Track winter storm warnings across the U.S. right now

None active

The winter storm tracker shows that 16 winter storm alerts are active in 7 states right now. Below: where they are, the travel and power impact, and what to do.

Where winter alerts are active

Winter storm, blizzard, ice and cold alerts in effect now. Use the buttons to jump to Alaska or Hawaii.

No tracked winter storm event right now

No winter storm event is being tracked right now. Local winter weather alerts may still be active, listed above when they are.

Check your location

See which alerts apply where you are, and what to do for each. ZIP code or city, no sign-up.

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Active official alerts

Watches and warnings in effect now, even when no named event is tracked.

  • Blizzard WarningCentral Beaufort Sea Coast; Eastern Beaufort Sea CoastUntil Nov 13, 4:00 PM AKST

    Blizzard Warning issued November 11 at 2:00PM AKST until November 13 at 4:00PM AKST by NWS Fairbanks AK

    Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.

    Alaska

    Official NWS bulletin →

  • Blizzard WarningNorthern Arctic CoastUntil Nov 13, 4:00 PM AKST

    Blizzard Warning issued November 11 at 2:00PM AKST until November 13 at 4:00PM AKST by NWS Fairbanks AK

    Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.

    Alaska

    Official NWS bulletin →

  • Winter Storm WarningLassen Volcanic National Park; Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 ft Including Highway 50; Sierra Nevada of Calaveras-Tuolumne-Southern Alpine Counties Above 5000 ftUntil Nov 14, 10:00 AM PST

    Winter Storm Warning issued November 12 at 12:05AM PST until November 14 at 10:00AM PST by NWS Sacramento CA

    Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.

    California

    Official NWS bulletin →

  • Winter Storm WarningGreater Lake Tahoe Area; Greater Lake Tahoe AreaUntil Nov 14, 10:00 AM PST

    Winter Storm Warning issued November 12 at 12:33AM PST until November 14 at 10:00AM PST by NWS Reno NV

    If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

    California, Nevada

    Official NWS bulletin →

  • Winter Storm WarningMonoUntil Nov 14, 10:00 AM PST

    Winter Storm Warning issued November 12 at 12:33AM PST until November 14 at 10:00AM PST by NWS Reno NV

    If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

    California

    Official NWS bulletin →

  • Winter Storm WarningEastern Sierra Slopes of Inyo CountyUntil Nov 14, 4:00 PM PST

    Winter Storm Warning issued November 11 at 11:43PM PST until November 14 at 4:00PM PST by NWS Las Vegas NV

    If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

    California

    Official NWS bulletin →

  • Winter Storm WatchYosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NPUntil Nov 17, 4:00 AM PST

    Winter Storm Watch issued November 11 at 5:33PM PST until November 17 at 4:00AM PST by NWS Hanford CA

    Monitor the latest forecasts for updates on this situation.

    California

    Official NWS bulletin →

  • Winter Weather AdvisoryLower Matanuska Valley; Southern Susitna ValleyUntil Nov 12, 5:00 AM AKST

    Winter Weather Advisory issued November 11 at 11:02PM AKST until November 12 at 5:00AM AKST by NWS Anchorage AK

    Slow down and use caution while traveling. For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

    Alaska

    Official NWS bulletin →

What could be next

In most of the country winter storms are most common from November through March, earlier in the northern states and mountains. Ice storms and extreme cold can happen far south of the heaviest snow, so check alerts even if you do not expect snow.

Winter storm names this season and who decides them

Winter storm watch, advisory and warning

AlertWhat it means
Winter Storm WatchSignificant snow, sleet or ice is possible, usually 12 to 48 hours ahead. Prepare now.
Winter Storm WarningSignificant winter weather is expected or occurring. Travel may be very hazardous or impossible.
Winter Weather AdvisorySnow, sleet or ice will cause inconvenience and could be hazardous, but is less severe than a warning.
Blizzard WarningSustained winds or frequent gusts of 35 mph or more with falling or blowing snow reducing visibility to under a quarter mile for at least 3 hours.
Ice Storm WarningIce accumulation of about a quarter inch or more is expected, which can bring down trees and power lines.

What to do

General steps in the order you will need them. Enter your location for steps matched to your actual alerts.

Get ready

Now

  • Check 511 for traffic, road conditions and restrictions before you leave, and share your timetable and your primary and alternate routes. In a winter storm warning, delay travel until conditions improve.

    Source: NWS: Before a winter storm
  • A wind chill warning means dangerously low wind chill is expected, which can cause frostbite and hypothermia. Avoid going outdoors if possible.

    Source: NWS: Winter watches, warnings and advisories Full guide →
  • Include a phone and charger, blankets or sleeping bags, a flashlight with extra batteries, a first aid kit, high-calorie food, extra dry clothing and a shovel. Keep the gas tank near full.

