I don't really see the logic in closing schools.

I've also noticed that the amber warning has been extended all the way up into the Scottish Borders where I will be at the time, so even I'm likely to be on the very edge of that then which wouldn't have been the case if I was still in Edinburgh then.

That though, is just like the thing.

Because schools are ridiculously hot places, usually with windows that can’t open due to thick paint etc 

I suppose it just adds to the traffic and more people out and about. Kids potentially passing out in school. Also, I know that my 6 year old boy and others can't be trusted to drink enough water when they're with their friends. Haven't heard anything from school as of yet but expecting some communication soon.

They have also triggered the National 4 Level Warning so I suspect that will be the catch all criteria

I actually think it is. Certainly at least a level four. I’ve followed all the main heatwave so here and don’t remember an extreme heat warning. Happy to be corrected though

Met office have issued press release to say it’s the first. 

According to the Met Office it is. There are three different warning systems for heat though, and I can't keep track of them.

https://www.metoffice.gov.uk/about-us/press-office/news/weather-and-climate/2022/red-extreme-heat-warning

They also say 50% chance of 40C and 80% chance of new record.

First ever to hit London! 

But yes you posted the link the other day , was the SW. 

Here's an example of a mitigation measure prompted by a Met Office heat warning: Hammersmith Bridge wrapped in foil during heatwave

Cool down only take's many of us back to the mid 20's again midweek before the heat re-builds.

https://www.meteociel.fr/modeles/gfs/royaume-uni/temperatures-2m-hd/150h.htm

They're specifically saying red warning. There was one issues in July last year 

Shows how this has ramped up in the last 48 hours. They were stating 10% two days ago 

I think it was "less than 10%" for 40C and 20% for the record? Either way they now say 50% for 40C and 80% for the record.

Kew Gardens now showing 41c for Tuesday. Crazy, yet somehow already seems almost normal 

What's interesting about these amber and red warnings which are going to be in place for extreme heat is that the fact that there is no corresponding yellow warning for that anywhere.

These warnings are after all, being issued under the very same warning system (in addition to the heatwave warning system which currently only covers England and Wales) as those warnings which are commonly issued for other weather types such as snow, rain or wind.

Under that system, you don't usually get any amber or red warnings being issued without any yellow warnings for that same weather type being issued somewhere (usually over a larger area once those amber or red warnings are in place) and so, this is the first time that I can remember this actually happening.

Given that the amber warning area has now been extended up to the Scottish Borders though, I would therefore have expected Edinburgh to be within any yellow warning for that if there was one.

With all the focus on the North and E Anglia on Tuesday don't forget Kent is also one of the last places to lose the high 850s, and the North Kent coast gets the benefit of being downwind from the downs which trap the channel air to the South.

Meteologix, whose maps are the most detailed on the internet for the main weather models (but which I don't seem to be able to post a picture of), consistently show a peak just South of Canterbury of 41C vs 39C elsewhere in Kent and up into Essex. That's in the Brogdale area, which is just outside Faversham off the M2 and North of the Downs. It's also where my newly planted vineyard is, so I'm more than a tad worried about the impact this heatwave (and the drought this month) is going to have on the vines as there is no irrigation.

It was actually 41C on both days earlier! So you were right the first time.