IPAWS - Which stands for the Integrated Public Alert and Warning System, has had changes to adapt to new computer/ internet and smartphone technology.
Here is some key points I found out from FEMA (Federal Emergency Management Agency)
- Timely Alert and Warning to American People in the preservation of life and property.
- Provide integrated services and capabilities to local, state, and federal authorities that enable them to alert and warn their respective communities via multiple communications methods.
One of the key componets of IPAWS is Alert Origination, which is;
Alert origination tools are software products used by emergency managers, public safety officials, and other alerting authorities to create and send critical life saving messages to the public. As commercial software vendors incorporate CAP-conformant alerting into existing or newly developed products, these systems can be authorized to deliver CAP-compliant messages through the IPAWS OPEN Aggregator to reach the public through radio, TV, cellular mobile devices, Internet-based communications, and other CAP-compliant alerting systems.
Here is a video;
Information source fema.gov