WX temps show the area of cold air over NE Russia consolidating and in week 2 beginning to spread its influence into Europe with freezing conditions appearing over the Alps, while the mild weather around Biscay & Iberia retreats S-wards. Britain and France above norm to start with but cooling in week 2. Very dry from Turkey to Britain in week1, but an area of heavy rain develops in the Tyrrhenian Sea in week 2, and also the N Atlantic begins to get wetter. Britain loses the very dry weather but becomes damp rather than wet.
GFS Op - HP persists over or just to the east of Britain until Thu 14th but with Atlantic LP close enough to produce S-ly gales at times in the west esp Fri 8th. From Fri 15th HP is positioned either side of Britain but at a distance with a shallow LP running S from Iceland reaching Cornwall 1005mb Sat 16th and becoming established as an extended trough Portugal - N Sea - Norway.
ECM - like GFS but with an extra dose of S-ly gales for the NW Sun 10th
GEM - like GFS but S-lies less strong as LP is further off on the Atlantic
GEFS - [not loading on TWO today so shorter summary from Wetterzentrale] - temps very mild at first slowly declining to norm around Fri 15th with good ens agreement until about Fri 8th; by end of run a wide variation. Rain in various ens members for most of Britain from Fri 8th but not consistent and some runs remain dry, however more likely than shown yesterday and quite heavy and persistent in the far NW
Originally Posted by: DEW