Calculate wind chill factor

The effects of wind chill can overcome anyone who is not aware of the danger. Bare skin can freeze in a short time, resulting in frostbite, and the effects of hypothermia increase because wind intensifies temperature.

Wind chill temperature can be roughly figured out in the field. Just double the wind speed (which can be found using a small wind meter or your own estimation) and subtract this figure from the temperature to arrive at approximate wind chill.

For example, a temperature reading of 20F in a 10 mph wind would produce an approximate wind chill of 0deg F. As wind chill temperatures near or reach the freezing point, every precaution should be taken to avoid hypothermia and frostbite.-Norman Johnson.

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