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Hungry Tiger
28 June 2021 13:36:10

This is quite amazing - Not been given much coverage yet - Some incredible temperatures set in the Pacific North West and Canada.


 


A new record has been set for Canada with Lytton in British Columbia yesterday recorded 46.6C 117F. Other records include Portland, Oregon with 45C 114F. McMinnville, Oregon hit 43.5C 111F, The Dalles, Oregon with 45.5C 115F. Some of these records and others set yesterday may fall again later today or tomorrow. I'm keeping tabs on this - well interesting. 😮 🙂


 


Big news that Canada has a new all time record high temperature - Lytton's official high temperature today on June 27, 2021 is 46.6 C. Lytton British Columbia now holds the record for Canada's all time maximum high. The previous record was 45.0 C set on July 5, 1937 at Yellow Grass, and Midale, Saskatchewan. 🙂


Gavin S. FRmetS.
TWO Moderator.
Contact the TWO team - [email protected]
South Cambridgeshire. 93 metres or 302.25 feet ASL.


Bolty
28 June 2021 13:47:04
Yes, truly incredible temperatures! I can't even imagine what 46°C+ must feel like!

What's even more incredible is much of the Pacific Northwest of the US and southern British Columbia have very similar climates to much of the UK. It is only a matter a time before we see a 40°C heat wave here.
Scott
Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.
My weather station 
moomin75
28 June 2021 13:54:31

Yes, truly incredible temperatures! I can't even imagine what 46°C+ must feel like!

What's even more incredible is much of the Pacific Northwest of the US and southern British Columbia have very similar climates to much of the UK. It is only a matter a time before we see a 40°C heat wave here.

Originally Posted by: Bolty 


Not sure its a matter of time here. We are a tiny island surrounded on all sides by water.


If the wind is in the right direction in North America, it is directly continental with no temperance from any body of water.


I know they have the Pacific to the west, but north, east and south is land, and lends itself to much easier passage to extreme heat.


I do think 40c is a remote possibility in the UK, but certainly wouldn't say it's just a matter of time.


I think it would need several days or even weeks of direct southerlies to get us to that threshold. Even a short track across a relatively cool English Channel would temper things slightly.


That said, we have got close in recent years, within a degree and a bit, but its very unlikely in my view, although certainly not impossible.


Witney, Oxfordshire
100m ASL
Quantum
28 June 2021 14:09:53

Around kennewick looks more extreme than Portland:


https://www.bbc.co.uk/weather/5799610/today


Could be 47C today, even higher potentially tommorow (though cooler in portland).


 


2024/2025 Snow days (approx 850hpa temp): Total: 3 days with snow/sleet falling
18/11 (-6), 19/11 (-6), 23/11 (-2)
2023/2024 Snow days (approx 850hpa temp): Total: 8 days with snow/sleet falling
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)
2022/2023 Snow days (approx 850hpa temp): Total: 7 days with snow/sleet falling.
18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)
2021/2022 Snow days (approx 850hpa temp): Total: 12 days with snow/sleet falling.
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)
Bolty
28 June 2021 14:11:51
I'd imagine there will be some right beasts of thunderstorms to come when the cooler and more humid Pacific air begins to return to those areas.
Scott
Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.
My weather station 
Quantum
28 June 2021 14:14:36

I'd imagine there will be some right beasts of thunderstorms to come when the cooler and more humid Pacific air begins to return to those areas.

Originally Posted by: Bolty 


Maybe, but the air is extremely dry so maybe not.


Sometimes in the US you can get cold fronts that drop the temp by 10C+ without a cloud in the sky.


 


2024/2025 Snow days (approx 850hpa temp): Total: 3 days with snow/sleet falling
18/11 (-6), 19/11 (-6), 23/11 (-2)
2023/2024 Snow days (approx 850hpa temp): Total: 8 days with snow/sleet falling
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)
2022/2023 Snow days (approx 850hpa temp): Total: 7 days with snow/sleet falling.
18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)
2021/2022 Snow days (approx 850hpa temp): Total: 12 days with snow/sleet falling.
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)
GezM
  • GezM
  • Advanced Member
28 June 2021 15:46:03


This is quite amazing - Not been given much coverage yet - Some incredible temperatures set in the Pacific North West and Canada.


Originally Posted by: Hungry Tiger 


It's been discussed in the North American reports thread for a few days. Probably worthy of its own thread though smile


Living in St Albans, Herts (116m asl)
Working at Luton Airport, Beds (160m asl)
TimS
  • TimS
  • Advanced Member
28 June 2021 17:08:02


 


Maybe, but the air is extremely dry so maybe not.


Sometimes in the US you can get cold fronts that drop the temp by 10C+ without a cloud in the sky.


