FAX - Today's HP 1018mb moving on eastwards. By Sun 15th LP 988mb with a complex mass of fronts covers Britain with a trough linking to N Norway and Arctic N-lies on its western flank. By Tue 17th this has moved on to Sweden but dangling a trough across S England behind it linking to LP 974mb mid-Atlantic (the 'arc' of LP referred to yesterday)
GFS Op - like FAX but the trough over S England has a more definite centre at 974mb. All the LP moves on to congregate over Sweden, leaving a brief ridge of HP for Britain Fri 20th. The next LP is a shallow 995mb running along the Channel Sun 22nd, and then a deeper one sitting W of Ireland 980mb Wed 25th with S/SE-lies for Britain. This drops S-wards and fills leaving a fine weekend for the whole country with HP 1030mb Sun 29th. AMENDED on the 06z as the final LP persists after moving south and takes up a position over N France with E-lies for England on the 29th; any HP stays up near Iceland
ECM - differs from the above once Sunday's LP has moved on; on Tue 17th the next LP is out on the Atlantic 960mb but swinging a well-defined trough NE-wards across Britain, not linking across to Scandinavia. As this LP fills, it drifts across Britain 995mb Fri 20th, no ridge of HP at that time. Then instead of a Channel low, a large LP sets up off W Scotland 965mb Mon 23rd with SW-lies generally. ADDED after later download - it fills and by Wed 25th presents as a flabby LP over England, deepest in the SW; by Sat 28th there's a new trough to the west with SW-lies for all.
AIFS - London, maxima 8-10C to Tue 17th with rain on Sun 15th and Tue 17th; then after a dip to 5C climbing steadily to 15C by Thu 24th with small amounts of rain from time to time. Edinburgh, 6-8C now with rain on Sun 15th (but not 17th), then a more prolonged cold spell down to 3C around Thu 19th before recovering to 12C Wed 25th, dry until Tue 24th then rain , heavy at first but persisting.
GEFS - mean temp and ens up and down for a few days, then from Thu 19th close to or a little below norm. Rain for England starts Sun 15th, very heavy 17th, persisting but less intense through to Sun 29th; for Scotland also on 15th but then mostly dry to Sun 22nd when some rain in many ens members. Snow row figures briefly in high teens for Birmingham and northwards on Sun 15th, otherwise low single figures except for the Highlands.
Edited by user
13 November 2026 12:49:24
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Reason: Not specified
I can calculate the movements of stars, but not the madness of men - Isaac Newton
Chichester 12m asl