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this post was submitted on 03 Jul 2023
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Lots of people here not understanding wet bulb vs dry bulb. Wet bulb 95°F/35°C is considered the theoretical human survivability limit and is equivalent to a heat index of 160°F/71°C due to high humidity not allowing your sweat to evaporate.
In other words, it's very, very hot, bordering on unsurvivable.
While that is true, this map is referring to Wet Bulb Globe Temperature. The true wet bulb temperature is taken in the shade, while the WBGT is taken in full sun. These wet bulb temperatures aren't great, but they aren't yet approaching 95° which would be absolutely catastrophic.
Hey, you piqued my curiosity so I went and found the source ko-fi wet bulb temp article, and someone commented the same thing there! So maybe it was you or maybe you went to the source and learned and let everyone here know about it. Either way, thanks for the knowledge and correction to this!