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Continental Signals
Severe weather · NA
Severe weather · Winter

When the storm closes the road.

A blizzard isn't just heavy snow — it's a wind and visibility event. An ice storm can pull down a whole regional grid in a night. The two countries agree on the danger and disagree, quietly, on the thresholds.

United States · NWS

Watch · Warning · Blizzard criteria.

The NWS issues Winter Storm Watches and Warnings for heavy snow, sleet, or freezing rain. A Blizzard Warning requires sustained winds or gusts of 35 mph+ with visibility under ¼ mile for 3+ hours. Ice Storm Warnings flag ¼ inch or more of ice accretion.

Canada · ECCC

Winter storm, blizzard, snow squall.

ECCC issues Winter Storm Warnings for combined hazards, Blizzard Warnings on similar wind/visibility criteria, and specific Snow Squall Warnings for narrow, intense bands off the Great Lakes. Freezing rain warnings are issued separately.

Live · Winter storms

Active alerts right now.

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Alerts near you

Point-based lookup covers US zones only. Canadian users: browse alerts by hazard below.

Last updated · Thu, 22 Oct 2026 05:51:23 GMT · cached 60s
United States · 13
  • Winter Weather Advisory · Moderate
    Winter Weather Advisory issued October 21 at 10:53PM MDT until October 24 at 12:00AM MDT by NWS Great Falls MT
    Little Belt and Highwood Mountains
    Until 10/22/2026, 11:00:00 PM
  • Winter Weather Advisory · Moderate
    Winter Weather Advisory issued October 21 at 10:53PM MDT until October 24 at 12:00AM MDT by NWS Great Falls MT
    Elkhorn and Boulder Mountains; Northwest Beaverhead County; Gallatin and Madison County Mountains and Centennial Mountains
    Until 10/22/2026, 11:00:00 PM
  • Winter Weather Advisory · Moderate
    Winter Weather Advisory issued October 21 at 10:53PM MDT until October 24 at 3:00AM MDT by NWS Great Falls MT
    Bears Paw Mountains and Southern Blaine; Snowy and Judith Mountains
    Until 10/22/2026, 11:00:00 PM
  • Winter Weather Advisory · Moderate
    Winter Weather Advisory issued October 21 at 9:31PM PDT until October 22 at 11:00AM PDT by NWS Hanford CA
    Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Sequoia NP; South End of the Upper Sierra
    Until 10/22/2026, 1:00:00 PM
  • Winter Weather Advisory · Moderate
    Winter Weather Advisory issued October 21 at 3:06PM AKDT until October 24 at 10:00AM AKDT by NWS Fairbanks AK
    Lower Kobuk Valley; Baldwin Peninsula
    Until 10/22/2026, 3:00:00 PM
  • Winter Storm Warning · Severe
    Winter Storm Warning issued October 21 at 3:06PM AKDT until October 25 at 4:00PM AKDT by NWS Fairbanks AK
    Upper Kobuk Valleys
    Until 10/22/2026, 3:00:00 PM
  • Winter Storm Warning · Severe
    Winter Storm Warning issued October 21 at 3:06PM AKDT until October 25 at 4:00PM AKDT by NWS Fairbanks AK
    South Slopes of the Western Brooks Range; Noatak Valley
    Until 10/22/2026, 3:00:00 PM
  • Blizzard Warning · Extreme
    Blizzard Warning issued October 21 at 3:06PM AKDT until October 24 at 10:00AM AKDT by NWS Fairbanks AK
    Interior Seward Peninsula
    Until 10/22/2026, 3:00:00 PM
  • Blizzard Warning · Extreme
    Blizzard Warning issued October 21 at 3:06PM AKDT until October 24 at 1:00AM AKDT by NWS Fairbanks AK
    Southern Seward Peninsula Coast
    Until 10/22/2026, 3:00:00 PM
  • Blizzard Warning · Extreme
    Blizzard Warning issued October 21 at 3:06PM AKDT until October 24 at 1:00AM AKDT by NWS Fairbanks AK
    Shishmaref; Bering Strait Coast
    Until 10/22/2026, 3:00:00 PM
  • Winter Storm Watch · Severe
    Winter Storm Watch issued October 21 at 2:37PM AKDT until October 25 at 4:00PM AKDT by NWS Fairbanks AK
    South Slopes Of The Central Brooks Range; Upper Koyukuk Valley
    Until 10/22/2026, 3:00:00 PM
  • Winter Weather Advisory · Moderate
    Winter Weather Advisory issued October 21 at 1:39AM PDT until October 22 at 5:00PM PDT by NWS Reno NV
    Mono
    Until 10/22/2026, 12:00:00 PM
  • Winter Storm Watch · Severe
    Winter Storm Watch issued October 20 at 2:39PM AKDT until October 25 at 4:00PM AKDT by NWS Fairbanks AK
    Western Arctic Coast
    Until 10/22/2026, 6:00:00 AM
Canada · 0
  • No active alerts.
Safety

If an alert covers you.

  • →If travel isn't essential, don't. Most winter storm deaths happen on the road.
  • →Keep a car kit: blanket, water, snacks, phone charger, shovel, flashlight, sand or kitty litter.
  • →During a power outage, never run a generator, grill, or camp stove indoors — carbon monoxide is silent.
  • →Watch for frostbite: numb, waxy skin on cheeks, nose, fingers, toes. Rewarm slowly.
  • →Check on neighbours with disabilities, seniors, and anyone on electrically-powered medical equipment.
Sources