On 11/02/2013 13:07, Scott W wrote:
On Feb 11, 10:37 am, George Booth wrote:
What a palaver.
General level depth 11cm of wet, crunchy, snow. Lower depth than January
but that was 'dry' and blowing around.
Now, the rainfall+rainfall equivalent (several samples+gentle hair
dryer) to 0900 today comes to 23.4mm which makes the 10th the wettest
February day here since 1990. Note-I ignore AWS measurements in these
conditions.
Davis anemometer packed up about 2300 last night, hopefully this is just
bunged up with caked snow. Don't fancy going up the ladder in this weather.
Still snowing at 1033 but lighter and brighter
--
George in Epping, west Essex, 350'aslwww.eppingweather.co.ukwww.winter1947.co.uk

There must've been a fair bit of enhancement at your elevation, George
- only 14.6mm here in Wanstead - and only 4.5cm level wet snow cover.
My daughter played rugby at Upland Road, Epping, yesterday, and I
noticed how much heavier the rain was there. Driving back to Wanstead
at 1.30pm the rain was much lighter, almost drizzle. The pitch was
like a quagmire so wonder if the rain had been heavy yesterday morning
too


Whether it is enhancement or other dynamics of precipitation forming
processes I can't say. Certainly late yesterday evening the snow was
continuous, moderate to heavy in intensity. When I looked out again at
daybreak it was definitely in the heavy category with larger flakes as
well and continued like this for a couple of hours. Looking at the
Weatheronline radar isn't much help as it has no precipitation here at
timeswhen it was tipping down outside. However from what I can see this
area was right on the eastern margin of heavier precipitation, which,
combined with the altitude led to the significant snowfall. But, as
others have pointed out, it was all there in the UKMO forecast.
When I retired to bed last night I couldn't sort out why there was a
distant pile driver being operated. Mind you, you never know in Epping.
Eventually realised that the frequency of the noise, which was getting
louder, coincided with the wind and that the well exposed anemometer
unit, was being coated in ice/wet snow which was presumably introducing
a note of asymmetry. Eventually there was silence and the wind readings
stopped. Glad to say that we now have wind again after the temperature
reached +0.3°

BTW the rugby club just 1 mile from here across the fields. Boulder Clay
(Lowestoft Till) on top of London Clay - not good in winter

--
George in Epping, west Essex, 350'asl
www.eppingweather.co.uk
www.winter1947.co.uk