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Offline Colmait  
#281 Posted : Sunday, 10 November 2024 6:45:32 PM(UTC)
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Latest STW, Doppler radar with highlighted strong wind gust from the severe cell heading towards Amberley. Radar sweep of storms coming through at 1843


IMG_4460.jpeg

IMG_4461.jpeg


IMG_4459.jpeg
Colin Maitland.
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Aussie Girl on 10/11/2024(UTC)
Offline Colmait  
#282 Posted : Sunday, 10 November 2024 7:09:59 PM(UTC)
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Pretty sure these storms are going to make it all the way to the Coast, to Brisbane and to the North, but BoM still have their magical force field up for warnings. I wonder if anyone is watching this system . I mean for some people it could give them a little bit more time to prepare.

IMG_4463.jpeg
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Aussie Girl on 10/11/2024(UTC)
Offline Colmait  
#283 Posted : Sunday, 10 November 2024 7:13:37 PM(UTC)
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Arghhhh???? No the storm, according to BoM, is going to die just East of Brisbane by 5-10 Kms. I realise that they have stated the. CBD and Moreton in the warning but the track path has to match in these cases. Crazy

IMG_4465.jpeg

IMG_4466.jpeg

Edited by user Sunday, 10 November 2024 7:20:35 PM(UTC)  | Reason: Photo problem

Colin Maitland.
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Aussie Girl on 10/11/2024(UTC)
Offline Colmait  
#284 Posted : Sunday, 10 November 2024 7:31:09 PM(UTC)
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A strong gust front sweeping through as highlighted in image 1. Image 2 is the radar sweep and image 3 the dopper.

IMG_4469.jpeg

IMG_4468.jpeg

IMG_4467.jpeg
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Aussie Girl on 10/11/2024(UTC)
Offline Colmait  
#285 Posted : Sunday, 10 November 2024 7:51:07 PM(UTC)
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Finally!!!! STW for CBD etc. Rotation could be seen on the radar and doppler over Archerfield.

IMG_4471.jpeg
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Aussie Girl on 10/11/2024(UTC)
Offline Aussie Girl  
#286 Posted : Monday, 11 November 2024 9:18:27 AM(UTC)
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Originally Posted by: Colmait Go to Quoted Post
Hi Aussie Girl,

The atmospheric conditions near the Coast just shredded any showers/cells due to wind ( shear) and the lack of available moisture, as a result the cells or shower bands die out quickly, and as seen on the radar, they either show up as light showers or more likely than not, Virga.

Virga is rain, snow or sometimes small hail that falls but does not hit the ground. It evaporates as it fallls, sometimes at high altitudes and sometimes at lower altitudes.

Here is a simple explanation below of Virga





Thank you so much for that explanation Colmait and the diagram and photos. That first photo you posted is amazing - it is actually quite eerie looking.


In your post at 7.51pm last night you mentioned about there being rotation seen on the doppler and radar over Archerfield. I have looked back a number of times at the radar sweeps and doppler sweeps from last night and am none the wiser. I don't know what I should look for to see rotation, especially on the doppler. When you have some time to spare could you possible show me an image that shows rotation, particularly on the doppler.


It was nice to finally have a storm come to fruition after all the maybe it will, maybe it wont days this past week.

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Colmait on 11/11/2024(UTC)
Offline Colmait  
#287 Posted : Monday, 11 November 2024 3:57:15 PM(UTC)
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Hi Aussie Girl

I had to make a cheap little youtube so I could show you the video of the doppler. I used to be able to upload the link to the archive that you create with the Chasers and you could play around with the speed, go forward or rewind etc.

So hopefully this works and can explain a little. The 1st two images highlighted with a black circle, show the two interesting signatures showing rotation, they are both going clockwise in this storm as that was from the prevailing feeding winds or shear. Seeing rotation does not mean automatically there is a tornado. Usually there are other tell tale signs of a possible tornado such as a hook etc. and a more pronounced tightly wound rotation. And they can spin both ways. The corolla effect doesn’t play a big roll in storm cells unlike a cyclone. Storms are controlled more from where the main winds in the atmosphere are moving. But that is another big conversation and very interesting.

Another feature you can look at is the Towards and Away from the radar winds. When you see the Away wind mixed within the Toward winds or the other way around as well, it is also a bit of a tell tale sign that there could be rotation. It is not always the case as you could have a strong change coming through on a weak storm.

