Germany’s DWD Weather Service Redefines “Heat Wave”: Now 3 Consecutive Days Of Warm Weather!

From the NoTricksZone

By P Gosselin 

Like the WHO changed the definition of a “pandemic”, the DWD has changed the definition of a “heat wave”…all to falsely generate the sense of a crisis? 

Repeat a lie often enough, and in no time the masses start believing it’s true. Probably few institutions know this better than Germany’s DWD national weather service.

In order to get people to believe more in runaway warming, they have to be led to believe that “heat waves” are occurring ever more often. Even though it’s been not an unusually hot summer here in Germany (yes, it’s been hot at times), all we hear on the media are news about heat wave after heat wave.

To allow this, it seems the DWD changed it’s definition of “heat wave” so that now any brief period of warm temperatures qualifies as one. What used to be defined as a period of 5 consecutive days with highs over 30°C, has been changed to a period of just three(!) consecutive days – with a high of 28°C or more. That’s all it takes, folks! It’s truly baffling that Florida could be so popular among retirees.

Hat-tip: Snowfan

Here’s what the DWD writes at its website (excerpt):

A heat wave is a multi-day period of unusually high thermal stress. A heat wave is an extreme event that can damage human health, ecosystems, and infrastructure. In our latitudes, heat waves often occur in connection with persistent summertime high-pressure conditions (high-pressure area).

Internationally, there is no uniform definition of the term heat wave. Definitions are often based on a combination of percentile-based thresholds (e.g. 98th percentile of daily maximum values and a minimum duration e.g. 3 days).

The following heat wave definition is used in the production of the “Climate Maps of Heat Waves” in the German Weather Service:

Individually for each grid point, a threshold value for each day – corresponding to the 98th percentile – is calculated from the daily temperature maxima of the reference period (1961-1990). To increase the database of 30 values (1961-1990), the 15 days before and after the date are also used, which increases the database to 930 values and also results in smoothing. If the current grid values of the temperature maximum are above this climate threshold and above 28 °C for 3 consecutive days or more, a heat wave is present for the marked area and period.

Heat waves pose a major risk to health, especially for the elderly and sick. For this reason, the German Weather Service uses its heat warning system to warn of days with high thermal stress on the basis of the felt temperature and a simulation model to calculate the heat stress indoors.”

It’s not clear when the DWD changed to this new, low-bar definition. The World Meteorological Organization defines a heat wave as five or more consecutive days of prolonged heat in which the daily maximum temperature is higher than the average maximum temperature by 5°C (9°F) or more.

But for the DWD, a regular warm summer weekend – when it’s just barely warm enough to swim in comfort in the daytime – now qualifies as “unusually high thermal stress”. Result: the media play along and keep reporting on “another heat wave” almost on weekly basis.

Heat wave after heat wave

If we take Berlin and apply the DWD’s new definition for the year 1992, for example, Germany’s capital in fact saw 7 heat waves that summer: May 21-23, June 2-5, June 27 – July 1, July 8-10, July 19-21, July 30 – August 3 and August 5-10. Yet, back then Germans were not bombarded by the media with news of heat waves. Back then it was: it’s summer, stupid!

And note how the DWD uses the ancient 1961-1990 reference period for comparison, a time when the mean temps were about a degree lower and all the talk was about global cooling and the next ice age. This is the trick used to justify 28°C as “unusually high thermal stress”. Never mind that days with highs in the upper 20s often come with nights with temps in mid teens that have people grabbing their jackets.

Not a super hot summer

Anecdotally, this year I can say it’s been a warm and pleasant summer here in northwestern Germany; it was certainly too dry. But I didn’t think it was “a scorcher” because so many evenings were too cool to sit outside without a jacket. Moreover, there was not a single night that I found it to be difficult to sleep. And during earlier hot German summers, I remember having the electric fan running in the office for days. This summer I never had to use it once.

It’s a bit like the WHO changing its definition of a “pandemic” so that authorities are now able to declare a crisis anytime a grippe breaks out.

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August 29, 2022 10:05 pm

WHO changed pandemic definition , in a small way, way back before 2010

The Covid outbreak was definitely a pandemic under any definition. Just thought I would correct the authors claim

KcTaz
Reply to  Duker
August 29, 2022 11:18 pm

Duker, I would tend to agree with you except for the fact that the PCR test was so notoriously unreliable and so easily scammed, even the CDC got rid of it in favor of the Antigen test and the fact that hospitals in the US were reimbursed many thousands of more dollars for ventilator patients if they were diagnosed with Covid than if they were not, so I doubt we have any true idea of how widespread and deadly Covid really was. After all, the flu has mysteriously “disappeared” since Covid was unleashed upon us. Also, there are many reported cases of even victims of motorcycle accidents having their cause of death listed as Covid. In the UK, during Covid, the average age of death during this period, per UK Gov. statistics, was 82, well above normal life expectancy.
You may well be right but there are many caveats to your conclusion.

Reply to  KcTaz
August 29, 2022 11:44 pm

Flu disappeared ?
October 1, 2021–June 11, 2022, CDC estimates that influenza virus infection resulted in 8.0–13.0 million symptomatic illnesses, 3.7–6.1 million medical visits, 82,000–170,000 hospitalizations, and 5,000–14,000 deaths in the United States.”
You are a complete fantacist.
The US excess deaths , not even thinking about the cause. In last few years way exceeds the ‘official ‘ Covid death numbers – which normally require a diagnosis but plenty still died outside medical system.
That’s 1 mill who died who otherwise would not. Ever wondered what the cause was?

KcTaz
Reply to  Duker
August 30, 2022 12:49 am

Duker, can you provide a link to your flu stats, please? I’d appreciate it. Also, the dates you provide for excess deaths do coincide with dates for excess deaths which may well have been caused by the vaccines for Covid, not Covid.
Also, I said I tend to agree with you, I merely pointed out info that might indicate the Covid death numbers may well be greatly exaggerated and the reasons why. We don’t know. Plus, your data should start from 1/20, at least, not 10/21.

Reply to  KcTaz
August 30, 2022 2:20 am

CDC
https://www.cdc.gov/flu/about/burden/preliminary-in-season-estimates.htm
( Clue to find source , you google about 10 words to find a match)
heres the data for excess mortality , notice the peaks . Its clear you have gone down the rabbit hole as the vaccines didnt come till well after half a mill died in US.

https://ourworldindata.org/excess-mortality-covid

None of this is related to the German weather service fiddling the definitions as thats what they all do.

Scissor
Reply to  Duker
August 30, 2022 4:46 am

Both of these topics are of interest to many. In any case, you started the thread in your response to the definition of “pandemic” so perhaps a little less condescending tone is in order.

