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Jiries
12 August 2020 16:32:00

Hazy sun and now 32.4C after dropping from 33C max here to 27.6c in few minutes from few drop of rain earlier on.  


 

TimS
  • TimS
  • Advanced Member
12 August 2020 16:37:13

There's that fin de canicule feeling about this now, isn't there. The last, heroic bursts of heat before we return to normality. 3 days on the trot of 35C isn't bad.


Tomorrow is variously modelled as getting to 32C (GFS), 27C (ICON) and 29C (Arome). Interesting how high GFS is. It would be nice to have one final bonus day of 30C. We then seem set for a slow but inexorable - and damp - decline towards a late August rain and wind fest. Still time for that to change though. I quite fancied a couple of weeks of thundery weather in the mid to high 20s.


Brockley, South East London 30m asl
Phil G
12 August 2020 16:45:52
The animation button on xcweather, which is just the frames shown one after the other, shows the peak heats of today moving around hence quite a few locations have shared ‘top spot’ at one point or another.
briggsy6
12 August 2020 16:46:14

Tbh I would be perfectly happy not to see 30c until next summer. Fed up to the back teeth with all this heat & humidity now.


Location: Uxbridge
Phil G
12 August 2020 16:48:52


Tbh I would be perfectly happy not to see 30c until next summer. Fed up to the back teeth with all this heat & humidity now.


Originally Posted by: briggsy6 


Just hope we see a storm and don’t want to have to go through this for nothing. Short changed comes to mind, if nothing happens.


Not too biblical though eh!

Retron
12 August 2020 16:54:07


Tbh I would be perfectly happy not to see 30c until next summer. Fed up to the back teeth with all this heat & humidity now.


Originally Posted by: briggsy6 


Just need the first 10 words for me and that applies any time of year!


Amazing when you look at it.


In the 60s the coldest summer max was 27.8 (1962), 4 years failed to reach 30


In the 70s the coldest summer max was 28.0 (1974), 3 years failed to reach 30.


In the 80s the coldest summer max was 29.4 (1980), 2 years failed to reach 30.


In the 90s it was 29.7 (1993), just one year failed to reach 30.


In the 2000s, it was 30.1 (2007), every year thus reached 30.


In the 2010s, 31.7 (2010), every year thus reached 30 (and 31, only 1 year failed to reach 32).


Data from Trevor's great site here:


https://www.trevorharley.com/hottest-day-of-each-year-from-1900.html


 


Leysdown, north Kent
lanky
12 August 2020 17:00:15


 


Just need the first 10 words for me and that applies any time of year!


Amazing when you look at it.


In the 60s the coldest summer max was 27.8 (1962), 4 years failed to reach 30


In the 70s the coldest summer max was 28.0 (1974), 3 years failed to reach 30.


In the 80s the coldest summer max was 29.4 (1980), 2 years failed to reach 30.


In the 90s it was 29.7 (1993), just one year failed to reach 30.


In the 2000s, it was 30.1 (2007), every year thus reached 30.


In the 2010s, 31.7 (2010), every year thus reached 30 (and 31, only 1 year failed to reach 32).


Data from Trevor's great site here:


https://www.trevorharley.com/hottest-day-of-each-year-from-1900.html


 


Originally Posted by: Retron 


Yes I downloaded the 5km grid daily data of Maximum Temperature for my Location (Kew) the other day and then filtered for high summer Mid July to Mid August


Doing the "best fit" on this summer data showed a trend rise of over 3.2C between 1961  and 2018 (as revent as it goes for this data)


 


Martin
Richmond, Surrey
Bertwhistle
12 August 2020 17:01:45


 


Just need the first 10 words for me and that applies any time of year!


Amazing when you look at it.


In the 60s the coldest summer max was 27.8 (1962), 4 years failed to reach 30


In the 70s the coldest summer max was 28.0 (1974), 3 years failed to reach 30.


In the 80s the coldest summer max was 29.4 (1980), 2 years failed to reach 30.


In the 90s it was 29.7 (1993), just one year failed to reach 30.


In the 2000s, it was 30.1 (2007), every year thus reached 30.


