The Heat Index is a hell of a lot more than simply “what it feels like” outside
The heat index is based on the relative humidity. When this relative humidity is HIGH, it significantly reduces the ability of our sweat to evaporate off our skin. This sweating and evaporation process is how our bodies are cooled. Our Heat-Related Illness Prevention Plan’s “action temperature(s)” MUST be based on the HEAT INDEX – not the […]