Your statement about vaccines didn’t come till well after half a mill died in the U.S. is not quite correct. A half a million covid deaths were recorded to have occurred in the second week of February of 2021. There was an overlap of at least a couple of months.

KcTaz reasonably responded to your initial comment and brought up some good points.

I think we can all agree that established definitions are seemingly being changed often to meet certain narratives.

Drake
Reply to  Scissor
August 30, 2022 11:21 am

Like the NEW definition of Recession in the US. Not to worry, after the October GDP numbers for the third quarter come out, the Dems and MSM will no longer have a leg to stand on, not like they ever did.

roaddog
Reply to  Drake
August 30, 2022 10:18 pm

Thereby leading to the latest and greatest redefinition.

Reply to  Drake
August 31, 2022 6:59 am

They’ll probably come up with some convoluted way to call it a “recovery” instead.

Reply to  Scissor
August 30, 2022 8:29 pm

The author said that WHO changed the definition of pandemic without saying it was before 2010 and it’s wasn’t in the same way as the trickey of the German weather service

Reply to  Duker
August 30, 2022 7:07 am

Preliminary estimates are not factual data for actual infections. 
You are playing a pea game trying to force attention on the wrong cup.

RevJay4
Reply to  ATheoK
August 30, 2022 9:43 am

Then there is that pesky word “estimates”.

Reply to  ATheoK
August 30, 2022 8:31 pm

That’s because the final data takes a while but will only be very small changes. Check out the prelim and final data before 2019
Of course 0.5 mill excess deaths isn’t in the estimate margin of error, that’s only before vaccines arrived

Old Man Winter
Reply to  KcTaz
August 30, 2022 10:32 am
Reply to  Old Man Winter
August 30, 2022 12:31 pm

German report reveals 1 in 25 insured individuals treated for Covid shot reactions – the vaccine reaction
Take these numbers with the usual “grain of salt”. Nevertheless:
Not long ago this number was 1 in ~1000 – if people keep taking these toxic jabs it will be 1 in 1.
 
This is insane – it’s obvious the jabs do not work on current Covid-19 variants – they probably never did work, even on the Alpha strain, and clearly cause much more harm (vaccine injuries and deaths) than good.
 
Covid-19 lockdowns and vaccines were always a corrupt money game. Told you so 29 months ago.
 
It used to be that corrupt governments and health authorities were slagging the unvaxxed as miscreants who were selfish and insensitive to the safety of the vaxxed.
Now some of the unvaxxed are retaliating, calling themselves “purebloods “and the unvaxxed “mudbloods”.
This is all divisive nonsense, encouraged by our corrupt governments, health authorities and big pharma.
 
Bottom Line:
Most of us have family and friends on both sides of the vaxxed/unvaxxed divide. It’s not a war or a contest – it’s a fraud and a disaster that will kill and injure many millions.
 
THINK ABOUT CURES.
I (and many others) have found Ivermectin is an effective cure for minor vaccine injuries such as chronic bleeding, etc. Start there.
 
More serious vaccine injuries, including an explosion of cancers, will require much more work.
 
Only the greatest of fools will take more toxic Covid-19 vaxxes – sadly – Darwin Awards.
 

Scissor
Reply to  Allan MacRae
August 31, 2022 7:10 pm

More positive news on Ivermectin.

https://www.cureus.com/articles/111851/metrics

KcTaz
Reply to  Old Man Winter
August 30, 2022 12:51 pm

Jo’s study is excellent. Thank you for posting!

GuyFromBerlin
Reply to  Duker
August 30, 2022 12:53 am

And it’s 1 mill that will NOT die again of diabetes, cancer, cardiac arrest, Alzheimer’s and other typical end-of-natural-lifespan diseases. All told, 99.6% of all who had Covid are still alive. I leave it to you to estimate about how many 90+ year olds succumbing to Covid or other types of Flu or Common Cold in 2020 would be alive today. Not even half I guess, given that most victims were already in care homes, no longer fit enough to care properly for themselves and preparing to meet their maker in the very near future anyway. Quite probably Covid hastened their demise, but that’s not _excess_ deaths but just deaths _brought forward_ a few weeks or month.

Reply to  Duker
August 30, 2022 10:28 am

Some caused by the Covid vaccine

Reply to  Richard Greene
August 30, 2022 8:35 pm

Every vaccine has side effects and some mortality. That’s why they do trials . Covid trials had massive numbers of people in trials . Far more than most other well known medicines.
Same result as most other vaccines trials , very safe

roaddog
Reply to  Duker
August 30, 2022 10:20 pm

Hilarious. Voiding the control group by vaccinating them is, of course, common scientific practice. Sell crazy somewhere else.

Reply to  Duker
August 31, 2022 6:56 am

Just curious: what do you think would have been the reaction had they run the trials and declared the vaccines to be unsafe and not ready for release?

davetherealist
Reply to  Duker
August 30, 2022 11:19 am

The publication reports approximately 600 deaths attributed to influenza during the 2020-2021 flu season in the United States, which typically peaks between December and February. Compared to previous years, where the numbers in the 2019-2020 season saw roughly 22,000 deaths, and the 2018-2019 season had more at 34,000 deaths, 600 is a 97 percent drop. So why is that happening? Are the typical flu deaths being categorized as something else?

roaddog
Reply to  davetherealist
August 30, 2022 10:20 pm

You think?

davetherealist
Reply to  Duker
August 30, 2022 11:28 am

Virtually every Pneumonia and Influenza death for nearly 18 months were coded as CoViD.  As were any Upper Respiratory illness deaths.   I do not think ‘excess’ mortality is a good measure of anything.  It assumes that death rate is constant, but we have an aging population, we have a less healthy population.  There was a massive increase in drug overdoses and suicides. The vax killed how many?  To claim that the increase is attributable entirely to a disease where 90% are Asymptomatic is wrong.  Too much money involved to slow the train.  50% of hospitalized patients were killed by the ventilator in the first 3 months of 2020. 
 

Mac
Reply to  KcTaz
August 30, 2022 3:36 am

The antigen test has a very high false positive test.

KcTaz
Reply to  Mac
August 30, 2022 12:53 pm

Really? Well, shoot! At the risk of angering Dukar, again, do you have a link for that?

Reply to  KcTaz
August 30, 2022 7:04 am

After all, the flu has mysteriously “disappeared”

As did Pneumonia.

Reply to  KcTaz
August 30, 2022 10:26 am

The Covid statistics were exaggerated but US excess deaths in 2020 were not. The only likely cause in 2020 was Covid. Agreed that most deaths were the elderly. Excess deaths continued through June 2022 so far. Covid is not causing the excess deaths in 2022 because the predominant Omicron strain is a coronavirus common cold with an extremely low infection fatality rate.

