Polar air quickly swept aside the heat of the continent in less than 24 hours. Whilst by no means cold, the 13c reduction in temperature in 24hrs combined with the first rain for 11 days in Reigate made it feel quite Autumnal. As models suggested the 5mm rain was less dramatic than originally thought… which is surprising considering the sharp change in air mass.
The cool whirlpool of polar air brought down by the jetstream from Iceland will be held in place by a meridional loop in the jetstream for several days. It’ll gradually warm through but this could spark off a few showers. So no true Autumnal stormy drama yet, just a gradual edging out of summer heat.