Emergency Alert and Warning Information


To receive emergency information during severe weather or other hazardous events, we recommend getting a NOAA Weather Radio, familiarizing yourself with the Integrated Public Alert & Warning System, and tuning into local media reports, from television, radio, or social media. It's important to have multiple ways to receive alerts and warnings.

Sarpy County Alerts

Sarpy County Alerts (powered by AlertSense/Konexus) is a free service that sends emergency alerts and warnings via email, text messages, voice calls, and push notifications (when using the myAlerts app). Click on the buttons below to sign up to receive alerts, modify a current subscription or unsubscribe, and to download the myAlerts app from Google Play or the App Store.

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Outdoor Warning Sirens

The outdoor warning sirens warn those outdoors to take shelter indoors and then to seek information from a trusted source. The sirens should not be relied upon to give sufficient warning indoors or in noisy areas. All sirens are activated when:

  • The National Weather Service issues a Tornado Warning or a Severe Thunderstorm Warning with the Destructive Damage Threat tag.
  • A trained and certified weather spotter or a public safety official reports tornadic activity or destructive winds.
  • A dangerous situation occurs which requires residents to seek shelter immediately.

During an activation, sirens will be sounded for about three minutes. There is no "all-clear" siren. Sirens may sound multiple times if additional warnings are issued, or additional hazards emerge.

Please note, Gretna and Springfield activate sirens for fire calls between 8am and 6pm seven days a week. For fire calls, the siren produces a wail tone (alternates high/low sound). A steady tone is used for all other activations.


Siren tests are conducted March through October on the first Saturday of the month at 10am. Tests may be cancelled if severe weather or near/below freezing temperatures are forecast.

Reporting Issues

To report a faulty siren, please send us an email at SarpyEMA@sarpy.gov. In your message, please include the location of the siren and a description of the issues that are occurring.