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Wind chill index values for a range of temperatures and wind speeds, from the standard wind chill formula for Environment Canada. Wind chill (popularly wind chill factor) is the sensation of cold produced by the wind for a given ambient air temperature on exposed skin as the air motion accelerates the rate of heat transfer from the body to the surrounding atmosphere.
Wind chill makes it feel much colder than it really is, so it's been described as a "feels-like" number. If the temperature is 0 degrees and the wind is blowing at 15 mph, the wind chill is 19 ...
Apparent temperature, also known as "feels like", [1] [2] is the temperature equivalent perceived by humans, caused by the combined effects of air temperature, relative humidity and wind speed. The measure is most commonly applied to the perceived outdoor temperature.
A wind chill watch is a weather watch formerly issued by the National Weather Service of the United States when the wind chill could reach dangerous levels within the next 12 to 48 hours; as of October 2024 it has been re-named "extreme cold watch." The exact definition required to issue a watch varies from state to state or from National ...
Seoul, the capital of South Korea, features a dry-winter humid continental climate (Dwa) in the 0°C isotherm according to the Köppen climate classification.If the -3°C isotherm is used, the climate is a dry-winter humid subtropical climate (Cwa) [2] [3] and there are four highly distinct seasons.
A cold weather advisory (formerly known as a wind chill advisory until October 2024) [1] is a hazardous weather statement issued by Weather Forecast Offices (WFO) of the National Weather Service (NWS) in the United States to alert the public that temperatures or wind chills are forecast to reach values low enough that it poses a threat to human health and life if adequate protection is not ...
That same day, Dickinson, North Dakota reached a −70 °F (−57 °C) wind chill, their coldest since the wind chill formula was updated in 2001, and a −33 °F (−36 °C) air temperature, a daily record and their coldest temperature since 1990. [98] On January 16, Houston dropped to a daily record low of 19 °F (−7 °C). [99]
Charles Eagan (1921 – March 11, 2010) was a Canadian scientist working in cold weather physiology, known primarily for advancing the wind chill formula.. Antarctic explorers Paul Siple and Charles Passel had created their original formula for wind chill measurements in 1939 by drawing on data that showed how long it took water to freeze in a cylinder under various wind and temperature ...