Opinion: California’s Variable Water Supply Needs More Than Rainfall

Downpours in October and December, along with record snowfall in the Sierra Nevada, alleviated dry conditions statewide and moved California out of the U.S. Drought Monitor’s “exceptional” drought category. The state is still mandating conservation and curtailing water diversions, however, and water agencies have declared water shortage emergencies and called for mandated water use restrictions.

Why is most of California still in an “extreme” or “severe” drought?