This definition appears very frequently
and is found in the following Acronym Finder categories:
See other definitions of CEM
Samples in periodicals archive:
Effective immediately, WeatherBug will now visually and audibly notify PC users about any Civil Emergency Message (CEM) alerts that are issued by federal, state and/or local officials, not just those related to weather emergencies.
CAP is an integral part of relaying civil emergency messages on the NOAA Weather Radio All Hazards and other NWS dissemination systems," said Mark Paese, Director, Operations Division for NOAA's National Weather Service.
The EAS stations will broadcast a civil emergency message to all media outlets to check the website for the details of the abduction.