Reply to  Richard Greene
August 30, 2022 12:06 pm

“The only likely cause in 2020 was Covid.”

You don’t think delayed treatment for medical issues or suicide from depression caused by the lockdowns had any impact?

I’m not saying covid wasn’t even a major contributor, but those MUST be factored in as well.

KcTaz
Reply to  TonyG
August 30, 2022 1:03 pm

We should, also, remember the Governments refusal to provide, or even allow, early treatment for Covid to the point that it was, almost, forbidden. I can’t think of any other disease where sick people were told to stay home until they can’t breathe anymore. Insane!
Given this, many people could have died from undiagnosed flu because the doctors wouldn’t see or treat them as well as from Covid for the same reasons?
Florida had great success with Monoclonal Antibody treatment. You know how successful it was because one of the first things Biden, irrationally, did was to try to prevent states from having access to that treatment. DeSantis had to go buy his own to continue treating Covid patients. It’s like they wanted people to die.

Reply to  Duker
August 30, 2022 3:08 am

Redifinition of established concepts… Thank you very much Prof Michel Foucault, for this huge leap forward in the destruction of science and culture!

Reply to  Duker
August 30, 2022 8:16 am

“The Covid outbreak was definitely a pandemic under any definition.”

No, Covid-19 was a WHO scam. I called it correctly in a note published on 21Mar2020, ~6 days into the needless, destructive lockdown. Covid-19 was an illness that was only dangerous to the very elderly and infirm, but not even close to a real epidemic. Six months later on 4Oct2020, world experts wrote the same conclusion in the Great Barrington Declaration.

I wrote our politicians and media on 8Jan2021 to NOT release these toxic Covid-19 “vaccines”. These so-called “vaccines” are bio-weapons. 

In Alberta now, the leading cause of death is listed as “unknown”. It’s the Covid-19 vaxxes.

I’ve taken flu shots every year including 2019, but no longer – trust is gone.

German Report Reveals 1 in 25 Insured Individuals Treated for COVID Shot Reactions – The Vaccine Reaction
Not long ago this number was 1 in 1000 – if people keep taking these jabs it will be 1 in 1.

https://wattsupwiththat.com/2022/06/29/extreme-temperatures-linked-to-nearly-1-million-deaths/#comment-3545699
[excerpts]

For so many of our analyses on Climate and Covid, it is useful to simply use “All-Cause Total Deaths”, in part because the detailed illness data has been so corrupted. Total deaths is hard to corrupt because it is binary – a zero or a one. BE A “ONE”!
 
In Alberta and Canada there was no “Total Death Bump” (increase in the trend) in the 12 months ending 1July2020 – the end of the first “flu season” of Covid-19. None! In Alberta the average age of death attributed to Covid-19 to this date was 82 – think about what that means).
(See my paper CorrectPredictions.ca for a plot of the six-year, no-bump, death trend in Alberta and Canada to 1July2020.)
 
No Total Death Bump means no real pandemic – an illness yes, but certainly not a pandemic – for a real pandemic you’ve got to kill a lot of people. Canada did not do anything really sensible to treat Covid, except we did do early treatment, but still forbade Zinc ionophores Hydroxychloroquine and Ivermectin (due to the corrupt rat-bastards in our health system who were paid to push the toxic “vaccines” – same as the USA, the UK, and elsewhere).
 
The USA solved that (lack of total mortality) problem by paying hospitals to perform incredibly-wrong, very-late-and-extreme treatment of Covid-19 patients with remdesivir (which causes liver and kidney failure) and ventilators to finish them off. Also in New York
and nearby, patients with active Covid were put back into old-folks homes to infect them.

Based on Canada’s successful experience, ~all of these deaths were avoidable with early treatment.

Reply to  Allan MacRae
August 30, 2022 10:42 am

“No, Covid-19 was a WHO scam. I called it correctly in a note published on 21Mar2020, ~6 days into the needless, destructive lockdown. Covid-19 was an illness that was only dangerous to the very elderly and infirm, but not even close to a real epidemic. ‘

Deluded nonsense.

Reply to  Richard Greene
August 30, 2022 11:24 am

Richard Greene, you do these “drive-by shootings” based on zero evidence, zero knowledge, zero scholarship and zero predictive track record.

It is a reprehensible practice that corrodes our ability to make rational decisions.” – Richard Lindzen, 1991 

Drake
Reply to  Richard Greene
August 30, 2022 11:33 am

Very well done, I really like all the evidence you provided to refute his assertions.

KcTaz
Reply to  Drake
August 30, 2022 1:09 pm

Drake, well played, sir, well played.
I can’t even offend Dukar again by asking for a link because that is so silly Richard can’t have one pointing to any science substantiating his response of “deluded nonsense.”

Sommer
Reply to  Allan MacRae
August 30, 2022 5:36 pm

Allan MacRae. thank you for your ability to make intelligent assessments. I remember clearly when you called it correctly  on 21 March 2020. 6 days into the needless, destructive lockdowns.                                                       You’ve been correct about so many things.

Reply to  Sommer
August 30, 2022 11:45 pm

Thank you Sommer – but I hardly saved any lives, including friends and family who just don’t believe it can be this incredibly insane. It’s not about poor little me, but just imagine KNOWING how this train wreck will end (millions of vaccine deaths and serious injuries), issuing warning after warning, and nobody listened. It’s Kafkaesque – on one of his really bad, totally-fubar days.
I did not publish on Covid-19 until I was certain – by ~Feb 2020 the data from the Diamond Princess cruise ship and limited other quality data (amid so much fraudulent BS) was convincing – this flu was only dangerous to the very elderly and infirm – and it was definitely NOT a pandemic. But I only had the conviction to publish on 21Mar2020 when my physician friend told me that our hospitals had been emptied for a “tsunami of Covid patients” WHO NEVER ARRIVED! I called the fraud then – it helped to recognize the propaganda patterns of the Climate scam, and then to see both the Climate and Covid scams being pushed by the same “usual suspects” at the UN, the WEF and the WHO.
I was suspicious that the Covid-19 “vaccines” had been unsafely and unethically rushed into use. I then started reading the few ethical physicians and researchers who condemned the toxic “vaccines”.
There was also some good data from other countries to compare with the USA. The USA could not have done it worse – they killed off many needlessly with their “stay home til you’re dying” nonsense, then remdesivir and ventilators. As I’ve said previously, Canada had NO total death bump vs previous years to 1July2020 – and that means there was NO real pandemic – not even close to one.
I’m just repeating everything I’ve written before, because it’s late, I need sleep (beaucoup) and I’m totally tired of this scam, this slaughter of innocents, this culling of humanity.
Best regards, Allan MacRae in Calgary. 

