Abnormal Heatwaves And The Wet Bulb Effect Are Causing Specialists To Speak Up About How Hazardous Such Extremes Can Be To Humans
What the Pacific Northwest area of North America experienced just a few days ago raised quite a few concerns and ‘climate change’ might have echoed in quite a few people’s minds. Parts of the US and Canada were scorching in a heatwave that has topped all the records so far. Rob Carlmark, meteorologist in California for ABC 10, shared a concerning post on his Facebook page ‘More than Sunshine.’ And it is all about how horrifying and unusual the heatwave is. And he is raising awareness about this phenomenon that will probably re-occur again.
This frying heat has also prompted another climate expert, Matthew Lewis, to speak up on his Twitter account about ‘wet bulb’ temperatures and how dangerous they are. And some people online are admitting to being unaware of this term and how concerning and alarming it actually is.
The latest heatwave in the Pacific Northwest of the US and Canada sparked a few climate experts to speak up about the concerning temperatures
Image credits: Rob Carlmark
In his post, Rob Carlmark stated that using the word ’horrifying’ is the most accurate when describing what has been happening in this time in history, which no one really wants to repeat itself. He starts by explaining how different regions have their respective climate that has been meticulously observed by humans over a period of time, including the vegetation, geology and other geographical matters.
Rob Carlmark, meteorologist in California, stated that this heatwave is nothing less than ‘horrifying’ and explained why
Carl shared that such anomalies like temperatures reaching highs of 110 in Portland and Seattle shouldn’t really occur. He also highlighted how unbelievable it was for weather experts to see such numbers: ‘When the computer models spit these numbers out last week, a lot of meteorologists dismissed them right away as a computer model problem.’
The meteorologist points out that ‘millions of people are in the middle of a life-changing event’ which could happen again as, unfortunately, people are currently going through it. He shared that air conditioning, although it is a solution for keeping cool in such extreme heat, will not help to change the environment.
Image credits: Rob Carlmark
Matthew Lewis, who is a clean energy and climate tech/policy veteran, following the recent heatwave, dropped another term to add to your vocabulary: ‘wet bulb’ temperature. In his initial post on Twitter with over 20k likes, he opened a discussion about human survivability and habitability. The thread that he shared is a basic one to understand what the ‘wet bulb’ effect is and what is so scary about it.
The unprecedented heatwave got another climate change professional to warn everyone about the ‘wet bulb’ temperature and what it does to humans
Image credits: mateosfo
Image credits: mateosfo
He explained how the ‘wet bulb’ example is used to describe what happens to the human body as well
Image credits: mateosfo
Turns out that ‘wet bulb’ temperature is actually the temperature+relative humidity at which water does not evaporate off a ‘wet’ thermometer bulb. Matthew explains that the air has so much humidity that evaporation does not cool the bulb anymore, making it get even hotter. This explains why humans feel that humid heat feels worse and it is not as bearable as dry heat even though the latter would have a numerically higher temperature.
Image credits: mateosfo
Apparently, if the heat is dry, humans can survive quite high temperatures
Image credits: mateosfo
Image credits: mateosfo
The climate expert stated that dry air has more capacity to absorb moisture, which in this case is sweat, which the human body uses to cool down when it’s too hot. Of course, 120 and up in a dry heat means potential death from hyperthermia for people in at-risk groups. What is more dangerous is humid air, where the body’s sweat can no longer evaporate, therefore causing the body to overheat, just like the ‘wet’ thermometer bulb. The ‘wet bulb’ condition can be fatal to humans in temperatures as low as the mid-80s.
Image credits: mateosfo
Matthew also explained that ‘wet bulb’ temperatures were extremely rare in the past and how important it is for the weather forecasters to start announcing the Human Heat Index
Image credits: mateosfo
Image credits: mateosfo
What Matthew called out is that it would be useful to be informed about the wet bulb temperature or Human Heat Index and make it public knowledge during weather forecasts as ‘wet bulb’ temperatures were quite rare in the last 40 years, but now they seem to be multiplying in different locations, making it more dangerous for people to live in such weather conditions.
Image credits: mateosfo
And the scariest thing is that there is a chance that some people will have to move from their current locations
Image credits: mateosfo
Image credits: mateosfo
His guess is that many people might have to move and try to adapt, but it might be hard. Matthew says that if we take action now, there is a chance to save these sorts of places for future generations. But are we really taking action?
