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Saint Snow
18 July 2023 10:05:28

Death Valley recorded an overnight LOW on Sunday night of 40.6C.

It was 49C at 1am.

Originally Posted by: Rob K 




Hundreds of idiots heading there to 'be part of the record' (how many will need medical help? how many emergency services people will they put at risk?)

🤦

Hopefully the sun & heat will shrivel their nuts so they can't spawn more cretins.

 

Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Quantum
18 July 2023 10:07:35

Hundreds of idiots heading there to 'be part of the record' (how many will need medical help? how many emergency services people will they put at risk?)

🤦

Hopefully the sun & heat will shrivel their nuts so they can't spawn more cretins.

 

Originally Posted by: Saint Snow 


I do get it. Last year I went out during the 40C, despite hating warm weather, just to experience what it felt like. I don't regret doing so though it was only 10 minutes (took 2 hours to cool down!)


 
2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
Tim A
18 July 2023 10:17:56
To be honest the only reason to go to Badwater/Furnace Creek is to experience extreme heat or say you have been below sea level, it's not that interesting a place particularly compared to the other national parks etc in the wider area.  Just hot and desolate.
Was 50c and 49c on the Furnace Creek thermometer on the two occasions I went, another few degrees would be interesting but not make much of a difference.  Main thing is what you do, i wouldn't go for a 10 mile hike in it.   
 
Tim
NW Leeds
187m asl

 My PWS 
Saint Snow
18 July 2023 11:12:42

I do get it. Last year I went out during the 40C, despite hating warm weather, just to experience what it felt like. I don't regret doing so though it was only 10 minutes (took 2 hours to cool down!)


 

Originally Posted by: Quantum 




And I've been out in 40c when on holiday. But both were in populated areas with nearby facilities (including air-conditioned shops/restaurants).

The issue with the Death Valley visitors is the remoteness of the place and lack of facilities.


PS - immersion in water always cools me down quickly. I don't know why it would take you 2 hours to cool down.

Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Quantum
18 July 2023 13:02:11

And I've been out in 40c when on holiday. But both were in populated areas with nearby facilities (including air-conditioned shops/restaurants).

The issue with the Death Valley visitors is the remoteness of the place and lack of facilities.


PS - immersion in water always cools me down quickly. I don't know why it would take you 2 hours to cool down.

Originally Posted by: Saint Snow 



Don't tolerate heat well at all, and skin doesn't tolerate water :S
 
2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
Jiries
18 July 2023 13:02:18
With the heat in the south and cold in the north it not normal in the past poor summers the Med wasn't baking hot but normal hot summer temperatures like 30-40c while here was 17-20C nowadays is 40-50 plus while here colder 14-18C days so that near 30C differences.  If the jet stream are active hitting the Uk why the LP are stuck here and not move to Europe that would cool them down.  The extreme heat should be feeding some warmth here to mid 20's not mid to high teen temps so it getting very boring now.
DEW
  • DEW
  • Advanced Member
18 July 2023 13:30:05
The current expert view -perhaps speculation would be a better word - seems to be that the jet is weaker because of a warmer Arctic, hence a lower temp gradient to drive the jet. A strong jet just blasts through and creates mobile weather but a weak one can be stuck in a blocking pattern with nothing to move it on, and hence a period of repetitive weather lasting a month or more, as experienced this year in the UK with rain in March, a warm June and a cool July.

Where that block gets set up can depend on various global factors. This year, recent unusual warmth in NW USA / W Canada seems to have set up a wave train, swinging north there, south over the Great Lakes, north over Greenland, south over Britain. There's a diagram in the link, but it's not dated so it could be just for illustrative purposes. However, a BBC weatherman a couple of weeks ago was showing something similar claiming it represented the current situation. https://www.bbc.co.uk/weather/features/66177220 

Last year the position of the loops was reversed, so we got the heat. Now we probably have to wait for the hurricane season to give the jetstream a jolt.
War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
Saint Snow
18 July 2023 13:35:04

The current expert view -perhaps speculation would be a better word - seems to be that the jet is weaker because of a warmer Arctic, hence a lower temp gradient to drive the jet. A strong jet just blasts through and creates mobile weather but a weak one can be stuck in a blocking pattern with nothing to move it on, and hence a period of repetitive weather lasting a month or more, as experienced this year in the UK with rain in March, a warm June and a cool July.

