What is the wind chill effect?
As the speed of the wind increases, it can carry heat away from your body much more quickly. When there are high winds, serious weather-related health problems are more likely, even when temperatures are only cool. For a Wind Chill Chart (shows the difference between air temperature and perceived temperature and amount of time until frostbite occurs), Wind Chill Calculator, and information on the updated Wind Chill Temperature Index, see www.nws.noaa.gov/om/windchill.