Heat Wave

A heat wave is a prolonged period of excessively hot weather, which may be accompanied by high humidity. While definitions vary, a heat wave is measured relative to the usual weather in the area and relative to normal temperatures for the season. Temperatures that people from a hotter climate consider normal can be termed a heat wave in a cooler area if they are outside the normal climate pattern for that area. The term is applied both to routine weather variations and to extraordinary spells of heat which may occur only once a century. Severe heat waves have caused catastrophic crop failures, thousands of deaths from hyperthermia, and widespread power outages due to increased use of air conditioning.

Read more about Heat WaveDefinitions, How They Occur, Health Effects

Other articles related to "heat wave, heat":

Heat Wave - History - 21st Century - 2010–Present
... The Northern Hemisphere summer heat wave of 2010 affected many areas across the Northern Hemisphere, especially parts of Northeastern China and European Russia ... The heat came from the Sahara desert and was not associated with rain ... of the American East Coast, from the Carolinas to Maine, was gripped in a severe heat wave ...

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