4 ms·
New scorching heat wave building across Western U.S.
- fy20 5y agohttps://archive.is/oTSZb https://archive.is/oTSZb
- bruce343434 5y agoSome temperatures mentioned in the article: 100°F = 37.78°C (various mentions. This is body temperature so you can not loose heat effectively in this air temperature.) 110°F = 43.33°C ("many valley communities" low prediction) 115°F = 46.11°C ("many valley communities" high prediction) 117°F = 47.22°C (Nevada weekend peak prediction) 130°F = 54.44°C (death valley prediction, meat can be cooked sous-vide at this point) Usual summer temperatures in northern/western Europe: 30°C = 86°F (heatwave) 25°C = 77°F (hot weather) 20°C = 68°F (nice summer weather)
- peytn 5y ago> 100°F = 37.78°C (various mentions. This is body temperature so you can not loose heat effectively in this air temperature.) I think this isn’t quite true due to water’s large enthalpy of vaporization. In dry air the limits are gonna be much higher. Somebody’s probably done the math.
- bruce343434 5y agofair point, I suppose humidity and clothing is also a factor.
- Engineering-MD 5y agoVary much so. With dry air, and sufficient water, humans can survive very high temperatures (including 100C! [0]). However in 100% humidity (where sweating doesn’t work), 32C is the maximum we can survive [1]. [0] https://publicdomainreview.org/collection/experiments-and-observations-in-a-heated-room-1774 https://publicdomainreview.org/collection/experiments-and-ob... [1] https://en.m.wikipedia.org/wiki/Wet-bulb_temperature https://en.m.wikipedia.org/wiki/Wet-bulb_temperature
- deleted 5y ago[deleted]