Where that block gets set up can depend on various global factors. This year, recent unusual warmth in NW USA / W Canada seems to have set up a wave train, swinging north there, south over the Great Lakes, north over Greenland, south over Britain. There's a diagram in the link, but it's not dated so it could be just for illustrative purposes. However, a BBC weatherman a couple of weeks ago was showing something similar claiming it represented the current situation. https://www.bbc.co.uk/weather/features/66177220 

Last year the position of the loops was reversed, so we got the heat

Originally Posted by: DEW 




The persistence of high pressure over the North Pole seems anomalous, too. Again tying into a warmer Arctic?

Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Ally Pally Snowman
18 July 2023 16:37:51
Maybe I'm being harsh but think the BBC are hyping the European heatwave somewhat.  Its significant but not unprecedented. Same with the US heatwave.  The Chinese heatwave is probably the most extreme. 
 
Bishop's Stortford 85m ASL.
Gandalf The White
18 July 2023 16:55:24

Maybe I'm being harsh but think the BBC are hyping the European heatwave somewhat.  Its significant but not unprecedented. Same with the US heatwave.  The Chinese heatwave is probably the most extreme. 
 

Originally Posted by: Ally Pally Snowman 



Really?  ‘Not unprecedented’?  Even when records are being broken; even when taken collectively they are definitely unprecedented: large swathes of the Northern Hemisphere under exceptional heat.  Not to mention other areas under significant rainfall events.
Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Gandalf The White
18 July 2023 16:57:27

The current expert view -perhaps speculation would be a better word - seems to be that the jet is weaker because of a warmer Arctic, hence a lower temp gradient to drive the jet. A strong jet just blasts through and creates mobile weather but a weak one can be stuck in a blocking pattern with nothing to move it on, and hence a period of repetitive weather lasting a month or more, as experienced this year in the UK with rain in March, a warm June and a cool July.

Where that block gets set up can depend on various global factors. This year, recent unusual warmth in NW USA / W Canada seems to have set up a wave train, swinging north there, south over the Great Lakes, north over Greenland, south over Britain. There's a diagram in the link, but it's not dated so it could be just for illustrative purposes. However, a BBC weatherman a couple of weeks ago was showing something similar claiming it represented the current situation. https://www.bbc.co.uk/weather/features/66177220 

Last year the position of the loops was reversed, so we got the heat. Now we probably have to wait for the hurricane season to give the jetstream a jolt.

Originally Posted by: DEW 



That prospect was being discussed perhaps 10-20 years ago, certainly for the Northern Hemisphere summer. I don’t think it’s clear what the effect is during the other seasons.
Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Chunky Pea
18 July 2023 17:19:53
If you look back on the ERA reanalysis maps for this period  mid period in July right back to 1901 and onwards, you'll see the current pattern we are under right now is actually very typical. Coolish SW to NW flows driven by lows to the near north. End of July, on average, tends to be more southerly and warmer, but not necessarily any drier. 
Current Conditions
https://t.ly/MEYqg 

"You don't have to know anything to have an opinion"
--Roger P, 12/Oct/2022
lanky
18 July 2023 18:52:39
There was someone from the WMO (John Nairn - Extreme Heat Advisor) on Radio 4 PM with Evan Davis this evening discussing the set up for these (almost) record-breaking temperatures across the N Hemisphere

He attributed the basis for this as the lack of sea ice / warming in the Northern Polar region leading to a very longitudonal jet stream around the globe in the north or as he put it "too many waves"

This leads to a very static pattern in which the peaks and troughs in the jet stream don't move all that much and consequently generate stuck weather patterns in any particular area. For us in the UK we are in a semi-static trough in the jet stream and on the northern side giving cool wet conditions but further east in Europe they are on the south under a ridge hence their long dry hot spell.

I think our long periods of alternating hot, cold, wet, dry months as the jet gets stuck in different set ups before moving to the next is evidence of at least a valid theory (but of course could be correlation not causation !)
Martin
Richmond, Surrey
+2
tallyho_83
19 July 2023 01:57:42
Night time min of 48.9c in Death Valley - California on 17th July 2023?!

https://www.newscientist.com/article/2382959-death-valley-may-have-just-had-the-hottest-recorded-midnight-ever/ 

Yet there was me complaining +18c is a really hot, muggy and uncomfortable night for sleeping!
Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
---------------------------------------
Sean Moon
Magical Moon
www.magical-moon.com


