I shall be pin-pointing Sunday in my weekly forecast as a potential day for
disruptive snow. Not just on hills but eventually for low-lying populated
areas too.

A major trough disruption is about to take place, all models are keen on it.
Initially the air will be too warm for lowland snow and there will be quite
a bit of rain. But as the disruption gets underway, winds will fall light as
the trough stretches and precip. will persist. The warmer air will occlude
out and in the light winds latent heat processes with melting snowflakes
will hasten a cooling process and the wet-bulb freezing level will come down
rapidly. This process most likely Sunday afternoon and evening. Sunset also
obviously aiding the temperature fall. So a period of moderate or heavy snow
in bands then slowly petering out. One to watch and one where tangerine
warnings will be issued in due course by UKMO. Who gets what and when will
have to wait of course.

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

In article ,
Eskimo Will writes:
I shall be pin-pointing Sunday in my weekly forecast as a potential
day for disruptive snow. Not just on hills but eventually for low-
lying populated areas too.

A major trough disruption is about to take place, all models are
keen on it. Initially the air will be too warm for lowland snow and
there will be quite a bit of rain. But as the disruption gets
underway, winds will fall light as the trough stretches and precip.
will persist. The warmer air will occlude out and in the light winds
latent heat processes with melting snowflakes will hasten a
cooling process and the wet-bulb freezing level will come down
rapidly. This process most likely Sunday afternoon and evening.
Sunset also obviously aiding the temperature fall. So a period of
moderate or heavy snow in bands then slowly petering out. One to
watch and one where tangerine warnings will be issued in due
course by UKMO. Who gets what and when will have to wait of
course.

Will

I'm starting to fantasise about a repeat of the Christmas snowstorm of
1927, where in SE England rain turned to snow around dusk on Christmas
Day which continued overnight and into Boxing Day, with the snow being
whipped into deep drifts by gale-force north-easterly winds. OK, very
unlikely to be repeated, but not beyond the bounds of possibility, the
way the models look this morning.
--
John Hall

"Whenever people agree with me I always feel I must be wrong."
Oscar Wilde

Will is that the same trough that slips southward past the Alps and into the Med? I'm getting quite excited about this, it could bring a good blast of Snow to the French Alps, were hopefully I'll be next week!


On Thursday, 7 February 2013 08:49:55 UTC, wrote:
I shall be pin-pointing Sunday in my weekly forecast as a potential day for

disruptive snow. Not just on hills but eventually for low-lying populated

areas too.



A major trough disruption is about to take place, all models are keen on it.

Initially the air will be too warm for lowland snow and there will be quite

a bit of rain. But as the disruption gets underway, winds will fall light as

the trough stretches and precip. will persist. The warmer air will occlude

out and in the light winds latent heat processes with melting snowflakes

will hasten a cooling process and the wet-bulb freezing level will come down

rapidly. This process most likely Sunday afternoon and evening. Sunset also

obviously aiding the temperature fall. So a period of moderate or heavy snow

in bands then slowly petering out. One to watch and one where tangerine

warnings will be issued in due course by UKMO. Who gets what and when will

have to wait of course.



Will

--

http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm

Will Hand (Haytor, Devon, 1017 feet asl)

---------------------------------------------

"Alan (North West Surrey)" wrote in message
...
Will is that the same trough that slips southward past the Alps and into
the Med? I'm getting quite excited about this, it could bring a good blast
of Snow to the French Alps, were hopefully I'll be next week!


Basically yes you lucky so an so!

Will
--

The ECMWF has been quite good at handling this, also the UK met. But the GFS has been all over the place, over disrupting it much further west, or just ploughing it straight eastwards. Very interesting.


On Thursday, 7 February 2013 10:15:19 UTC, wrote:
"Alan (North West Surrey)" wrote in message

...

Will is that the same trough that slips southward past the Alps and into

the Med? I'm getting quite excited about this, it could bring a good blast

of Snow to the French Alps, were hopefully I'll be next week!





Basically yes you lucky so an so!



Will

--

John Hall wrote:

I'm starting to fantasise about a repeat of the Christmas snowstorm of
1927, where in SE England rain turned to snow around dusk on Christmas
Day which continued overnight and into Boxing Day, with the snow being
whipped into deep drifts by gale-force north-easterly winds. OK, very
unlikely to be repeated, but not beyond the bounds of possibility, the
way the models look this morning.
------------------------------------------------
I knew you were a bit older than me John but ..... ;-)

On Thursday, 7 February 2013 10:04:10 UTC, John Hall wrote:
In article ,

Eskimo Will writes:

I shall be pin-pointing Sunday in my weekly forecast as a potential

day for disruptive snow. Not just on hills but eventually for low-

lying populated areas too.



