South West England Cold Spell Discussion

[Nights King]

Well i am freezing in this house at the moment sat here in my thermals, heating is maxed and it is strugging at times.

Washing machine is frozen as well as the conservatory toilet I have never seen icicles that big round our house i will have to take photo in morning i think some are nearly a foot long!

I think the cold air in place will be harder to move than last cold spell because it is far more entrenched and it was never really that cold first time in december.

temperature -4c and cloudy with odd flake in air.

[dogs32]

No, They mean buried treasure.

so explain the symbols

Blue is heavy snow..

and Black X IS...?

Green is RAIN

Edited January 9, 2010 by dogs32

[BARRY]

Radar echoes coming out of nowhere in Devon, looks like some snow north of Exeter.

Amazing the way they just appeared, Just had a look outside and it snowing lightly

Edited January 9, 2010 by BARRY

[Nights King]

Does that GM correlate with the precipitation intensity colours like the NAE? All the ppt. looks blue - would that indicate light ppt. or is the intensity shown by the size of the icons?

It is the size that indicates intensity i think and different type of rain/sleet/snow type is symbols.

Edited January 9, 2010 by mullender83

[NickSomerset]

Radar 19.25. Some thing def developing over Deb(v)on way

[dogs32]

Matt x's are snow correct?

light snow at that or moderate

[Ian Fergusson]

Right: just received latest modified GM fields for the 2-3day period. I'm not posting it here for now as it's fresh (modified) data but just take my word for it; there's a real potential for a significant event to brew across much of our region (includes you folk further down on - and inland on - the SW Peninsula) later Tuesday PM into Wed and it's a fascinating evolution we're likely to witness play-out. Eyes on this one, folks, and keep reading some of the expert views on the model thread.

(PS - French Arpege supports this broad theme)

Edited January 9, 2010 by Ian Fergusson

[snowking]

Thanks as ever for the charts Ian

Before I head up the pub to stop myself going crazy just watching the radar over and over again, some stunning FAX output this evening if snow's your thing

http://www.meteociel.fr/ukmo/fax/fax36s.gif

In the shorter term we see the front wrap back round and stay pretty much along the centre of wales and back towards bristol and somerset

http://www.meteociel.fr/ukmo/fax/fax48s.gif

Still there 12 hours later

Then as we head towards the big talking point tonight - the atlantic intrusion

http://www.meteociel.fr/ukmo/fax/fax72s.gif

An almost perfect angle of attack (away from the immediate extremities) for some frontal snowfall from the atlantic in these situations, with very little modification of the cold pool thanks to the draw of SE'lies ahead of the front

Ian out of interest is is the fact that the flakes in powder snow are physically smaller that makes the radar struggle to pick things up or is it something else?

Regards

SK

[dogs32]

Radar 19.25. Some thing def developing over Deb(v)on way

yes there seems to be alot of development also up North on radar

edit..

cheers Ian for the update

Edited January 9, 2010 by dogs32

[jay1lk]

Appears to intensify a little as its coming across

Edited January 9, 2010 by jay1lk

[Dartmoor_Matt]

Matt x's are snow correct?

light snow at that or moderate

I think so... not 100% sure, I just assumed it was snow as it showed the same symbols over Scandanavia where its unlikely to be rain right?

Its also snowing here!

Lightly, but definately snow.

[NickSomerset]

Appears to intensify a little as its coming across

Yes, agree. but needs to be alittle more to the East..

[BARRY]

Well it's defiantly snowing here

[yipikiaye]

Earlier i got accused of being a ramper.Now u see why i got excited over the prospects for the next few days

Edited January 9, 2010 by yipikiaye

[Dartmoor_Matt]

Well it's defiantly snowing here

Glad your getting some snow down your way! A rare beast these days?

[dogs32]

I think so... not 100% sure, I just assumed it was snow as it showed the same symbols over Scandanavia where its unlikely to be rain right?

Its also snowing here!

Lightly, but definately snow.

cheers Matt

I asked you because Ian told you the other day,but couldnt quite remember..

looking nasty realy

Edited January 9, 2010 by dogs32

[Ian Fergusson]

Thanks as ever for the charts Ian

Before I head up the pub to stop myself going crazy just watching the radar over and over again, some stunning FAX output this evening if snow's your thing

http://www.meteociel.../fax/fax36s.gif

In the shorter term we see the front wrap back round and stay pretty much along the centre of wales and back towards bristol and somerset

http://www.meteociel.../fax/fax48s.gif

Still there 12 hours later

Then as we head towards the big talking point tonight - the atlantic intrusion

http://www.meteociel.../fax/fax72s.gif

An almost perfect angle of attack (away from the immediate extremities) for some frontal snowfall from the atlantic in these situations, with very little modification of the cold pool thanks to the draw of SE'lies ahead of the front

Ian out of interest is is the fact that the flakes in powder snow are physically smaller that makes the radar struggle to pick things up or is it something else?

Regards

SK

Hi, less compaction with the powder snow hence accumulations tend to be greater (even 2 - 4 times raw PPN modelling)

[snowking]

cheers Matt

I asked you because Ian told you the other day,but couldnt quite remember..

looking nasty realy

This might help anyone struggling with the symbols

http://www.knology.net/res0plht/weather_symbolsNEW2.gif

Not sure its 100% correlative with the MetO output but most of it is there - and yes i assume the x's are lighter snowfall

Hi, less compaction with the powder snow hence accumulations tend to be greater (even 2 - 4 times raw PPN modelling)

Ahh i see! Thanks for clearing that up

SK

[jazzy]

Hi, just on the South Devon coast temp 0.1 dew point -6 The radar shows blobs heading our way, currently dandruffy stuff blowing around, hoping we get some more snow tonight/tomorrow. Popped to Sainsbury's earlier and it was one in and one out, My mum went to Morrisons and they were out of bread, milk and eggs, am hoping the general public know something that I don't !!!!!!!!!!!!!

[Dartmoor_Matt]

cheers Matt

I asked you because Ian told you the other day,but couldnt quite remember..

looking nasty realy

Yeah that was re the colours.

Was a different chart though? Not sure. Anyway, yup looks like it could be an interesting time ahead.

[NickSomerset]

Here's the 19.35 Radar. need it to pep'up a bit more...

[Paul T]

Well it's defiantly snowing here

Nice one!

Now youve had your turn - Pass it along please Barry,

Paul

[dogs32]

cheers SK and Matt

looking like a winter we wont forget in a hurry

[BARRY]

Hi, just on the South Devon coast temp 0.1 dew point -6 The radar shows blobs heading our way, currently dandruffy stuff blowing around, hoping we get some more snow tonight/tomorrow. Popped to Sainsbury's earlier and it was one in and one out, My mum went to Morrisons and they were out of bread, milk and eggs, am hoping the general public know something that I don't !!!!!!!!!!!!!

where about are you in devon

[biggiemauls]

This is exciting! I can't wait to see what the week brings!