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Old March 11th 13, 06:10 PM posted to uk.sci.weather
Martin Rowley[_4_] Martin Rowley[_4_] is offline
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First recorded activity by Weather-Banter: Dec 2011
Posts: 475
Default [WR]11MAR2013_WestMoors/EastDorset

... (11/1505Z): the odd flake now but I judge more to do with the Cu
drifting downwind rather than the Cm shield: have been a couple of
spells of persistent -SN in past 3 hours, but certainly no impact on
VIS/SFC & the 'older' snow is now virtually confined to some patches on
grass. I think we've always been on the edge of the thicker cloud, and
in past hour as it's drawn away, the sun has shone through the Cs neb/As
tr strongly enough to cast weak shadows - some FEW/SCT Cu med now.

OAT = +1.2°C // DP = -5.7°C.


.... (11/1810Z): dry/well-lifted cloud base: air continuing to dry out -
perky/parky wind(!) - snow virtually gone through combination heating
from below & reducing relative humidity.

OAT = +0.3°C // DP = -8.1°C.

I see there is one dew point of -11 upwind of us at 17Z.

Martin.

--
West Moors / East Dorset
Lat: 50deg 49.25'N, Long: 01deg 53.05'W
Height (amsl): 17 m (56 feet)
COL category: C1 overall