In message , Dave Ludlow
writes
On Sat, 21 Apr 2018 23:23:38 +0100, N_Cook wrote:

So about 28mm in 55 minutes with a peak rate of 200mm/hr

A PWS in Bitterne reports 68mm - peaking 223 mm/h and almost all
during that late evening thunderstorm, with one at Midanbury 53mm and
both are supported by the rainfal radar accumulated precipitation
estimates.

Only 7 mm here in W Fareham but boy was that a spectacular horizon to
horizon lightning spectacular, lasting about 45 minutes with mostly
c-c flashes every second or two at times. It may only be April but I
haven't observed a 'summer' thunderstorm like that for donkeys years -
brilliant!


I wonder how many years back you would have to go to find a comparable
UK April thunderstorm.

Though we had a shower yesterday evening here in Cranleigh, I didn't
notice any lightning (but the curtains were drawn) or hear any thunder.
--
John Hall
"Hegel was right when he said that we learn from history
that man can never learn anything from history."
George Bernard Shaw (1856-1950)