Today, October 4 at 2:20 p.m., there will be a nationwide emergency alert test on cell phones, wireless devices, radios, and TVs. You will receive a message alert on your devices.
This is a standard test that occurs at least once every three years. No action is needed, please do not call 911 or any other emergency service.
Again, this is a test of the nationwide emergency alert system.
Info & FAQs can be found here.