Emergency Alerts
How to Access Emergency Alert Information
Click on the Emergency Alert button on the left-hand side of the Contra Costa County home page.
What the Emergency Alert Color Means
| Green Emergency Alert Light |
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When the Emergency Alert light is green, no emergencies exist in Contra Costa County at that time. |
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| Red Emergency Alert Light |
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When the Emergency Alert light is flashing red, an emergency exists in Contra Costa County. |
Our Emergency Alerts
Our alerts can be found in the following locations:
- On the County website, by clicking on the Emergency Alert Icon (the Emergency Alert is visible from many pages on the County's website)
- On CCTV (Comcast Channel 27, Astound Channel 32)
- On your cell phone - To sign up, go to our Registration Page
On KCBS, 740 AM radio
Emergency Preparedness Information