Tony K
Reply to  Duker
August 30, 2022 1:17 pm

There was never a pandemic.

August 29, 2022 10:14 pm

“Germany’s DWD Weather Service Redefines “Heat Wave”: Now 3 Consecutive Days Of Warm Weather!”

No, they haven’t done that. Firstly it is a definition used for the preparation of a particular map; there is no indication it is meant to be general. But there are two requirements:
1. If the current grid values of the temperature maximum are above this climate threshold (98th percentile for that day of the year)
2. and above 28 °C 
for 3 consecutive days or more
The first is the more exacting requirement in most places.

Waza
Reply to  Nick Stokes
August 29, 2022 11:07 pm

Still stupid.
A. In the cooler north you could have 28.1 degrees and be a heatwave but in the warmer south you could have 30deg and not be a heatwave.
B. In June you could have 28.1 and be a heatwave but in July you could have 30 degrees and not be a heatwave.

Reply to  Waza
August 29, 2022 11:18 pm

I think for the purposes of the map, that is intentional. It means hot for the place and time of year.

Reply to  Nick Stokes
August 29, 2022 11:46 pm

Guess what the media will use, purposes of map will mean lots of bright red, shock a heat wave

Reply to  Duker
August 29, 2022 11:51 pm

The map definition needs some heavy computation.

KcTaz
Reply to  Duker
August 30, 2022 1:13 pm

The weather service has been doing just that where I live. All summer, they have had my location RED and exactly the same as Phoenix, Az. even though our temperatures have been 20 to 30 or more degrees cooler than Phoenix every single day. It makes no sense.

Reply to  Nick Stokes
August 30, 2022 1:32 am

Before, a heat wave was defined with
5 consecutive days with 30°C or more.

Reply to  Krishna Gans
August 30, 2022 2:05 am

Who defined it so? Do you have a link?

Here the DWD is saying
Internationally, there is no uniform definition of the term heat wave.”
In Australia it used to be 3 days above 100°F. I think it is still similar.

Reply to  Nick Stokes
August 30, 2022 3:13 am

For the UK

A UK heatwave threshold is met when a location records a period of at least three consecutive days with daily maximum temperatures meeting or exceeding the heatwave temperature threshold. The threshold varies by UK county.

https://www.metoffice.gov.uk/weather/learn-about/weather/types-of-weather/temperature/heatwave

A new heatwave definition for the UK 2019
https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/wea.3629

Reply to  Krishna Gans
August 30, 2022 4:14 am

Here the WMO just says
A heat wave is broadly defined as a period of statistically unusual hot weather persisting for a number of days and nights.  Indices based on local climatological conditions are used to objectively characterize and declare a heat wave.”

Reply to  Nick Stokes
August 30, 2022 5:53 am

If that’s the case, then there is no objective scientific standard by which to measure heat waves, and the media has no basis to claim they are increasing.

Reply to  James Schrumpf
August 30, 2022 7:09 am

They say exactly the opposite:
 Indices based on local climatological conditions are used to objectively characterize and declare a heat wave.”
They are just saying that it is up to the local mets.

Reply to  Nick Stokes
August 30, 2022 5:16 pm

I suppose one could look at like the definition of a rogue wave: waves whose height is more than twice the significant wave height ( Hs or SWH), which is itself defined as the mean of the largest third of waves in a wave record.

In a bay with SWH of 1 foot, a rogue would only have to be 2 feet to achieve that lofty title.

Reply to  James Schrumpf
August 30, 2022 7:10 pm

The primary condition (DWD) is from distribution, ie percentile. That could give a not very hot heat wave in winter. So they add the extra requirement of 28C.

Reply to  Nick Stokes
August 30, 2022 3:45 am

The graph was designed for some special longlasting heatwaves, the header shows the 30°C

comment image

Reply to  Nick Stokes
August 30, 2022 7:57 am

“In Australia it used to be 3 days above 100°F. I think it is still similar.”

Actually it was 5 days. That was till the snowflakes started melting.

Reply to  Krishna Gans
August 30, 2022 3:05 am

The UK Met Office definition
A UK heatwave threshold is met when a location records a period of at least three consecutive days with daily maximum temperatures meeting or exceeding the heatwave temperature threshold. The threshold varies by UK county.

According to our local TV weather the county where I live, Derbyshire, has a 1’C different definition of a heatwave than the neighbouring county. Nottinghamshire. I’m not sure how that affects the forecast as we both get the same one. I’ve never heard them forecast a heatwave in one county only. I haven’t heard them report one for only one county either.

Reply to  Nick Stokes
August 30, 2022 5:51 am

Nick, could you explain what this means in real terms:

the current grid values of the temperature maximum are above this climate threshold (98th percentile for that day of the year

It doesn’t really make sense. Why is it that simple things — “5 days with high temperatures above 30 C” — have to become complicated things — “The map definition needs some heavy computation” — without any indication they are improving results, but are only making it more difficult for non-insiders to validate?

Reply to  James Schrumpf
August 30, 2022 7:11 am

They are trying to implement what you expect a heat wave to mean. Something that is hot, and unusual for the location. So they define it in probability terms.

Mr.
Reply to  Nick Stokes
August 30, 2022 8:18 am

The nub of this conversation is that different weather effects can be expected in all the different climates around the world at different times and to different degrees of sensibility.

Which prompts me to again observe that “averaging” of climatic metrics around the globe to devise one value is nonsensical.

Reply to  Mr.
August 30, 2022 8:51 am

Especially if you look at the state of the weather stations used by GHCN. They claim to have over 20,000 stations, which is true; but only about 1800 of them actually have full data coverage over the 30-year range used for a baseline. That includes 1981-2010 and 1991-2020.

It might include any 30-year period, but I haven’t looked at the data in a while.

About 1200 of the stations are in the US and North America, with another bunch in Europe, Russia, China, and Australia. Most of South America is left out, as is Africa and SE and SW Asia.

Now imagine running homogenization and gridding and weighting and interpolation across that mess and pretending you know anything about the “average temperature anomaly” of the planet.

Reply to  James Schrumpf
August 30, 2022 4:33 pm

“Now imagine running homogenization and gridding and weighting and interpolation across that mess and pretending you know anything about the “average temperature anomaly” of the planet.”

I don’t imagine it. I do it, every month (eg July). Though I use raw data, not homogenised. It makes little difference; I still get the same result as GISS does a week or so later.

Reply to  Nick Stokes
August 30, 2022 5:20 pm

Well, sure you would. Doesn’t mean that the result has any significance.

When calculating your baseline, what’s the limit you allow for using a station’s data? If you’re doing the August average for a station for the years 1991-2020, or whatever, what’s the most missing (-9999) months you allow before tossing the station?