 


Originally Posted by: Quantum 


True, in fact it’s one of the big differences between the Mediterranean and temperate climates of the US West coast and Western Europe that thunderstorms are a major feature of the latter but very rare in the former until you get far inland. The cold sea I think is the culprit. So almost certainly no thundery breakdown.


Brockley, South East London 30m asl
TimS
  • TimS
  • Advanced Member
28 June 2021 17:18:43

The US version of XCweather a good place to monitor this as it happens today

https://windmapper.com/NW/observations


15C on the Oregon coast. A true Shetland of the US West. 


Brockley, South East London 30m asl
Quantum
28 June 2021 17:23:07

I'm currently watching this:


https://www.wunderground.com/dashboard/pws/KWAKENNE38/table/2021-06-28/2021-06-28/daily


Kennewick has to be close to where the hottest temps will be.


36C already.


 


2024/2025 Snow days (approx 850hpa temp): Total: 3 days with snow/sleet falling
18/11 (-6), 19/11 (-6), 23/11 (-2)
2023/2024 Snow days (approx 850hpa temp): Total: 8 days with snow/sleet falling
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)
2022/2023 Snow days (approx 850hpa temp): Total: 7 days with snow/sleet falling.
18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)
2021/2022 Snow days (approx 850hpa temp): Total: 12 days with snow/sleet falling.
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)
Hungry Tiger
29 June 2021 13:17:14






More amazing factoids from the Pacific North West. Further new all time temperature records have been set in the Pacific North West. The temperature in Lytton in British Columbia, Canada reached 48.C 118.2F just one day after it had surged to a record of 116 degrees. This sets yet a new all time record high for Canada. For perspective, this temperature is more extreme than the all-time high in Las Vegas, Nevada which is 47.5C 117F.
 


Some places on Monday shattered all-time records, which are exceptionally rare and difficult to break, by 2C or even 4C plus degrees. For example, Quillayute, Washington., which hit 43C 110F obliterated its previous all-time high by nearly 4C.






Gavin S. FRmetS.
TWO Moderator.
Contact the TWO team - [email protected]
South Cambridgeshire. 93 metres or 302.25 feet ASL.


Viking3
29 June 2021 13:57:33

Some detail on the various records broken can be found in this link:


https://weather.gc.ca/warnings/weathersummaries_e.html#BC


A highlight from this document is:


Gibsons Area (Sechelt Aut)*


New record of 40.8
Old record of 29.6 set in 2008
Records in this area have been kept since 1949


That's just ridiculous! 


Keith
Aboyne, Aberdeenshire
135m asl
Jiries
29 June 2021 19:13:40

They are very lucky to experience strong heatwave as what summer is all about, warmth, heat, sunshine and dryness.  They got the jackpot because the heatwave occur on the longest day that allow more heating on the surface.  For here we losing a lot of valuable summer days with this northern blocking pattern that been running since mid June just before the longest day occur.

fairweather
29 June 2021 19:20:02

I think few people on this planet would agree with you. 48C is not only physically intolerable but is also life threatening for many people.


S.Essex, 42m ASL
KevBrads1
30 June 2021 03:58:18

Canada weather: Dozens dead as heatwave shatters records


https://www.bbc.co.uk/news/world-us-canada-57654133


 


MANCHESTER SUMMER INDEX for 2021: 238
Timelapses, old weather forecasts and natural phenomena videos can be seen on this site
http://www.youtube.com/channel/UCgrSD1BwFz2feWDTydhpEhQ/playlists
Retron
30 June 2021 04:27:10


Canada weather: Dozens dead as heatwave shatters records


https://www.bbc.co.uk/news/world-us-canada-57654133


Originally Posted by: KevBrads1 


"On Tuesday, Canada recorded its highest ever temperature for a third straight day - 49.5C (121F) in Lytton, British Columbia. "


...


"Before this week, temperatures in the country had never passed 45C"


Absolutely astonishing.


Leysdown, north Kent
Jiries
30 June 2021 06:05:06
















































































































































































































































































































































































0134.114.224.20.06.2  0.0 1935
0233.414.824.10.06.1  0.0 1754
0329.718.424.10.06.1  0.0 2055
0423.215.919.60.01.6  0.0 1876
0519.211.415.32.70.0  0.0 1767
0618.29.814.04.00.0  0.0 1958
0720.69.214.93.10.0  0.0 1942
0821.95.313.64.40.0  0.0 1952
0921.111.516.31.70.0  0.0 1759
1019.39.014.23.80.0  0.0 1968
1121.39.315.32.70.0  0.0 1952
1224.511.618.10.00.1  0.0 2055
1324.214.219.20.01.2  0.0 1958
1426.415.220.80.02.8  0.0 1858
1523.414.118.80.00.8  0.0 1763
1624.813.219.00.01.0  0.0 1950
1728.011.719.90.01.9  0.0 1950
1829.616.423.00.05.0  0.0 1852
1924.414.319.40.01.4  0.5 2058
2032.510.721.60.03.6  0.0 LegendMMLegendMM
2135.513.924.70.06.7  0.0 2041
2233.919.726.80.08.8  0.0 1758
2331.618.825.20.07.2  0.0 1958
2431.919.325.60.07.6  0.0 1939
2539.215.327.30.09.3  0.0 145
2643.819.631.70.013.7  LegendMM LegendMMLegendMM
2745.220.332.80.014.8  LegendMM LegendMMLegendMM
2846.320.633.50.015.5  LegendMM LegendMMLegendMM
29

Here the data for that location and not yet updated for 49.5 so that 50C for Canada.


