The emergence of heat and humidity too severe for human tolerance
science.orgI'm on mobile right now and don't know the exact formula but today in the Houston area we are going to be above 36c, 80% humidity, 7mph winds and almost no cloud cover.
Again, I don't know the exact formula but that sounds pretty damn close to the conditions I saw referenced in the article and there's about 2000 people hanging out outside for a swim meet all day today.
Granted, we do have ample shade that most adults are staying under but many of the kids are actively running around playing.
And the current conditions are still a good bit lower than what we will typically see at the peak of summer towards the end of July/early August (hitting 100f-105f is not uncommon and likely going to happen this early week).
Meant to post this as a reply to a child comment but it's too hot for me to figure out if I'm able to edit the post or not.
No. I live in Texas and I am fine walking several miles in 105 degree heat. And I'm obese.
Wet bulb temperature is not the same as temperature. At certain temperatures and humidities, sweating cannot cool the body. Texas is not reaching those conditions currently.