"Alerts are rare, but can happen locally, statewide, or nationally". The EAS test is the one you'll see on your cell phone.
The WEA portion of the test commences at 11:18 a.m., and the EAS portion follows at 11:20 a.m.
Experts didn't appear to be too concerned that Trump, known to use his smartphone to blast opponents, berate subordinates and take shots at the news media on Twitter, could abuse WEA.
The tests have drawn a lot of attention on social media in part because of President Donald Trump's propensity for sending tweets to his 55 million followers.
Extreme and Severe Threats: These alerts are used to alert the public to imminent safety threats, and are mostly used for weather warnings.
There are three types of messages sent by WEA.
Unlike the Amber and weather alerts, the presidential alert can't be turned off. They are also typically sent to targeted geographic regions. The alert will also test the reliability of the new "Presidential Alert". It's the fourth national EAS test. The EAS test starts at 2:18PM eastern time.
The WEA test will be broadcast over the course of about 30 minutes and sound the same as an AMBER Alert. "No action is needed" and will display the header "Presidential Alert". The WEA sends a message through your mobile carrier. Critics say a sitting President can technically "hijack" the system to send out a political message to everyone in the USA with a cellphone. Others will not. No action is required.
A group of New Yorkers filed a lawsuit in federal court in NY arguing they should not be compelled to receive the alerts under their right to free speech. Although for Wednesday's testing, the alerts will go out separately - two minutes apart, Warstler said.
When will I get the alert?
It's called the "presidential alert", but the president doesn't actually write it. You can turn your phone off (and leave it off for about half an hour) if you don't want to receive the alert.