The emergency alert test will involve sending three emergency alert notifications. They will happen at noon, 1 p.m., and 2 p.m.
The Plumas County Sheriff's Office is conducting an outreach effort to residents enrolled in the County's Emergency Alert System.
Mono County will send a test emergency alert to phones and devices in several areas on Thursday morning.
Officials say wildfires ravaging the Los Angeles area this week have killed at least 10 people and burned at least 10,000 homes, buildings and other structures.
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