In the 2010s, 31.7 (2010), every year thus reached 30 (and 31, only 1 year failed to reach 32).


Data from Trevor's great site here:


https://www.trevorharley.com/hottest-day-of-each-year-from-1900.html


 


Originally Posted by: Retron 


That is fascinating in that the trend is so constant. The 2010s bit is scary when you read to the end of the line.


 


Bertie, Itchen Valley.
Retire while you can still press the 'retire now' button.
Chidog
12 August 2020 17:07:07


 


That is fascinating in that the trend is so constant. The 2010s bit is scary when you read to the end of the line.


 


Originally Posted by: Bertwhistle 


Even more frightening when all of the last six years have recorded 34 and four of them 35!

redmoons
12 August 2020 17:26:38
After the heat and the thunderstorms the temperature dropped to 20.9c and now slowly coming back up to 22.6c @6pm

Highest temp was 36.3c @3.28pm it was unusual that it was climbing without any sunshine from 35.6c to 36.3 in 20min whilst thunder and lightening was occurring. The wind was gusting and then the rain came and cooled everything down. Dropping 5c every 10 minutes.

Currently : 22.6c with DP 20.9c (highest in this heatwave)
Humidity : 90%
Rain : 9.3mm (first of the month)

6 days in a row over 30c
3 days in a row over 35c

3 tropical nights (above 20c)
Andrew,
Watford
ASL 35m
http://weather.andrewlalchan.co.uk 





severnside
12 August 2020 17:52:10

Hit 35c today, this the highest temperature here since 2006 , I recorded 36c on the 19th July 2006


 


Since Friday 7th - 28c , Saturday 31c , Sunday 26c, Monday 30c, Tuesday 32.5c


 


Big storm brewing to East, towering clouds, on the radar Oxford and Swindon seem to be getting it, although now the wind has really picked up strongly, temp dropped from 32.5c to 28c


Do RAF planes follow storms? a big galaxy aircraft did a few loops overhead

Rob K
12 August 2020 18:01:37

Brize Norton dropped from 34.2 to 22.9 between 5pm and 6pm. Quite an impressive plunge!


35.4 the max at Heathrow seems to be the highest of those I can see. 


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
Rob K
12 August 2020 18:22:46
That’s quite an impressive run of maxima at Heathrow. Unusual that the first day of the heatwave proper was the hottest (and the little aperitif still the end of July was hotter still)

https://www.ogimet.com/cgi-bin/gsynres?lang=en&ind=03772&ndays=14&ano=2020&mes=08&day=12&hora=18 

Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
Snow Hoper
12 August 2020 18:37:55


Tbh I would be perfectly happy not to see 30c until next summer. Fed up to the back teeth with all this heat & humidity now.


Originally Posted by: briggsy6 


On the contrary, I'd be perfectly happy for it to continue until the end of September👍


Maxed at 33.4C here. 


Going to war over religion is like killing each other to see who has the better imaginary friend.


Home : Thorndon, Suffolk.
RobN
  • RobN
  • Advanced Member
12 August 2020 18:40:39


Brize Norton dropped from 34.2 to 22.9 between 5pm and 6pm. Quite an impressive plunge!


Originally Posted by: Rob K 


Just up the road from me and yes it was remarkable. There were very strong cool gusty outflow winds ahead of the storms.


Rob
In the flatlands of South Cambridgeshire 15m ASL.
AJ*
  • AJ*
  • Advanced Member
12 August 2020 18:52:22

Max temp here was 34.7*C around lunchtime, and it's still 27.9*C, so it still feels like a heatwave.  All the thundery showers kicked off to the north and west of here, though there is a big area of rain shown on the radar just leaving the French coast and heading NWwards, which we might catch the eastern end of here.


