No, your neighbor is not that hungry. That "growling" noise you may hear Friday and next Monday is a testing of the San Onofre Nuclear Generating Station's community alert system, according to an alert from the city.
The nuclear plant tests its community alert siren system every three months, officials say in a city email. There are nine sirens in San Juan Capistrano. Each one is tested individually for a few seconds, which is known as a "growl" test.
This test is different from the annual test in October, which calls for sounding off all sirens at the same time for a three-minute duration, according to the city. In an actual emergency, the sounding of the sirens means residents should turn on their radios/televisions for instructions to find out what course of action is required.