Wireless Emergency Alerts

Mobile device emergency announcement system in the United States / From Wikipedia, the free encyclopedia

Wireless Emergency Alerts (WEA, formerly known as the Commercial Mobile Alert System (CMAS), and prior to that as the Personal Localized Alerting Network (PLAN)),[1] is an alerting network in the United States designed to disseminate emergency alerts to mobile devices such as cell phones and pagers. Organizations are able to disseminate and coordinate emergency alerts and warning messages through WEA and other public systems by means of the Integrated Public Alert and Warning System.[2]

An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area.