The fine spell of late summer weather which has seen temperatures today rise to a new September record of 29.4C at Wattisham in Suffolk (beating their previous record set in 1973) will come to an abrupt end in the next 24 hours, and could lead to localised flooding in places.
It’s a text book break down of the weather, as cool air from the north meets very warm air from the near continent, resulting in a rapid destabilisation of the atmosphere.
The contrast in temperatures across the UK is dramatic, with just 12C (54F) recorded at Aboyne in Aberdeenshire this afternoon, compared with 30C (86F) in Kent.
And under the right atmospheric conditions a temperature contrast like this can lead to copious amounts of rain, with parts of Northern England in the highest risk area, together with North Wales.
With much of the ground still firm following the dry summer, rapid run-off could lead to localised flooding.
Current estimates suggest that 25mm (1 inch) of rain is likely across a wide area, but some spots may see 50mm (2 inches) – or more – during Friday and into Saturday morning.
With temperatures in our region struggling to get above 15C (59F) on Friday with a brisk northerly wind, it really will feel like autumn has arrived.
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