Image credits: mateosfo
And this is what Twitter users were commenting about the ‘wet bulb’ temperatures and the unbearable humidity
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Share on FacebookWhat bugs me is that the effects of burning fossil fuels has been known since 1977, more than enough time to do something about it. Monty Python´s "Eric the Viking" was supposed to be funny, not a prophecy https://www.youtube.com/watch?v=rY-HOYTz-rs&ab_channel=SoCalClockDoc
Even longer. As soon as the Industrial Revolution started they were warned more than once about the horrible effects for the future. But humans can and will never be able to learn to go for the long-term-gain, which kinda means 'well, it is okay for now. The next gen can fix it' . Every generation has been fighting so f*****g hard to change things around. But as long as the big companies, political parties, and anyone that .. sorry for saying it like this... 'matters' who can truly cause a change WONT DO IT! we are f****d. We really and truly are f****d. But at least we get to die in our 'home made' apocolips! so.. thats a thing
Load More Replies...It's all so scary, how the world might become uninhabitable soon, and nothing is done. What can we do, as regular people? It's not like turning off the lights for a minute is a super big change. Sure, we realize it's terrible, but I haven't found anything better to do than panic. Genuine question, what can we do?
Vote. Hold your political parties accountable. Join fridays for future. Learn to live with less. Don’t eat meat. Think globally, act locally. Inform your peers. Form climate saver groups. Resist plastic. PRAY.
Load More Replies...Stop living in deserts, taking every last drop of fresh water from underground, and running A/C to keep your house like a fridge. No other animal forces their environment to work for them, and every human society in the past that has tried it, has pushed nature over the edge and collapsed. How long before we've gone too far. Crypto currency needs to be banned too; often used for crime, and the massive server farms drink power and generate heat on a Las Vegas level
I don't think that Neil was thinking about Egypt or other deserts but rather western societies building and creating cities in deserts like Las Vegas but with a western style. There was a post about architecture and a picture of a neighborhood in a highly warm country like Egypt and the comments were "EW, there is no lawn and no spaces between buildings...". Actually those countries do that to create shadow and air flow since forever. Unlike westerners who create cities in the desert but still want their precious lawns and outdoor space and overuse ACs. Meanwhile moucharabieh/machrabiyyah (a kind of wooden lattice) exists since ancient times and they are highly effective green AC's, often connected to a basin of water, in a patio to have shadow and build effectively through houses to create a flow of fresh air. No bay windows in old arabian buildings, they were actually working with their environnement and not against it. I visited a lot of those buildings and they are very fresh. moucharabi...c820b4.jpg
Load More Replies...All my life, "wet bulb" referred to one half of a sling hygrometer, the best instrument for measuring relative humidity. Could we please get some more numbers? Maybe a chart of the danger zone for temperature and humidity?
Here you go: https://www.omnicalculator.com/physics/wet-bulb#what-is-the-wet-bulb-temperature "If the wet-bulb temperature exceeds 35 °C (95 °F) for an extended period of time then people in the surrounding area are at risk of hyperthermia." Insert numbers for temp and humidity into the calculator to see when it reaches that wet bulb temp.
Load More Replies...so like what am i supposed to do? vote in the right people, have them fail and continue to panic? because that's what people have been doing for the last 20 years. it's not changing:/
Good post. But you guys really need to start to use Celsius so the rest of the world doesnt need a calculator reading this.
Agreed. Live in the US but think metric, use C* b/c grew up on Canadian border and am a science nerd. I have to "translate" way too often. Good site is metric-conversions dot org.
Load More Replies...I have had heat exhaustion many times. Symptoms of heat exhaustion: _Stage 1: Heat Cramps Heavy Sweating Fatigue Thirst Muscle Cramps _Stage 2: Heavy Exhaustion Heavy Sweating Faintness Low Blood Pressure Nausea Low Fever Headache Dark Urine _What to do? IF DIZZY AND PASSING OUT, DIAL 911 & CALL FOR AMBULANCE. Get out of the full sun. Drag the victim if necessary to a cooler place. Take off tight clothes, open up shirt collar & sleeves, open up pants or take off pants. Put cool water on victim. Blow the body with a portable fan if available. Drink cool fluids. Do not give beverages with caffeine. Apply cool water to the skin. Put victim under cool water in a shower if available. Pack ice packs if they are available around the head, groin, & armpits. Rest with legs elevated above heart level. _The next stage is heatstroke. This is serious. Untreated heat exhaustion can progress to heatstroke or a temperature of 103°F or higher. Heatstroke can cause permanent stroke or death.
