Rain and storm for Cpt

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Warm ish today being partly sunny, though breeze is moderately fresh and temps nippier in the shade.

We see what transpires in the latter part of week ...
 
So with such good dam levels will the restrictions be completely lifted or has the CoCT still failed to plan for and provide adequate water infrastructure? :popcorn:
 
Segg said:
So with such good dam levels will the restrictions be completely lifted or has the CoCT still failed to plan for and provide adequate water infrastructure? :popcorn:
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Gordon said last week they will let us know by the end of the hydrological year, whatever that is
 
The Macro indicators are still positive for more cold fronts to reach the Cape. Another pattern later this week and then next week again. Things are looking very good for dam levels in the western cape.
 
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Papa Smurf said:
Gordon said last week they will let us know by the end of the hydrological year, whatever that is
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The end/beginning of the hydrological year is 1 November. I did some back of an envelope calculations, and happy for someone to check it.

The dams are 88% full as of yesterday, 790,000 million litres of water in the dams.

As of 1 November we need to be at 80% and they will 'lift' restrictions on allowed usage per person.

The average daily water use is around 661million litres, as of this past week. So maybe we round that up to 700 million daily use on average as there is less rain until 1 november, warmer weather, etc.

At 80% full, the dam system (900,000 million litres in total) needs to be around 720,000 million litres, which gives us 8% or 70,000 million litres to use if no further rain falls.

Simple division gives us about 100 days usage at 700 million daily use to get to 80%, at around 2nd of December.
Alternatively put, our water consumption can go up to 1,030 million litres daily usage (from current 660 million litres) up to 1 November, for restrictions to be lifted.

Thanks for coming to my Ted Talk. Don't forget to like my post, subscribe to my channel and whatever you do on 'gram.
 
cenredash said:
The end/beginning of the hydrological year is 1 November. I did some back of an envelope calculations, and happy for someone to check it.

The dams are 88% full as of yesterday, 790,000 million litres of water in the dams.

As of 1 November we need to be at 80% and they will 'lift' restrictions on allowed usage per person.

The average daily water use is around 661million litres, as of this past week. So maybe we round that up to 700 million daily use on average as there is less rain until 1 november, warmer weather, etc.

At 80% full, the dam system (900,000 million litres in total) needs to be around 720,000 million litres, which gives us 8% or 70,000 million litres to use if no further rain falls.

Simple division gives us about 100 days usage at 700 million daily use to get to 80%, at around 2nd of December.
Alternatively put, our water consumption can go up to 1,030 million litres daily usage (from current 660 million litres) up to 1 November, for restrictions to be lifted.

Thanks for coming to my Ted Talk. Don't forget to like my post, subscribe to my channel and whatever you do on 'gram.
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thanx for that
 
One day of "good" rain gives us 10 days of water, it seems. This is, of course, highly variable.
 
Tom427 said:
One day of "good" rain gives us 10 days of water, it seems. This is, of course, highly variable.
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Yes highly variable, also depends on when in the season, soil saturation, also what mm of rain over what period qualifying as "good".

If you mean by yesterday, last night, you're talking of a combination of factors, melting snow run off still?

But roughly equalling half a percent or roughly 5,000 million litres, so closer to 7 or 8 days at 661 million litres a day.
 
A significant weather event over the next few days will bring some rain, and extremely low temperatures, with widespread snow over the mountains by Sat 29th. The rain will be mostly restricted to the SW-Cape, but the cold air will push far into the interior:

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Love it and cannot wait to go to work tomorrow on my jetski @Gordon_R . However, are we in for a massive storm in the sense of wind speeds tomorrow? If so I will rather call in a days leave. It's just too damn dangerous when you're on a bike in those conditions
 
Papa Smurf said:
Love it and cannot wait to go to work tomorrow on my jetski @Gordon_R . However, are we in for a massive storm in the sense of wind speeds tomorrow? If so I will rather call in a days leave. It's just too damn dangerous when you're on a bike in those conditions
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No, not a major windstorm. A bit late in winter for that. Just cold and damp.

Edit: I see that the average dam levels for the Cape Metro reached 88.6%. Probably a good chance that they will reach 90% by Tues 1st Sep! See: http://www.capetown.gov.za/Family a...and-sanitation-services/this-weeks-dam-levels
 
Gordon_R said:
Edit: I see that the average dam levels for the Cape Metro reached 88.6%. Probably a good chance that they will reach 90% by Tues 1st Sep! See: http://www.capetown.gov.za/Family and home/residential-utility-services/residential-water-and-sanitation-services/this-weeks-dam-levels
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Happy for the Capies, but sad for us further east where our dams are running on empty - with no rain forecast for the catchment areas.

Fortunately my rainwater tanks are still full and get replenished regularly.
 
Intermittent showery rain today (Fri 28th), but starting to get colder as wind swings to SW. Very heavy downpours at times, due to upper instability. Likely to start snowing this afternoon, and persisting into tomorrow (Sat 29th).
 
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