Emergency Alert System
The Emergency Alert System (EAS) is one of the many means used by alerting authorities to send warnings via broadcast, cable, satellite and wire line communications pathways. The EAS is also used when all other means of alerting the public are unavailable, providing an added layer of resiliency to the suite of available emergency communication tools.
NOAA All Hazard Weather Radio
The NOAA Weather Radio (NWR) system is an "All Hazards" radio network, making it your single source for comprehensive weather and all hazard emergency information. In conjunction with federal, state and local emergency managers and other public officials, NWR also broadcasts warning and post-event information for all types of hazards, including natural (such as earthquakes or avalanches), environmental (such as chemical releases or oil spills) and public safety (such as AMBER alerts or 911 Telephone outages).
Commercial Mobile Alert System
Commercial Mobile Alert System (CMAS) is a partnership between FEMA, the Federal Communications Commission (FCC) and wireless carriers to enhance public safety. CMAS allows public safety authorities to use FEMA’s IPAWS Open Platform for Emergency Networks (IPAWS-OPEN) to send geographically targeted, text-like Wireless Emergency Alerts (WEA) to the public.
WEAs will relay presidential, AMBER and imminent threat alerts to mobile phones using cellular broadcast technology that will not get backlogged during times of emergency when wireless voice and data services are highly congested.
Integrated Public Alert and Warning System
FEMA’s Integrated Public Alert and Warning System (IPAWS) program provides an internet-based capability for federal, state, territorial, tribal and local authorities to use in order to issue critical public alerts and warnings.
IPAWS improves alert and warning capabilities by allowing alerting authorities to deliver their message from a single portal to multiple communication pathways. Two of these pathways are The Emergency Alert System (EAS) and Commercial Mobile Alert System (CMAS).