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)