"Martin Rowley" wrote ...
(0800Z report) ... started ~0740Z ... steady slight ... main effect
to dampen roads ... slight / patchy covering tarmac paths ...
visibility reduced due to general haze/mist ~ 4 km: OAT = +0.7°C.
... (0900Z): off and on very light snow much of past hour, but
recently turned to sleet as temperature has come up a little:
current OAT =+1.1°C/DP= -0.6°C, so the wet bulb is highly marginal.
Visibility now up to 8 km; OVC AS (that has thickened), with Sc/St
fra underneath. Most of what little snow there was has melted now.
No impact on roads/paving.


.... (1000Z): PPN past hour has been rain/snow mixed (very light) or
drizzle as temperature has slowly risen ... currently OAT = +1.3°C.
All earlier fragmentary lying snow has melted - all surfaces damp.
Current -RASN. It'll need advection of colder air, or sustained
heavier PPN to give us anything dramatic I suspect.

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023