ultraviolet index in Eureka (1.5 mi.) | ultraviolet index in Eureka Slough Bridge (2.1 mi.) | ultraviolet index in Mad River Slough (Arcata Bay) (2.7 mi.) | ultraviolet index in Arcata Wharf (3 mi.) | ultraviolet index in Bucksport (4 mi.) | ultraviolet index in North Spit (Humboldt Bay) (5 mi.) | ultraviolet index in Elk River Railroad Bridge (5 mi.) | ultraviolet index in Fields Landing (8 mi.) | ultraviolet index in Hookton Slough (10 mi.) | ultraviolet index in Trinidad Harbor (16 mi.) | ultraviolet index in Shelter Cove (56 mi.)