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Old October 23rd 18, 12:29 PM posted to uk.sci.weather
Freddie Freddie is offline
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First recorded activity by Weather-Banter: Dec 2009
Posts: 5,538
Default [OBS] Ystrad, Rhondda - Tue 23 Oct 2018

1200z: 31005KT 50km 7CI250 16.0/2.7 QFF 1032.1 falling.
SYNOP: 12984 73105 10160 20027 40321 58016 60001 80002 333 87075=
Some sort of foehn effect, or mixing down of dry and warm air from aloft, as temperature has shot up and dew point dropped recently, and the visibility has improved markedly - despite already being very good. Just a light "down the valley" northwesterly at the moment, and extensive cirrus cloud that is dense in a few spots.

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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)
Stats for the month so far: https://www.hosiene.co.uk/weather/st...201810OCT.xlsx