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<p><font face="DejaVu Sans">Hi All</font></p>
<p><font face="DejaVu Sans">I have made a few changes to the timing
of the RASP Beta forecasts:</font></p>
<p><font face="DejaVu Sans">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:</font></p>
<p><font face="DejaVu Sans">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.</font></p>
<p><font face="DejaVu Sans">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. <br>
</font></p>
<p><font face="DejaVu Sans">(The above does not effect the legacy
forecasts.)<br>
</font></p>
<p><font face="DejaVu Sans">Regards</font></p>
<p><font face="DejaVu Sans"><br>
</font></p>
<p><font face="DejaVu Sans">Ian</font></p>
<p><font face="DejaVu Sans"><br>
</font></p>
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