IMG_4480.jpeg

IMG_4481.jpeg

And hopefully the link works and you can see these two areas rotate clockwise as they approach the East.

?si=L09WX2OC75Wus97f

You can see a larger rotation of the storm as it headed over the Bay/Sea. The rotation was very weak and indicated some fairly strong wind gusts. It is not the best one to actually see what rotation looks like.

Edited by user Monday, 11 November 2024 10:10:12 PM(UTC)  | Reason: Slowly adding i fo

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Aussie Girl on 11/11/2024(UTC)
Offline Colmait  
#288 Posted : Monday, 11 November 2024 6:50:57 PM(UTC)
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Monday Evening Storms. Another Rumbly night. Should be a good light show if you are in a good vantage point.

IMG_4484.jpeg

IMG_4486.jpeg


IMG_4487.jpeg

256K Mt Stapylton

IMG_4488.jpeg

Edited by user Monday, 11 November 2024 6:54:54 PM(UTC)  | Reason: Added 256 radar image

Colin Maitland.
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Aussie Girl on 11/11/2024(UTC)
Offline Aussie Girl  
#289 Posted : Monday, 11 November 2024 8:25:04 PM(UTC)
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Originally Posted by: Colmait Go to Quoted Post
Hi Aussie Girl

I had to make a cheap little youtube so I could show you the video of the doppler. I used to be able to upload the link to the archive that you create with the Chasers and you could play around with the speed, go forward or rewind etc.



https://youtube.com/shor...CLNNsEsyQ?feature=shared



Thank you so much Colmait. Unfortunately I am not having any success being able to view your video even after signing into Google using my gmail account. I am getting the message "Video Unavailable. This video is private". I am not sure what I am doing wrong.

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Colmait on 11/11/2024(UTC)
Offline Aussie Girl  
#290 Posted : Monday, 11 November 2024 9:33:31 PM(UTC)
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It looks like quite a widespread area is going to receive some good rain tonight.


This is the Mt Stapylton 128km radar image from 9.25pm this evening.


IMG_0748.jpeg
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Colmait on 11/11/2024(UTC)
Offline Colmait  
#291 Posted : Monday, 11 November 2024 10:05:01 PM(UTC)
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Hi Aussie Girl.
I think I may have had youtube set to private. I changed it to share and tried it on my wives device and it seemed to work.

?si=L09WX2OC75Wus97f

If not I will try and reload it tomorrow. Sorry about that.


Just starting to rain here now. Another storm day tomorrow and Wednesday looking good as well.
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Aussie Girl on 12/11/2024(UTC)
Offline Aussie Girl  
#292 Posted : Tuesday, 12 November 2024 9:50:37 AM(UTC)
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Originally Posted by: Colmait Go to Quoted Post
Hi Aussie Girl.
I think I may have had youtube set to private. I changed it to share and tried it on my wives device and it seemed to work.




Thank you so much Colmait, the link worked. Thank you for uploading those doppler images into a video and also for your diagrams. They were very helpful and gave me a good idea of what to look for to see rotation.

The more I read on this forum the more I realise how much I don't know about the mechanism of the weather. I am learning a little tiny bit at a time, so thanks again for your helpSmile



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Colmait on 12/11/2024(UTC)
Offline Colmait  
#293 Posted : Wednesday, 13 November 2024 6:38:19 AM(UTC)
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Today, Wednesday is shaping up to have the potential of being quite a big storm day, although there is still a bit of cloud around, If that burns off quickly and the sun shines through then it should be on. Even with the cloud, I think yesterday’s heat and humidity will have helped to prime the atmosphere for today. Once again real time observations will be the real tell tale.

With Tuesday, even though storms were forecast, only a couple of small cells, albeit weak storms, formed. Most of the energy, ( instability / cape ) was spent on Monday evening with the widespread storms and heavy showers. Then on Tuesday we woke to a cloudy day that didn’t allow for the extra heating needed to allow storms to build.

Below is the sounding from yesterday and you can see the potential had died off.

IMG_4493.jpeg

I waited for the latest GFS run for today and it is looking quite conducive to storms and possibly severe with Strong Winds and possible hail. On the forecast sounding the TT’s (TotalTotals) are fairly high which indicates widespread storms and possibly severe.