Reply to  James Schrumpf
August 30, 2022 11:44 pm

I don’t calculate an average for a station. I calculate a global average by least squares fit. That yields offsets for each station, from which comes the anomaly.

GHCN has quality control on its stations. They always have enough months for the LS fit.

Geoff Sherrington
Reply to  Nick Stokes
August 31, 2022 9:49 pm

Nick,
After years of fiddling with Aust heat waves, I lean to a type of definition that measures how hot the days were, how long it lasted and how it compares with earlier events at that station. That is why I continue to present a salad of results for each station I analyse, including Rae and adjusted data, heatwave durations of 1, 3, 5 and 10 consecutive days plus a display of all years of data and a subset of the Top 40 years. There is enormous variation among all these displays, allowing interpretation to suit whatever floats your boat.
Weaknesses in this approach include consecutive days that rate a mention except that 1 cool day in the middle upsets it; it does not use Tmin, which could help wrt hospitalization needs; it omits factors like wind speed and humidity for comfort and fire impacts; it chooses only one heatwave a year when a year could have several; confusion of dates of heatwaves starting can happen at ends of calendar years; and more.
You reach a point where ease of computing conflicts with wider definitions, so you present what you hope is adequate of the raw essence.
Then people interpret it to suit preconceptions, which is poor science and sad. Geoff S

Reply to  Nick Stokes
August 30, 2022 8:44 am

In that context and with that map, what would define a July heat wave in Boulder, CO vs in Elkins, WV? Elkins has a USCRN station, so its temps are well-documented.

August 29, 2022 10:24 pm

There is actually an international standard for “heat wave”, although now being ignored. The IMO website says a heat wave is any period of 5 consecutive days for which the high temperature is 5C (9F) or more higher than the average high temperature for that day for the period 1960 – 1989. Very inconvenient for those trying to scare people. (I looked it up about 2 weeks ago – it could, of course, have been modified or disappeared between then and now.)

I doubt that any “heat wave” reported this summer met that definition.

Reply to  Retired_Engineer_Jim
August 29, 2022 10:45 pm

For where I am in the UK it didn’t. We haven’t had a three day heatwave either.

Reply to  Ben Vorlich
August 30, 2022 12:40 am

Are you still alive over there? Reports were that UK was generally frying to death, or was it flooding all over? I can not keep up with all the climate catastrophe going on simultaneously. I wouldn’t want to get your next Winter heating energy bill BTW…Oh dear..

Reply to  Steve G
August 30, 2022 3:14 am

So far! I’m hoping for heatwaves in January and February though

Geoff Sherrington
Reply to  Retired_Engineer_Jim
August 31, 2022 9:52 pm

There are miscellaneous other definitions that cloud the scene. Personally, simple as possible is best; too liberal leads to silly claims of danger.
There is an emerging, sometimes silly field of marine heatwaves. Geoff S

H.R.
August 29, 2022 10:40 pm

Sooner than later, they’ll point to middle-aged women having hot flashes as proof of Global Warming™.

Glenn
Reply to  H.R.
August 30, 2022 12:30 am

They aren’t that far off now…

“Climate change and its potential impact on menopausal hot flashes”
https://pubmed.ncbi.nlm.nih.gov/32108735/

H.R.
Reply to  Glenn
August 30, 2022 4:37 am

Good grief, Glenn! They are so far off the rails you can’t even poke fun at ’em.

What you’d think is a bit of silly nonsense about Climate Change® that no one could possibly believe turns out to be published peer reviewed silly nonsense.

Is there some large cash prize we don’t know about for publishing the most ridiculous claim?

roaddog
Reply to  H.R.
August 30, 2022 10:31 pm

As vigorously as it is being pursued, I can only conclude that the cash prize is valued in the Billions.

michael hart
August 29, 2022 10:44 pm

One hot day in a row traditionally counts as a heat wave in the UK.

Growing up, “Phew. What a scorcher!” in the tabloids was part of British parlance.

Reply to  michael hart
August 30, 2022 12:43 am

Mad dogs and Englishmen go out in the midday sun…..

griff
Reply to  michael hart
August 30, 2022 1:34 am

Yes and in those days the scorcher was usually 28C.

Now we regularly see temps over 30C, over 35C

Alba
Reply to  griff
August 30, 2022 2:01 am

Data, data, data, please, not unsubstantiated assertions.

Reply to  griff
August 30, 2022 3:19 am

Regularly? over 35’C didn’t manage that where I am this year, I can’t speak for the MWP or Roman Climate Optimum though.
Melting tarmac and buckled railway lines are a regular occurrence in that they happen every few years.

Reply to  griff
August 30, 2022 6:03 am

And the reason is ?
It’s the sun, stupid 😀
Several records have been broken looking at daily sunshine duration.
https://mobile.twitter.com/Kachelmannwettr/status/1564599074694856705?cxt=HHwWgoC88bOkybYrAAAA

Reply to  griff
August 30, 2022 10:37 am

35C. OMG.

Reply to  griff
August 31, 2022 1:49 am

No we don’t regularly see temperatures >30 or >35, certainly north of Watford. The south east is only 20 miles from continental Europe and regularly has weather patterns from there, both in winter and summer. It depends almost entirely on the position of the jet stream, to the north we get a hot dry summer, to the south we get a cool, wet summer. Blocking highs extend the length of the hot summer (1976, 2003) or the cold winter (1962/63; 2017/2018)

August 29, 2022 10:53 pm

How many more blatant frauds and idiotic propaganda will have to be committed before the population acknowledges that most of those institutions (WMO, DWD, BOM, Meteo France and many others, as the UN, most of the “NGO”, etc.) are led by corrupted crooks ?

KcTaz
Reply to  Petit_Barde
August 29, 2022 11:37 pm

I don’t know but this notion has taken root throughout most of the world or, at least, the parts of the world blessed with prosperity and such a high level of living and comfort the Kings of yore would have envied us. Only with great comfort can a people obsess about a meaningless few degrees of temperature increase and natural disasters which have always plagued Earth and are less common today than in many other times.
As for the theft being committed by the many corrupted crooks, it’s been seen before only it was brought on by high priests, pharaohs and other such leaders seeking to blame anything other than themselves for any and every disaster and demand sacrifice from the people to atone for their sins. Many folks, some male but mostly female were burned at the stake or hung for bad weather to atone for the sins they assumed were causing bad weather, illness and such.
This sort of behavior which is well evident today in our modern times makes one wonder how homo sapiens ever became the dominant species on Earth. We are so stupid it is truly amazing we ever ended up at the top of the food chain.

Reply to  KcTaz
August 30, 2022 10:40 am

Kings of yore would really have envied the official theft.

