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 ?
During sampling in December the wind factor (18 knots) and UV Index (7.
There was no wind factor, it was just that I didn't strike it as well as the one in the first half.
BARLEY MOW cashed in on the first-half wind factor to secure a 3-2 win against Rugby Workers.
Civil Defense helicopters were not deployed to fight the fire because of the unfavorable wind factor, he said.
The wind factor will keep off frost but cause drifting as temperatures plummet to -5C in the north and -2C in the central belt and west Scotland tonight.
An agricultural building may have a wind factor of 0.
The Fartless Factory, based in Idaho, has won awards for its products over the past 12 years due to its formula for, er, taking the wind factor out of food.
However, elsewhere it should stay generally dry and bright, although it will feel cold as the wind factor brings temperatures down.
All old courses are designed for the wind factor, and it can present quite a challenge.
Both bowlers made their mark during the last Test, but Richardson warned that if they were to repeat that in this week's second match of the series they would have to overcome Basin Reserve's notorious wind factor.