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Old June 26th 09, 04:52 PM posted to uk.sci.weather
David Buttery David Buttery is offline
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First recorded activity by Weather-Banter: Feb 2006
Posts: 611
Default MO Advisory - The probability of heatwave conditions ......

On Fri, 26 Jun 2009 13:00:50 +0100, John. Athome wrote:

Issued at: Friday 26 June 2009 at 11:30

The probability of heatwave conditions in parts of England and Wales
between 0900 on Monday and 0900 on Tuesday is 60%

snip
http://www.metoffice.gov.uk/weather/...lth/index.html


I may very well be missing something here, but that surprises me a little
bit. For example, London's threshold day max is 32°C, which is not a very
easy value to reach. Clicking on London on the actual MetO map gives 28°C
for Monday and 27°C for Tuesday, and GFS seems broadly to agree.

I don't really see where the stated "60% risk" of 32°C in London comes
from, assuming the warning isn't simply about high night-time minima (in
which case one would assume this would be stated).

--
Bewdley, Worcs. ~90m asl.