Posted by Rollie NE PA on January 25, 2019 at 17:05:33 from (108.57.53.132):
In Reply to: Minus 27 posted by 2510Paul on January 25, 2019 at 06:38:05:
Wind chill used to be based on the evaporation of moisture from the skin. The National weather service now uses a new formula. It uses calculated wind speeds at an average height of five feet (typical height of a human face) based on readings from the national standard height of 33 feet (typical height of an anemometer is based on the latest heat transfer theory, i.e, .heat loss from the body to its surroundings, during cold and breezy/windy days ; and uses a standard factor for skin tissue and assumes a no sunlight scenario.
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