UNITED STATES (CBS) — Your electronic devices may alarm you today — but there’s a reason for that. A nationwide test of the federal emergency alert system will be broadcast at approximately 2:20 p.m.

WASHINGTON — “THIS IS A TEST”: If you have a cellphone or are watching television Wednesday, that message will flash across your screen as the federal government tests its emergency alert system used ...

The Scott County Emergency Management Agency (EMA) is conducting a countywide test of the Wireless Emergency Alert (WEA) system for cell phones on January 10 at 1 p.m. The TEST ensures that public ...

Add Yahoo as a preferred source to see more of our stories on Google. An emergency alert test message from South Pasadena was accidentally sent to an estimated 10 million mobile phones across Los ...