Winter Weather Safety

Winter Warning/Watch/Advisory

Winter Storm Warning
Snow, sleet or ice expected! Take Action. Confidence is high that a winter storm will produce heavy snow, sleet or freezing rain and cause significant impacts.
Winter Storm Watch
Snow, sleet or ice possible! Be prepared. Confidence is medium that a winter snow could produce heavy snow, sleet or freezing rain and cause significant impacts.
Winter Weather Advisory
Winter weather expected. Exercise caution. Light amounts of wintry precipitation or patchy blowing snow will cause slick conditions and could affect travel if precautions are not taken.

Calculates wind speed at an average height of 5 feet, the typical height of an adult human face, based on readings from the national standard height of 33 feet, which is the typical height of an anemometer;
Is based on a human face model;
Incorporates heat transfer theory based on heat loss from the body to it's surroundings, during cold and breezy/windy days;
Lowers the calm wind threshold to 3 mph;
Uses a consistent standard for skin tissue resistance;
Assumes no impacts from the sun, i.e., clear night sky.

Page updated

Report abuse