Rain and storm for Cpt pt 2

satanboy said:
I am genuinely curious how you determine which is AI and which is not. But you just come across as rude.
Click to expand...

Edit: Never mind, they are posted on FB. Nuff said...

Many years of taking photos of weather and skies, knowledge of astronomy and terrain, and familiarity with the area. Also realising how hard it is to take good photos, and intolerance of those who take shortcuts, and/or produce fake or misleading images.

Edit: It would take too long to explain what is wrong with those images, but the angle of the light does not match, and they do not pass the 'smell' test.

Edit: Plenty of actual photos of real rainbows on my website: http://www.capetownskies.com/rainbows.htm

P.S. The euphemism for my attitude is called 'not suffering fools gladly'.
To "not suffer fools gladly" means to have no patience or tolerance for people or ideas you think are foolish, slow, or incompetent.
Click to expand...
 
Last edited:
Gordon_R said:
I don't know if the Loxton photo is AI, but the Kalk Bay ones are. Anyway what is their relevance to this thread? Post in a photography forum if you want to...
Click to expand...
Definitely not AI. I was there. We often have the rainbow from the mist/spray. See it at Outers as well when the wind whips the spray into the air. Maybe the use of a filter at most.

As for the waves, those are not near what I've seen in the past. You should be familiar with the damage that Harbour House and Brass Bell have suffered in the past?
 
Last edited:
Stickfigure said:
Did a hike up to the blockhouse this morning. Wind is still absolutely pumping up on the mountain.
Click to expand...

I know what you mean (but haven't hiked there recently). Devil's Peak is like an (inverted) 'funnel'. All of the South Easter wind has to pass around the corner (above Hospital Bend) before passing into the City Bowl. Same with the Civic Centre in the Foreshore, with its literal 'wind-tunnel'...
 
Not a breathe of wind here Sea Point side, as @Gordon_R has mentioned, locality, terrain and a load of other often impossible to inject with reasonable certainty variables makes localised weather predictions possibly one the most computationally complex models.
 
MirageF1 said:
Not a breathe of wind here Sea Point side, as @Gordon_R has mentioned, locality, terrain and a load of other often impossible to inject with reasonable certainty variables makes localised weather predictions possibly one the most computationally complex models.
Click to expand...

I don't know any forecaster prepared to make predictions about the exact wind and rainfall patterns around Cape Town. Plenty of old-timers know the general patterns, but it's very hard to put down specific numbers. It's called micro-climate, but taken to an extreme...
Scale: Can range from a few square meters (like under a log or a garden bed) to several square miles (like a valley).
Factors: Driven by differences in temperature, humidity, wind, soil composition, and sunlight.
Duration: Represents persistent localized atmospheric variations rather than temporary minute-by-minute weather changes.
Click to expand...

AFAIK the Civic Centre was studied by computation fluid analysis at the CSIR, but that was a probabilistic and statistical envelope for design purposes.
 
The wind has wreaked havoc in my area. Most damage seems to have been done overnight, but it is getting worse again at the moment.
 
Fulcrum29 said:
The wind has wreaked havoc in my area. Most damage seems to have been done overnight, but it is getting worse again at the moment.
Click to expand...

Much quieter today in Kenilworth. The charts show the wind direction changing to almost Easterly, so we are sheltered by Table Mountain. Your area may experience the opposite (Sir Lowry's Pass, Sea Point, etc).

P.S. Notice all the haze today. It's not smoke from fires, but dirty air from Gauteng...
 
Gordon_R said:
Much quieter today in Kenilworth. The charts show the wind direction changing to almost Easterly, so we are sheltered by Table Mountain. Your area may experience the opposite (Sir Lowry's Pass, Sea Point, etc).

P.S. Notice all the haze today. It's not smoke from fires, but dirty air from Gauteng...
Click to expand...

It is nigh impossible to even crack a window open with this wind howling. It is not only dust, leaves, debris amongs other things, but also the odour.
 
ghaye said:
Interesting, had zero wind at all yesterday in Plattekloof.
Click to expand...

It's all about wind direction, terrain contours and slopes. AKA micro-climates. I read a whole book about it last year...

P.S. That's one reason why CT airport is in the middle of nowhere in the Cape Flats, away from hills and mountains. It still gets plenty of wind, but more steady and less gusty.

Edit: If you look at the low-level wind chart for today, it is near gale-force offshore, but much quieter over land and in the shelter of the mountains:
925mb_wind_012[20260906_1200].gif
 
Last edited:
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X