National Weather Service United States Department of Commerce

Heavy Snow and Gusty Winds in the North-Central US; Freezing Rain Possible in the Northern Plains and Appalachians

Areas of moderate to heavy snow and gusty to high winds are expected across the Northern Plains, Upper Midwest and Great Lakes. Patchy areas of light rain/freezing rain may develop along the rain-snow line over parts of the Northern Plains into the morning. A mix of light snow and freezing rain or drizzle is possible in the central Appalachians that may impact the morning commute. Read More >

 

Winter Briefing


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Local Storm Reports

Precipitation Forecast

Liquid Precipitation

Snowfall

Ice

Range of 3-Day Snowfall Possibilities

Probability of Snow Amounts

Winter Storm Severity Index

Day 1

Day 2

Day 3


WSSI Web Page

WSSI Fact Sheet


Forecast Timelines

Single Site Timelines

Detailed Point Forecast

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Climate Outlooks

8-14 Day Temp Outlook

8-14 Day Precip Outlook


Winter Weather Definitions

Winter Storm WATCH:

A winter storm or blizzard is possible, but the timing and area affected are still uncertain.


Winter Storm WARNING:

A dangerous winter storm with snow, freezing precipitation, strong winds, and/or cold temperatures is expected or occurring.


Blizzard WARNING:

A severe winter storm with winds 35 mph or greater and snow or blowing snow, reducing visibility to less than 1/4 mile is expected or occurring.


Ice Storm WARNING:

Ice accumulations of 1/4 inch or more that could cause dangerous conditions and significant damage is expected or occurring.


Winter Weather ADVISORY:

Three to five inches of snow, blowing snow, light freezing precipitation, strong winds, and/or cold temperatures are expected or occurring.


Wind Chill WARNING:

Wind chill values -35 degrees F or colder.


Wind Chill ADVISORY:

Wind chill values between -25 degrees and -35 degrees F.


High Wind WARNING:

Sustained winds 40 mph or greater or wind gusts 58 mph or greater.


Wind ADVISORY:

Sustained winds 30 to 39 mph or wind gusts 45 to 57 mph.


Dense Fog ADVISORY:

Visibilities at or below 1/4 mile.


Freeze WARNING:

Temperatures 32 degrees or colder for several hours over a widespread area during the growing season, generally May 1 through October 15.


Frost ADVISORY:

Temperatures 33 to 36 degrees, clear skies, and light winds for several hours over a widespread area during the growing season, generally May 1 through October 15.