Reply to  Petit_Barde
August 30, 2022 7:22 am

“corrupted crooks” isn’t quite right. I don’t know the right word, something with more connotations than deluded, but it’s the same phenomenon that allowed people in the middle ages to send autistic young girls to be burnt at the stake, while believing they were doing good by saving the souls of the general public….

Bryan A
August 29, 2022 11:13 pm

Go back through the historic database utilizing the new criteria (28c – 3+ days) and calculate prior HEAT WAVE occurrence and duration data to determine if the new criteria actually creates an increased, decreased or null effect on the ratio of current heat events vs historic events

Reply to  Bryan A
August 30, 2022 6:38 am

That would be interesting.

Old Man Winter
August 30, 2022 12:10 am

Why would you expect anything less from The Team™!!!

namechn0.gif
Rod Evans
August 30, 2022 12:33 am

Well at least it is slightly more sophisticated than the BBC’s definition of a heat wave.
There, the term heat wave is adopted if there is a hot afternoon somewhere in London or the home counties.
Summer here in central UK has been dry this year. It has been great for outdoor activities , not so good for vegetable growers though.
I am sure it will be described as the hottest year in the satellite era notionally given as 1979.onward.
That period of reflection, conveniently avoids mentioning 1976. 1976 here in the UK is still the stand out hottest, longest, driest year, in modern times, post second world war.

griff
Reply to  Rod Evans
August 30, 2022 1:33 am

Summer in the UK saw 2 real heatwaves with 30C plus temperatures and high night time temps over several days.

(Between 18 and 19 July, the United Kingdom experienced its highest recorded minimum night time temperature, at 26.8 °C (80.2 °F) at Shirburn Model Farm, Oxfordshire. This is an increase of 2.9 °C from the previous record, set in Brighton in August 1990.Temperatures in many other parts of the country did not fall below 25 °C (77 °F), giving the UK its warmest ‘tropical night’ on record)

and it set a new record temperature (the previous record was broken in 33 places across the UK in the same day)

Alba
Reply to  griff
August 30, 2022 2:03 am

What a shocker: two real heatwaves. The end of the world is nigh.

Drake
Reply to  Alba
August 30, 2022 11:48 am

I down voted you.

You and griff are both incorrect, they were not REAL heat waves, they were both less than 5 days.

Don’t accept the modern Orwellian method of redefining long standing terminology. I hope for the day when a new US president issues the executive order to return all official US government definitions to those in 1960, you know before the SCOTUS started changing them, Like liable and vagrant.

i.e. No longer allow the use of “homeless” for a vagrant.

Don’t give griff an inch, he will always take a mile anyway.

roaddog
Reply to  Drake
August 30, 2022 10:33 pm

The Climate Overton Window.

DonK31
Reply to  griff
August 30, 2022 3:46 am

2 nights is 2 heatwaves?

Bryan A
Reply to  DonK31
August 30, 2022 8:35 am

Griffville

Reply to  griff
August 30, 2022 4:39 am

You are only becoming the boy who cried wolf. People aren’t stupid. They will recognize that the weather is changing very very little and in turn you will become a pariah.

I suspect you are unable to go outside and consistently tell what the temperature is within plus or minus 3 degrees. People learn that too. Your protestations will begin to fall on deaf ears when energy becomes unreliable.

Reply to  griff
August 30, 2022 4:47 am

Griff, how long is your record?

Reply to  David Kamakaris
August 30, 2022 5:15 am

It’s stuck

Mr.
Reply to  David Kamakaris
August 30, 2022 8:22 am

That’s rather a personal question.

But it was a bit cold the morning he measured it.

Reply to  griff
August 30, 2022 5:17 am

Summer in the UK saw 2 real heatwaves 

Only in the wettest of green dreams could a couple of warm days be called a heatwave

You’re too young to remember real heatwaves, Peter Pan

Reply to  griff
August 30, 2022 6:09 am

Do you know about groundfrost the last nights in 2 different German regions, east and western part ??

comment image

Are you aware of the snow bombs in Greenland ?

comment image

An overview of global temps:

comment image

UK-Weather Lass
Reply to  griff
August 30, 2022 7:52 am

“Summer in the UK saw 2 real heatwaves with 30C plus temperatures and high night time temps over several days.”

Where I live which is almost precisely on the bounday between inner and outer London day time temperatures reached the early thirties on several days but the nightime temperatures were in the teens to low twenties. It was only on two nights between the three anticipated record breaking days that the temperatures refused to drop. Even then the park land a tenminute walk from the more urban part I live in were much cooler – day time low thirties at best. It was the UHI effect at its best.

Please do not tell me what I should have observed as I am not prepared to lie on your or anyone else’s behalf. It was hot for three days but that is not unusual in the UK – anywhere.

Old Man Winter
Reply to  griff
August 30, 2022 11:05 am

Now I get it. You were talking about the Oxfordshire in Never-Never
Land as the REAL Oxford & Reading got down to 70 °F- ~10 °F
cooler!

UK-Weather Lass
August 30, 2022 12:58 am

During the UK’s recent record breaking ‘heatwave’, temperatures at Gatwick Airport overnight barely fell below the very late twenties and yet in a rural setting less than two miles away from the airport the early morning temperatures were in the mid teens. It was overnight heat retention that assisted the record temperatures where they occurred in the UK and not climate change or a heatwave.

It would be much more helpful to the public if meteorologists stuck to studying their subjects until they become really proficient in understanding them rather than trying to scare the **** out of people by makiing claims they cannot substantiate except by lying, cheating and changing definitions to suit their ugly causes.

griff
Reply to  UK-Weather Lass
August 30, 2022 1:30 am

Really? so widespread 40C plus temperatures were ‘just weather’?

Please note 5 stations recorded 40C, not just airports and that a further 28 across a wide area recorded temperatures beating the previous record set in 2019.

Alba
Reply to  griff
August 30, 2022 2:05 am

5 stations is not ‘widespread’. And for how many minutes in the day did these temperatures last?

Drake
Reply to  Alba
August 30, 2022 11:52 am

Again you are responding as if what he said were true, without any evidence.

I down voted you again.

Stop feeding the troll

Reply to  griff
August 30, 2022 5:18 am

Please note 5 stations recorded 40C, not just airports 

No, they didn’t

Show your data

Reply to  griff
August 30, 2022 7:29 am

More failures to properly account for UHI.

Bryan A
Reply to  griff
August 30, 2022 8:37 am

I’d like to see those data. Which 5 stations should I look at?

Reply to  griff
August 30, 2022 9:03 am

You didn’t the measure stations are situated on airports for differen reasons.

Uncle Mort
August 30, 2022 1:02 am

The media like to keep things really, really simple. I’m sure they would prefer a definition of one consecutive day.

