A national emergency alert test will blare out across the U.S.
According to FEMA, every TV, radio and cellphone will be interrupted with an emergency message at 2:20 p.m. Eastern Time today. If your mobile phone is on and within range of an active cell tower from a participating wireless provider, you should receive the national test. Wireless providers will transmit the national test for 30 minutes, but your phone should only receive it once.
Officials say the alert is similar to an Amber Alert or warnings issued by the National Weather Service.