US will conduct nationwide test of Emergency Alert System across ALL cellphones, TVs and radios at 2pm on October 4th

The United States will be conducting a nationwide test of the Emergency Alert System and Wireless Emergency Alerts across all wireless and electronic devices in the fall. 

The purpose of the test is to warn the public about emergencies, particularly those on the national scale, and to ensure that the systems that are in place continue to be effective.

The Federal Communications Commission (FCC) and FEMA will carry out the test that will happen in two parts - from the Wireless Emergency Alerts (WEA) and from the Emergency Alert System (EAS).