Department of Water Resources

California Overestimates Water Supply by Ignoring Climate Change

California Overestimates Water Supply by Ignoring Climate Change

The Department of Water Resources significantly overestimated the state water supply in 2021 because of an error to take into account severe drought due to climate change, the California State Auditor said in a report Thursday. The agency has relied on historical climate data when developing its forecasts, instead of taking into account new methods that better account for extreme conditions, the report said. 

Record California snowpack bounty poses renewed flood risks

Record California snowpack bounty poses renewed flood risks

California's recent spate of epic Pacific storms has blanketed the Sierra Nevada range in a snowpack at or above record levels, state water resource officials said on Monday at a measuring station where less than 3 inches was documented last April. The bounty of mountain snow, on which California has long relied as a critical natural storehouse of fresh water during dry weather, comes as welcome relief after three years of record drought that had still gripped the state a few months ago.