Emergency alert radio signals are provided by the National Oceanographic and Atmospheric Administration’s (NOAA) National Weather Service (NWS). These radio signals are not accessible over AM/FM radios but are received by NOAA Weather Radios. Weather alert radios can be used to alert the public of other serious emergencies, not just weather events.

NOAA Weather radios can be purchased as most electronic stores and online.

The National Weather Service provides additional information on NOAA Weather Radios as well as the weather radio channel frequency listings by County in California.