Lytton has always been pretty hot in summer, if not quite this hot. Before the Coquihalla highway was built, travelling from Calgary to Vancouver meant passing through the Frazer canyon on the TransCanada, going through Lytton among other places. It was always brutally hot.
I’ve lived in humid areas and dry areas in the US, and all I can say is I’d rather be in 120 degree* heat in the Mojave than 85 degree heat* anywhere on the East Coast. (*Fahrenheit, btw)
Of course. We, however, will not survive all. The next wars will be about drinkable water, breathable air and a safe space to inhabit. We will return to medieval forms of society, ordo, not democracy. This frightens me most.
Load More Replies...Then the humans need to stop spraying all of us with toxins sprayed from above that is causing these abnormalities
Out of curiosity, what do any of you think Chemtrails are doing to our entire environment? If Geo-engineering isn't a polite way of saying that they are spraying toxic chemicals above us as to control the weather, everywhere. China plus one other country shoot at the modified 787's while they are trying to spray
Wet bulb has always been a thing to be concerned about. Even in the United States. Just because many did not know about it. Saying we have never had to worry about it just helps cast doubt on everything else you are communicating.
Well I don't deny global warming caused my carbon emission is a thing. However, I've lived with temperatures of 90+ in 80% humidity all my life. I ain't dead. That said, I can see how people not used to it can have problems. It's just not pleasant for long periods of the day. Most days you can fry an egg off the boulders. Badly ventilated rooms can feel like a sauna.
It's hard to imagine that this is the first time many people have learned about humidity and the heat index. It's been included in the daily weather on broadcast tv news in the Dallas, TX area for as long as I can remember. I've never heard it explained with the term Wet-Bulb before, though.
I love the way that we ignore all the facts, like geology that tells us that the earth has seen tempreatures like this before in these places and that we know we are coming out of an ice age. Also that we keep refering to historical records. We have been measuring weather for an extremely small fraction of time. It is like measuring a frieght train as it builds up speed. It takes 10 minutes to reach 100mph but we have only measured the first 1 second and then panic when after 1 minute it is a lot more than we have measured before.
If this is true, could you reference some credible sources? I'm not saying it's wrong, but it seems unlikely, so you really need to prove it for anyone to believe it
Load More Replies...First personally heard about this in 1982 in a science mag. Heard about it in the 1970s when Carter put solar panels on the White House. And still people are being di*kheads. ARGH!
It should be common knowledge in a city like Vegas that everything there will be gone within the next 20 years, since the whole place will be uninhabitable by then. But they keep on with their business as usual, as if they intended to die of thirst right there at the game table, trying to win the jackpot one last time.
I was interested by the comment above from @dj_soubise stating that the heatwave in the PNW, while terrible, didn't necessarily have a very high wet-bulb temperature. So, I found a record of Portland, OR's weather from 28 Jun 2021(https://www.wunderground.com/history/daily/us/or/portland/KPDX/date/2021-6-28), a week ago, when they had their high temp of 115F. According to the data there, it was very dry as the temps climbed higher, and when it was 115F, the relative humidity was 13%. I found a wet-bulb temperature calculator (https://www.omnicalculator.com/physics/wet-bulb) which shows that an air temp of 115F with RH of 13% = a wet-bulb temperature of 74.57F. The phenomenon described here where humans cannot regulate body temp through sweating happens at wet bulb temps of 95F and above. That's not to say that it wasn't brutally hot, and I definitely don't mean to downplay the effects (which included over 90 deaths that I'm aware of).
It was very hot here :/ not fun considering I went to Florida a month or two ago and it was cooler. The reason I love living here is because of the lack of extremes. We never get really cold or hot but uh... that changed
Seriously? Show some maturity, or show yourself to the door.
