wind chill

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wind chill

The cooling effect of wind at low temperatures. This is greater than the effect of ambient cold alone and may cause rapid heat loss, adding to the risk of HYPOTHERMIA.
References in periodicals archive ?
Seasonal differences of wind chill temperatures during rescue operations (Siple-Passel-model) Chill Summer Winter operations operations (n=306) (n=431) Temperature "Average "Worst case "Average "Worst case [[degrees]C] conditions" conditions" conditions" conditions" [%] [%] [%] [%] > -30 100.0 96.0 99.7 81.2 -30 to -45 0.0 4.0 0.3 17.1 < -45 0.0 0.0 0.0 1.7 With the Danielsson model and "mean conditions" there was no or minimal risk of frostbite in 97.2% of all rescue operations and in 2.8% a risk of >5%.
In both formulas 7 and 8, T (WC) is wind chill temperature, T is temperature, and V is wind speed in m/hr.
Frostbite is tissue damage caused by exposure to intense cold, and usually occurs when wind chill temperatures fall below 25 degrees F.
The old formula for computing wind chill temperature, based on experiments conducted over 50 years ago and relying on equally dated assumptions, resulted in wind chill temperature measurements that are now considered too low.
The service, on its Web site, defines wind chill temperature "as the temperature that it feels like outside to people and animals."
Wind chill temperatures in dozens of towns across Minnesota and North Dakota plummeted to 60 below or less, the weather service said.
Wind chill temperatures are set to feel as low as -13C later this week, some forecasters say.
He's a big dog, which means big dog activities in the snow -- going for walks in wind chill temperatures of 20 degrees below zero, playing "find the snowball" and, our newest game, "I've got your snow shovel, chase me."
Braving wind chill temperatures of -41degC and snow clad slopes, Brian Jackson led an expedition to reach the 5,930 meters summit of Nar Phu after 19 endurance testing days.
Other sections of the country experienced wind chill temperatures of 50 below; rivers were blocked by 8-foot thick ice, and the firewood supplies of homeowners were being turned into ashes quicker than expected.
Racing went ahead despite wind chill temperatures of -12C, but the bookies felt a chill as Willie Mullins' peerless nine-year-old recaptured the Champion Hurdle crown he lost 12 months ago.