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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 index values for a range of temperatures and wind speeds, from the standard wind chill formula for Environment Canada. Items portrayed in this file depicts
wind_chill_formula_chalkboard.png. Luckily, people have already done the math for you, so you can use this chart to determine your wind chill. wind_chill_chart.png.
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 ...
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 ...
The Australian formula includes the important factor of humidity and is somewhat more involved than the simpler North American wind chill model. The North American formula was designed to be applied at low temperatures (as low as −46 °C or −50 °F) when humidity levels are also low.
The NWS office in Tulsa, Oklahoma, in conjunction with Oral Roberts University's mathematics department, published an approximation formula to the WBGT that takes into account cloud cover and wind speed; in limited experimentation (four samples), the office claimed the estimate was regularly accurate to within 0.5 °F (0.28 °C), even with a ...
[16] [17] In spite of cold temperatures and stiff winds which exceeded the 29 miles per hour (47 km/h) and −23 °F (−31 °C) air temperature when Chicago set its all-time wind chill record of −57 °F (−49 °C) in 1983, Chicago did not break the record because the NWS had adopted a new wind chill formula in 2001.