Fog descended upon Romsey at 2030Z, at least on the
higher ground but hadn't lowered to town centre level
when I was there briefly, a little after 2100Z. Currently:

SYNOP 17/2150Z
03/// 41003 81905 10074 20068 40221 55001 74644 886//
333 88700=

METAR
EG// 172150Z 19005KT 0300 FG OVC000 07/07 Q////
RED=

Details:
wind... S by W, force 2.
visibility... 300m (down from 400m an hour before).
weather... fog.
clouds... 8/8 St below 100ft.
dry bulb... +7.4C.
dewpoint... +6.8C.
RH... 96%.
sea level pressure... 1022.1mb (little overall change).
max temp today... +12.8C.
rainfall today... 0.0mm.

beaufort letters (2050-2150Z)... cf,cff.

Nigel (Romsey, Hampshire)
40m amsl