Residents of Washington, D.C., and 19 other nearby metropolitan jurisdictions will receive test text notifications next week as part of an automatic National Wireless Emergency Alerts System test.

The system allows government officials to send emergency alerts to specific geographic areas on cellphones or other mobile devices.

People in the 20 participating jurisdictions will receive the following message on Thursday, April 5: “A test of the District of Columbia Wireless Emergency Alerts System. No action required.” The alert is expected to be accompanied by a loud noise as it displays the message.

Local officials told the Washington Examiner that residents of Northern Virginia, D.C., and Maryland should not be surprised if they receive multiple alerts from nearby areas. For example, someone in the city of Alexandria, Va., could receive another alert from a nearby jurisdiction.

Since 2012 when the system was first implemented, the system has been used 33,000 times to inform the public about weather, missing children, or other critical situations, according to the Federal Communications Commission.

However, local officials say this is the first time a live regional test using the system’s geo-target capabilities has been conducted, and 5.2 million people are expected to receive the test next week.