65% Chance of a white Christmas

White Christmas Forecast Issued: 2009-10-04 20:42:00
Next Forecast: 2009-10-11 18:00:00

Synopsis
This weeks output has been a complete turn around from last week. Almost every day the long range charts have put much of the UK under a very cold airflow and sometimes it has covered all of the UK. Lately it has showed the 528dam line well over the UK and some parts have even been close to the 510dam line which suggests quite a significant area of cold therefore the snow risk increases. The charts have been keen to show the cold particularly just before Christmas with perhaps a breakdown of the cold just after. Rainfall wise, more showery conditions seem likely with these more frequent in the west where LOW Pressure will be most often. If this setup was to come off then quite a significant cold spell would happen but it must be remembered that the situation will have likely changed by next week but based on the trends shown this week, the percentage risk has been raised a very considerable amount. The far SW in this set up would be closer to milder air as well as the south coast but still within a good chance from this setup.