This county page explains why cell and internet service may be unavailable or overloaded in a disaster, and how two-way radios can help neighbors stay in touch. It covers how to choose an FRS radio, how GMRS differs (it needs an FCC license but no test), NOAA weather channels, batteries and charging, and basic operating practice.
It points people who want to go further toward the local amateur radio club, which runs monthly meetings and license classes. It also links to the county’s RACES group.
Volunteers serve through the program, not on their own: register as an emergency worker through the sponsoring agency before you help in an emergency.