Emergency Alert System (EAS) and Wireless Emergency Alerts (WEA)

The CWS is designed to provide specific information directly to the media through the Emergency Alert System. The EAS interrupts TV and radio broadcasts to deliver major local, regional, and national emergency alerts. Following the initial alert, TV and Radio stations provide ongoing status reports and information.

The CWS uses a federal system that sends text alerts to your smartphone during major emergencies, no registration needed! Check with your cell phone service provider to see if your cell phone can receive Wireless Emergency Alerts.

What does a Wireless Emergency Alert sound like?

To learn more about EAS and WEA click here. To register your address for future alerts, click here.

Voice, Text, and Email Alert Messages

The CWS is able to send compatible wireless devices voice, text, and email alerts in an emergency.  Unlike with a WEA or EAS alert, you will need to register with the CWS to receive these additional messages. 

picture of an aerial siren


The CWS may use sirens to alert you to a possible industrial hazard in your area. Sirens are sounded to draw your attention away from your daily activities. When you hear a siren, the best first protective action is to Shelter, Shut and Listen.

Sirens are tested on the first Wednesday of every month at 11:00 am. For the remaining Wednesdays, a more quiet and low-volume “growl” test is performed at 11:00 am. For a siren location map click here.

What does a CWS siren sound like?

NOAA Weather Radio

CWS uses the National Weather Service to provide emergency alerts and information for major non-weather related emergencies. Weather radios are an inexpensive and reliable way to receive these alerts. These devices can be battery powered to provide a means of receiving emergency alerts if your power is out. Learn more about NOAA Weather Radios here.

NOAA radio