Crime & Safety
Siren Test Issued At 10 a.m. Wednesday In San Mateo County
The San Mateo County alert system is running a test. This is a test only.

REDWOOD CITY, CA -- Don't be alarmed. San Mateo County authorities are running a test to ensure the alert system is operating properly.
The test will be heard by a siren scheduled for 10 a.m. Wednesday, county officials announced.
--Image via Shutterstock
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