Rain and storm for Cpt

[Gordon_R]

Thats 23% in 4 days…Insane amount of water!!!

As I mentioned in a previous post, that inflow is about 25 million m^3/day, or 25 times the peak summer consumption for the CoCT. In other words, 4 days rain has produced sufficient runoff for 100 days water supply, and double that if you count the other dams. A good winter produces enough storage for about 1000 days consumption (more than 30 months or 2.5 years).

Edit: I suppose really dry winters such as 2016 & 17 produce 250 days storage, resulting in Day Zero scenarios.

 

[Spacerat]

As I mentioned in a previous post, that inflow is about 25 million m^3/day, or 25 times the peak summer consumption for the CoCT. In other words, 4 days rain has produced sufficient runoff for 100 days water supply, and double that if you count the other dams. A good winter produces enough storage for about 1000 days consumption (more than 30 months or 2.5 years).

Thanks… mind blowing

 

[WollieVerstege]

That notice doesn't say whether access to the summit lookout is still permitted, or whether the whole pass road has been closed at the bottom (north side).

Would think the whole pass is closed, can't think that the north side of the pass is any drier than the Southern part, in fact from experience I would say it is worse on the northern side.

 

[Gordon_R]

Thanks… mind blowing

That's also why you can't live (a modern lifestyle) using just the storage from a few JoJo tanks..With such variable rainfall, you need massive capacity (typically 1000 days usage). Theewaterskloof is actually sub-optimal as a dam, since it has an average depth of only 10m, compensated by a rather large surface area (50km^2).

 

[Supervan II]

There is the iron ore line going to Kurriman in NC, that probably could be used to divert some trains around, but not sure of the connections from the CT port to the iron ore line Saldanha (is it all powered?) and the Upington connection that can divert off the iron ore line.


Dont worry though, we mainly use trucks for logitistcs since PRASA has got worse and worse.
Probably transport of bulk goods might suffer

You mean the Sishen to Saldanha line?

That is a dedicated line, I'm afraid, and does not connect to other rail lines, nor does it extend further south than Saldanha.

ETA: The Cape Town - PE railway line was similarly damaged some years ago (near Wilderness) and was never repaired - that railway line is still out-of-service to this day.

 

[Gordon_R]

You mean the Sishen to Saldanha line?

That is a dedicated line, I'm afraid, and does not connect to other rail lines, nor does it extend further south than Saldanha.

ETA: The Cape Town - PE railway line was similarly damaged some years ago (near Wilderness) and was never repaired - that railway line is still out-of-service to this day.

Pretty much the whole toplogy of the rail system in the Cape Province(s) revolves around the small but vital town of De Aar in the Karoo. The weather there should suit @Jet-Fighter7700

See:

A topographic map of the Western Cape shows very few potential transportation routes:

 

[bwana]

Continued: https://mybroadband.co.za/forum/threads/rain-and-storm-for-cpt-pt-2.1296127/