Load More Replies...Hello miss miss, you have won my annual Dumbass Award! Don't be honored though, there are over 100,000 of them awarded each year. You are one of many recipients.
Load More Replies...What bugs me is that the effects of burning fossil fuels has been known since 1977, more than enough time to do something about it. Monty Python´s "Eric the Viking" was supposed to be funny, not a prophecy https://www.youtube.com/watch?v=rY-HOYTz-rs&ab_channel=SoCalClockDoc
Even longer. As soon as the Industrial Revolution started they were warned more than once about the horrible effects for the future. But humans can and will never be able to learn to go for the long-term-gain, which kinda means 'well, it is okay for now. The next gen can fix it' . Every generation has been fighting so f*****g hard to change things around. But as long as the big companies, political parties, and anyone that .. sorry for saying it like this... 'matters' who can truly cause a change WONT DO IT! we are f****d. We really and truly are f****d. But at least we get to die in our 'home made' apocolips! so.. thats a thing
Load More Replies...It's all so scary, how the world might become uninhabitable soon, and nothing is done. What can we do, as regular people? It's not like turning off the lights for a minute is a super big change. Sure, we realize it's terrible, but I haven't found anything better to do than panic. Genuine question, what can we do?
Vote. Hold your political parties accountable. Join fridays for future. Learn to live with less. Don’t eat meat. Think globally, act locally. Inform your peers. Form climate saver groups. Resist plastic. PRAY.
Load More Replies...Stop living in deserts, taking every last drop of fresh water from underground, and running A/C to keep your house like a fridge. No other animal forces their environment to work for them, and every human society in the past that has tried it, has pushed nature over the edge and collapsed. How long before we've gone too far. Crypto currency needs to be banned too; often used for crime, and the massive server farms drink power and generate heat on a Las Vegas level
I don't think that Neil was thinking about Egypt or other deserts but rather western societies building and creating cities in deserts like Las Vegas but with a western style. There was a post about architecture and a picture of a neighborhood in a highly warm country like Egypt and the comments were "EW, there is no lawn and no spaces between buildings...". Actually those countries do that to create shadow and air flow since forever. Unlike westerners who create cities in the desert but still want their precious lawns and outdoor space and overuse ACs. Meanwhile moucharabieh/machrabiyyah (a kind of wooden lattice) exists since ancient times and they are highly effective green AC's, often connected to a basin of water, in a patio to have shadow and build effectively through houses to create a flow of fresh air. No bay windows in old arabian buildings, they were actually working with their environnement and not against it. I visited a lot of those buildings and they are very fresh. moucharabi...c820b4.jpg
Load More Replies...All my life, "wet bulb" referred to one half of a sling hygrometer, the best instrument for measuring relative humidity. Could we please get some more numbers? Maybe a chart of the danger zone for temperature and humidity?
Here you go: https://www.omnicalculator.com/physics/wet-bulb#what-is-the-wet-bulb-temperature "If the wet-bulb temperature exceeds 35 °C (95 °F) for an extended period of time then people in the surrounding area are at risk of hyperthermia." Insert numbers for temp and humidity into the calculator to see when it reaches that wet bulb temp.
Load More Replies...so like what am i supposed to do? vote in the right people, have them fail and continue to panic? because that's what people have been doing for the last 20 years. it's not changing:/
Good post. But you guys really need to start to use Celsius so the rest of the world doesnt need a calculator reading this.
Agreed. Live in the US but think metric, use C* b/c grew up on Canadian border and am a science nerd. I have to "translate" way too often. Good site is metric-conversions dot org.
Load More Replies...I have had heat exhaustion many times. Symptoms of heat exhaustion: _Stage 1: Heat Cramps Heavy Sweating Fatigue Thirst Muscle Cramps _Stage 2: Heavy Exhaustion Heavy Sweating Faintness Low Blood Pressure Nausea Low Fever Headache Dark Urine _What to do? IF DIZZY AND PASSING OUT, DIAL 911 & CALL FOR AMBULANCE. Get out of the full sun. Drag the victim if necessary to a cooler place. Take off tight clothes, open up shirt collar & sleeves, open up pants or take off pants. Put cool water on victim. Blow the body with a portable fan if available. Drink cool fluids. Do not give beverages with caffeine. Apply cool water to the skin. Put victim under cool water in a shower if available. Pack ice packs if they are available around the head, groin, & armpits. Rest with legs elevated above heart level. _The next stage is heatstroke. This is serious. Untreated heat exhaustion can progress to heatstroke or a temperature of 103°F or higher. Heatstroke can cause permanent stroke or death.
