Summer is over - well, a bit of a possible downgrade in ten days' time
Jetstream forecast hasn't given up as I hoped yesterday, but is rather augmented. Not much action in the coming week, but a strong coherent jet appears N of Scotland Sat 12th and moves S-wards to be across N England Tue 15th. It then encourages a period of N-ly winds by forming a loop with the UK on the 'wrong' side and by Sun 20th there is a strong jet running N_S across all UK on the trailing edge of the loop.
GFS - current benign and generally HP re-establishes over the weekend after some LP affecting the edges of UK to NW and SE, lasting to Tue 15th when LP moves across N England to sit over Scandinavia with cool N-lies lasting until some recovery on Sun 20th
GEFS - a period of generally rising temps in most runs to Mon 14th when the majority show a downgrade, some quickly and some slowly, and mean is down to or a little below norm from Thu 17th, More rain about than yesterday but in small amounts and not focused on any particular date.
ECM - only goes up to Mon 14th but at that time has strengthened the HP (1035mb N Ireland) and doesn't look as if the breakdown suggested by GFS is imminent
Originally Posted by: DEW