"Nick Gardner" wrote in message
news
Retrogression has been a consistent theme now in the models for past 24
hours allowing a cyclonic very cold northerly (originating where sea
anomalies are negative)

Will,

Where in the eastern half of North Atlantic are the SST's anomaly negative?

I've just looked at:

https://www.fnmoc.navy.mil/ncoda_web...lobal_anom.gif

And it seems to my untrained eye that the whole of the eastern North
Atlantic has a +ve temperature anomaly. More interestingly, apart from the
tropical Pacific areas and smaller areas here and there, most of the rest of
the world seems to have a +ve SST anomaly.
________________
Nick G
Otter Valley, Devon
83 m amsl
http://www.ottervalley.co.uk


Not sure about that source but the analysis I saw yesterday (dated 23rd not the
9th) had a negative anomaly of 0 to 1 degrees between Iceland and Norway (north
of Faeroes).

Latest runs today indicate that the retrogression is still well signalled,
although, of course details oscillate at that range. So I'm pretty sure we are
in for a change to a much colder and more wintry type later next week. Northern
and western areas will see most wintry precip. with some west in the wind. Upper
pattern is right for long wave retrogression.

Will
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