A rare event. This is the first time I have recorded hail
in July since starting weather records in 1974 (here and
at Wootton, Isle of Wight). The stones were opaque
measuring up to 9mm in diameter. 2 obs follow to
describe the weather in Romsey over the past 2 hours:

SYNOP 04/1650Z
03/// 41540 63117 10149 20091 40100 53015 79611
86960 333 85925 90710 91130 91030 93209=
METAR
EG// 041650Z 31017G30KT 4000 TSGR BKN025CB
15/09 Q//// GRN=
---------------------------------------------------------
SYNOP 04/1750Z
03/// 11570 53404 10127 20108 40105 52020 60032
72998 85960 333 10179 82925 84835 91127=
METAR
EG// 041750Z 34004KT 9999 FEW025CB SCT035TCU
13/11 Q//// RETS REGR BLU=

Details:
wind... NNW, force 2 (was force 5 with gusts to 30kt).
visibility... 20km (down to 3500m to NE at worst).
weather... partly cloudy (recent thunder and hail).
clouds... CB, CU, SC, AC.
dry bulb... +12.7C (rapid fall of 4C from 1645 to 1655Z).
dewpoint... +10.8C.
RH... 88%.
sea level pressure... 1010.5mb (rising).

hourly rainfall /// beaufort letters:
(1550-1650Z)... 0.4mm /// bcjpu,cpho,ctlohr.
(1650-1750Z)... 2.6mm /// ctlohr, ctlor,ctlo,bc.

thunder heard today... 1423-1440Z and 1645-1715Z.

Nigel (Romsey, Hampshire).