The federal government said it will conduct on Wednesday afternoon a nationwide test of its Emergency Alert System and Wireless Emergency Alerts.
Mandatory Credit:	Klaus Vedfelt/Digital Vision/Getty Images

The federal government said it will conduct on Wednesday afternoon a nationwide test of its Emergency Alert System and Wireless Emergency Alerts.
Mandatory Credit: Klaus Vedfelt/Digital Vision/Getty Images

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Why everyone’s phone will alarm at 2:20 pm ET on Wednesday

If you hear a screeching alert go off on your cell phone – and everyone else’s cell phone – this Wednesday at 2:20 pm ET, don’t panic.