Back to today - the temperature reports for 11:50/12:00 (depending on the station) are remarkably uniform across the southern half of England; the vast majority reported either 23 or 24*C. Winds are also very light away from the immediate coast and this is leading to an already stifling feel.
Despite far more sunshine, the temps are similar to where yesterday was at this time - testament to the little bit more cooling that the clearer skies allowed to take place last night.
This morning has been all about solar input - but as the day continues, we'll have the Spanish Plume slowly but steadily advancing from the south, helping temperatures to keep on rising until perhaps as late as 6 pm quite widely.
By arriving so slowly and during the daytime, this particular plume will be able to establish itself firmly at the surface, as opposed to riding up and over cooler surface air such as could occur if the plume was arriving more quickly and/or in the cooler part of the day. I believe this is what paves the way for some unusually high overnight minimums, and perhaps even a UK Max somewhere in the top 1% of recorded values (i.e. 35*C).
Originally Posted by: Stormchaser