I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

On Dec 21, 1:05*pm, Dave Cornwell wrote:
I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

I'm guessing the Weatheronline wet-bulb zero level will help here,
shows quite nicely where the wet bulb zero level is close to the
ground. Thaw into Wednesday and then freezing again?

http://www.weatheronline.co.uk/cgi-b...ZOOM=0&PERIOD=

I'm sure Bernard, Martin, Will et al. can elucidate further, not my
area !

Richard

On Tue, 21 Dec 2010 05:09:55 -0800 (PST), Richard Dixon wrote:

On Dec 21, 1:05*pm, Dave Cornwell wrote:
I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

I'm guessing the Weatheronline wet-bulb zero level will help here,
shows quite nicely where the wet bulb zero level is close to the
ground. Thaw into Wednesday and then freezing again?

http://www.weatheronline.co.uk/cgi-b...ZOOM=0&PERIOD=

I'm sure Bernard, Martin, Will et al. can elucidate further, not my
area !

Richard

It reached 0.3C here today, now 0.2C resulting in a few dips from the
gutters as the warmth escaping from the house melts snow.


Alan Gardiner
Chiswell Green, St Albans
101m ASL
21/12/2010 13:19:25
https://sites.google.com/site/alangardinersinfo/

On 21 Dec, 13:05, Dave Cornwell wrote:
I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

It's presently 2.8 deg C with DP of 1.7 deg C at 13.25 here in
Ashford, Kent

On Dec 21, 1:05*pm, Dave Cornwell wrote:
I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

Looks temporary to me, based on GFS data anyway:

Presently, 850mb temps are around -3C in the extreme SE and dewpoints
as high as 4C:
http://www.wzkarten3.de/pics/Rmgfs062.gif
http://www.wzkarten3.de/pics/Rmgfs068.gif

By tomorrow evening both look rather colder although DPs in E Anglia
still seem a bit dodgy:
http://www.wzkarten3.de/pics/Rmgfs332.gif
http://www.wzkarten3.de/pics/Rmgfs338.gif

RK wrote:
On Dec 21, 1:05 pm, Dave Cornwell wrote:
I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

Looks temporary to me, based on GFS data anyway:

Presently, 850mb temps are around -3C in the extreme SE and dewpoints
as high as 4C:
http://www.wzkarten3.de/pics/Rmgfs062.gif
http://www.wzkarten3.de/pics/Rmgfs068.gif

By tomorrow evening both look rather colder although DPs in E Anglia
still seem a bit dodgy:
http://www.wzkarten3.de/pics/Rmgfs332.gif
http://www.wzkarten3.de/pics/Rmgfs338.gif
-----------------
Yes - we have a warm easterly again! It's all fairly obvious from
Richard's chart what's happening at the moment. Continental air ain't
what it used to be - they rely on us these days for the cold from the west!
Dave

On 21/12/10 13:05, Dave Cornwell wrote:
I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

Above zero for the first time in days - it feels positively mild out
there, at a dizzy +1. DP is MS2, so still feels ok - not that raw, damp
cold. Couple of plumbing issues have revealed themselves; related to
outside plumbing such as waste and overflow pipes getting blocked with ice.

Not out of the woods yet though. Look East forecast (Sorry Alex, but you
make a much better general purpose presenter than you do a weather girl)
suggested some possible snow tonight, and Christmas looks icy and foggy
to me.

Pleeeeze can it warm up soon?

On Dec 21, 2:21*pm, Chris Smith wrote:
On 21/12/10 13:05, Dave Cornwell wrote:

I noticed a station in North Norfolk that had -9.8C overnight is now at
1.5C and almost up to 2C down here now. DP's above freezing as well. As
it wasn't forecast is it just a small warm sector passing through or
will any forecast snow fall as rain, in the South anyway?
Dave

Above zero for the first time in days - it feels positively mild out
there, at a dizzy +1. DP is MS2, so still feels ok - not that raw, damp
cold. Couple of plumbing issues have revealed themselves; related to
outside plumbing such as waste and overflow pipes getting blocked with ice.

Not out of the woods yet though. Look East forecast (Sorry Alex, but you
make a much better general purpose presenter than you do a weather girl)
suggested some possible snow tonight, and Christmas looks icy and foggy
to me.

Pleeeeze can it warm up soon?

I know Chris. Getting desperate for some mild rain and the central
heating off! No higher than 1.4C in Teignmouth today and a very slow
thaw. Back to freezing again tonight.