Sainsbo

You're probably right, the next update in a few minutes may tell Edit: Kew Gardens apparently now at 29.8C

29.3C at Heathrow at 2PM, 30C looking almost certain to be reached. Wonder if anywhere will get to 31 or 32C? 27.3C here

26.1C at the official station in Lyneham at 1PM. It will be interesting to see by how much the forecast temperature of 26C will be exceeded Edit: 29.1C at Heathrow now

23.7C here, feeling warmer than that in the sun

Already the warmest day of the year in Wales and it's not even midday. 24.8C in Rhyll at 11AM.

Just to add to the other tweet above @bbcweather Update: Chance of 35C tomorrow in the London area has now increased. Considered a 60% probability. John H

Indeed, I was quite surprised to see a 35C on the map. He also used the words 35C or so - Maybe a little hotter than that if there is little cloud cover? Maybe the July record isn't as safe as we thought!

I know CAPE and Lifting Index aren't the only factors, but seeing charts like this less than 48 hours away definitely makes me excited!

NMM 18z showing 34C for London on Wednesday!

With charts like these, I'm tempted to think somewhere in the top 50. There again, I'm not quite sure if the chart is 2m temperatures or surface temperatures. If they're 2m temperatures then I think it might suggest something a little more notable than some people think!

Here's a list from TORRO on the top 100 hottest days ever recorded in the UK. Unfortunately, it only shows the highest temp recorded in a day, and ignores the 2nd, 3rd, ect which may still be higher than others on the list. (Apologies, it's not very easy on the eye. I can't get the formatting right to get it in a table) It'll be interesting to see where Wednesday lands on this list 1st 38.5 10/08/2003 2nd 37.1 03/08/1990 3rd 36.7 09/08/1911 4th 36.6 02/08/1990 5th 36.5 19/08/2006 6th 36.4 05/08/2003 7th 36.1 06/08/2003 8th 36.1 19/08/1932 9th 36 22/08/1911 10th 35.9 03/07/1976 11th 35.7 02/07/1976 12th 35.6 28/06/1976 13th 35.6 29/06/1957 14th 35.6 13/07/1923 15th 35.6 13/08/1911 16th 35.6 02/09/1906 17th 35.5 27/06/1976 18th 35.4 26/06/1976 19th 35.2 01/08/1995 20th 35.2 02/08/1990 21st 35.2 04/08/1990 22nd 35.1 20/08/1900 23rd 35 29/06/1957 24th 35 12/07/1923 25th 35 15/07/1881 26th 35 28/08/1948 27th 35 14/08/1876 28th 35 18/08/1932 29th 35 01/09/1906 30th 34.9 31/08/1906 31st 34.8 01/07/1961 32nd 34.8 05/08/2003 33rd 34.8 02/09/1906 34th 34.7 11/08/2003 35th 34.7 18/08/1893 36th 34.6 08/09/1911 37th 34.4 03/06/1947 38th 34.4 05/07/1959 39th 34.4 11/07/1921 40th 34.4 16/08/1881 41st 34.4 27/08/1933 42nd 34.4 29/08/1948 43rd 34.4 29/08/1930 44th 34.3 22/06/1941 45th 34.3 06/07/1976 46th 34.3 22/08/1989 47th 34.2 08/08/1975 48th 34.2 03/09/1906 49th 34.1 04/07/1976 50th 34.1 08/07/1941 51st 34.1 16/08/1900 52nd 34.1 11/08/1884 53rd 34 21/08/1911 54th 34 07/08/1975 55th 33.9 17/06/1917 56th 33.9 22/06/1941 57th 33.9 01/07/1961 58th 33.9 10/07/1921 59th 33.9 08/01/1900 60th 33.9 31/08/1943 61st 33.9 12/08/1911 62nd 33.9 13/08/1911 63rd 33.9 16/08/1947 64th 33.9 17/08/1947 65th 33.9 22/08/1918 66th 33.9 27/08/1942 67th 33.9 28/08/1930 68th 33.8 30/06/1957 69th 33.7 12/08/1953 70th 33.6 15/08/1876 71st 33.6 22/08/1995 72nd 33.5 25/06/1976 73rd 33.4 23/08/1989 74th 33.4 07/09/1898 75th 33.3 02/06/1947 76th 33.3 06/06/1950 77th 33.3 07/07/1893 78th 33.3 07/07/2023 79th 33.3 18/08/2006 80th 33.3 19/08/1901 81st 33.3 26/08/1885 82nd 33.3 30/08/1948 83rd 33.3 29/08/1930 84th 33.3 07/09/1911 85th 33.1 07/06/1996 86th 33 21/08/1995 87th 32.8 09/06/1940 88th 32.8 19/06/2005 89th 32.8 07/07/1923 90th 32.8 26/08/1964 91st 32.8 05/09/1949 92nd 32.7 07/07/1976 93rd 32.7 17/08/2006 94th 32.6 24/01/1900 95th 32.5 25/08/1976 96th 32.4 24/06/1976 97th 32.3 14/07/1983 98th 32.3 20/08/1995 99th 32.3 04/09/1940 100th 32.2 08/06/1915