Meanwhile from the Death Valley data and note it reached 40C at night.  




















































































































































































































































JuneMinMaxMaxRain
Min CFCFMM
2882461150.0
3187481100.0
3595491200.0
3697501210.0
3594491190.0
3392451130.0
3187401030.0
2678401040.0
2883391020.0
217036970.0
2373411050.0
2678441120.0
2883471160.0
3188481180.0
3188511240.0
3391521250.0
3594531280.0
38101511240.0
3697521250.0
3798511240.0
3696501220.0
3594471170.0
3594421080.0
3086451130.0
3289451140.0
3086501220.0
3798501220.0
40104501210.0
3595521260.0
  
  
     
32.189.647.0116.20.0

I am wondering what the height from the seal levels for Lytton? because if they can managed to reach just close to 50C while Death Valley which sit well below sea levels only reached 52C and 53C the highest for this month.  We cannot even get a 25C in the UK nowadays here and lost chance of 42C at least when France hit 46C due to clouds interruptions that give out only 38.7C.  I remember posters got stress with clouds coming and spoil it.  Also in July 1st 2015 when it reached 33C at 9am only to hit by clouds for few hours during the prime rising temps time.


 

TimS
  • TimS
  • Advanced Member
30 June 2021 07:23:54

Really quite incredible readings over in Canada. This is so far outside std deviation as to be utterly freakish. Even with global warming I would expect that record will last many years or decades. 


Meanwhile it's due to be 17C in London today. A bit of sharing wouldn't go amiss: BC could climb down from 49C to a more reasonable 35C, and we could take those 14C and add them to our current temperatures in the South East. 


Brockley, South East London 30m asl
Hungry Tiger
30 June 2021 09:25:20


Really quite incredible readings over in Canada. This is so far outside std deviation as to be utterly freakish. Even with global warming I would expect that record will last many years or decades. 


Meanwhile it's due to be 17C in London today. A bit of sharing wouldn't go amiss: BC could climb down from 49C to a more reasonable 35C, and we could take those 14C and add them to our current temperatures in the South East. 


Originally Posted by: TimS 



Gavin S. FRmetS.
TWO Moderator.
Contact the TWO team - [email protected]
South Cambridgeshire. 93 metres or 302.25 feet ASL.


30 June 2021 09:47:51


I am wondering what the height from the seal levels for Lytton? because if they can managed to reach just close to 50C while Death Valley which sit well below sea levels only reached 52C and 53C the highest for this month.  We cannot even get a 25C in the UK nowadays here and lost chance of 42C at least when France hit 46C due to clouds interruptions that give out only 38.7C.  I remember posters got stress with clouds coming and spoil it.  Also in July 1st 2015 when it reached 33C at 9am only to hit by clouds for few hours during the prime rising temps time.


Originally Posted by: Jiries 


Lytton is at 225m above sea level so fairly high.


The diurnal variation in temperature has also been very high. Temperatures have fallen to just above 20C on each of the past few nights.


The diurnal variation for 29th June was 28.8C.


The latest overnight reading shows the 09z temperature was still at 29.3C. That is 2.2C above the reading for the same time yesterday.

Quantum
30 June 2021 12:19:07

My view is that this is probably something like a once in a 1000 year event. It will be, probably, the most extreme weather event any of us have ever observed anywhere on the planet during our entire lifetimes. I cannot think of any weather event anywhere that comes close to this on its rarity.


Climate change will have helped by shifting the entire distribtution along a couple of degrees, but even without a background global warming the record would not have been in doubt and it would still be extreme beyond belief.


Think about this. A place in Canada, which did not hold the record before, just broke the record for the entire country, for the entire year, three times in a row. the 49.6C Lynton record is so extreme that Canada has just jumped from being rank 50 to rank 25 in terms of countries ranked by highest recoreded temperature. And that occured in June, not July or August. It is very unusual for a country to have its highest ever recorded temperature in June. Here's a challenge, find some examples that didn't occur during this heatwave. The event was so extreme that I can pretty much guarantee about 90% of all northern hemisphere June temp records happened during this heatwave.


