The Gauteng Weather and Storm Warning Thread!

[Sinbad]

️️ALERT: Strong storm knocks out power in the West Rand. Outage affecting Ruimsig through all of Roodepoort to Weltevreden Park & Honeydew.


We had all of 3mm in randburg

 

[Luke7777]

All of 1mm here earlier But still a rumble about.

 

[Genisys]

Something is better than nothing.

 

[voldoverse]

️️ALERT: Strong storm knocks out power in the West Rand. Outage affecting Ruimsig through all of Roodepoort to Weltevreden Park & Honeydew.


We had all of 3mm in randburg

is there some sort of scientific explanation as to why the west rand always gets insane storms?

 

[Sinbad]

Not Gauteng, but....

Yes you are reading this post right! This is our preliminary snowfall forecast for Tuesday 14 November 2017 - Thursday 16 November 2017.

A steep upper air trough that could possibly cut-off could form over KwaZulu - Natal and the Eastern Cape on Tuesday. This system will bring moderate to heavy rain over the Eastern Cape and KZN from Tuesday evening as well as snowfall over the Drakensberg. Snowfalls expected over most of Lesotho, southern Drakenberg in the Eastern Cape with heavy snowfall expected over the Eastern Drakensberg.

We also see a temperature drop for most parts of the country. See the second image that I've attached.

Remember this preliminary data. Forecasts are subject to change.

 

[Arzy]

Just shy of 5mm in the south

 

[supersunbird]

Not Gauteng, but....

Yes you are reading this post right! This is our preliminary snowfall forecast for Tuesday 14 November 2017 - Thursday 16 November 2017.

A steep upper air trough that could possibly cut-off could form over KwaZulu - Natal and the Eastern Cape on Tuesday. This system will bring moderate to heavy rain over the Eastern Cape and KZN from Tuesday evening as well as snowfall over the Drakensberg. Snowfalls expected over most of Lesotho, southern Drakenberg in the Eastern Cape with heavy snowfall expected over the Eastern Drakensberg.

We also see a temperature drop for most parts of the country. See the second image that I've attached.

Remember this preliminary data. Forecasts are subject to change.

What image?

 

[Sinbad]

What image?

If you insist

 

[Genisys]

What dafuq?

 

[The_Librarian]

Had a wee bit of rain, everything smells good and new.

Was expecting some heavy thunderstorm, but it was more like "Son, I am dissapoint"....

 

[The_Librarian]

Some cool weather will be more than welcome after this heat....

 

[Gordon_R]

If you insist

Please don't encourage anyone to visit this site: https://www.facebook.com/stormreportsaOFFICIAL

They are plagiarists and only interested in ad revenue.

The second image shown is copied from a site that I administer, without any form of credit. I edited/cropped and posted the image this morning, with the following caption: https://www.facebook.com/stormchasingsa/videos/1684501338269412/

A significant weather event will affect most of the southern half of South Africa during next week (Tues 14th through Thurs 16th). A cold-core upper-trough will traverse the region, first bringing a cold-front that will produce some rain over the SW-Cape (as well as light snow over the mountains). This will move eastwards develop into a cutoff-low, with the potential to produce very heavy rain over parts of the Garden Route (S-Cape), and eventually the KZN coast and adjacent interior. Cumulative totals of 100-150mm are possible in places. The system will produce heavy snowfalls over the Drakensberg and Lesotho, persisting until Fri 17th.

The detailed rainfall distribution is not clear (yet), but this temperature chart shows the likelihood of widespread cold conditions moving in over much of the country (including northern areas that will not get rain). More details will follow closer to the time.

 

[supersunbird]

Please don't encourage anyone to visit this site: https://www.facebook.com/stormreportsaOFFICIAL

They are plagiarists and only interested in ad revenue.

The second image shown is copied from a site that I administer, without any form of credit. I edited/cropped and posted the image this morning, with the following caption: https://www.facebook.com/stormchasingsa/videos/1684501338269412/

Try to put a faint watermark logo across the images maybe

 

[Gordon_R]

Try to put a faint watermark logo across the images maybe

Thanks for the concern, but the image is public domain (not my personal property). It is only unique because I cropped it (from a larger version), at a very specific pixel location. Anyone else posting it from the original source would miss that detail, and post a different version.

BTW, chasing down plagiarists is a waste of time. I normally tend to ignore that site, but just wanted to raise the issue here, since it was posted on this forum.

 

[Enzo Matrix]

Thanks for the concern, but the image is public domain (not my personal property). It is only unique because I cropped it (from a larger version), at a very specific pixel location. Anyone else posting it from the original source would miss that detail, and post a different version.

BTW, chasing down plagiarists is a waste of time. I normally tend to ignore that site, but just wanted to raise the issue here, since it was posted on this forum.

Then you have no say over the image to start with?

 

[Gordon_R]

Then you have no say over the image to start with?

I'm merely pointing out that they are plagiarists, not claiming copyright. If they copy my derivative (edited) work, that is unethical, not because the content is original, but because they are too lazy or careless to do the research for themselves.

Edit: This is off topic, but there is an entire section of copyright law around translations and adaptations of original works: https://en.wikipedia.org/wiki/Derivative_work

Edit #2: I do not lightly accuse them of plagiarism. This is merely the latest provable version of that fact.

 

[Gordon_R]

Back on topic, though not strictly related to Gauteng. The cutoff-low that will pass over the southen half of SA this week, will produce very heavy rain over parts of the coast and adjacent interior (though sadly not much for Cape Town).

This chart shows the predicted cumulative rainfall during the 60 hour period from 00Z on Tues 14th to 12Z on Thurs 16th. Falls in excess of 100-150mm are likely in places, which could lead to flash flooding. The exact details are impossible to predict this far in advance, but the overall scenario is fairly clear. Scale is inches: 4in = 100mm, 6in = 150mm.



Image cropped. Source credit: NOAA NWS NCEP MAG: http://mag.ncep.noaa.gov/model-guid...Model Guidance&model=GFS&area=AFRICA&ps=model
00Z GFS run on Mon 13th.

 

[Sinbad]

Blustery as fsck in randburg now. I expect some serious action in a bit.

 

[R13...]

'Tis bucketing in midrand and looks just as dark east

 

[cavedog]

Centurion some heavy dark clouds moving around. Lots of lightning.