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An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. 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 cell phones using Cell ...
Here’s what to expect on your devices.
Some wireless providers don't participate in Wireless Emergency Alerts, but all major U.S. wireless providers do and will transmit the test to their subscribers, according to FEMA.
According to the agency, the alert is a “wireless emergency alert” that functions similarly to text messages. They are sent to enabled cell phones in the vicinity of an emergency that requires ...
Similar to emergency calls, devices do not usually need a SIM card to receive alerts. [12] A Wireless Emergency Alert (CMAS), sent using Cell Broadcast by the US National Weather Service. Emergency Alerts in most implementations of Cell Broadcast have distinct alert categories or levels, using a message identifier outlined in 3GPP standards.
Informally, Emergency Alert System is sometimes conflated with its mobile phone counterpart Wireless Emergency Alerts (WEA), a different but related system. However, both the EAS and WEA, among other systems, are coordinated under the Integrated Public Alert and Warning System (IPAWS).
Alerts will begin at 2:20 p.m. ET (1820 GMT) with a text message to cellphones reading, "THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed." Messages will be ...
Architecture of IPAWS. The program is organized and funded by the Federal Emergency Management Agency (FEMA), an agency of the Department of Homeland Security. [4] The system allows for alerts to be originated by Federal, State, local and tribal officials, and subsequently disseminated to the public using a range of national and local alerting systems including EAS, CMAS and NWR. [5]