CHATTANOOGA (WRCB) -- The federal government will be testing the emergency alert system Wednesday on all TV and radio stations.
It could seem real if you don't know it's a test.
The first words will inform you that it's an important message from the White House.
The nationwide E.A.S. test will be Wednesday around 2pm, and last about 30 seconds.
The alert system can be activated by the president to inform the public in times of emergency. It has already been tested and used on the local level.
Presidential spokesman Jay Carney said everyone should remember about Wednesday's action by the administration: "It's just a test."
This test is similar to the way local emergency alert system tests are conducted; however, this will be the first nationwide test that is expected to be broadcast simultaneously over all communication service providers: television stations (including digital television, cable, satellite audio and television services) and broadcast radio stations across the U.S. and several U.S. territories.
This nationwide EAS test will help determine the reliability of the system and its effectiveness in notifying the public of emergencies and potential dangers nationally and regionally.