Lytton has always been pretty hot in summer, if not quite this hot. Before the Coquihalla highway was built, travelling from Calgary to Vancouver meant passing through the Frazer canyon on the TransCanada, going through Lytton among other places. It was always brutally hot.
I’ve lived in humid areas and dry areas in the US, and all I can say is I’d rather be in 120 degree* heat in the Mojave than 85 degree heat* anywhere on the East Coast. (*Fahrenheit, btw)
Of course. We, however, will not survive all. The next wars will be about drinkable water, breathable air and a safe space to inhabit. We will return to medieval forms of society, ordo, not democracy. This frightens me most.
Load More Replies...Then the humans need to stop spraying all of us with toxins sprayed from above that is causing these abnormalities
Out of curiosity, what do any of you think Chemtrails are doing to our entire environment? If Geo-engineering isn't a polite way of saying that they are spraying toxic chemicals above us as to control the weather, everywhere. China plus one other country shoot at the modified 787's while they are trying to spray
Wet bulb has always been a thing to be concerned about. Even in the United States. Just because many did not know about it. Saying we have never had to worry about it just helps cast doubt on everything else you are communicating.
Well I don't deny global warming caused my carbon emission is a thing. However, I've lived with temperatures of 90+ in 80% humidity all my life. I ain't dead. That said, I can see how people not used to it can have problems. It's just not pleasant for long periods of the day. Most days you can fry an egg off the boulders. Badly ventilated rooms can feel like a sauna.
It's hard to imagine that this is the first time many people have learned about humidity and the heat index. It's been included in the daily weather on broadcast tv news in the Dallas, TX area for as long as I can remember. I've never heard it explained with the term Wet-Bulb before, though.
I love the way that we ignore all the facts, like geology that tells us that the earth has seen tempreatures like this before in these places and that we know we are coming out of an ice age. Also that we keep refering to historical records. We have been measuring weather for an extremely small fraction of time. It is like measuring a frieght train as it builds up speed. It takes 10 minutes to reach 100mph but we have only measured the first 1 second and then panic when after 1 minute it is a lot more than we have measured before.
If this is true, could you reference some credible sources? I'm not saying it's wrong, but it seems unlikely, so you really need to prove it for anyone to believe it
Load More Replies...First personally heard about this in 1982 in a science mag. Heard about it in the 1970s when Carter put solar panels on the White House. And still people are being di*kheads. ARGH!
It should be common knowledge in a city like Vegas that everything there will be gone within the next 20 years, since the whole place will be uninhabitable by then. But they keep on with their business as usual, as if they intended to die of thirst right there at the game table, trying to win the jackpot one last time.
I was interested by the comment above from @dj_soubise stating that the heatwave in the PNW, while terrible, didn't necessarily have a very high wet-bulb temperature. So, I found a record of Portland, OR's weather from 28 Jun 2021(https://www.wunderground.com/history/daily/us/or/portland/KPDX/date/2021-6-28), a week ago, when they had their high temp of 115F. According to the data there, it was very dry as the temps climbed higher, and when it was 115F, the relative humidity was 13%. I found a wet-bulb temperature calculator (https://www.omnicalculator.com/physics/wet-bulb) which shows that an air temp of 115F with RH of 13% = a wet-bulb temperature of 74.57F. The phenomenon described here where humans cannot regulate body temp through sweating happens at wet bulb temps of 95F and above. That's not to say that it wasn't brutally hot, and I definitely don't mean to downplay the effects (which included over 90 deaths that I'm aware of).
It was very hot here :/ not fun considering I went to Florida a month or two ago and it was cooler. The reason I love living here is because of the lack of extremes. We never get really cold or hot but uh... that changed
Seriously? Show some maturity, or show yourself to the door.
Load More Replies...Hello miss miss, you have won my annual Dumbass Award! Don't be honored though, there are over 100,000 of them awarded each year. You are one of many recipients.
Load More Replies...
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