Author Topic: NSW/QLD Showers/Storms 26-30 Sep 2007  (Read 30135 times)

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Offline Michael Bath

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RE: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #15 on: 29 September 2007, 08:06:27 AM »
Hi Shauno, pretty disappointing here though was still good to be able to see the main storm through the haze. Dry with not a cloud in sight today !

David C - you might have to email the BoM about that. I agree the mesocyclone does not appear to be strong. There is a much stronger meso shown from one of the storms on 8th November last year but can't find the image again (on BoM radar pages somewhere)


Marty Pouwelse has a gallery and descriptions here


These photos taken by Dave Sercombe:

N of Beaudesert: 01 02 03
Logan Village: 04 05 06 07

Jonty Hall posted some photos taken from just north of Boonah looking south: 01 02 03 04

These by Neil of Kalbar (near Boonah) looking south: 01 02 03

Regards, Michael


« Last Edit: 04 October 2007, 03:50:06 AM by Michael Bath »
Location: Mcleans Ridges, NSW Northern Rivers
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Offline David C

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RE: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #16 on: 29 September 2007, 08:43:03 AM »
Some very nice shots of the base there, nicely separated.

Looking at the sounding, upward momentum would have come to an abrupt halt aoa 9km - there is no way those storms were going much above that, ie low-topped for that part of the world for 'warm-season' storms :) I'm assuming copious quantities of small hail were the result rather than large to giant hail?

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Offline Michael Bath

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RE: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #17 on: 29 September 2007, 08:55:47 AM »
Don't know yet - only been one report of hail mentioned and that was from when the storm was much further downstream north of Coomera.
MB
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Offline Steven

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RE: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #18 on: 30 September 2007, 08:50:21 AM »
Some pulse storms formed around the Wide Bay Burnett region early this morning, moving a fast pace, it took me by surprise that it happened so early in the morning (6:00am) although they lasted a couple of hours, it all cleared out by about 9:00. More are possible in this area, although now nothing has got kicking, but I think moisture is too shallow, typical of spring storms.

Offline Jimmy Deguara

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Re: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #19 on: 01 October 2007, 03:18:18 PM »
Hi David,

Quote
I'm assuming copious quantities of small hail were the result rather than large to giant hail?

Not so sure. Apparently, there was a media report of 5cm hail but I never heard this report - it came from a second hand source.

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Jimmy Deguara
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Offline Macca

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Re: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #20 on: 03 October 2007, 01:00:57 AM »
Hi all,

Just with regard to the supercell noted above, I did hear some unconfirmed reports of hail up to 7cm. 

On another note, I had my first chase of the season on Saturday.  A weak surface trough sat through the Wide Bay district of SE QLD and was there long enough to drag some shallow moisture inland and kick off some storms.  A little upper trough helped the situation with -14 to -15C at 500mb moving into the area. 

I headed N from Brisbane and was in Gympie by early afternoon but it looked too dry with the trough seemingly sitting right over/just N of town.  So I headed N to Maryborough and from there I headed west towards some showers which had popped up on radar. I got as far W as Aramara before I could see what looked to be possibly the crummiest anvil I have ever seen off to my WSW. Road options are limited in this area but I headed further W before taking the Bauple - Woolooga Rd south for about 10-15km to near Gigoomgan or thereabouts where i stayed for the next hour listening to the Cats smash Port Adelaide in the footy and watching as this cell grew (ever so slowly). There was infrequent thunder the whole time but it wasn't until it hit the sea breeze that it actually started to look like a storm. It developed a nice little base and pushed out a weak guster but the most intense part was passing just to my S. I could see another cell to the SW of this one so I decided to core punch this cell and position myself for the next cell (starting to edge closer to home too...). I encountered some nice heavy rain and some gusty winds but nothing too special.

After I got through this cell, the next cell was starting to look quite good. The tops were very low (28,000ft at a guess) and the bases were realtively high (5-6k ft) but it had nice structure and looked like it would hang about for a while. I got some photos of the structure as the sun set and then headed S to get closer to it for some lightning photos. Again the roads and trees dictate where you can and can't stop for pics but I eventually found somewhere to stop when I was about 2km from the storm...I snapped on the 10-22mm wide angle and started shooting 1.5-2 second exposures and this cell just UNLEASHED right in front of me. Every 20-30 seconds a CG would explode out in front of the storm and land somewhere between 1 and 3km away from me (the pics look further as they were taken at 10mm...hehe). This little show lasted about 10 minutes - long enough for me to bag a few nice photos with enough daylight left to get some structure as well as the lightning. I was going to head S to the Kilkivan - Gympie road and head east to get in front of this cell but it went ENE and I ended up sitting to its SW as it moved off towards Tiaro (as others have mentioned). When the anvil rain stopped, I managed to score a few crawlers out of the back end.

