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Live Winter Storm Warning Tracker

Real-time winter storm warning tracking across the United States 🇺🇸.

Active Warnings

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States Affected

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Last Updated

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Live Winter Storm Map

Live Updates

NWS Winter Weather Events

The National Weather Service provides multiple types of alerts to help protect the public when dangerous winter weather conditions are expected or occurring.

No active winter weather alerts

5 of 3 event types selected

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Active Winter Storm Warnings

Current Warnings

1:00
Updated: Never

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Expired Warnings

Expired Winter Storm Warnings Map

Last 48 Hours

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Recent Expired Warnings

Expired Warnings

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Winter Weather Advisory
Expired: Never
States:
WI
Counties:
Fond Du Lac; Sheboygan; Washington; Ozaukee; Waukesha; Milwaukee; Racine; Kenosha
What's happening?
Snow. Light snow tapering to flurries. Winds gusting as high as 35 mph resulting in areas of blowing snow affecting north to south oriented roads.
Winter Weather Advisory
Expired: Never
States:
MI
Counties:
Oceana; Muskegon; Ottawa; Allegan; Van Buren; Kalamazoo
What's happening?
Periods of snow showers. Additional snow accumulations 1 to 4 inches with locally higher amounts.
Winter Weather Advisory
Expired: Never
States:
MI
Counties:
Mason
What's happening?
Periods of snow showers. Additional snow accumulations 1 to 4 inches with locally higher amounts.
Winter Weather Advisory
Expired: Never
States:
PA
Counties:
Southern Erie
What's happening?
Snow expected. Total snow accumulations of 3 to 5 inches. Winds gusting as high as 35 mph.
Winter Weather Advisory
Expired: Never
States:
WI
Counties:
Southern Marinette, Southern Oconto
What's happening?
Blowing and drifting snow is expected. Winds gusting as high as 35 mph.
Winter Storm Warning
Expired: Never
States:
WI
Counties:
Southern Marinette, Southern Oconto
What's happening?
Blowing and drifting snow is expected. Winds gusting as high as 35 mph.
Winter Storm Warning
Expired: Never
States:
WI
Counties:
Fond Du Lac; Sheboygan; Washington; Ozaukee; Waukesha; Milwaukee; Racine; Kenosha
What's happening?
Accumulating snow will end early this morning. Blowing snow is expected through mid afternoon, causing travel impacts. Winds will gust as high as 35 mph.
Winter Weather Advisory
Expired: Never
States:
IA
Counties:
Worth; Cerro Gordo; Wright; Franklin; Butler; Bremer; Hamilton; Hardin; Grundy; Black Hawk; Boone; Story; Marshall; Tama; Dallas; Polk; Jasper; Poweshiek; Warren; Marion; Mahaska
What's happening?
Very light snow may occur this afternoon though no accumulation is expected.
Winter Storm Warning
Expired: Never
States:
MI
Counties:
Presque Isle; Alpena; Alcona; Ogemaw; Iosco; Gladwin; Arenac; Southeast Chippewa; Eastern Mackinac
What's happening?
The threat for heavy snow has ended; however, snow showers will continue over the next several hours.
Winter Weather Advisory
Expired: Never
States:
MI
Counties:
Emmet; Cheboygan; Leelanau; Antrim; Otsego; Montmorency; Benzie; Grand Traverse; Kalkaska; Crawford; Oscoda; Manistee; Wexford; Missaukee; Roscommon; Western Chippewa; Central Chippewa; Western Mackinac; Mackinac Island/Bois Blanc Island; Beaver Island, surrounding islands; Charlevoix
What's happening?
The threat for heavy snow has ended; however, snow showers will continue over the next several hours.

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Today's Outlook

Today's National Snowfall Outlook (Loading date...)

NOAA PWPF Data

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Snowfall Probability

≥1" snow

This map displays official NOAA WPC Probabilistic Winter Weather Forecast (PWPF) data showing snowfall probability across the United States for today. Use the filter to view different snow accumulation thresholds.

View Official NOAA PWPF Snow Probability Data
Tomorrow's Outlook

Tomorrow's National Snowfall Outlook (Loading date...)

NOAA PWPF Data

Opacity

Snowfall Probability

≥1" snow

This map displays official NOAA WPC Probabilistic Winter Weather Forecast (PWPF) data showing snowfall probability across the United States for tomorrow. Use the filter to view different snow accumulation thresholds.

View Official NOAA PWPF Snow Probability Data
Map Guide

Understanding Our Winter Storm Warning Maps

WinterStormWarn delivers real-time tracking of various winter weather alerts through specialized interactive maps, helping you stay informed and safe during dangerous winter storm events.

Types of Winter Storm Alerts We Track

  • •Winter Storm Warning: Take Action! A Winter Storm Warning is issued when significant winter weather is imminent or occurring. Heavy snow, ice, or blizzard conditions are expected that will make travel extremely dangerous or impossible.
  • •Winter Storm Watch: Be Prepared! A Winter Storm Watch is issued when conditions are favorable for significant winter weather. Monitor forecasts closely and be prepared to take action if a warning is issued.
  • •Winter Weather Advisory: Be Aware: A Winter Weather Advisory is issued when winter weather conditions are expected that may cause travel difficulties but are not typically life-threatening. Exercise caution when traveling.

Live Winter Storm Map

Displays active winter storm warnings with real-time radar.

What is a Winter Storm Warning?

A Winter Storm Warning means significant winter weather is imminent or occurring. Heavy snow, ice, or blizzard conditions are expected that will make travel extremely dangerous or impossible.

How To Use

  • • Toggle radar layer
  • • Adjust opacity for better visibility
  • • Play/pause radar animation to track storm movement

Why It Matters

Combining winter storm warnings with radar helps you visualize active threats and understand storm movement in your area.

Recent Expired Warnings

Shows winter storm warnings from the past to analyze recent patterns.

How To Use

  • • Review past warning polygons to see affected areas
  • • Compare with current conditions using the map style selector
  • • Click on any warning to view detailed information
  • • Use radar overlay to see how storms tracked

Why It Matters

Historical data helps identify patterns and verify whether areas that received warnings were actually impacted by winter weather.

Map Controls Explained

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Radar Controls

Our radar layer shows precipitation intensity from light rain (blue) to intense storms (red/purple).

  • • Animation controls let you play through the last hour of radar to track storm development and movement direction
  • • Opacity control helps blend radar with other map features for optimal visualization

Our Data Sources

WinterStormWarn combines multiple official data sources to provide comprehensive winter storm monitoring:

National Weather Service Warnings

Official winter storm warning polygons with precise geographic boundaries.

RainViewer Radar

High-resolution radar imagery showing precipitation intensity and storm cells.

Mapbox Visualization

Professional mapping platform for interactive visualization and geographic analysis.

Data is automatically refreshed every 30-60 seconds for warnings (more frequently when active warnings exist) and every 5 minutes for radar imagery to ensure you have the most current information available.

Winter Storm Safety Tips

  • • Avoid unnecessary travel during winter storm warnings.
  • • Keep emergency supplies in your vehicle including blankets, food, and water.
  • • Prepare your home with adequate heating and emergency supplies.
  • • Stay indoors during blizzard conditions and heavy snowfall.
  • • Monitor our live maps and local weather alerts during winter storm events.

Learn more at NOAA's Winter Weather Safety Guide