Below are the LI’s and cape for this morning, along with the GFS’ stormcast sounding which looks pretty strong. Once the soundings from the Brisbane Airport/ Moree and surrounding areas come out at approx. 11:00 am we should get a better picture. These are my thoughts only, so please keep and an eye and ear out for any warnings if storms come off.

IMG_4497.jpeg

IMG_4496.jpeg

IMG_4498.jpeg

Edited by user Wednesday, 13 November 2024 6:41:26 AM(UTC)  | Reason: Added the TT’s in

Colin Maitland.
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Aussie Girl on 13/11/2024(UTC)
Offline Colmait  
#294 Posted : Wednesday, 13 November 2024 11:42:02 AM(UTC)
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The Brisbane and Moree Soundings are out and it is looking like we are primed for a fairly big storm day. The Satellite is showing cloud clearing off the East Coast and that will allow additional fuel into atmosphere with the extra heating. You can see the difference between the Moree and the Brisbane Sounding, you would probably see a similar sounding if they were to release another balloon at the Brisbane Airport in an hour or so.

Moree Sounding

IMG_4503.jpeg

Brisbane Sounding with the cloud cover and extra moisture especially around the 500mb.

IMG_4501.jpeg

An image of the Satellite starting to clear to the East.

IMG_4502.jpeg



So if it all unfolds please be diligent and heed all warnings as it may be a big day for Strong Winds and Large hail.
Colin Maitland.
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Aussie Girl on 13/11/2024(UTC)
Offline Aussie Girl  
#295 Posted : Wednesday, 13 November 2024 11:50:19 AM(UTC)
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Originally Posted by: Colmait Go to Quoted Post



So if it all unfolds please be diligent and heed all warnings as it may be a big day for Strong Winds and Large hail.



Thanks for this update Colmait. This thread is so good for keeping up to date with storm possibilities thanks to your very informative posts.


Just little bits and pieces on the radar at the moment so it will be interesting to watch things building up. The Mt Stapylton 256k radar image at 11.45 am:


256k Mt Stapylton 13.11.24  11.45 am.JPG
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Colmait on 13/11/2024(UTC)
Offline Colmait  
#296 Posted : Wednesday, 13 November 2024 1:02:59 PM(UTC)
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Blanket warning out SSW of QLD as the storms are building.

IMG_4504.jpeg

But there is a good cell with a black core building as it approaches the Wivenhoe Dam I think that BoM will need to keep an eye on.

IMG_4505.jpeg
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Aussie Girl on 13/11/2024(UTC)
Offline Colmait  
#297 Posted : Wednesday, 13 November 2024 2:15:45 PM(UTC)
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The storm that I highlighted in the previous post and again in the image below of the radar, is really throwing out some good deep rumbles at the flank of the storm. Some good solid rain as well.

IMG_4517.jpeg

IMG_4515.jpeg
Colin Maitland.
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Aussie Girl on 13/11/2024(UTC)
Offline Colmait  
#298 Posted : Wednesday, 13 November 2024 2:33:34 PM(UTC)
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The main system is now starting to really get going just to the SouthWest and is slowly getting closer to the Coastal or Eastern Suburbs. As the afternoon continues the atmosphere around the Metropolitan /Coastal areas should start to feed into the band of storms. Right now it appears the upper 500mb is chocking out the storms a little bit.

Latest warnings.

IMG_4518.jpeg
Colin Maitland.
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Aussie Girl on 13/11/2024(UTC)
Offline Colmait  
#299 Posted : Wednesday, 13 November 2024 2:54:35 PM(UTC)
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Some severe cells have now developed and making their way towards the North East.

Latest STW..

IMG_4519.jpeg

128K and 256K Mt Stapylton radar

IMG_4521.jpeg

IMG_4520.jpeg

Edited by user Wednesday, 13 November 2024 2:55:40 PM(UTC)  | Reason: Not specified

Colin Maitland.
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Aussie Girl on 13/11/2024(UTC)
Offline Colmait  
#300 Posted : Wednesday, 13 November 2024 3:09:13 PM(UTC)
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The storm over Boonah has become a right mover due to the prevailing winds in the supercell.
Also one of the storms has been labelled aVery Dangerous Storm.

IMG_4527.jpeg

IMG_4524.jpeg

What could be heading our way.

IMG_4526.jpeg
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Aussie Girl on 13/11/2024(UTC)
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