It seems that every time it looks like turning zonal a new blocking
setup seems to develop. Looks like a new block has setup to the SE to
keep much of England mostly dry with mist and fog keeping it cool but
not cold. Almost all November was blocked to the west or SW. These
sorts of blocks never seem to end up in the right place to give any
real cold but they stop the usual west or southwesterly flows. How
long can a period without zonal flow be sustained over England? and
what is causing the block after block patterns.

Simon Sheaf
Sheffield South Yorkshire
http://www.anycities.com/user/yorksh...her/nov04.html

"Simon S" wrote in message
m...
It seems that every time it looks like turning zonal a new blocking
setup seems to develop. Looks like a new block has setup to the SE to
keep much of England mostly dry with mist and fog keeping it cool but
not cold. Almost all November was blocked to the west or SW. These
sorts of blocks never seem to end up in the right place to give any
real cold but they stop the usual west or southwesterly flows. How
long can a period without zonal flow be sustained over England? and
what is causing the block after block patterns.

Usually at this time of year up here days with temps around 10C are
wet or at beast cloudy and damp. The last few days have been
pretty sunny and very pleasant. 'Quiescent' was a good word to
describe it as I heard the other day on the forecast. If we can't have a
cold and snowy winter then a fairly mild but above all *sunny* one would
do me fine. I can't abide the endless cloud and gloom!

Col
--
Bolton, Lancashire.
160m asl.
http://www.reddwarfer.btinternet.co.uk
http://www.reddwarfer.btinternet.co....rPictures.html

"Simon S" wrote in message
m...
It seems that every time it looks like turning zonal a new blocking
setup seems to develop. Looks like a new block has setup to the SE to
keep much of England mostly dry with mist and fog keeping it cool but
not cold. Almost all November was blocked to the west or SW. These
sorts of blocks never seem to end up in the right place to give any
real cold but they stop the usual west or southwesterly flows. How
long can a period without zonal flow be sustained over England? and
what is causing the block after block patterns.

Simon Sheaf
Sheffield South Yorkshire
http://www.anycities.com/user/yorksh...her/nov04.html


It appears to me that zonality wants to break through and to a certain
extent does albeit shifted north into Scandinavia. The Polar jet needs to
undercut the block but at best seems to split resulting in a cut off LP over
the Azores, whilst the European HP cells refuses to significanlty retrogress
towards Greenland. Could it possibly be due to the positive SST anamoly over
the Gin Sea promoting cyclogenesis? Thus preventing what would in previous
decades allow the European HP cell to ridge up and support a Greenland HP?


Regards

Sean B

Simon S wrote:
It seems that every time it looks like turning zonal a new blocking
setup seems to develop. Looks like a new block has setup to the SE to
keep much of England mostly dry with mist and fog keeping it cool but
not cold. Almost all November was blocked to the west or SW. These
sorts of blocks never seem to end up in the right place to give any
real cold but they stop the usual west or southwesterly flows. How
long can a period without zonal flow be sustained over England? and
what is causing the block after block patterns.

Simon Sheaf
Sheffield South Yorkshire
http://www.anycities.com/user/yorksh...her/nov04.html

I would welcome a west to southwesterly zonal pattern at present - even
if that implied mild, wet and windy weather! Anything would be better
than the weeks of boring, grey, nondescript gloom we've been getting
here in East London for well over a month.

From looking at the latest ensembles, I'd say we've got to put up with
it until at least around the 20th.

All the best,

Scott

May bode good for a colder winter. I used to associate mist and fog in
autumn as a precurser of colder weather ahead. Makes a change I guess
:-)


Keith (Southend)

***********************
Weather Home & Abroad
http://www.southendweather.net


On 7 Dec 2004 12:14:36 -0800, (Simon S)
wrote:

It seems that every time it looks like turning zonal a new blocking
setup seems to develop. Looks like a new block has setup to the SE to
keep much of England mostly dry with mist and fog keeping it cool but
not cold. Almost all November was blocked to the west or SW. These
sorts of blocks never seem to end up in the right place to give any
real cold but they stop the usual west or southwesterly flows. How
long can a period without zonal flow be sustained over England? and
what is causing the block after block patterns.

