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Understanding Blizzard Alerts: A Beginner's Guide

June 17, 2026 · The Clime Team
Understanding Blizzard Alerts: A Beginner's Guide

Blizzards are severe winter storms characterized by heavy snowfall, strong winds, and reduced visibility. Understanding blizzard alerts is crucial for safety during these hazardous conditions.

What Is a Blizzard?

A blizzard is defined by the National Weather Service (NWS) as a storm with:

  • Sustained winds or frequent gusts of 35 mph (56 km/h) or greater
  • Considerable falling and/or blowing snow
  • Visibility reduced to less than 1/4 mile (400 meters)
  • These conditions must persist for at least three hours. (weather.gov)

Blizzard Warnings vs. Watches and Advisories

The NWS issues various alerts to inform the public about winter weather conditions:

  • Blizzard Warning: Indicates that blizzard conditions are imminent or occurring. Travel is dangerous and should be avoided if possible. (weather.gov)

  • Winter Storm Watch: Issued when severe winter conditions, such as heavy snow or ice, are possible in the area. It provides 12 to 36 hours' notice to prepare. (mil.wa.gov)

  • Winter Storm Warning: Issued when heavy snow, sleet, or freezing rain is occurring or imminent. Travel is expected to be hazardous. (weather.gov)

How to Stay Safe During a Blizzard

  • Stay Informed: Monitor local weather updates and heed all warnings and advisories.

  • Limit Travel: Avoid unnecessary travel during blizzard conditions. If travel is essential, ensure your vehicle is equipped with emergency supplies.

  • Prepare Your Home: Keep extra blankets, non-perishable food, and water in case of power outages.

  • Dress Appropriately: Wear layers, a warm hat, gloves, and insulated boots to protect against cold temperatures and wind.

Understanding Blizzard Alerts with Clime

Clime offers real-time weather updates and alerts, including blizzard warnings, to keep you informed and safe during severe winter conditions.

Highlights:

  • How are winter storm watches, advisories, and warnings different? | National Geographic, Published on Thursday, February 24
  • Safety - Winter Definitions
  • Watch Warning Advisory Products Explained

Frequently Asked Questions