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  1. Integrated Public Alert & Warning System - FEMA.gov

    Whether you're sending, receiving, developing or communicating about alerts, find the tools you need for your role in the Integrated Public Alert & Warning System.

  2. Emergency Alerts | Ready.gov

    Sep 19, 2025 · When emergencies strike, public safety officials use timely and reliable systems to alert you. This page describes different warning alerts you can get and how to get them.

  3. Warning system - Wikipedia

    Warning light indicating danger of laser exposure A warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger.

  4. The Emergency Alert System (EAS) | Federal Communications Commission

    The Emergency Alert System (EAS) is a national public warning system commonly used by state and local authorities to deliver important emergency information, such as weather and AMBER alerts, to …

  5. Emergency alert systems | Sound, Warning, Tests, & Around the …

    Emergency alert systems, national public warning systems used by local authorities to deliver important information to affected citizens and communities in an emergency, such as a natural disaster or child …

  6. Active Alerts - National Weather Service

    Active weather alertsNWS API Excessive Rainfall National River Flooding Thunderstorm/Tornado Outlook Hurricanes Fire Weather Outlooks UV Alerts Tsunamis Drought Space Weather Winter …

  7. National alert test: Why you got an emergency message today | AP News

    The Emergency Alert System is a national public warning system that’s designed to allow the president to speak to the American people within 10 minutes during a national emergency via specific outlets …

  8. Emergency Alert System - Wikipedia

    The Emergency Alert System (EAS) is a national warning system in the United States designed to allow authorized officials to broadcast emergency alerts and warning messages to the public via cable, …

  9. Emergency Alert System - FEMA.gov

    The Emergency Alert System (EAS) is a national public warning system that requires radio and TV broadcasters, cable TV, wireless cable systems, satellite and wireline operators to provide the …

  10. Warning system - Alerts, Detection, Prevention | Britannica

    Closely allied to warning systems are space-object detection and tracking systems. It is likely that only the United States and the Soviets have developed and operate these systems.