Already up to 32.2C at the vineyard. Never seen anything like it. Before 9am, and it's a hotter temperature than the station had ever recorded (admittedly it's only been up a year) before yesterday.

Same time yesterday it was 27C.

Also 32.2C at Heathrow at 9am. That's 90F on the dot at 9am. 

For comparison, in 2019 Heathrow was 28.8C at 9am. So 3.4C higher at the moment.

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I was trying to find out what the Cambridge Botanic Garden reading was yesterday and.... no readings since Saturday! Why would they stop recording in the previous record holding location just when a new record was looking likely? Utter madness!

https://wow.metoffice.gov.uk/observations/details/?site_id=27484233

 

They tweeted about taking a reading on Sunday so I'm sure they haven't stopped. Must be a problem in updating that page.

 

Also 32.2C at Heathrow at 9am. That's 90F on the dot at 9am. 

29.3C here. It's very unusual to see Heathrow so far ahead given that my VP2 over reports.

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They tweeted about taking a reading on Sunday so I'm sure they haven't stopped. Must be a problem in updating that page.

On further reading (see above) it is a manual process so presumably takes a few days to update. But in principle they won't take the reading for yesterday for another hour, so there is still an outside chance of a record.

 

PS lightning map looking very lively out west

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 29.3C here. It's very unusual to see Heathrow so far ahead given that my VP2 over reports.

It's the katabatic effect from the mighty Downs.

 

So, looking at this article: https://www.botanic.cam.ac.uk/how-the-weather-is-recorded-at-cubg/

The daily max is actually recorded at 9am (10am BST) each day and then forwarded to the Met Office. So if a new record was set, it wouldn't be officially known until after 10am today. Although you would think someone would have gone and had a little look yesterday 

I think there is a good argument to be made for more funding in the UK. Quite frankly there are too many gaps in the reporting network and it would be helpful if reporting processes were standardised.    

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Think there are going to be some quick rises and high temps by lunchtime today but still have a feeling that 40C is not going to be reached today.
Unfortunately there is then going to be a whole load of twaddle about how everyone has overeacted and the twitterati will be in meltdown.

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It's the katabatic effect from the mighty Downs.

 

What is this? like foehn effect?

 

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I think there is a good argument to be made for more funding in the UK. Quite frankly there are too many gaps in the reporting network and it would be helpful if reporting processes were standardised.    

I quite agree. Leicester for example doesnt even have a reporting station. So many gaps.

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30.1c at 9am here in Watford

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I quite agree. Leicester for example doesnt even have a reporting station. So many gaps.

You'd think that at a minimum every city in the UK should have a weather station, and every town above a certain size (perhaps with a proviso that it's not needed if there is another station within X miles).

However if they started adding lots of urban weather stations, the records would be massively skewed by UHI effects, and you'd never hear the end of it.

 

(And talking of UHI, Kew Gardens has just updated with a 32.4 at 9am!)

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I remember in my childhood being told that Tonbridge held the record for the highest temperature recorded in England, but (IIRC) since then this record has been discounted as invalid because it was taken at an amateur weather station in a garden in the north part of the town, with a non-standard local situation which most likely caused the temperature to read too high.  I don't know when this decision was taken, or what record at which location was deemed to be the official maximum instead.

Always the garden is higher because is sheltered but really should be counted because some areas of UK had reached 40C before for sure but Met prefer stations in conservative temperate areas.  Lot of new stations opening in Cyprus from their gardens and how showing very interesting temperatures and not always Nicosia the hottest but outskirt of Nicosia get hotter than the town itself. They are not fussy and is for fun and interests.

Yesterday drive from Nuneaton to Birmingham NEC Resort world to pick up my wife had reached 38C in the car to 36C so that show some areas are hotter and some cooler, 38C outside Nuneaton, 36C in Meriden and then 37C when arrived at NEC.

30C here as the tree shadow now 1\3 in my garden by so 10am it will be fun then the rise will go very fast like yesterday from 10am to 2pm before clouds came.

We decided to sleep in the garden 

Were you disturbed by doggers?

 

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I remember in my childhood being told that Tonbridge held the record for the highest temperature recorded in England, but (IIRC) since then this record has been discounted as invalid because it was taken at an amateur weather station in a garden in the north part of the town, with a non-standard local situation which most likely caused the temperature to read too high.  I don't know when this decision was taken, or what record at which location was deemed to be the official maximum instead.

Bob Ogley Weather book of Kent

22nd July 1868

Dr George Hunsley in Mill Lane Tonbridge measured a temperature of 38.1c (100.5f).

Was later discount as read in a stand with a open front.

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32.5c @ 0914. 

Never seen anything like this in the UK.

Feels very much like southern/central France when its really hot there.

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30.2C here in my garden.

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27C at just after 9am here. 23C the lowest overnight.

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Blackbushe airport just ticked over to 30.0C at 9.15am. About 2 hours earlier than yesterday.

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You'd think that at a minimum every city in the UK should have a weather station, and every town above a certain size (perhaps with a proviso that it's not needed if there is another station within X miles).

However if they started adding lots of urban weather stations, the records would be massively skewed by UHI effects, and you'd never hear the end of it.

 

(And talking of UHI, Kew Gardens has just updated with a 32.4 at 9am!)

Yes, a sensible approach that, I mean in London we have two reporting stations in the whole of east London. I’m shocked that the MetOffice don’t have a longer term plan to improve the network.

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What is this? like foehn effect?

 

Kind of dry equivalent of foehn. With foehn you have saturated air upslope, rain/condensation, then dry adiabatic warming downslope. With the downs on days like this it's more that the dry higher air gets mixed down to ground level, warming up at DALR as it descends. (Xioni please correct me if I got the description wrong).

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