"wet bulb" is a method of measuring temperature, you can use it in any conditions. a high wet-bulb temperature is dangerous, sure, and can be caused by high humidity https://en.m.wikipedia.org/wiki/Wet-bulb_temperature
For the dankest of all memes
"wet bulb" is a method of measuring temperature, you can use it in any conditions. a high wet-bulb temperature is dangerous, sure, and can be caused by high humidity https://en.m.wikipedia.org/wiki/Wet-bulb_temperature