The Belgian one is called Kleine Brogel. 

Meanwhile in the UK there are still six stations at or above 28C at 10pm tonight. 

Re the 23.9C min in August 1990 - what were the synoptics that allowed it to happen? Yes, it was in the middle of a heatwave, but specifically?

Yes Manchester did used to have a weather centre, situated in Stockport town centre. Obviously long gone now. 

I have to be honest, for this part of the country, there seems to be a distinct lack of easy to reach, historical weather data. Woodford (situated in the borough of Stockport) is fairly representative of the city but a known frost hollow and is no longer in use. 

Rostherne is a brand new station so has no historical records and is too far out of the city to be representative. Manchester Airport is still in use, but is not an official Met Office station as far as I know? Data is available but isn’t especially easy to decipher. Manchester Uni isn’t accurate enough. 

Overall it has been a fascinating and exceptional day. The heat in the city has been absolutely incredible - there are a few unofficial stations within the UHI of Manchester which have recorded 34 or 35C today and I can well believe they are accurate. 

Incredible and not to be forgotten for a long time. 

Excellent. 

Right now the temp has dropped to 21C, but with a dewpoint of 20C it feels unbearably humid. 

Still 25.7C here and that's after a few spots of rain just then!

Donna Nook was not an error and is in fact absolutely fascinating...

https://twitter.com/metoffice/status/1154527667980402688?s=20

Yes was just reading that tweet. Apparently it's a phenomenon known as a "heat burst".

https://en.wikipedia.org/wiki/Heat_burst

The BBC have reported yesterday's highest temperature in Edinburgh (which is officially our highest ever recorded temperature for here in Edinburgh) to have been 31.6°C without identifying which actual station this was recorded at.

A local newspaper has quoted the same temperature for yesterday here in Edinburgh, and has pointed out Edinburgh Gogarbank as the station where that reading was recorded. This report even goes on to say that this was later confirmed by the Met Office.

Yet, the data from www.weathercast.co.uk shows yesterday's maximum temperature at Edinburgh Gogarbank to have been 30.9°C (which is what I have therefore, reported on the last CC thread on this forum as yesterday's maximum) and this is also backed up by the Met Office Observations website.

A tweet on the BBC Scotland Weather Twitter account even reported at 3pm (when that reading was recorded) that the highest recorded temperature in Edinburgh was 30.9°C as per that maximum value at Edinburgh Gogarbank which I reported on this forum.

That in turn, leads me to wonder where that other figure of 31.6°C came from which was later confirmed as the actual record. Now, data at both www.weathercast.co.uk and the Met Office Observations website is only ever reported on the hour, every hour and it is out of that data where that maximum value of 30.9°C comes from.

If the actual official record is 31.6°C though, this means that yesterday's maximum temperature at Edinburgh Gogarbank must have actually been 31.6°C, and not the value of 30.9°C which is highest hourly value for that station during yesterday.

There is a difference of 0.7°C between those two values, so that higher value which has been reported as the official record must have come about from some sort of upwards adjustment, or from other data which is produced from that station in between those hourly readings, but which is never actually publicly released.

Furthermore, this higher temperature must have occurred at some time after 3pm, as that lower value of 30.9°C would probably have been the actual highest temperature of the day so far at the time of that above mentioned tweet.

Should think the 24 hours CET record is well and truly up for grabs.

It's still 25C here.

Just edited my list of 35C+ maxima to include Wellesbourne 36.2C and Sheffield 35.6C, from Met Office data.

It's quite straightforward, 30.9C was the highest hourly reading but the actual max, which of course is unlikely to fall precisely on an hourly reading, was 31.6C. The Met Office "last 24 hours" obs page confirms that the 31.6C was Gogarbank. https://www.metoffice.gov.uk/public/weather/observation/map/gcvwr3zrw#?zoom=6&lat=54.69&lon=-4.00&map=WeatherCode&fcTime=1564052400

The daily max is usually only publicly released with the 6pm (UTC, ie 7pm in summer) SYNOP reading, which as well as the 6pm temperature also includes the daily maximum (and similarly the 6am SYNOP includes the overnight minimum). Hence why 30.9C would have been reported until the true max was known after 7pm.

And the heat burst gave the highest temp of the day by more than 6 degrees! The 6am-6pm max was 26.1C.

Thanks for that, as I wouldn't have thought about checking the last 24 hours page on the Met Office site after 7pm to find out what the true maximum temperature actually was before reporting that on the daily CC threads (which would therefore, be the more accurate way of doing that).

Nevertheless, that is something to remember for the future as this will also apply to whatever I report for the botanic gardens in Edinburgh as well.

Reached 37C (99F) here in rural W. Northants making it the hottest day here since 3rd August 1990  

Still 21C and not a breath of wind (hence why I'm still awake and posting on here at 1:30am haha) 

Since you do storm watch, snow watch and rain watch videos, I am wondering whether or not it might be a good idea to add heat watch videos that list in this sort of scenario.

In this case, it might even have been good if such a heat watch video had been produced along with your last storm watch video as one single video combining those two elements.

That is particularly true since this is an instance where the heat watch part of that came off really well (the fact that Edinburgh had its hottest day on record is itself, evidence of that) whereas the storm watch part of this has been a virtual non-event here (the latest radar map shows that there is not a single thunderstorm to be seen anywhere in Scotland as I write, with virtually the entire country being completely dry despite the fact that we are still under an official Met Office yellow warning for those thunderstorms).

Sheffield at 35.6c is possibly  the joint Yorkshire and Northern record, tied with Bawtry at 35.6c in September 1906.  

That Donna Nook reading is incredible, I saw it last night and assumed error.  People must have been confused, one minute it was 22c with a nice sea breeze then it rises to a tropical 32c. 

Would be nice to know which stations broke their all time records.  Round here Bingley,  Bradford and Sheffield too. Perhaps Linton on ooze and Ryhill also.