A heat wave is defined by the ARC as a ‘prolonged period of excessive heat and humidity’. This is a useful definition because it emphasizes the combined effects of both air temperature and humidity. Heat kills by pushing the human body beyond its limits. In extreme heat and high humidity, evaporation is slowed and the body must work extra hard to maintain a normal temperature [FEMA]. As well as significant loss of life, heat waves can also cause significant economic losses through livestock/crop losses and damage to roads, railways, bridges, power reticulation infrastructure, electrical equipment, and so on.
How do I prepare?
Consider creating a or revising your current workplace's Business Continuity Program.
What do I need to know?
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