+1
Saint Snow
21 July 2023 10:18:39
Enormous hailstones in NE Italy

https://twitter.com/severeweatherEU/status/1681815415154941954 

https://metro.co.uk/2023/07/20/italy-hail-the-size-of-tennis-balls-injures-110-people-in-freak-storm-19161712/ 

https://weather.com/news/weather/video/italian-hailstorm-huge-stones-leave-100-plus-injured 

 

Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
+1
GezM
  • GezM
  • Advanced Member
21 July 2023 11:31:54

Night time min of 48.9c in Death Valley - California on 17th July 2023?!

https://www.newscientist.com/article/2382959-death-valley-may-have-just-had-the-hottest-recorded-midnight-ever/ 

Yet there was me complaining +18c is a really hot, muggy and uncomfortable night for sleeping!

Originally Posted by: tallyho_83 



Not a night time min. but very interesting nonetheless. I like heat but that's insane!
Living in St Albans, Herts (116m asl)
Working at Luton Airport, Beds (160m asl)
Ulric
21 July 2023 12:28:46
No rational argument will have a rational effect on a man who does not want to adopt a rational attitude. - Karl Popper
Windy Willow
21 July 2023 12:53:44
Wasn't sure where else to post this, but a waterspout is probably considered unusual here in the UK.
Spotted off the Dungeness coast here in Kent

https://www.youtube.com/watch?v=0R8mKSnoomo 



South Holland, Lincs 5m/16ft ASL

Don't feed the Trolls!! When starved of attention they return to their dark caves or the dark recesses of bridges and will turn back to stone, silent again!
DEW
  • DEW
  • Advanced Member
21 July 2023 14:06:09

Wasn't sure where else to post this, but a waterspout is probably considered unusual here in the UK.
Spotted off the Dungeness coast here in Kent

Originally Posted by: Windy Willow 


😲
War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
CreweCold
22 July 2023 02:26:41
Scientists seem to think we're travelling along the route of the worst case scenario (or close to it) in terms of climate change-

https://www.bbc.co.uk/news/science-environment-66229065 Â 

Given what we've seen over the past few years, I tend to agree. We seem to have fallen off a cliff edge and the acceleration of the trend is frightening. We can't be too shocked though because we were warned by some climate scientists that once we reached the tipping point things may unravel fast.

Where will we be in 20 years time? The mind boggles.

Crewe, Cheshire
55 metres above sea level
Jiries
22 July 2023 05:28:52

Scientists seem to think we're travelling along the route of the worst case scenario (or close to it) in terms of climate change-

https://www.bbc.co.uk/news/science-environment-66229065 Â 

Given what we've seen over the past few years, I tend to agree. We seem to have fallen off a cliff edge and the acceleration of the trend is frightening. We can't be too shocked though because we were warned by some climate scientists that once we reached the tipping point things may unravel fast.

Where will we be in 20 years time? The mind boggles.

Originally Posted by: CreweCold 



Dangerous heat domes becoming yearly feature for all except UK suffer more Autumn nearly all year round.  UK average will narrow much further between winter and summer from 6C to 22C in 1961-90 to 12C to 18C with more temperate and no variety at all in 20 years time, that the trends we seeing now with mild winters, cold spring and summer with few hours of warmth spike then mild Autumn.
Viking3
22 July 2023 05:59:32
A colleague lives in Palm Springs in California and this was the METAR report at 3pm local yesterday:

KPSP 212253Z 32018G24KT 10SM CLR 49/08 A2970 RMK AO2 SLP051 T04890078

49C with 18 knots gusting 24 knots must feel like an absolute furnace!
Keith
Aboyne, Aberdeenshire
135m asl
DEW
  • DEW
  • Advanced Member
23 July 2023 07:51:13
Nova Scotia - normally an equable maritime climate - has had 10" rain in 24 hours with fatalities and a potential dam burst
https://www.reuters.com/business/environment/atlantic-canada-province-says-dam-could-breach-tell-residents-get-out-2023-07-22/ 
 
War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
DEW
  • DEW
  • Advanced Member
23 July 2023 08:20:36
https://www.itv.com/news/2023-07-22/italy-hit-by-second-hailstorm-in-three-days-as-video-shows-flooded-street 
 
War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
picturesareme
27 July 2023 12:50:23
You'll probably need Instagram to view but check out this beast of a supercell in Italy

https://www.instagram.com/reel/CvI2mjdNDWu/?igshid=MzRlODBiNWFlZA== 
 
+2

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