Ah, okay. Thanks! It looks like there is a fair amount of uncertainty on the max temperatures for Wednesday then. There again, if the GFS usually undercooks them, fingers crossed that we will see something more in line with what the ECM is showing!

Not sure what charts MetDesk use, but they posted this on their Twitter two hours ago. Quite a large area of purple (>32C)

I'm not quite sure Tuesday will be as hot as the BBC are anticipating - NMM and GFS showing max of 26/27C in London/SE and have been for a while, yet the BBC think 29/30C is possible. If they think it will be 2/3C hotter on Tuesday than the models suggest, I wonder what that means for Wednesday?

NMM 6z is pretty mouth watering for storm lovers Li of -11 and over 3000JKG^1 CAPE in places, let's hope that it doesn't get downgraded this time,

Ian F tweeted a few hours ago that Gloucestershire could see the highest temperatures for our region on Wednesday, around 30-32C. If it's that hot in out neck of the woods, maybe 34C+ isn't out of the question for some lucky areas in other parts of the UK 17C and cloudy here too, much more rain than was anticipated this morning.

GFS 12z definitely likes the idea of a reload! 06z 12z

Apologies mods if threads like this are prohibited, but I thought it would be a bit of fun if people predicted when/where they think that the maximum day/night temperature will occur next week in the UK, and just how hot that temperature will be. For maximum, I'm placing my bet on Kent, next Wednesday, 33.8C For minimum, I'm placing my bet on Norfolk, next Wednesday into Thursday, 23.2C

Something simple that you can do is keep curtains/blinds drawn and windows closed in the day, and then open the windows at night time. It seems instinctive to open all of the windows when it's boiling hot, but when the outside temperature is in the mid-high twenties or higher, all you are doing by opening the windows is letting warmer air in. It might not seem like it would make much difference, but turning off electrical appliances that aren't necessary will also help. TV's playing in the background, lights on in the evenings, and laptops on standby will all make the room feel hotter than it needs to!

BBC are now forecasting 33C in London and Heathrow on Wednesday, and like SS said it looks like the temperatures for Monday are also crawling up too, now forecasting 25C. I've always wondered what would constitute a Level 4 heat warning from the MetO. They state that Level 3 is when it is 90% certain that threshold values will be reached for 2 consecutive days/nights, but don't give any values for Level 4, they just say if it the heatwave is severe/prolonged enough. I'm not saying that 33-34C is enough to warrant it, but just saying "severe/prolonged" is a little subjective.

I don't think that the chart should be taken with the slightest bit of seriousness either, It's just that I've never seen any of the models being so agressive with their temperature forecasts, and thought it was worth a post. If it ends up being correct I will be very surprised lol

No messing around from the NAVGEM this morning. While it is one of the most extreme outputs, it would definitely see the record under threat. And that chart if for 8PM in the evening..

I think we need some more of them in Swindon Definitely looking darker to the SouthEast now, that cell looks like it's still growing too

It's quite easy to blame the BBC and MetO when you forget they have to rely on predictions from supercomputers in the first place. The atmosphere is a very chaotic environment, of course they aren't going to be right every time. It's the possibility that one day I might not be disappointed with the forecast and actually get a good storm that keeps me interested in the first place

Wunderground have Swindon down for 54mm of rain overnight. If I'm not mistaken, that would be the most that's fallen since the floods of July 19th 2007. I know it's silly to assume that the forecast is a given, especially considering how much it has been changing recently, but it looks like somewhere in our neck of the woods might need to buy a canoe