Civil Defense System

The city owns & maintains three Civil Defense Sirens & is enrolled in CodeRED. 

The Sirens are used to indicate a local emergency or weather related incident.  Citizens are advised immediately to tune into local radio stations (K100 KOLV 100.1 FM or Q102 KQIC 102.5 FM) for further information.

The sirens are tested the first Wednesday of each month.

CODERED is also used to indicate a local emergency, weather information, and other pertinent information from the City of Olivia.  Community members can sign-up for free and register their phone number or all of their family phone numbers.

To register your phone number(s) or e-mail address for the Emergency Calling System, please click on the “Code Red” logo below. 


During the Severe Weather Season, the City of Olivia encourages everyone to be prepared and know what to do during severe weather.

The links below will help people understand the Types of Weather Warnings that are issued by the National Weather Service, Tips for an Emergency Preparedness Kit and Tips on how to respond before, during and after a tornado.

Types of Warnings
Emergency Preparedness Kit
Tornado Response