[dohboi]

(And sometimes, not even then!)

[Peak_Yeast]

I also knew about wbt, but I liked the thread - at least until people starting critizing back and forth. Annecdotes and scientific knowledge is a fine combination for discussions and clarifications.

So thanks for this thread, anyhow.

[SeaGypsy]

Newf,

I will have a look, right now I'm contending with my filipina wife about buying useless real estate in the Philippines. We live in the same house, on different planets. Only quantum mechanics keeping me 'sane' about now. (I have already experienced very near WBT 35, probably 32-33. It is frikken scary. Was in her home town- more so for her family. I knew what was happening. Said nothing, just haven't been back in 4 years. )

[dohboi]

WBT = ?

[vox_mundi]

WBT = ?

wetbulb-t-death-here-now-more-to-come-t71512.html?hilit=Wet%20bulb%20temperature#p1254700

Ring a bell?

[dohboi]

D'oh!!!

[SeaGypsy]

Lol! WBT, I think you were my first guru on it Doh! I recall having trouble grokking it like most do, then a couple of years later sitting with damp rags & fan in my face, kids in pool being drenched constantly, almost no evaporation at peak about 34c, most of the late may day over 32c. There was about 5 hours where the locals were saying this is as bad as it has ever been, but none could remember a day like it. Just 2 degrees warmer & the 90% without aircon would have died like flies. The roads ceased to function as people fled to large centers in search of cool shopping centers. Banks ran out of money because the cash transport couldn't move. 3 days later everyone forgot about it as the monsoon broke. I didn't forget.

[Keith_McClary]

WBT = ?

You measure it with a psychrometer.

[Shaved Monkey]

Different formulas for measuring humidity to temp
The news weather usually say is "x" C but feels like "y" C
We get few weeks a year when its low 30s C and high 80s% humidity its a good time to hide in the shade and drink cool drinks under the fan.
I dont have air con just ceiling fans and a well designed house to catch breezes with good cross flow, no insulation so it doesnt catch heat,white coloured tin roof ,high ceilings and a very good "Hawaiian" climate
Cool breezes in the Summer is the norm
(for now)

Apparent temp

WBGT


http://www.bom.gov.au/info/thermal_stress/#wbgt

[jedrider]

How Does a Heat Wave Affect the Human Body?
[url='Scientific American']http://www.scientificamerican.com/article/heat-wave-health/[/url]

I keep hearing that when night-time temperatures don't come down sufficiently, that increases the risk of morbidity/mortality during a heat wave, but I didn't find any detailed information to post a link and I would be curious of what's the physiological mechanism is of the accumulated 'exhaustion'.

On my trip the beaches in Guatemala only got really uncomfortable for a few hours during the day, but I noticed that in my airport stay in Panama that the night-time temperatures stay rather elevated. (Note, this is supposed to be the cool season, and I notice the same pattern as up north, that cold days punctuated by some warm days has turned into warm days punctuated by some colder days. This says that minimums and maximums are not as important as a count of number of days temperatures stay elevated.) I used to love warm weather, but age makes one adverse to extremes, especially if we are not acclimated to it.

[SeaGypsy]

Neither is important. Wet bulb temps are important because they indicate the efficiency of our body's cooling system. WBT 35+ is deadly. 45c day, 30+c night- does not matter unless the relative humidity prevents heat loss through sweat & evaporation.

[dohboi]

jed wrote: "I keep hearing that when night-time temperatures don't come down sufficiently, that increases the risk of morbidity/mortality during a heat wave"

I've heard that, too. But I also can't find a source for it from my few minutes of searching. Can anyone else? Is this another urban (heat island) legend?

[Shaved Monkey]

HEAT STRESS is Australia's number one natural killer, accounting for the deaths of more people than floods, cyclones, bushfires and storms combined.
It's a situation which is only likely to become worse as the climate changes, researchers warn.
Macquarie University risk scientist Lucinda Coates and colleagues analysed records dating back more than 160 years and found that "since 1900, extreme heat events have been responsible for more deaths in Australia than the combined total of deaths from all other natural hazards (barring disease epidemics)."
Most deaths occurred over the summer months, with the most lethal day of the year falling on January 27.



http://www.abc.net.au/environment/artic ... 081144.htm

[SeaGypsy]

jed wrote: "I keep hearing that when night-time temperatures don't come down sufficiently, that increases the risk of morbidity/mortality during a heat wave"

I've heard that, too. But I also can't find a source for it from my few minutes of searching. Can anyone else? Is this another urban (heat island) legend?

WBT 35+ is heat stress on steroids, will kill most people in under 5 hours. 45+ in the desert with a 32 minimum is no where near as much of a problem- drink water, splash yourself, wear damp clothes & stay shaded & in a breeze or a fan draft- not going to kill any healthy people.

[dohboi]

https://www.skepticalscience.com/white- ... -risk.html

Climate Change Poses Urgent Health Risk

Climate change is a major threat to human health, with extreme heat likely to kill 27,000 Americans annually by 2100, according to a report released Monday ...

The report, by the U.S. Global Change Research Program, outlines numerous ways global warming could devastate public health in the U.S. this century.

Global warming will lead to heat waves so extreme that in the hottest times of the year, it will be “physiologically impossible” for people who work outdoors to do their jobs, John Holdren, a science advisor to the Obama administration, said during a news conference about the report.

“People who work outdoors will be unable to control their body temperature and will die,” he said.

“This is a really, really big deal.”

I still think effects on ag will kill far more people, but it's all connected.

[onlooker]

I think AG will be creating havoc before wet bulb temps do. A double whammy.

[Cog]

And it will still be less than the number of workers who die in car accidents.

[KaiserJeep]

It is not uncommon for manual laborers to already die in hot Summer weather, along with senior citizens, sick people, and a certain number of seemingly perfectly healthy young people.

When I was a kid growing up in the MidWest before A/C was common, people dealt with such heat waves and simultaneous high humidity (aka a perfectly normal MidWestern Summer) by living in their cellars if they were fortunate enough to have such, or sleeping in the dirt crawlspace if they had no cellar. Then some silly contractor got the idea that he could simply dig a hole, throw in some rebar, and pour a concrete slab that he could construct a house upon. So today we have a huge inventory of cheaply constructed homes that will be uninhabitable without cheap grid power for A/C. Is that news to you, or have you even bothered to think about such things?

What is the point of all these silly alarmist posts? You are breeding contempt for AGW crackpots such as yourself by posting nonsense without analysis or critical review.

[Lore]

There will be a greater panic and death as a result of human displacement in the coming decades due to climate change.

[dohboi]

I tend to agree, Lore.

But I also think the article, far from being 'alarmist,' understates the scope and depth and timing of the threat.