Osceola Nebraska AlertSense

Polk County Alerts

and Notifications

Sign up to receive emergency alerts and severe weather warnings that could directly impact you and your family through AlertSense. There is a signup link on the Polk County website or you can sign up directly on the AlertSense Website


Sign up via the Polk County Website:


Sign up directly Via the AlertSense Website:


When signing up, please provide your address and preferred method(s) of contact. Adding your address will allow tailoring so you do not receive alerts that don’t pertain to your geographical area. Residents can also download the free AlertSense mobile app for Android and Apple devices.

These alerts are provided free of charge, however standard text messaging rates and other charges may apply. AlertSense is not intended to be the sole source of your emergency information, but to be another method in which you may be contacted and emergency information may be delivered.

Benefits of AlertSense Notifications

Emergency response agencies in Polk County are able to send you emergency alerts via text message, email, pager, or voice mail (in extreme cases), based on your preferences. In partnership with Polk County, the City of Osceola is able to send alerts through AlertSense. All residents and businesses are urged to sign up for these alerts/notifications. When signing up, you may customize the types of alerts you would like to receive. You may also modify your existing subscription or unsubscribe to stop notifications at any time.

The system is intended to be used for emergency alerts, as well as non-emergency incidents that may have significant impacts to residents. Emergency Alerts could be related to specific hazards that require some kind of action be taken such as evacuation, shelter in place, boil water orders, water main breaks, sewer work, or severe weather warnings. Non-emergency alerts could include notices regarding street closures due to repairs. This list is not meant to be all inclusive. AlertSense will not be used for routine information. In addition to receiving information on your wireless device, you may also receive notification on your land telephone line (if you have one) depending on the type of incident or event.  Alerts will come from 877-957-9563.

Osceola Nebraska Tornado Warning

Tornado Siren and

Outdoor Alert Warning Systems

Monthly Alarm Testing

The Tornado Siren and Outdoor Alert Warning test occurs the second Monday of each month at 1:15 P.M. The siren is a continuous blast. The test will last approximately up to 5 minutes.


In case of inclement weather on the second Monday, the test will occur on the third Monday. Incase of inclement weather on the third Monday, we will test the following month. 

Outdoor Weather Warning Alerts

The outdoor alert warning system will sound in Osceola, when there is eminent danger to the citizens of Osceola. The siren will sound for 3-5 minutes on a continuous blast. The Siren will not only sound for the direct threat of a tornado, but may also sound for large hail and damaging wind. There is no clear siren. 

It is encouraged that the public keep themselves current on active weather in the area. Remember, the sirens are called outdoor alert warning system. This warns the public who are outside of their homes that an event is happening, or is about to happen. We strongly recommend that citizens listen to the local radio and T.V. stations.