On October 3, 2018 starting at 2:18 p.m. (EDT), US wireless carriers will send an alert from FEMA to all Wireless Emergency Alert (WEA) enabled wireless phones across the country.
The message will read, “Presidential Alert: THIS IS A TEST of the National Wireless Emergency Alert system. No action required.”
The test will take approximately 30 minutes. Wireless phone users cannot opt out of this alert, even if they have opted out of others, such as Amber alerts.