Kraig Pakulski / Monday, January 19, 2026 / Categories: Regions, California; Santa Barbara County Early Warning System Sirens- Low Volume Quarterly Growl Test January 20 & 21 On Tuesday and Wednesday, January 20 and 21, the Early Warning System sirens located in the Diablo Canyon Emergency Planning Zone (EPZ) will undergo regularly-scheduled low-volume growl tests. Each siren […] The post Early Warning System Sirens- Low Volume Quarterly Growl Test January 20 & 21 appeared first on edhat. Previous Article Progress Made in ADA Ramp Project at Old Mission Santa Barbara Next Article Office of Traffic Safety Awards $30,796 Grant to MOVE and SBPD Print 21 Rate this article: No rating Please login or register to post comments.