Stratwarms and cold weather
 

http://www.metoffice.gov.uk/news/rel...inter-guidance
http://metofficenews.wordpress.com/2...pe-and-the-uk/

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

Stratwarms and cold weather
 

On Sunday, December 16, 2012 1:43:48 PM UTC, wrote:
http://www.metoffice.gov.uk/news/rel...inter-guidance

http://metofficenews.wordpress.com/2...pe-and-the-uk/



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

Will Hand (Haytor, Devon, 1017 feet asl)

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

thanks you Will. After reading and learning from these, I doubt you will be as willing to draw such strong links to SSW's and especially to very weak ones, ("stratwarm" is a term used nowhere in the article, or the blog). I could be wrong on that, of course.

If you wish me to post the same papers again that I've linked to before, explaining SSW's and their effects on surface conditions in more detail, to help you, I'm willing to do so. They are easily researched.

Stratwarms and cold weather
 

thanks you Will. After reading and learning from these, I doubt you will be as willing to draw such strong links to SSW's and especially to very weak ones, ("stratwarm" is a term used nowhere in the article, or the blog). I could be wrong on that, of course.


In the 1st link that Will provided by the Met Office:

The new model, dubbed the "high top" system, is different from the previous system as it takes into account something known as sudden stratospheric warming's (SSWs) - which have previously been shown to be responsible for cold conditions at ground level.

SSWs happen when the usual westerly winds in the stratosphere, between 10km and 50km up, break down and ultimately reverse.

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

Maybe dear pupil you should read the detail before lecturing & trying to offer the teacher advice.

Stratwarms and cold weather
 

On Sun, 16 Dec 2012 13:43:48 -0000
"Eskimo Will" wrote:

http://www.metoffice.gov.uk/news/rel...inter-guidance
http://metofficenews.wordpress.com/2...pe-and-the-uk/

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


And here's one that appeared a few days before the "beast from the
east."

http://metofficenews.wordpress.com/2...er-atmosphere/


--
Graham P Davis, Bracknell, Berks.
Time flies like an arrow but fruit flies like a banana. [Marx]

Stratwarms and cold weather
 

On Sunday, December 16, 2012 6:39:36 PM UTC, Teignmouth wrote:


thanks you Will. After reading and learning from these, I doubt you will be as willing to draw such strong links to SSW's and especially to very weak ones, ("stratwarm" is a term used nowhere in the article, or the blog).. I could be wrong on that, of course.





In the 1st link that Will provided by the Met Office:



The new model, dubbed the "high top" system, is different from the previous system as it takes into account something known as sudden stratospheric warming's (SSWs) - which have previously been shown to be responsible for cold conditions at ground level.



SSWs happen when the usual westerly winds in the stratosphere, between 10km and 50km up, break down and ultimately reverse.


Errrrrr yes. We all know the atmospheric signatures of strong SSWs. We also know that the MetO have changed their models and incorporated strong SSWs in their forecasting. So your point is about the effects of the weak SSW that Will got hopelessly wrong? Will understands exactly what I mean. A pity you don't.

Stratwarms and cold weather
 

Graham P Davis wrote:
On Sun, 16 Dec 2012 13:43:48 -0000
"Eskimo Will" wrote:

http://www.metoffice.gov.uk/news/rel...inter-guidance
http://metofficenews.wordpress.com/2...pe-and-the-uk/

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


And here's one that appeared a few days before the "beast from the
east."

http://metofficenews.wordpress.com/2...er-atmosphere/


---------------------------------
Well if it does help cold spells develop it either wasn't there this
time or had the complete opposite effect on our weather. Or - is it
responsible for the HP and cold over Europe only?
Dave

Stratwarms and cold weather
 

"Dawlish" wrote in message
...
On Sunday, December 16, 2012 6:39:36 PM UTC, Teignmouth wrote:


thanks you Will. After reading and learning from these, I doubt you will
be as willing to draw such strong links to SSW's and especially to very
weak ones, ("stratwarm" is a term used nowhere in the article, or the
blog). I could be wrong on that, of course.





