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 ?
So Bluestein decided to learn more about the wind-chill factor, and what he found out didn't impress him.
Tory Nigel Evans tried to get wind-chill factor included in the decision to give pounds 8.
In Opposition Labour implicitly supported moves by its own backbenchers to include the wind-chill factor when calculating cold weather payments.
A secret Met Office report leaked to the Mail urged that the wind-chill factor in Scotland should be taken into account when the extra pounds 8.
Red") Whittaker of Carnegie Mellon University in Pittsburgh announced from Erebus' upper flank, where the wind-chill factor hovered around - 55 [degres] C
For course participants, overcoming the adversity of blizzard conditions with a-20 degree wind-chill factor, successfully navigating through potential avalanche areas, preparing meals in subfreezing weather conditions, and implementing the appropriate skills to stay warm throughout the night, active involvement was necessary.
There could also be coverings of several inches of snow in lower-lying parts of the region and it will feel bitterly cold throughout the weekend with a significant wind-chill factor, according to the Met Office.
By midday, the cold advection could be felt as a wind-chill factor across southern and central Namibia, and spreading east and north by evening.
Clerk of the course Andrew Tulloch said: "Last night was one of the coldest we've had and with the wind-chill factor it's just not coming out of the ground.
Lips: Beautiful colour combined with moisturising benefits are a must when the wind-chill factor kicks in.
Yesterday's single-digit high of 9 and overnight low of zero, with a wind-chill factor of 10 to 15 below, enveloped the area in a blustery blanket of frigid air.