Rod Evans
Reply to  Uncle Mort
August 30, 2022 1:12 am

Ha Ha! love it just ‘one consecutive’ day……

Drake
Reply to  Uncle Mort
August 30, 2022 11:55 am

I would like to see the number of heat waves in the US for each year in the 30s

Since 3 days is the new definition, use 3 days only, no more no less. So an old 5 day heat wave would be 3 heat waves.

This could get fun.

griff
August 30, 2022 1:28 am

‘Anecdotally, this year I can say it’s been a warm and pleasant summer here in northwestern Germany; it was certainly too dry. But I didn’t think it was “a scorcher” because so many evenings were too cool to sit outside without a jacket. Moreover, there was not a single night that I found it to be difficult to sleep. ‘

Well that certainly wasn’t the case in south and central UK…

Reply to  griff
August 30, 2022 7:31 am

London town too hot for you?
Move to Iceland or Greenland.

Bryan A
Reply to  ATheoK
August 30, 2022 8:40 am

Obviously all that cheap, affordable, reliable Renewable generation makes Griff’s electric bill to costly to run A/C at night and sleep comfortably

Reply to  griff
August 30, 2022 8:25 pm

I was in south and central England from July 15 to aug 1. Including the two 40c days in London, with lots of people out enjoying the sun in the parks.
The next day was 27c but much higher humidity and was much worse.
After that, everywhere we went from Dover to Cornwall up into Wales everyone said how wonderful the summer was and not a single complaint to be heard.

That’s reality Griff.

Yes, there was virtue signaling and moral panic, like the British Museum kicking everyone out at 3pm because of the heat, tossing hundreds of people out from 22c into 40c but that’s life right?

I could fly back over and we could go for a drive and you could then tell the people they need to pay more taxes to try to make it colder.
I’ll film all the interactions, and I’ll even take to you to the hospital as necessary.

roaddog
Reply to  Pat from kerbob
August 31, 2022 12:22 am

Pat your observations are not just appropriate but funny as well. If the Turd on Turtle Island ever stands down on the mandatory vax requirement to enter Canada, I’ll be able to return to Alberta and do face-to-face business with my customers, and be delighted to stand for the beer.

Alba
August 30, 2022 1:55 am

P. Gosselin: “because so many evenings were too cool to sit outside without a jacket. Moreover, there was not a single night that I found it to be difficult to sleep.”
P. Gosselin knows Germany much better than I do but I was in Germany from July 2 to July 20 this year. During that time there wasn’t a single evening when I felt that I needed a jacket. (The most northerly place I stayed in was Münster and the most southerly was Volkach, which is near to Würzburg.) For the last six nights of my holiday I stayed at St Goar on the Rhine. During that time the temperature was in the 30s for much of the day. To me it felt very uncomfortable. On the 15th it was 26 degrees at 8.30pm. On the 20th it was 26 degrees at 9pm. On the 19th I spent 5 hours cruising on the river so that I could escape the heat by staying in the air-conditioned restaurant area of the ship. And I most certainly found it difficult to sleep in the night-time temperatures. (My hotel did not have air-conditioning.) Maybe I reacted differently to Mr Gosselin as I come from Scotland and I’m not used to temperatures in the 30s but in future I will stay away from Germany in July.

Reply to  Alba
August 30, 2022 7:45 am

And all of the UK and Germany citizens that can’t wait to dash down to Spain for vacations, year round? All to escape those dreadful “hot” Southern England or German days?
They must fry? Not!

For a number of years, I lived in New Orleans.
Moving there from further north. Coworkers froze in their heavy winter coats while I rarely wore a suit jacket to work during winter. More than once, I heard shivering coworkers mutter “Damn Yankee” as I arrived for work. Of course, I don’t consider temperatures well above freezing to be cold.
People acclimate!

One person’s anecdotes about their ‘tolerance’ for cold/warm is irresponsible when discussing factual “heatwaves”. Personal anecdotes that appear to support government agencies changing definitions so they can increase the number of heatwaves and thereby support the AGW scam.

Reply to  ATheoK
August 30, 2022 9:12 am

As I was young, mid 70ies, it started to have cold and rainy summers in Germany and in Berlin where I lived, so I decided to move to sourhern France, Côte d’Azur.
The best decision I made in my live, I learned a lot about live, work, eating, drinking I still follow in my old age.

roaddog
Reply to  Krishna Gans
August 30, 2022 10:38 pm

The sacrifices one must make…

Reply to  Alba
August 30, 2022 9:07 am

Last it was rainy and “fresh”, you can’t generalise it.

Reply to  Krishna Gans
August 30, 2022 10:40 am

Last year….
probs typing on phone

August 30, 2022 2:40 am

Speaking of heat waves, I would like to draw attention to the serious situation in Southern China. I’m not sure that I completely agree with the media that it is the ‘worst heat wave of all time” but it is serious. The Yangtze River bed is exposed. Does anyone have a more scientific explanation as to what is causing this heat waves? Maybe the La Niña? The same question goes for Europe and the U.S. since it has been a hot summer probably not the hottest but still hot.

In fact where I live, temperatures are supposed to hit 100 degrees later even though it’s going to be September (see link below). Why is this happening? Is this a completely natural phenomenon? I miss the fall weather.

https://twitter.com/NWSSaltLakeCity/status/1564080794112471040?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Etweet

Zig Zag Wanderer
Reply to  Walter
August 30, 2022 5:54 am

Interestingly, the BBC described it as “the worst flooding for over a decade”, and mentioned the flooding of 2010 which was worse in extent and fatalities. Then they quoted people as stating that this had “never been seen before,” in the very same article!

It’s sometimes difficult to keep the narrative straight…

Edit: sorry, I got confused, this was Pakistan, not China.

Reply to  Zig Zag Wanderer
August 30, 2022 10:38 am

It was the worst flood, since the last worst flood

Reply to  Walter
August 30, 2022 9:13 am

And the Yangtze may be flooding next year. It’s all just weather. Last fall everyone here in Manitoba was in a panic due to the drought, and fear for farmers being able to survive was rampant. Last winter we were hit with tons of snow causing the sixth worse flooding of the Red River. Here are two articles from last Nov. and this May. What a difference! Of course the media all say whether it’s drought or flooding it’s all climate change.

https://www.cbc.ca/news/canada/manitoba/manitoba-drought-winter-snowfall-1.6239769
https://earthobservatory.nasa.gov/images/149822/red-river-flooding-is-worst-in-a-decade

Reply to  Walter
August 30, 2022 8:16 pm

Not sure why you get downvotes for asking questions
That’s what this site is supposed to be all about.

Likely has to do with going into 3rd straight year of La Niña in a cooling world, extremes always deepen in a cooler or cooling world.