A phone call to Anthony C/Dave S (who were also chasing) had us focusing on the new cells developing to the W of Goomeri. After some deliberation, I booted it back to the west in the hope I could find a clearing near Kilkivan before the storm got there. The twisty roads in that area are crazy for trying to keep your bearings but I managed to get into Kilkivan before the storm - just. I set up for lightning and managed to score some very nice CG's hitting the hills which sit about 1-2km W of town before the precip started - it was only light but it was annoying enough to have to stop taking pics. As luck had it yesterday, this cell weakened and moved off to the E and the rain cleared off just as the next cell in the line moved closer to Kilkivan. I ended up staying in the same spot for over half an hour taking lightning pics and listening to the deep cracks of thunder. Eventually one cell got going enough to mow over the town but not before blasting the hills with more CG's. I was feeling quite vulnerable standing in the middle of a footy oval next to two power poles...even more so when a CG hit the hills but pushed out a branch which landed in the town about 800m from me causing a spectacular green glow and taking out the town's power (there is a photo of this...hehe). Just as I was packing it in, Anthony/Dave turned up and we stayed there for another few minutes before trying to get east of the cells. We had some trouble doing this as they moved just N of the east-west aligned road so we were enveloped in precip. We had about 2 minutes at one location where it wasn't raining and there was only 1 more CG from this cell and  it was quite nice.

We noticed more cells developing along the trough to the W and NW but it was starting to get late and we decided to call it a night. A quick stop in Gympie to re-fuel before heading back down the Bruce Hwy to Brisbane (~650km).

Overall, quite a successful chase. My first real chase of the 2007/08 season. I was a little worried earlier on when I was watching that one lone storm which was barely even that but true to form, patience and faith in ones forecast paid off.

Pics hereā€¦ http://macca.bsch.au.com/gallery/album20

Macca

(There are also some other pics from the Sunshine Coast flood event from August on my 2007/08 gallery if anyone is interested).

Offline Shaun Galman

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Re: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #21 on: 03 October 2007, 05:11:35 AM »
Hi Macca,
Those shots are amazing! It's good to see someone capturing lightning shots so early in the season, particularly with some nice cloud structure also.

What time did you start seeing those CG? You said "after sunset" so I would guess around 7-8pm, is that right? An ideal time for Lightning photography thats for sure! :)

I think we're all praying for decent moisture content with a broad trough to show up in the next week or so? It would be nice! ;)

Cheers and take care.
Shauno
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Offline Karina Roberts (slavegirl)

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Re: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #22 on: 03 October 2007, 06:04:43 AM »
Awesome pics! I have a couple of the storm that cruised by Coomera on 27th Sep taken from my mates place at Carrara. This storm only just missed us but put out a nice lightning show after dark out to sea.


« Last Edit: 03 October 2007, 08:55:13 AM by Michael Bath »
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Offline Steven

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Re: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #23 on: 03 October 2007, 06:01:01 PM »
Oh my god, those are fantastic slavegirl23! I have never seen anything like it, your very lucky to capture the beauty of cloud formations, well done!

Offline Michael Bath

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Re: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #24 on: 04 October 2007, 02:28:35 AM »
Here's the radar loop for the events described in Macca's post.

Gympie 128km
Location: Mcleans Ridges, NSW Northern Rivers
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Offline Steven

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Re: NSW/QLD Showers/Storms 26-30 Sep 2007
« Reply #25 on: 04 October 2007, 06:18:17 AM »
I must say, I did spot lightning from to the north from around 8:40 to 9:30, but unfortunately we received nothing from those storms. The next day, a few isolated but weak storms developed just west of us, its anvil spread right over, I went out to have a look, and more updrafts were occurring to the S/SW but this soon collapsed, also there were strong gust winds at the same time these storms were developing, I think this wind might have been inflows. Ha ha, Slavegirl has the exact same camera as I do, isn't that a coincidence?