Dave Ludlow wrote:

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!

Yes, the yellow warning issued yesterday morning got it completely
wrong. The prediction was for all the action to be in the north of
England while the south didn't get a mention. The warnings didn't catch
up until yesterday evening when the event was actually developing in
the south.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
https://peakdistrictweather.org
Twitter: @TideswellWeathr