Simon Sheaf
Sheffield South Yorkshire
http://www.anycities.com/user/yorksh...her/nov04.html

Yes I still can recall the fog in 1962 I wasn't able to go to school which I
suppose explains a lot. Don't read too much into the 62 part though as it
lead to a lousy winter :-(






"Keith (Southend)" wrote in message
...
May bode good for a colder winter. I used to associate mist and fog in
autumn as a precurser of colder weather ahead. Makes a change I guess
:-)


Keith (Southend)

***********************
Weather Home & Abroad
http://www.southendweather.net


On 7 Dec 2004 12:14:36 -0800, (Simon S)
wrote:

It seems that every time it looks like turning zonal a new blocking
setup seems to develop. Looks like a new block has setup to the SE to
keep much of England mostly dry with mist and fog keeping it cool but
not cold. Almost all November was blocked to the west or SW. These
sorts of blocks never seem to end up in the right place to give any
real cold but they stop the usual west or southwesterly flows. How
long can a period without zonal flow be sustained over England? and
what is causing the block after block patterns.

Simon Sheaf
Sheffield South Yorkshire
http://www.anycities.com/user/yorksh...her/nov04.html

"s_a_whitehead" wrote in message
oups.com

Anything would be better than the weeks of boring, grey, nondescript
gloom we've been getting here in East London for well over a month.

Be careful what you ask for.

When a series of similar spells even nondescript ones such as these,
follow consecutively; it means that there will be extremely unpleasant
times for someone somewhere on the planet when they break.

What it means (blocking is almost a serendipitous description) is that
the dispersion of the main cause of weather has been channeled
elsewhere. When that corridor opens up again, the first thing that
happens is the pent up energy blows a fuse through the block.

(Speaking as a thaumaturge that is of course.)

I haven't noticed any occlusions developing in the NW Atlantic yet. Mind
you I have not looked. If it follows through over the weekend with no
sign of breaking then it WILL be a biggie when it comes.

Soory about crossposting it to my favourite lunatics abode but it is an
interesting weatherscape. (And I'm getting Mr Angry withdrawal
symptoms.~)


--
Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

"Michael Mcneil" wrote in message
news:d73e301a969af822a2a58d2645863c00.45219@mygate .mailgate.org...
"s_a_whitehead" wrote in message
oups.com

Anything would be better than the weeks of boring, grey, nondescript
gloom we've been getting here in East London for well over a month.

Hey guys - you want to try and understand these conditions from our
perspective (windsurfers), after a glorious windy summer and early autumn -
we're now into our 6th consecutive weekend here on the South Coast with
light winds - the main prevailing winds of 20knts plus from the SW are what
we need - and then to add to the misery they have not had any substantial
snow fall around the Mont Blanc area only in the Southern Alps - Briancon
area....

Regards

www.seaspritesports.com/weatherframe.htm

"WeatherCam" wrote in message


Hey guys - you want to try and understand these conditions from our
perspective (windsurfers), after a glorious windy summer and early autumn -
we're now into our 6th consecutive weekend here on the South Coast with
light winds - the main prevailing winds of 20 knts plus from the SW are what
we need - and then to add to the misery they have not had any substantial
snow fall around the Mont Blanc area only in the Southern Alps - Briancon
area....

Get on yer bike, lad.

Bristol's only darn e'road. Paddle ye' canoe sandwich on e'Severn. Na'
git borin'.



--
Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

"Michael Mcneil" wrote in message
news:d73e301a969af822a2a58d2645863c00.45219@mygate .mailgate.org...


Be careful what you ask for.

When a series of similar spells even nondescript ones such as these,
follow consecutively; it means that there will be extremely unpleasant
times for someone somewhere on the planet when they break.

What it means (blocking is almost a serendipitous description) is that
the dispersion of the main cause of weather has been channeled
elsewhere. When that corridor opens up again, the first thing that
happens is the pent up energy blows a fuse through the block.

If you mean that if we are having higher pressure than normal then
someone else is having lower pressure than normal, then yes

(Speaking as a thaumaturge that is of course.)

There's nothing 'magical' about it!

I haven't noticed any occlusions developing in the NW Atlantic yet. Mind
you I have not looked. If it follows through over the weekend with no
sign of breaking then it WILL be a biggie when it comes.


Not so. Often when a block breaks down the initial front that moves in struggles
and is relatively weak. It's only the next front/system that brings the 'real'
change
and it may be a day or two before a mobile set-up is properly established.

Col
--
Bolton, Lancashire.
160m asl.
http://www.reddwarfer.btinternet.co.uk
http://www.reddwarfer.btinternet.co....rPictures.html