"JPG" schreef in bericht
Not much momentum in the stratosphere I would have thought, given the
low pressures, so my "first principles" thinking would suggest that
the influence of stratospheric winds would not be very significant.

Maybe this sites can give you some information on the subject:
http://www.aero.jussieu.fr/%7Esparc/
http://www.gsfc.nasa.gov/topstory/20...ndsurface.html

The KNMI (Dutch Met Office) gives long-term-winter forecasts by the end of
October based on the average temperature on 16 km level (48.000 feet) in the
North of America (over Alaska to Greenland). (In terms of: normal; colder
than normal or warmer than normal). There seems to be a positive correlation
between that average temperature and the average winter temp in North
Western Europe.
Further research is on :-))) -- oh, well, researching is a never-ending
story!!

Wijke