Clime
← Back to Blog
Guides

Understanding Wireless Emergency Alerts During Severe Weather

June 18, 2026 · The Clime Team
Understanding Wireless Emergency Alerts During Severe Weather

During severe weather events, staying informed is crucial for safety. In the United States, Wireless Emergency Alerts (WEA) are a vital tool in disseminating timely information about imminent threats.

What Are Wireless Emergency Alerts (WEA)?

WEA are short emergency messages sent by authorized government authorities to alert the public about emergencies in their area. These alerts are broadcast through cell towers, reaching all compatible mobile devices within the affected region. No subscription or app is required to receive these alerts. (weather.gov)

How Do WEA Work During Severe Weather?

When severe weather threatens, the National Weather Service (NWS) issues WEA to inform the public about specific hazards, such as tornadoes, flash floods, hurricanes, and tsunamis. These alerts are broadcast to all mobile devices within the threat area, ensuring that individuals receive timely warnings. (mass.gov)

Types of WEA Messages

WEA messages are categorized into several types:

  • Imminent Threat Alerts: Warn of severe weather or other disasters posing a threat to life or property.

  • Public Safety Messages: Provide information about imminent threats and prescribe actions likely to save lives or safeguard property.

  • AMBER Alerts: Notify communities about missing children.

  • Presidential Alerts: Issued during a national emergency.

These alerts are designed to be concise and actionable, providing essential information to help individuals respond appropriately. (weather.gov)

Receiving and Managing WEA on Your Device

Most modern mobile devices are WEA-capable and will automatically receive alerts when in an affected area. The alerts are broadcast at a set volume that cannot be changed and may override any blocks you have on your phone, such as 'Do Not Disturb' settings. (cricketwireless.com)

To manage WEA settings on your device, refer to your device's user manual or contact your wireless carrier for instructions. Some devices allow users to opt-in or opt-out of receiving certain types of alerts, such as imminent threat alerts and AMBER alerts, but not Presidential messages. (weather.gov)

Additional Resources

For more information on WEA and how to stay informed during severe weather, visit the National Weather Service's Wireless Emergency Alerts page.

By understanding and utilizing WEA, you can enhance your preparedness and response during severe weather events, ensuring your safety and the safety of those around you.

Frequently Asked Questions