[Rasp] Changes to timing of RASP Beta forecasts

[Ian]

Hi All

I have made a few changes to the timing of the RASP Beta forecasts:

There is a bug in the code which handles the difference between local 
time and universal time. Historically the graphics claimed both were the 
same and generated forecasts at UTC times claiming they were local 
times. I had an uphill battle trying to fix this but I have implemented 
a work around in the meantime:

1) I have changed the time basis of the forecasts to Universal Time (UTC 
or GMT). The server time clock and local time zone have been set to UTC. 
So all the times you see are UTC, ie 2 hours ahead of local South 
African Time (SAST). Thus a chart labelled 1200 UTC is actually 1400 
local time. (Just remember to add 2 hours on to every time you see.) 
This is less convenient but it is correct, which better and facilitates 
other changes.

2) I have adjusted the "Z2" "today" model to use source data from the 
GFS run 3 hours earlier. This results in the model now getting published 
at 7h30 local time in the morning instead of 09h00. This makes it much 
more useful for planing tasks and daily flying.

(The above does not effect the legacy forecasts.)

Regards


Ian

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