0900z: 09003KT 15km 4AC070 8AC090 5.8/4.2 QFF 1031.4 rising.
SYNOP: 42865 80903 10058 20042 40314 52023 8807/ 333 84357 88359=
Intermittent slight rain and drizzle throughout most of daylight hours on Sunday. Despite this, there were some concurrent brief sunny intervals early afternoon! Rain and drizzle became persistent during the second half of the afternoon, and moderate at times during the evening, then becoming intermittent after midnight and finally stopping around 0500z. A cloudy 24 hours, with moderate or poor visibility, increasing to good during the second half of the night. Double cold front passed through - the first around 1700z, the second just after 2000z. Both had modest temperature and dew point drops, the second had a 150-degree wind veer. Winds were generally southwesterly or westerly, veering behind the second cold front to eastnortheasterly. Wind speed F3 or less. Currently it is cloudy but dry, with layers of altocumulus, good visibility underneath, and a F2 easterly surface wind.

23/0900z to 24/0900z:
Max: 11.7 (1340z)
Min: 5.8 (0844z)
Rain: 2.2 mm

--
Freddie
Ystrad
Rhondda
148m AMSL
http://www.hosiene.co.uk/weather/
https://twitter.com/YstradRhonddaWx for hourly reports (very few tweets getting through currently)
Stats for the month so far: https://www.hosiene.co.uk/weather/st...201812DEC.xlsx