Unlike outdoor sirens, all-hazards radios save lives by alerting people
who are indoors when severe weather approaches. They can also alert
people in homes, schools and businesses to other types of emergencies.
These radios provide constant, useful and up-to-date weather
information. They are equipped with a special alarm tone that will sound
an alert and give immediate information in a life-threatening
During an emergency, the National Weather Service will interrupt routine
weather radio programming and broadcast a special tone that activates
weather radios, by county, in the listening areas.While they are
primarily used for severe weather alerts, authorities can also use these
radios to issue warnings about other types of hazards, such as chemical
spills or biological hazards. The hearing and visually impaired can
also get these warnings by connecting weather radios to other
attention-getting devices such as strobe lights, pagers, bed-shakers,
personal computers and text printers.