Angus; one of the Kent crew on TWO.
Tonbridge, 40m (131ft) asl
TimS
  • TimS
  • Advanced Member
12 August 2020 19:01:55

That’s quite an impressive run of maxima at Heathrow. Unusual that the first day of the heatwave proper was the hottest (and the little aperitif still the end of July was hotter still)

https://www.ogimet.com/cgi-bin/gsynres?lang=en&ind=03772&ndays=14&ano=2020&mes=08&day=12&hora=18

Originally Posted by: Rob K 


Yes it’s a bit of an unusual order of things. I think because the start of this event was a big surge of Southerly hot air followed by a stagnation, rather than the canonical British heatwave which is:



  • Cold frontal clearance

  • High pressure ridge moves in over UK: warm days but coolish nights

  • High pressure becomes cut off and retreats Eastward

  • pressure drops but hot air starts to be sucked up from Continent

  • hottest day under SSE flow but thundery breakdown pm

  • Cold front moves in, Mildenhall records final hot temp of the event


Brockley, South East London 30m asl
bledur
12 August 2020 19:16:10

That was one of the hottest heatwaves we have had here since 76. It felt worse to me , but that is probably due to age. Can,t say i was really bothered by hot days and nights at 16 years old.

RobN
  • RobN
  • Advanced Member
12 August 2020 19:29:23


That was one of the hottest heatwaves we have had here since 76. It felt worse to me , but that is probably due to age. Can,t say i was really bothered by hot days and nights at 16 years old.


Originally Posted by: bledur 


Indeed.


Age takes its toll on one's appreciation of certain types of weather event.


I do not recall feeling quite so poleaxed during the summer of '76.


But it was a long time ago.


Rob
In the flatlands of South Cambridgeshire 15m ASL.
Tom Rance
12 August 2020 19:57:22

That’s quite an impressive run of maxima at Heathrow. Unusual that the first day of the heatwave proper was the hottest (and the little aperitif still the end of July was hotter still)

https://www.ogimet.com/cgi-bin/gsynres?lang=en&ind=03772&ndays=14&ano=2020&mes=08&day=12&hora=18

Originally Posted by: Rob K 


 


Average max of 31.1c for that period. Amazing.


Tom
Cambridgeshire, Ouse Valley, 40ft AMSL.
TimS
  • TimS
  • Advanced Member
12 August 2020 21:14:37


 


+ max of 35.7 today takes Heatwave degree days up to 26.1 as of today.


 


Originally Posted by: TimS 


+ max 35.4 today so we are at HDDs of 31.5. Is that it, or might tomorrow give us an extra one of two? Then that really will be it.


Brockley, South East London 30m asl
sunny coast
12 August 2020 21:38:02
So the news is saying 6 days in a row of 34 plus inparts of the SE. First time for 60 odd years. So what Summer was that exceeded in then as early 60 s summers were either cool or wet. 1959 maybe which was a long hot summer. In 76 it got to 32 somewhere for some 2 weeks during the peak late June early July.
TimS
  • TimS
  • Advanced Member
12 August 2020 21:41:18

So the news is saying 6 days in a row of 34 plus inparts of the SE. First time for 60 odd years. So what Summer was that exceeded in then as early 60 s summers were either cool or wet. 1959 maybe which was a long hot summer. In 76 it got to 32 somewhere for some 2 weeks during the peak late June early July.

Originally Posted by: sunny coast 


I think they’re saying that just because there aren’t good enough day by day records further back to be sure. There’s nothing in the 20th century in any of the weather records that gets close to 6 days of 34+.


Brockley, South East London 30m asl
Brian Gaze
12 August 2020 21:41:34

The best comparison I can make with this spell is  January 1987.


Brian Gaze
Berkhamsted
TWO Buzz - get the latest news and views 
"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Rob K
12 August 2020 21:57:02

So the news is saying 6 days in a row of 34 plus inparts of the SE. First time for 60 odd years. So what Summer was that exceeded in then as early 60 s summers were either cool or wet. 1959 maybe which was a long hot summer. In 76 it got to 32 somewhere for some 2 weeks during the peak late June early July.

Originally Posted by: sunny coast 


It’s just bad reporting by the Met Office. They say “first time since 1961” but what they actually mean is first time on record, and the digital records go back to 1961. 


I work in communications, and I reckon the accuracy and clarity of the Met’s comms leave a lot to be desired at times!


 


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome

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