The first significant storm to hit Northern California in 14 months produced impressive amounts of rain and snow over the weekend, including more than 2 inches of rain in downtown San Francisco, according to National Weather Service forecasters.
But they cautioned that it would take weeks of similar storms to end the state's immediate drought worries. A winter storm warning that was not due to expire until early today remained in effect in the greater Lake Tahoe region, where estimates indicated the lake itself had received 13.5 billion gallons of water in a 24-hour period that ended Sunday morning, meteorologist Scott McGuire said from Reno.
Parts of the North Bay saw sizable amounts of rain along with flash-flood warnings.
The weather caused nearly 100 flights to be canceled at San Francisco International Airport on Sunday, a duty manager said. Flights that had not been canceled ran between an hour and 90 minutes behind schedule, the manager said.
The storm, powered by a warm, moisture-packed system from the Pacific Ocean known as a Pineapple Express, was expected to bring another 8 inches of rain and snow to the Lake Tahoe area on Sunday, but less than an inch more rain to the Bay Area before it moved east and ended overnight. Forecasts for the week showed a possibility of rain returning to the northern part of the state Wednesday.