I've just looked at the air pressure ensembles for the GFS 00z for Suffolk: http://cirrus.netweather.tv/ensimages/ens.20100207/00/prmslSuffolk.png High, Medium or Low. Take your pick. To my eyes, this could still go very much either way. And that is why we need to be cautious, the extreme cold pool may just stay out in the North Sea.