Ready.gov is a national public service advertising (PSA) campaign designed to educate and empower Americans to prepare for and respond to emergencies including natural and man-made disasters. The goal of the campaign is to get the public involved and ultimately to increase the level of basic preparedness across the nation.
Additional information can be found on the American Red Cross website:
Citizen Alerting Systems
Clicking on your city/county of residence to sign up for your local alerting system.