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.

wind chill

because strong winds magnify convective heat loss from the body, a climatic hazard is not exposed simply by quoting the temperature. A combination of air temperature and mean wind speed gives the important wind chill index.

wind chill index
derived from the equation:$$\hbox{W}_{\rm CI}=(10\times \hbox{W}^{-2}+10.45-\hbox{W})(33-\hbox{T})$$
where WCI = wind chill index; W = mean wind speed in meters/sec; T = air temperature in degrees Celsius.
wind chill temperature
special thermometers are available to express the effect of wind on the sensation of temperature. Based on the estimation of what the air temperature feels like to a human when the particular temperature is accompanied by a wind of a certain speed.
References in periodicals archive ?
For example, assuming an ambient air temperature of 5 degrees Fahrenheit as depicted on the top chart, and a wind speed of 30 miles per hour, the old wind chill temperature measurement was 40 degrees Fahrenheit.
One result of the new wind chill temperature recommendations is that frostbite clearly should be less of a concern at temperatures above zero degrees Fahrenheit.
government has used the Wind Chill Temperature Index as a means of trying to describe the severity of cold weather.
Parts of Britain along the Kent coast reported wind chill temperatures of minus 21C.
Tom and his father Tim had wandered lost for six hours, battling driving snow, five-foot drifts and wind chill temperatures down to minus 8C.
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.
Wind chill temperatures of well below 0 degrees and record snow showers have left many people more-than-ready to pack away their parkas, sweaters and boots for another year, in favor of the light, bright fashions of Spring.
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.
We've focused on wireless innovation to enable industrial efficiency in the toughest environments, from monitoring oil pipelines on the North Slope of Alaska, where wind chill temperatures are minus 56 deg C, or in the desert, where temperatures rise to over 40 deg C, with sandstorms and even the gnawing jaws of camels damaging wired connections," says Steve Sonnenberg, president of Emerson Process Management.