    Source: NWS: Before a winter storm Full guide →
  • Have a flashlight with extra batteries, a battery-powered NOAA Weather Radio, extra prescription medication, and food and water that need no cooking or refrigeration.

    Source: NWS: Before a winter storm Full guide →

Decide

If conditions worsen

Ride it out

During

  • Wear layers of loose, lightweight, warm clothing. If the heat goes out, close off unneeded rooms, stuff towels in door cracks, and eat and drink to fuel your body's heat production.

    Source: NWS: During a winter storm Full guide →
  • Stay in the vehicle and run the engine about 10 minutes each hour for heat. Open a window slightly and keep the exhaust pipe clear of snow to avoid carbon monoxide.

    Source: NWS: During a winter storm Full guide →
  • The areas most prone to frostbite are uncovered skin and the hands and feet. People exposed to extreme cold can develop hypothermia in a matter of minutes.

    Source: NWS: Cold Full guide →
  • Never use a generator inside your home or garage, even with doors and windows open. Run it only outdoors, more than 20 feet from windows, doors and vents.

    Source: CDC: Carbon monoxide
Warnings

Winter storm watch vs warning, blizzard and ice storm warnings

Tell a winter storm watch from a warning, and learn what blizzard and ice storm alerts and advisories mean and what the NWS says to do.

Understanding

Frost advisory vs freeze warning: what each means

Tell a frost advisory from a freeze warning, and see what each alert means, how cold it gets, and how frost differs from a freeze.

Understanding

Nor'easters explained, including when they hit and notable storms

Learn what a nor'easter is, how it got its name, where and when these coastal storms form, and the notable storms the NWS lists.

Understanding

Lake effect snow: what causes it and where it falls

Find out how lake effect snow forms over the Great Lakes, why it falls in narrow bands, and how heavy it can get, from the NWS.

Understanding

The polar vortex explained: what it is and how it brings Arctic cold

The polar vortex is always there. See how it can send Arctic air south and how to prepare for a cold snap, from the NWS.

Understanding

Ice storms, freezing rain and black ice: what they do and how to stay safe

See what heavy ice does to trees, power lines and roads, how black ice forms, and the minimum lake ice thickness the NWS gives.

Understanding

Worst snowstorms in U.S. history: NOAA's list of historic storms

The biggest U.S. snowstorms from NOAA NCEI's historic storm list: the 1993 Superstorm, Blizzard of 1996, 1978 blizzard and 1950 Appalachian storm.

Understanding

Wind chill explained: what it is and how the NWS calculates it

Wind chill measures how cold it feels. See the NWS formula, when it becomes dangerous, and example values from the NWS chart.

Preparing

Winter storm preparedness: getting your home ready

Get your home ready for a winter storm with Ready.gov guidance on insulation, detectors, several days of supplies and a car kit.

Preparing

What to keep in your winter car kit

Pack a winter storm survival kit for your car using the NWS list, and prepare your vehicle and yourself before winter weather arrives.

Staying safe

What to do if you are stranded in a vehicle in snow

What the NWS says to do if you are stranded in a vehicle in a winter storm or blizzard: stay with the vehicle, run the engine sparingly, signal for help.

Staying safe

Staying warm and safe in a winter power outage

How to keep warm during a winter power outage and avoid carbon monoxide poisoning from generators and heaters, from NWS, CDC and Poison Control.

Staying safe

Generator safety: preventing carbon monoxide poisoning

How to use a portable generator without carbon monoxide poisoning: keep it outdoors, 20 feet from windows, doors and vents, and use a battery CO alarm.

Staying safe

Extreme cold: dressing, frostbite and hypothermia

Dress and go out safely in dangerous cold, and learn the signs and first actions for frostbite and hypothermia, from NWS and Ready.gov.

Recovering

Food safety after a power outage or flood

Know how long food stays safe without power, what to throw away after an outage or flood, and how to make water safe to drink, from USDA.

Recent events

Common questions about winter storms

What is the difference between a winter storm watch and a warning?

A watch means significant winter weather is possible, usually 12 to 48 hours ahead. A warning means it is expected or already happening. Advisories cover less severe but still hazardous conditions.

When is a storm a blizzard?

When sustained winds or frequent gusts reach 35 mph or more with falling or blowing snow cutting visibility under a quarter mile for at least 3 hours. Snow depth is not part of the definition.

What should I keep in the car?

A charged phone and charger, blankets, water, snacks, a flashlight, jumper cables, and a full gas tank. If you can avoid driving during a warning, do.

Where do your winter alerts come from?

From the National Weather Service. We refresh them every 15 minutes and link to the official alert for every one.

How do I prepare for a winter storm?

Insulate and weatherstrip the home, learn how to keep pipes from freezing, and test smoke and carbon monoxide detectors. Stock supplies for several days without power, including medication and pet needs, and keep a car kit and a full tank of gas (Ready.gov).