A sultry evening is following on from a steamy day.

Thunder first audible to the west at 1718Z, with frequent
peals since. Lightning now visible at 1747Z and 1750Z.

This cell appears to be expanding to the north but other
anvils are sprouting from the ranks of Ac castellanus.

Little pptn observed falling from the base of the storm
clouds at present and not a drop of rain here so far.

SYNOP 22/1750Z (current ob)
03/// 31865 61605 10254 20170 40129 53001 71711 85082
333 10292 83357 84360=

METAR
EG// 221750Z 16005KT 9999 TS SCT070 SCT100 25/17
Q//// BLU=

Details:
wind... SSE, force 2 (backed from SSW in last hour).
visibility... 15km.
weather... moderate intensity thunderstorm without rain.
clouds... 3/8 Ac cas 7000ft, 4/8 Ac cas 10000ft,
1/8 Ac 15000ft, 3/8 Ci spi 25000ft.
dry bulb... +25.4C.
dew point... +17.0C.
RH... 60%.
sea level pressure... 1013.9mb (was falling, now rising).
max temp today... +29.3C.
12 hour rainfall (0600-1800Z)... 0.0mm.

beaufort letters (1650-1750Z)... bcy,ctloy,ctl.

Nigel (Romsey, Hampshire)
40m amsl