Mac
August 30, 2022 3:34 am

Many retirees live in the Coachella Valley of Calif (Palm Springs to Indio and beyond) where the summer temperatures are over 40 C every day for months.
Do they define cold waves also?

Roger
August 30, 2022 4:24 am

The original German definition of a British summer, by King George II: three fine days and a thunderstorm.

Reply to  Roger
August 30, 2022 9:17 am

The other weather law of Germans about British weather is, Brits have red hair, because they are rusting because of the rain always coming down and the always present umbrella.

markl
August 30, 2022 7:45 am

If the narrative doesn’t fit the ideology then change it. When you control the media you control the narrative.

Terry
August 30, 2022 8:50 am

These folk are truly evil. Well, methinks, retribution is coming, and soon.

RevJay4
August 30, 2022 9:40 am

Just as I suspected, the folks who run the governments here and abroad are not as intelligent as everyone seems to think. There seems to be a lack of common sense rampant in the “leaders” of the major countries of the world.
Time for the folks to take back control and consign the morons to the loony bins.

Reply to  RevJay4
August 30, 2022 8:11 pm

Morons
See: Trudeau

Editor
August 30, 2022 10:00 am

Propaganda by altering definitions — time honored technique. Unruly demonstration = Insurrection. Warmer = Hotter. Above normal season = Extremely Active Season. Concerned Parents = Domestic Terrorists.

Reply to  Kip Hansen
August 30, 2022 10:40 am

Unruly demonstration by leftists = peaceful protest
Unruly demonstration by conservatives = insurrection

Reply to  Richard Greene
August 30, 2022 8:11 pm

Looting burning murder by leftists = peaceful protest
Unruly demonstration by conservatives = insurrection

August 30, 2022 10:23 am

New definition:
A majority of fat German people who were outdoors were sweating for three consecutive days

August 30, 2022 11:26 am

If WMO’s heatwave definition quoted here is correct, heatwaves could occur anytime throughout the year at any latitude. An unusually warm spell in January in Switzerland or a late freeze in Autumn in Norway could be called a heatwave.

August 30, 2022 3:40 pm

I wonder what Germany’s DWD Weather Service would make of the world’s longest heatwave which was recorded in outback Western Australia in 1923/24. Marble Bar, in between Exmouth and Broome in Western Australia, saw temperatures of over 100 degrees Fahrenheit (37.7°C) for 160 consecutive days.

August 30, 2022 3:58 pm
Bob
August 30, 2022 7:49 pm

28 Celsius is 82 Fahrenheit if I’m not mistaken. How on earth can anyone consider 82F hot. That is pure bs. I don’t have air conditioning, I do have fans. In the past I struggled with the heat. Since I retired (I worked in an air conditioned environment) I decided to acclimate myself to the heat. I’ve been sitting outside the last few summers, in the shade of course. I have been successful, now I find 80F with a breeze just fine sometimes chilly. 90F pleasant with a good breeze and 100F bearable with a good breeze. High temperatures are relative especially if you are respectful of them.

August 30, 2022 8:05 pm

Here in calgary we now get a heat warning when it’s into the high 20’s Celsius
Which is ridiculous as we only get 6-8 weeks of summer.
It’s been beautiful recently, nice warm nights, allows me to sit outside as I contemplate the end of the world from my porch.
Every day I walk around watching the people trying to survive by crowding into patios to rehydrate as best as possible. Business is brisk.

Of course, Sunshine ski resort was opened for July 1 canada day weekend because there was lots of snow that late first time ever.
And now 7 bears killed recently, because it’s such a cold year the mountain berry crop sucks so they are coming low and getting hit by cars and trains.
Of course the media says it’s because climate change, of course.
No one told them that colder and snowier is just weather.

roaddog
Reply to  Pat from kerbob
August 30, 2022 10:45 pm

Vail ski resort in Colorado, as well, had the longest ski season in its history in 2022.

“…contemplate the end of the world from my porch.” is the nicest turn of phrase I’ve read in many months. Brilliant.

roaddog
August 30, 2022 10:15 pm

Any faction that needs redefine the meaning of words has defacto lost the argument.

roaddog
Reply to  roaddog
August 30, 2022 10:16 pm

And FYI, the US has been in the throes of a recession since January of 2022. Ignore all Progressive arguments to the contrary.

roaddog
August 30, 2022 10:56 pm

Let me see if I’ve got this straight. Heat waves are specific to a geography, ie. if it is so many degrees hotter for a given number of days, in the spot where I’ve elected to dwell, then that is a “heat wave” which is claimed to objectively demonstrate “man made global warming.” Remarkably, my local “heat wave” may occur at temperatures demonstrably lower than the (what’s the opposite of heat wave?) measured drop in temperatures (so many degrees cooler for a given number of days) at another point on the planet.

“Existential threat” climate change, however, is documented by recording and calculating a mystical annual temperature change across the entire planet.

So heat waves are indicative of “climate change” but geographically specific, and “climate change” is non-geographically specific, but rather across-the-planet homogenized, incredibly influenced by the selection/location of measuring points, and indicative of “climate change”?

I sense a massive double-standard.

observa
August 31, 2022 2:04 am

You can’t beat age and experience like Horst-
Tough choices for Germany as coal power stations return to keep people warm this winter (msn.com)
It’s called winter Gretaheads. LOL.

Geoff Sherrington
August 31, 2022 3:38 am

For 8 of Australia’s bigger cities, some with daily temperature max and mins going back before 1870, I calculated the hottest heat wave each year The heat wave was taken to be the highest average of consecutive days 1, 3, 5, and 10 days duration, each year. I then sorted all years to get the Top 40 hottest waves as well as the full set showing each year. All results are of raw data for maximum daily temperature from the official BOM web site.
For illustration, I have chosen to display here the 5-day set for 8 stations, the Top 40 hottest.
There is no strong signal shown in the full set of these graphs, all 128 of them including the adjusted AGORN-SAT series from the BOM, to indicate that here, heatwaves have become hotter, longer or more frequent.
There are several alarmist papers that claim hotter, longer and more often, but they do not have the simple data purity of my exercise. They often start at more recent dates, the often use adjusted data and importantly for this topic, they rely upon special definitions of “heatwave”.
If there is no perceptible signal in the simple raw data, why do people torture it to make dramatic headlines.
Readers of WUWT should do this exercise for your own region or city. It is quite powerful evidence of the reality of what is happening. It is very easy on Excel, no programming skill or macros needed.
Geoff S
http://www.geoffstuff.com/eightbyfive.xlsx

August 31, 2022 3:03 pm

I suppose it’s only a matter of time (probably next summer) before each “heat wave” gets its own name, like hurricanes and babies.