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.

Denver’s outdoor warning sirens will sound for three minutes on Wednesday morning as officials test the city’s emergency ...

Austin will participate in an emergency alert test Thursday, with Central Texas residents likely to receive notifications on their electronic devices, according to the city. Coordinated by the Texas ...