 - 26/07/2017 23:46 SA - Series of Cold Fronts July 27 July 31 2017
StormCapture Offline
Weatherzone Addict

Registered: 19/12/2013
Posts: 1649
Loc: Uleybury
Next set of weather events to move through over the next few days with the weekend looking interesting.

With my Bsc starting, I can really get into the weather with more detailed reports to improve my skills.

Starting with tomorrow, we will see some showers affecting the southern areas from the morning before gradually extending north to be around the city areas as of late morning, showers would be patchy as the front passes over us. Northerly winds will slowly shift North-Westerly from the mid morning and remaining at that direction. Can't see too much rain, 1-5mm for Adelaide, 4 to 10mm across the Southern areas and possibly up to 15mm

Saturday you'd think it's spring giving a vigorous cold front to move through with a trough ahead to filter gusty North to North-Westerly winds. A LLJ of 60kts is expected to move through around 10am so winds will be fairly gusty there. The trough will also drag in above to well above temperatures across majority of the state including Adelaide which is expected to make a top of 21, 22 won't be ruled out especially for the northern suburbs including Elizabeth. Some places including Renmark expected to see record temperatures for July, 28 the top for there with the previous record of 26.0 in the 25th 2007.
Winds will turn a westerly with the arrival of the front around 4pm Saturday afternoon bringing a band of rain, possibly heavily in parts with showers to follow alongside cooler conditions. I expect around 2-8mm to fall in the city by 11:50pm Saturday in many gauges.
Sunday a cold pool will drift by also bringing showers and possible hail and thunder to the southern agricultural areas from the morning, most likely across the South Eastern parts of the state. I expect around 4-8mm by 11:50pm

Heavier falls will be observed in the Adelaide hills with gaugings ranging from 25 to 40mm with patches of 50 to 60 possible.

The General Adelaide Area (Elizabeth to Noarlunga) should see 10-20mm by 9am Monday, isolated falls of 20 to 30mm not out of the question if you get hit by decent heavy showers or a train of them.

I can't see too much of a thundery signature on this trough at this stage although it would be nice to get a decent band of storms move in, but make the most of the warmth even though it'll be very windy

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#1428980 - 27/07/2017 09:16 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
poona Offline
Weather Freak

Registered: 06/11/2005
Posts: 285
Loc: 5km NW COULTA Lower Eyre Penin...
A few rumbles , let's see what develops??

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#1428981 - 27/07/2017 09:23 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
teckert Offline
Weatherzone Moderator

Registered: 27/05/2001
Posts: 17531
Loc: NE suburbs, Adelaide, South Au...
yer looks good over your way Poona... plenty of storms actually on the nth section of the trough so wouldnt be surprised if there s the odd bolt in city areas later...

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#1428983 - 27/07/2017 09:31 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Jet entrance Offline
Weather Freak

Registered: 16/12/2015
Posts: 567
Loc: North Brighton, SA
Yes quite thundery along the trough/front atm...
_________________________
"When the storm starts,
The drops start dropping.
When the drops stop dropping
Then the storm starts stopping"
... Dr Seuss

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#1428984 - 27/07/2017 09:47 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Jet entrance Offline
Weather Freak

Registered: 16/12/2015
Posts: 567
Loc: North Brighton, SA
New forecast to come from the BOM shortly adding in storms grin
_________________________
"When the storm starts,
The drops start dropping.
When the drops stop dropping
Then the storm starts stopping"
... Dr Seuss

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#1428986 - 27/07/2017 10:41 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Thunderstruck Offline
Lightning man

Registered: 10/05/2001
Posts: 14872
Loc: Seaford Meadows, SA
Impresive divergence aloft with big uplift from that jet atm, half spring like in nature so no surprise to see the amount of lightning along the front/troughline atm. Mobile pattern, nice and fast = lots of air movement and easier for those storms to develop in a semi elevated fashion.

TS cool

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#1428988 - 27/07/2017 11:11 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Eevo Offline
Weatherzone Addict

Registered: 02/11/2013
Posts: 1615
Loc: Bridgewater
looks good on the radar

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#1428993 - 27/07/2017 12:10 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Werner K Offline
Weather Freak

Registered: 28/11/2011
Posts: 481
Loc: Flinders Park, SA
looks good visually as well. Can see the heavy rain quite clearly.

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#1428994 - 27/07/2017 12:10 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
teckert Offline
Weatherzone Moderator

Registered: 27/05/2001
Posts: 17531
Loc: NE suburbs, Adelaide, South Au...
Structurally impressive

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#1428995 - 27/07/2017 12:16 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Werner K Offline
Weather Freak

Registered: 28/11/2011
Posts: 481
Loc: Flinders Park, SA
raining now with a very LOUD bang here at Kilburn.

