So tomorrow, the NWS forecasts wet bulb temperatures in parts of the US are so high, that people will die if they aren't in air-conditioning. You can't really do anything in wet bulb temps above 90F, and you die in wet bulb temps above 95F.

And it's only June!

Source: https://digital.mdl.nws.noaa.gov/

(Edited to add source)

@pearlbear so does that mean that even in a wet Tshirt in front of a fan you wouldn't feel the effect of wind chill?

@pixelpusher220 @pearlbear

Correct. "Wind chill" is just the wind (cooler than body temp) blowing away the little layer of near-body-temp air surrounding your body, so you lose heat faster. If the air around you is at or above body temp, wind has no cooling effect (and can actually accelerate overheating — ice cream melts faster in a breeze). And wet t-shirt depends on evaporation. Wet bulb 95° means 95° AND 100% humidity (or equivalent combo), so it's already adjusted for evaporative cooling.

@tunguska @pearlbear thought it might be something like that. Appreciate the thorough explanation

Will have to stick with the original use for wet tshirts haha

@pixelpusher220

I've heard of ppl w/ dysautonomia using alcohol sprays for temperature regulation under high heat conditions. Not much of a solution for this situation, but if someone were desperate... Of course the alcohol would get used up pretty quickly.