Multiple southern states and a few midwestern states are at “extreme threat” levels of “wet bulb temperature”.

    • Madison_rogue
      link
      fedilink
      81 year ago

      Yes, wet bulb index takes into account the relative humidity to give a realized temperature that takes into account your body can’t shed heat through sweat.

      Wet bulb temperature

    • HeartyBeast
      link
      fedilink
      41 year ago

      Basically you put two old-style thermometers next to each other. One has a conventional ‘dry’ bulb. The other has damp gauze or something similar wrapped around the bulb.

      In low humidity conditions, the wet bulb thermometer will read considerably cooler as the evaporating water cools the thermometer

      At 100% humidity the two thermometers will read the same, as no water will be evaporating.