So the interest has died away, but nil desperandum ...
FAX - LP ca 1000mb traversing Britain en route from Rockall today to Germany Fri 21st, but shallow, and although it's accompanied by a random selection of fronts, doesn't look like offering any really unsettled weather. But it does switch the wind direction to a cooler northerly.
GFS Op 00z - as the LP forecast by FAX fills, HP moves in from the southwest and builds a ridge of sorts to Scandinavia in the week to Fri 28th. For the Bank Holiday weekend this HP pulls back and another couple of shallow LPs move SE-wards from Iceland, mainly affecting Scotland. Then some real action - an ex-hurricane which appears off the eastern USA Sat 29th tracks across the Atlantic retaining its identity to be positioned 970mb near N Ireland Wed 2nd with disturbed weather and gales for all of Britain. But wait for this to be confirmed before counting on it; it wasn't being shown in yesterday's GFS charts and it's not being shown on the NHC 7-day chart as a developing system.
ECM - like GFS to Mon 24th but the ridge of HP then splits as a shallow trough extends SE-wards from Iceland affecting NW Ireland to Cornwall by Thu 27th (there was a similar tendency in GFS, hence the 'of sorts', but GFS didn't pursue this possibility)
AIFS - London, maxima decreasing to 20C by Sat 22nd with a little (showery?) rain this week, rising again to 23C Wed 26th before falling back to 20C with heavier rain after that date. Edinburgh, similar temp profile but about 3C cooler, a little rain also this week but substantial amounts Fri 28th and Mon 31st.
GEFS - mean temp with good ens support dropping to a little below norm for a week from Wed 19th, then close to norm. Rains possible at any date; in the S light and variable and most likely around Wed 26th; in the N heavy on Thu 18th with a dry-ish slot before resuming on 26th
Originally Posted by: DEW