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#1428996 - 27/07/2017 12:17 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Eevo Offline
Weatherzone Addict

Registered: 02/11/2013
Posts: 1615
Loc: Bridgewater
i think that bolt hit the CBD

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#1428998 - 27/07/2017 12:25 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
teckert Offline
Weatherzone Moderator

Registered: 27/05/2001
Posts: 17531
Loc: NE suburbs, Adelaide, South Au...
was a nice bolt too....

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#1429005 - 27/07/2017 14:06 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
parklife Offline
Weather Freak

Registered: 27/02/2013
Posts: 77
Loc: Hazelwood Park
It did hit the CBD specifically the crane working on the North Terrace building across from Adelaide Uni. Fortunately I was looking out of the window on the 14th floor at the time it struck, very impressive.

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#1429006 - 27/07/2017 14:23 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Eevo Offline
Weatherzone Addict

Registered: 02/11/2013
Posts: 1615
Loc: Bridgewater
hopefully no one in it at the time.

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#1429008 - 27/07/2017 15:07 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
teckert Offline
Weatherzone Moderator

Registered: 27/05/2001
Posts: 17531
Loc: NE suburbs, Adelaide, South Au...
there are reports of someone hit by a strike down marion way though... although there were no CG strikes recorded in the area, just CC.

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#1429013 - 27/07/2017 15:52 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
berga1987 Offline
Weather Freak

Registered: 04/08/2010
Posts: 339
Loc: Malvern, Adelaide, Aus
Right across from my work, very loud. The one in the CBD that is


Edited by berga1987 (27/07/2017 15:52)
_________________________
I wish Mt Lofty was more lofty, another 2km or so would suffice.

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#1429016 - 27/07/2017 16:06 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: StormCapture]
Werner K Offline
Weather Freak

Registered: 28/11/2011
Posts: 481
Loc: Flinders Park, SA
That clap of thunder which I heard earlier wasn't a sharp whip crack, but a very loud rumble as if something really heavy landed on the ground. It shook the windows in the building. Everyone here agreed that the thunder clap was very loud!

I heard a much, much fainter rumble in the distance about 5 minutes later.

If the loud clap of thunder came from that bolt that struck in the CBD, then a fair chunk of inner Adelaide would probably have heard it as my work is about 8.5km from that crane as the crow flies.

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#1429021 - 27/07/2017 17:11 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: teckert]
Jet entrance Offline
Weather Freak

Registered: 16/12/2015
Posts: 567
Loc: North Brighton, SA
Originally Posted By: teckert
there are reports of someone hit by a strike down marion way though... although there were no CG strikes recorded in the area, just CC.


I saw the bolt and can confirm if CG=a ground strike then 100% true, over Marion shopping Centre around 11:45am as I was walking from my car to an appointment in the area and saw it directly in front of me.
_________________________
"When the storm starts,
The drops start dropping.
When the drops stop dropping
Then the storm starts stopping"
... Dr Seuss

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#1429026 - 27/07/2017 19:35 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: teckert]
Jet entrance Offline
Weather Freak

Registered: 16/12/2015
Posts: 567
Loc: North Brighton, SA
Originally Posted By: parklife
It did hit the CBD specifically the crane working on the North Terrace building across from Adelaide Uni. Fortunately I was looking out of the window on the 14th floor at the time it struck, very impressive.


Originally Posted By: teckert
there are reports of someone hit by a strike down marion way though... although there were no CG strikes recorded in the area, just CC.


Both reports in this article, there was someone in the crane Parklife...
http://www.abc.net.au/news/2017-07-27/adelaide-lightning-strike-leaves-man-in-hospital/8749456
_________________________
"When the storm starts,
The drops start dropping.
When the drops stop dropping
Then the storm starts stopping"
... Dr Seuss

Top
#1429029 - 27/07/2017 20:03 Re: SA - Series of Cold Fronts July 27 July 31 2017 [Re: Jet entrance]
parklife Offline
Weather Freak

Registered: 27/02/2013
Posts: 77
Loc: Hazelwood Park
Originally Posted By: Jet entrance

Both reports in this article, there was someone in the crane Parklife...
http://www.abc.net.au/news/2017-07-27/adelaide-lightning-strike-leaves-man-in-hospital/8749456


Yes JE it seems as though a dogger was hit on the Franklin St site, holding one of the chains. The article mentions that at least another crane was hit, which was the one I was looking at. I was on Grenfell Street looking North towards the crane on North Terrace near Frome Rd.
They have lightning rods on them, so the dogger that was hit must have felt some residual current.

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