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Forecast advance of precip. seems to have slowed and 06Z GFS is marginally
colder than 00Z run at same times. I wonder if pressure falls are running down
the front taking out some of the gradient? It would make sense in the right
entrance and down the warm side of the thermal jet. Pressure is still falling
slowly here in Haytor, but the sky is brightening and radar shows little advance
east of precip. Also noticed that MetO web forecast now has sleet for SW rather
than the rain symbol shown earlier.
Mind you temperature is creeping up with an east wind, now -0.3 deg C at 1045
GMT. Haytor is quite representative of the true air mass at 1000 feet asl. Lower
down it may be colder due to cold air being trapped, like in the Exe Valley for
example. I wonder if freezing rain is on the cards now?
I'd love to see a tephigram of my area :-) Anyway no doubt the precip. will
eventually arrive and it still looks like the heavier stuff may be in the warmer
air.

PS usual weekly forecast from Haytor will be issued tomorrow morning, hopefully
by then we will have a better idea of the next easterly.

Will.
--

" Ah yet another day to enjoy "
-------------------------------------------------------------------------------
A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

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

DISCLAIMER - All views and opinions expressed by myself are personal
and do not necessarily represent those of my employer.
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"Will Hand" wrote in
:

Pressure is still falling slowly here in Haytor, but the
sky is brightening and radar shows little advance east of precip. Also
noticed that MetO web forecast now has sleet for SW rather than the
rain symbol shown earlier. Mind you temperature is creeping up with an
east wind, now -0.3 deg C at 1045 GMT. Haytor is quite representative
of the true air mass at 1000 feet asl. Lower down it may be colder due
to cold air being trapped, like in the Exe Valley for example. I
wonder if freezing rain is on the cards now? I'd love to see a
tephigram of my area :-) Anyway no doubt the precip. will eventually
arrive and it still looks like the heavier stuff may be in the warmer
air.

Passed on to my sister staying at Ilsington, Will. She's been peppering me
with weather forecast requests!

Richard

Will

Haytor is quite representative of the true air mass at 1000 feet asl.
Lower down it may be colder due to cold air being trapped, like in the Exe
Valley for example. I wonder if freezing rain is on the cards now?

Here in the Exe Valley, the temperature is now rising quickly after a very
chilly start, currently -1.1C at 11:00. The frost is disappearing off the
cars and grass as I write. As this rate it should be above freezing in 20
minutes or so.
________________
Nick G
Exe Valley, Devon
50 m amsl

"Richard Dixon" wrote in message
...
"Will Hand" wrote in
:

Pressure is still falling slowly here in Haytor, but the
sky is brightening and radar shows little advance east of precip. Also
noticed that MetO web forecast now has sleet for SW rather than the
rain symbol shown earlier. Mind you temperature is creeping up with an
east wind, now -0.3 deg C at 1045 GMT. Haytor is quite representative
of the true air mass at 1000 feet asl. Lower down it may be colder due
to cold air being trapped, like in the Exe Valley for example. I
wonder if freezing rain is on the cards now? I'd love to see a
tephigram of my area :-) Anyway no doubt the precip. will eventually
arrive and it still looks like the heavier stuff may be in the warmer
air.

Passed on to my sister staying at Ilsington, Will. She's been peppering me
with weather forecast requests!

Richard

Richard according to GFS Haytor should see a spell of snow this afternoon,
turning to rain this evening. She will need to get some altitude though,
Isington will be borderline for lying snow. Hay Tor some 200m higher will
obviously be better.

Good luck!

Will.
--

" Ah yet another day to enjoy "
-------------------------------------------------------------------------------
A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

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

DISCLAIMER - All views and opinions expressed by myself are personal
and do not necessarily represent those of my employer.
-------------------------------------------------------------------------------