On 05/01/2013 01:44, Tudor Hughes wrote:
On Jan 4, 12:04 pm, James Brown wrote:
On 04/01/2013 08:21, Eskimo Will wrote:







"Tudor Hughes" wrote in message
...
On Jan 3, 10:45 pm, Adam Lea wrote:
Is the UK currently under the influence of a Bartlett High?

Have just watched the BBC forecast and "events at the top of the
atmosphere" affecting our weather later on and "watch this space" were
mentioned. Consistent with what Will has been saying on here.

Actually it was first mentioned by Ilsington, yet another
Devonian with a geographical monicker. Thus I look forward to hearing
from Bovey Tracey who sounds like an agreeably tipsy young lady.
Would Haytor agree?
I know nothing about SSW's or their correlation with blocking
at a given longitude. I sense a certain straw-clutching. Sorry!
==================

LOL Bovey is gorgeous :-)
Yes my friend Pete from Ilsington talked about the imminent (now
happening) SSW in my thread which I labelled "stratwarm" due to the
earlier warming. It is not straw clutching Tudor it is all about
atmospheric dynamics. SSWs enhance/cause blocking and distort the
longwave pattern. This increases the chances of cold weather in the UK
but does not always happen, it all depends on where everything sits.
At present my view is that the normal Strat polar vortex will split and
negative potential vorticity will thrust north building the Arctic high
ridging south down our longitude roughly. If it comes straight down 0W
then the very cold air will keep to our east over Scandinavia, but it
will all be on a knife-edge!
Professionals like John Hammond are right to be excited, as this SSW
*could* be a particularly big one if model output/diagniostics are to be
believed.

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

And, er, remind me, when did the '47 Winter begin?...;-)- Hide quoted text -

- Show quoted text -

February. I was 4, but dont't remember it. The same could be
said of 1956, which I do remember, and 1986, which I remember even
better. I can't quite see what you're getting at. Surely these
events, whether or not significant, can occur at any time of the
winter?

Tudor Hughes, Warlingham, Surrey.


It was following up the various threads start warming/TV weather
presenters etc who were all hinting at significant cold and the 65 years
ago theme... Ah well, sorry Tudor.

James