"Steve Harris" wrote in message
...
In article ,
(Franz Heymann) wrote:

I doubt if they run millions of simulations for one situation. If
they did, it might take them a year to produce tomorrow's forecast

They have quite powerful computers these days and lots of them.

Yes. My understanding is that they use them to handle data on a smaller
sized net rather than to do millions of simulations for the same situation.

Franz

Steve Harris - Cheltenham - Real address steve AT netservs DOT com