Max temp here 33.8°C, much hotter than yesterday (29.9°) and rather surprising. Some modest Cu around the middle of the day but now (1635Z) cloudless. The wind has picked up to a southerly force 3. Barometer falling nicely.

Tudor Hughes, Warlingham, NE Surrey, 557 ft, 170 m. TQ352595

On Thursday, 26 July 2018 17:41:57 UTC+1, Tudor Hughes wrote:
Max temp here 33.8°C, much hotter than yesterday (29.9°) and rather surprising.

That's warm advection for you :-)

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Freddie
Ystrad
Rhondda
148m AMSL
http://www.hosiene.co.uk/weather/
https://twitter.com/YstradRhonddaWx for hourly reports (no wind measurement currently)

On Thursday, 26 July 2018 17:58:00 UTC+1, Freddie wrote:
On Thursday, 26 July 2018 17:41:57 UTC+1, Tudor Hughes wrote:
Max temp here 33.8°C, much hotter than yesterday (29.9°) and rather surprising.

That's warm advection for you :-)

--
Freddie
Ystrad
Rhondda
148m AMSL
http://www.hosiene.co.uk/weather/
https://twitter.com/YstradRhonddaWx for hourly reports (no wind measurement currently)

Must be. The near continent (Amsterdam, Brussels, Paris) has been very warm and there has been a SE'ly breeze, now southerly. It is not humid, whatever they try to tell us. DP's have been 12-13 typically. I'm wondering what Friday will bring. I have a feeling it will be slightly less hot due to high or medium cloud.

Tudor Hughes, Warlingham, Surrey.

Yes, if you look at a sequence of 1000-850 hPa thickness charts you can see it in action, plus a bit of in situ warming too. We're missing out further west as the air here is cooler. There has been a bit of a diurnal cycle over the past couple of days, where there's warm advection in the morning, then a veering low-level flow in the afternoon owing to strong heating over England leading to low-level cold advection and comfortable nighttime temperatures. Looks like the large-scale dynamics will give us plenty of cold advection in the next couple of days, and some welcome rain too.

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Freddie
Ystrad Rhondda