Somewhat delayed special report due to a vicious
thunderstorm with a few intense flashes (brilliantly
illuminated in the day darkness) and close bangs.
Power down for 20 minutes.

Thunder first heard at 1220Z and went on for
15 minutes at close on 1 rumble per minute.
During that time the wind rose from 12kt to 26kt,
gust 52kt with horizontal, violent rain and 5mm
diameter hail reducing the vis to 400m.
6.4mm of pptn fell in 6 minutes.
Here was my report for 1228Z at the height of
the storm:

SYNOP 10/1228Z
03/// 41/04 92026 10059 20048 49960 5////
79696 91052 93205 99400=

METAR
EG// 101228Z 20026G52KT 0400 +TSGR SQ
VV/// 06/05 Q//// RED=

Nigel (Romsey, Hampshire)

On Mar 10, 1:06*pm, "Nigel Paice" wrote:
Thunder first heard at 1220Z and went on for
15 minutes at close on 1 rumble per minute.
During that time the wind rose from 12kt to 26kt,
gust 52kt with horizontal, violent rain and 5mm
diameter hail reducing the vis to 400m.
Nigel *(Romsey, Hampshire)

... we must have been experiencing the 'winding-up' phase of this one
here in East Dorset (West Moors, just north of Ferndown). Moderate,
temporarily heavy rain between 1155Z & 1215Z, with a *brief* (single-
discharge) thunderstorm ~1210Z. No hail observed here, but the rain
was significant for a very short time. Sharp clearance around 1220Z
with strong sunshine returning. Noticed that EGHH experienced a gust
(10min/ob period only) to 49kn with the 1150Z ob. which would have
been as this thing was in the vicinity, but there have not been any
observations since! (As of 1320Z due issue).

Martin.