On Tuesday 09 Feb 2010 23:01, Alastair scribbled:

Dr Roy Spencer has posted a map of the global temperatures in the
lower troposphere measured by satellite he
http://www.drroyspencer.com/2010/02/...-tropospheric-
temperature-map/
It shows a cold USA and Europe but a warm Canada and Arctic.

I thought that the warm Arctic might be causing the cold Europe, but
could not see how.

He has also included a map from the previous El Nino which is similar
to this one, so it seems that the current El Nino is causing the warm
Arctic and cold Europe! I think when El Nino peaks (Jan = yes, Apr =
no) may be a crucial factor in determining whether we get snow.


More importantly I think than El Nino, the Atlantic pattern was similar to
the current one with a cold pool south of 40N 40W. Mind you, perhaps the two
patterns are related?

--
Graham P Davis, Bracknell, Berks., UK. E-mail: newsman not newsboy
"I wear the cheese. It does not wear me."