On Fri, 3 Jan 2014 02:01:17 -0800 (PST)
exmetman wrote:

Hi

The latest midnight run of the GFS model shows the first signs at
T+312 (16 January) of a change in type from the current seemingly
unending cyclonic SWl'y to a more of a blocked E'ly with high
pressure building to the NE of Iceland and low pressure belt being
pushed further south into central France. Colder air will obviously
follow if this scenario pans out...



Again? Will it be 2nd time lucky for an easterly forecast from GFS this
winter?

Since Christmas Eve, Matt Hugo has been pointing out that ECMWF was
hinting at a splitting of the stratospheric vortex - not an SSW - and
that this might produce a change of type.


--
Graham P Davis, Bracknell, Berks. Mail: 'newsman' not 'newsboy'.
'Do your bit for climate change this holiday period by restricting your
intake at festive mealtimes to four Brussels sprouts or less.'
@3WhitehallPlace