A major trough disruption is about to take place, all models are

keen on it. Initially the air will be too warm for lowland snow and

there will be quite a bit of rain. But as the disruption gets

underway, winds will fall light as the trough stretches and precip.

will persist. The warmer air will occlude out and in the light winds

latent heat processes with melting snowflakes will hasten a

cooling process and the wet-bulb freezing level will come down

rapidly. This process most likely Sunday afternoon and evening.

Sunset also obviously aiding the temperature fall. So a period of

moderate or heavy snow in bands then slowly petering out. One to

watch and one where tangerine warnings will be issued in due

course by UKMO. Who gets what and when will have to wait of

course.



Will



I'm starting to fantasise about a repeat of the Christmas snowstorm of

1927, where in SE England rain turned to snow around dusk on Christmas

Day which continued overnight and into Boxing Day, with the snow being

whipped into deep drifts by gale-force north-easterly winds. OK, very

unlikely to be repeated, but not beyond the bounds of possibility, the

way the models look this morning.

--

John Hall



"Whenever people agree with me I always feel I must be wrong."

Oscar Wilde

Blimey John . sounds like you were there when it happened.

On Thursday, 7 February 2013 08:49:55 UTC, wrote:
I shall be pin-pointing Sunday in my weekly forecast as a potential day for

disruptive snow. Not just on hills but eventually for low-lying populated

areas too.



A major trough disruption is about to take place, all models are keen on it.

Initially the air will be too warm for lowland snow and there will be quite

a bit of rain. But as the disruption gets underway, winds will fall light as

the trough stretches and precip. will persist. The warmer air will occlude

out and in the light winds latent heat processes with melting snowflakes

will hasten a cooling process and the wet-bulb freezing level will come down

rapidly. This process most likely Sunday afternoon and evening. Sunset also

obviously aiding the temperature fall. So a period of moderate or heavy snow

in bands then slowly petering out. One to watch and one where tangerine

warnings will be issued in due course by UKMO. Who gets what and when will

have to wait of course.



Will

--

http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm

Will Hand (Haytor, Devon, 1017 feet asl)

---------------------------------------------

Oh no Transport for London will stop the buses again-never mind Thank F for the Hoister Cards , eh?

In article ,
Dave Cornwell writes:
John Hall wrote:

I'm starting to fantasise about a repeat of the Christmas snowstorm of
1927, where in SE England rain turned to snow around dusk on Christmas
Day which continued overnight and into Boxing Day, with the snow being
whipped into deep drifts by gale-force north-easterly winds. OK, very
unlikely to be repeated, but not beyond the bounds of possibility, the
way the models look this morning.
------------------------------------------------
I knew you were a bit older than me John but ..... ;-)



One doesn't have to have been alive for a weather event to have learnt
about it. I would also be happy to rabbit on about the snowstorms of
January 1881 and February 1891.
--
John Hall

"Whenever people agree with me I always feel I must be wrong."
Oscar Wilde

In article ,
Lawrence13 writes:
On Thursday, 7 February 2013 10:04:10 UTC, John Hall wrote:
In article ,

Eskimo Will writes:

I shall be pin-pointing Sunday in my weekly forecast as a potential

day for disruptive snow. Not just on hills but eventually for low-

lying populated areas too.



A major trough disruption is about to take place, all models are

keen on it. Initially the air will be too warm for lowland snow and

there will be quite a bit of rain. But as the disruption gets

underway, winds will fall light as the trough stretches and precip.

will persist. The warmer air will occlude out and in the light winds

latent heat processes with melting snowflakes will hasten a

cooling process and the wet-bulb freezing level will come down

rapidly. This process most likely Sunday afternoon and evening.

Sunset also obviously aiding the temperature fall. So a period of

moderate or heavy snow in bands then slowly petering out. One to

watch and one where tangerine warnings will be issued in due

course by UKMO. Who gets what and when will have to wait of

course.



Will



I'm starting to fantasise about a repeat of the Christmas snowstorm of

1927, where in SE England rain turned to snow around dusk on Christmas

Day which continued overnight and into Boxing Day, with the snow being

whipped into deep drifts by gale-force north-easterly winds. OK, very

unlikely to be repeated, but not beyond the bounds of possibility, the

way the models look this morning.

Blimey John . sounds like you were there when it happened.

You're the second person to say that.
--
John Hall

"Whenever people agree with me I always feel I must be wrong."
Oscar Wilde