It is simply the most extreme weather event we have or will ever see. More unlikely than Hurricane Patricia in 2015


 


 


 


2024/2025 Snow days (approx 850hpa temp): Total: 3 days with snow/sleet falling
18/11 (-6), 19/11 (-6), 23/11 (-2)
2023/2024 Snow days (approx 850hpa temp): Total: 8 days with snow/sleet falling
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)
2022/2023 Snow days (approx 850hpa temp): Total: 7 days with snow/sleet falling.
18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)
2021/2022 Snow days (approx 850hpa temp): Total: 12 days with snow/sleet falling.
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)
Bolty
30 June 2021 12:27:53


My view is that this is probably something like a once in a 1000 year event. It will be, probably, the most extreme weather event any of us have ever observed anywhere on the planet during our entire lifetimes. I cannot think of any weather event anywhere that comes close to this on its rarity.


Climate change will have helped by shifting the entire distribtution along a couple of degrees, but even without a background global warming the record would not have been in doubt and it would still be extreme beyond belief.


Think about this. A place in Canada, which did not hold the record before, just broke the record for the entire country, for the entire year, three times in a row. the 49.6C Lynton record is so extreme that Canada has just jumped from being rank 50 to rank 25 in terms of countries ranked by highest recoreded temperature. And that occured in June, not July or August. It is very unusual for a country to have its highest ever recorded temperature in June. Here's a challenge, find some examples that didn't occur during this heatwave. The event was so extreme that I can pretty much guarantee about 90% of all northern hemisphere June temp records happened during this heatwave.


It is simply the most extreme weather event we have or will ever see. More unlikely than Hurricane Patricia in 2015


 


 


 


Originally Posted by: Quantum 


I agree with this viewpoint. The pattern that has occurred across western North America would have still produced an exceptional heat wave even before the industrial era, but it has been excerbated by climate change. Without any background warming, we may still have seen the Canadian record go, but it may have been a high of 45/46°C, instead of the 49.6°C we have seen.


Scott
Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.
My weather station 
Quantum
30 June 2021 12:35:38


 


I agree with this viewpoint. The pattern that has occurred across western North America would have still produced an exceptional heat wave even before the industrial era, but it has been excerbated by climate change. Without any background warming, we may still have seen the Canadian record go, but it may have been a high of 45/46°C, instead of the 49.6°C we have seen.


Originally Posted by: Bolty 


Indeed. Looks like you could blame maybe 2C of it on climate change. But look how unremarkable the area is for the local effect of Global warming. If this kind of thing was going to happen anywhere you would think Russia or somewhere in the arctic.


The difficulty, I suppose, is acessing the impact of global warming on the likelyhood of this synoptic situation happening. I mean we can't rule out these synoptics actually being less likely due to climate change rather than more likely.


Making Sense of 'Climate Sensitivity' – Climate Change: Vital Signs of the  Planet


2024/2025 Snow days (approx 850hpa temp): Total: 3 days with snow/sleet falling
18/11 (-6), 19/11 (-6), 23/11 (-2)
2023/2024 Snow days (approx 850hpa temp): Total: 8 days with snow/sleet falling
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)
2022/2023 Snow days (approx 850hpa temp): Total: 7 days with snow/sleet falling.
18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)
2021/2022 Snow days (approx 850hpa temp): Total: 12 days with snow/sleet falling.
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)
picturesareme
30 June 2021 12:41:10


My view is that this is probably something like a once in a 1000 year event. It will be, probably, the most extreme weather event any of us have ever observed anywhere on the planet during our entire lifetimes. 


 


 


 


Originally Posted by: Quantum 


Well considering it was less than 100 years ago when 45C was being recorded in Canada, i don't think this is a once in 1000 year event. Canada is a large country with vast emptiness, and i don't doubt for one minute that similar temperatures have occurred there but simply being missed due to the vastness. 

Quantum
30 June 2021 12:43:44


 


Well considering it was less than 100 years ago when 45C was being recorded in Canada, i don't think this is a once in 1000 year event. Canada is a large country with vast emptiness, and i don't doubt for one minute that similar temperatures have occurred there but simply being missed due to the vastness. 


Originally Posted by: picturesareme 


But the 45C was set during a more appropiate time of year, during more sensible (though unusual) synoptics and was hard fought. The 45C record was unremarkable amongst records if that makes sense. This one is a record of records in many respects.


It would be like getting a bunch of lottery winners together and then finding the lottery winner that won the lottery again.


 


2024/2025 Snow days (approx 850hpa temp): Total: 3 days with snow/sleet falling
18/11 (-6), 19/11 (-6), 23/11 (-2)
2023/2024 Snow days (approx 850hpa temp): Total: 8 days with snow/sleet falling
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)
2022/2023 Snow days (approx 850hpa temp): Total: 7 days with snow/sleet falling.
18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)
2021/2022 Snow days (approx 850hpa temp): Total: 12 days with snow/sleet falling.
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)

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