Maybe I'm behind the times but I have just come across the following
site which may be of interest to some regulars on u.s.w.
http://severe.worldweather.org/
I see that the UK Met Office is not yet a participant.
Norman.
(delete "thisbit" twice to e-mail)
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Norman Lynagh Weather Consultancy
Chalfont St Giles 85m a.s.l.
England