Wind Chill



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What is Wind Chill?

Wind chill (often referred to as wind chill factor) is the air temperature felt on the skin exposed to the wind. The cooling temperature of the air is always lower than the air temperature, and the coldness of the air is unspecified at higher temperatures (above 100C [500F]).

A static air temperature that has a cooling effect on exposed human skin like a given combination of temperature and wind speed - also called chill factor, wind chill factor, wind chill index.

Wind chill temperatures range from -45oF to +45oF and wind speeds range from 3 to 60 mph. Wind chill temperatures will not only cause water to freeze. The water will freeze only when the temperature of the water reaches the freezing point.

Formula:
Wind Chill (Fo) = 35.74 + 0.6215T-35.75(V0.16) + 0.4275T (V0.16)
Where,
Where T = Air Temperature (F)
V = Wind Speed (mph)


Wind chill (often called wind chill factor) is the temperature of the air felt on exposed skin due to wind. Wind chill is always lower than air temperature, and wind chill is indefinite at higher temperatures (above 500 °F [100 °C]). A calm air temperature that would have the same cooling effect on exposed human skin as a given combination of temperature and wind speed, also called chill factor, wind chill factor, wind chill index. Wind chill is defined for temperatures in the range of -45oF to +45oF and wind speeds of 3 to 60 mph. Wind chill temperature alone will not cause the water to freeze. The water will only freeze when the temperature of the water reaches freezing point.

Example:
Calculate and convert wind chill. Temperature: 25 centigrade Wind speed (KmPH): 56 Kilometers (KmPH)

Solution:
Thermal sensation (Fo) = 35.74 + 0.6215T-35.75 (V0.16) + 0.4275T (V0.16)
Fahrenheit: 79 Celsius: 26