In the 1st link that Will provided by the Met Office:



The new model, dubbed the "high top" system, is different from the
previous system as it takes into account something known as sudden
stratospheric warming's (SSWs) - which have previously been shown to be
responsible for cold conditions at ground level.



SSWs happen when the usual westerly winds in the stratosphere, between
10km and 50km up, break down and ultimately reverse.


Errrrrr yes. We all know the atmospheric signatures of strong SSWs. We also
know that the MetO have changed their models and incorporated strong SSWs in
their forecasting. So your point is about the effects of the weak SSW that
Will got hopelessly wrong? Will understands exactly what I mean. A pity you
don't.

==========================

The point is, is that even relatively weak or shortlived warmings will
decrease the zonal wind and if there is an existing block that will help
prolong it. It is no coincidence that the last block retreated eastwards in
the models when the stratwarm ceased.

Will
--

Stratwarms and cold weather
 

"Dave Cornwell" wrote in message
...
Graham P Davis wrote:
On Sun, 16 Dec 2012 13:43:48 -0000
"Eskimo Will" wrote:

http://www.metoffice.gov.uk/news/rel...inter-guidance
http://metofficenews.wordpress.com/2...pe-and-the-uk/

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


And here's one that appeared a few days before the "beast from the
east."

http://metofficenews.wordpress.com/2...er-atmosphere/


---------------------------------
Well if it does help cold spells develop it either wasn't there this time
or had the complete opposite effect on our weather. Or - is it responsible
for the HP and cold over Europe only?
Dave

See my last reply Dave.

Will
--

Stratwarms and cold weather
 

On Sunday, 16 December 2012 17:10:32 UTC, Dawlish wrote:

If you wish me to post the same papers again that I've linked to before, explaining SSW's and their effects on surface conditions in more detail, to help you, I'm willing to do so. They are easily researched.

Dear Dave,

I am not anti Dawlish and you do come up with valid points. But I am finding this continual snipping at Will both disrespectful and unnecessary. I have been following this newsgroup for around 15 years and have learnt huge amounts from the various professional and other contributors to this group. Will is unique in his attitude of sharing any unusual and potentially dangerous weather events that appear on the horizon. Most forecasters are reluctant to post, fearing ridicule if they do not materialise. To loose Will on here would mean the demise of "on the edge" knowledgeable warnings and discussions. I always take a squint at Darren Prescotts excellent 7 day summary of the charts. There are other retired meteorologists on here who pop by with their input. I am still trying to fathom the earthquake/weather connection with weatherlawyers ramblings (often to himself it seems), but worth a read. Lawrence keeps his head down these days, but he has relevant views. I remember some time ago there was some sort of expose on you that seemed to suggest that you are a school teacher in Dawlish, which I have no problem with. I am just interested about your meteorological background so that when you post your comments on here, that give the impression that you have or have had some meteorology training. It would just help me in evaluating your replies to Will's and other posts. I just find it incredibly tedious when it all starts getting personnel and ranty, so hopefully this won't happen this time.

Yours respectively,

Mike McMillan

Stratwarms and cold weather
 

On 16/12/12 19:14, Dave Cornwell wrote:
Graham P Davis wrote:
On Sun, 16 Dec 2012 13:43:48 -0000
"Eskimo Will" wrote:

http://www.metoffice.gov.uk/news/rel...inter-guidance

http://metofficenews.wordpress.com/2...pe-and-the-uk/


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

And here's one that appeared a few days before the "beast from the
east."

http://metofficenews.wordpress.com/2...er-atmosphere/



---------------------------------
Well if it does help cold spells develop it either wasn't there this
time or had the complete opposite effect on our weather. Or - is it
responsible for the HP and cold over Europe only?
Dave

It was pretty cold last week, I think on Wednesday it didn't get above
freezing in my location.