Presidential Alert – THIS IS A TEST of the National Wireless Emergency Alert System
The official Emergency Alert from the President (President Trump) was sent out at 1:18pm CST time. The President did not send this message himself, fortunately. On iOS devices, the message displayed is below.
THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed.
The alert would have appeared on your iPhone locked screen until you acknowledged it. There was nothing fancy about the alert, and is very similar to the iPhone Amber alert.