FAX - current HP moving to Denmark 1020mb by Fri 26th bringing in (even warmer?) SE-lies but making way for LP moving north from Spain 1008mb off Brittany at that time (the chart shows a front and a trough for S England; I'm surprised there's no mention of storms in the MetO forecast with this set-up). This LP trundles on northwards and combines with Atlantic LP 988mb south of Iceland with fresher westerlies Sun 28th, strong in the north, weaker and still close to HP in the south.
GFS Op 0z - follows on from FAX and initiates a period from Sun 28th through to Thu 9th with HP lurking to the SW, sometimes closer with ridge to Britain (Tue 30th, Mon 6th), sometimes withdrawing and allowing cooler NW-lies to predominate (Fri 3rd, Wed 8th). On Fri 10th the Atlantic asserts itself and projects LP to the Western Isles 995mb, cool with LP for all.
ECM (to T+240) - similar to GFS but with the centre of HP further west after 28th with a steadier westerly as a result.
AIFS - London, staying at 33-35C to Fri 26th, then sliding downwards quickly, eventually to 20C on Tue 30th, followed by a slow rise to 25C Wed 8th. Rain at intervals from Sun 28th - Thu 2nd. Edinburgh, peak 23C Thu 25th, dipping on Fri with rain, then a brief recovery before decreasing to 17C Tue 30th with more rain, followed by a rise to 20C Tue 7th but small amounts of rain from time to time.Â
GEFS - In the S, temps (both mean and ens agreement) from 13C above norm Fri 26th to norm Mon 29th and staying there. A few sharp peaks of (showery?) rain to 29th then dry in nearly all runs in the far S, some chances of rain further north in England. In Scotland, similar dramatic drop in temp (though the peak heat is only for one day, the 26th) , and although mean stays near norm, even a bit below, after the weekend there is less ens agreement; more definite rain on 26th and higher chances of rain later esp in west.
It's not the voting that's democracy, it's the counting - Tom Stoppard
Chichester 12m asl