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Understanding High Wind Alerts: A Quick Guide

June 18, 2026 · The Clime Team
Understanding High Wind Alerts: A Quick Guide

High wind events can pose significant risks, from property damage to personal injury. In the United States, the National Weather Service (NWS) issues specific alerts to inform the public about impending high wind conditions. Understanding these alerts and their criteria is essential for safety.

What Are High Wind Alerts?

High wind alerts are notifications issued by the NWS to warn the public about expected strong winds that could lead to hazardous conditions. These alerts are categorized into three main types:

  1. High Wind Watch: Indicates that sustained winds of 40 mph (35 knots) or greater, or wind gusts of 58 mph (50 knots) or greater, are possible within the next 12 to 48 hours. (weather.gov)

  2. High Wind Warning: Issued when sustained winds of 40 mph (35 knots) or greater for at least one hour, or wind gusts of 58 mph (50 knots) or greater for any duration, are expected. (weather.gov)

  3. Wind Advisory: Issued when sustained winds of 31 to 39 mph (27 to 34 knots) for at least one hour, or wind gusts of 46 to 57 mph (40 to 49 knots) for any duration, are expected. (weather.gov)

How Are These Alerts Determined?

The NWS uses specific criteria to issue these alerts:

  • High Wind Watch: Sustained winds of 40 mph (35 knots) or greater, or wind gusts of 58 mph (50 knots) or greater, are possible within the next 12 to 48 hours. (weather.gov)

  • High Wind Warning: Sustained winds of 40 mph (35 knots) or greater for at least one hour, or wind gusts of 58 mph (50 knots) or greater for any duration, are expected. (weather.gov)

  • Wind Advisory: Sustained winds of 31 to 39 mph (27 to 34 knots) for at least one hour, or wind gusts of 46 to 57 mph (40 to 49 knots) for any duration, are expected. (weather.gov)

Why Are These Alerts Important?

High wind conditions can lead to various hazards, including:

  • Property Damage: Strong winds can uproot trees, damage roofs, and break windows.

  • Power Outages: Fallen trees and power lines can disrupt electricity supply.

  • Travel Hazards: High winds can make driving dangerous, especially for high-profile vehicles.

  • Personal Injury: Flying debris and falling trees pose risks to individuals outdoors.

How to Stay Safe During High Wind Events?

  1. Stay Informed: Regularly check local weather updates and heed any alerts issued by the NWS.

  2. Secure Outdoor Items: Bring in or secure items like patio furniture, trash cans, and decorations that could become projectiles.

  3. Avoid Windows: Stay away from windows and doors to protect yourself from potential flying debris.

  4. Drive Cautiously: If you must drive, reduce speed and be aware of sudden gusts that can affect vehicle stability.

  5. Prepare an Emergency Kit: Ensure you have essentials like water, non-perishable food, medications, and flashlights in case of power outages.

Conclusion

Understanding high wind alerts and their criteria is crucial for personal safety. By staying informed and taking appropriate precautions, you can minimize the risks associated with strong wind events.

Highlights:

  • Wind Warnings, Watches and Advisories

Frequently Asked Questions