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 ?
soldiers (n = 273) are first- and second degree frostbite and 71% of them happened at equivalent wind chill temperatures of <-29[degrees]C (22).
During this period the personnel is exposed to wind speed up to 160 km/h (and sometimes even more) resulting in extreme equivalent wind chill temperatures and an extreme risk of frostbite.
According to Table 3, if wind chill temperature is considered in different areas, there will be some problems for human that are illustrated in Table 4 [7].
0202886 Mi/h Table 3: wind chill temperature based on the formula No.
In certain conditions, the recent changes have significantly changed wind chill temperature computations.
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.
However, it will seem that way if you step outside with a "new" wind chill temperature and an "old" frame of reference.
As a result, wind chill temperatures all across the continent soared the very next day.
Wind chill temperatures have been published by the National Weather Service since 1973.
Fell top assessors are expected to reach the summit in less than two hours, checking wind directions and speeds, air and wind chill temperatures and conditions underfoot.
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.