Frozen Shad Shortage?

Been to every bait shop between Sacramento and Redding and haven't been able to find any frozen shad for weeks. Ventured into the delta and found some at a gas station freezer section. Was told by a few people that there is a widespread shortage up north. Anyone have any idea if that's true, or where I could find some?

Have you tried any of the bait shops in Rio Vista?  Haps or Rio vista bait and tackle usually has fresh shad when available, and they package and freeze the daily leftovers.