Yep that run clearly shows the jest sinking south, the wavelength
increasing, warm southerly low ertel potential vorticity air thrusting
northwards at T+168 to T+192 developing high pressure to our east. The high
to the north of Novoya Zemla may have a different cause in that run. We may
be homing in on this time next week for the end of the zonality.

Will
--

"Western .Sky" wrote in message
...
JMA looks similar...
http://www.wetterzentrale.de/pics/Rjma1921.gif

On 01/02/2011 7:27 PM, John Hall wrote:
In ,
Western writes:
http://www.wzkarten3.de/pics/Recm2401.gif

and whats that to N.E?

Yes, I've just been looking at that. Whether that anticyclone will
subsequently develop enough to bring cold weather into the UK is
unclear. The ensemble isn't out yet, but it will be interesting to see
if it supports the operational run. Of course it's only one run. It
could be the first sign of a change, or it could be something that has
vanished by the next run. The latter is probably rather more likely than
the former at this stage.