I managed to get some recordable rain by 23Z (0.3mm). Just before it got
dark it looked as though the sky was becoming OVC, and the -RA kept on
going.
Heathrow reports:
EGLL 292250Z 30003KT 9999 -RA FEW025 BKN070 13/08 Q1019 NOSIG
EGLL 292220Z 31003KT 9999 FEW022 BKN070 14/08 Q1019 NOSIG
EGLL 292150Z 33003KT 9999 -RA FEW023 BKN070 14/08 Q1019 NOSIG
EGLL 292120Z 32003KT 9999 -RA FEW023 SCT045 BKN070 14/08 Q1019 NOSIG
Wattisham and Herstmonceaux also reporting a 'trace'.
Phil