Winter Weather Center

72-Hour Probability of Snow Accumulating

Day 3-7 U.S. Hazards Outlook

Day 8-14 U.S. Hazards Outlook

Short-Range Climate Outlook

WPC

Precipitation Outlook / Forecast Maps

Day 1

Day 2

Day 3

WPC

Winter Storm Severity Index (WSSI)

This chart is a useful chart giving the probable impact levels for specific area. Follow the color-coded legend at the bottom to determine what the overall risk is. This chart uses information like snow amount, snow load, ice accumulation, freezing temperatures, blowing snow, and blizzard condition chances to calculate the overall risk.