0900z: 18002KT 50km 1CU035 (1AC150) 6CI250 19.4/10.4 QFF 1029.5 falling.
SYNOP: 42684 61802 10194 20104 40295 57007 81132 333 81835 86075=
A clear and cold night Thursday night, follwed by a fine, warm and sunny day on Friday. Small amounts of convective cloud late Friday afternoon. A cool and clear night Friday night, apart from a general increase in high cloud and some thin altocumulus late in the night. Light and variable winds since Thursday evening, and very good or excellent visibility. Currently there is a fair bit of thin cirrus, with some dense patches within it. Under this is some patchy thin altocumulus. Local convection has just commenced, with a small amount of shallow cumulus visible to the north. Visibility is excellent, and there is a very light southerly breeze.

21/0900z to 22/0900z:
Max: 19.3 (1519z)
Min: 5.8 (0148z)
Rain: Nil

22/0900z to 23/0900z:
Max: 22.1 (1400z)
Min: 8.3 (0356z)
Rain: Nil

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Freddie
Ystrad
Rhondda
148m AMSL
http://www.hosiene.co.uk/weather/
https://twitter.com/YstradRhonddaWx for hourly reports (no wind measurement currently)