"Nigel Paice" wrote in message
...

A pair of anvils have rapidly sprouted from clusters of
CU congestus clouds to the WSW and E, slowly moving
NW'wards. The sky to the SE and S remains clear.
Distant thunder has been heard from both of these CBs
since 1515Z. Obviously there is still enough moisture!

Thunder has become quite frequent from the CB cell to
the NE and ENE which appears to be expanding and
throwing the anvil shield overhead. The storm is edging
to the WNW.

Current conditions at 1550Z on 11th May 06:

SYNOP 11/1550Z
03/// 41660 52405 10198 20103 40175 58010
71798 83963 333 83930 83075=

METAR
EG// 111550Z 24005KT 9999 TS SCT030CB
SCT250 20/10 Q//// BLU=

Details:
wind... WSW, force 2.
visibility... 10km.
weather... thunderstorm (no rain).
clouds... 3/8 CB cap, base 3000ft,
1/8 CU med, base 4000ft,
2/8 AC cbgen at 12000ft,
3/8 CI spi cbgen at 25000ft.
dry bulb... +19.8C.
dewpoint... +10.3C.
RH... 54%.
sea level pressure... 1017.5mb (falling slowly).
rainfall last hour... trace.

beaufort letters (1450-1550Z)... bcproy,bcy,bctloy.

Nigel (Romsey, Hampshire)