Rivers swell as wet storm moves through Northern California - InfoNews

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Rivers swell as wet storm moves through Northern California

In this Saturday, April 7, 2018, photo released by the National Park Service, roads in Yosemite Valley have been impacted by high water in Yosemite, Calif. Sections of Northside Drive, Southside Drive, and Sentinel Drive remain closed due to high water in the roadway. Parts of Yosemite National Park remained closed as the Merced River peaked several feet above flood stage through the Yosemite Valley. (National Park Service via AP)
April 07, 2018 - 8:01 PM

SAN FRANCISCO - Up to 6 inches (15 centimetres) of rain fell over two days as a drenching "Pineapple Express" storm swelled rivers and flooded roads in Northern California, forecasters said Saturday.

The heaviest rain was in the northern Sierra and in coastal counties from San Francisco north to Mendocino during a 48-hour period beginning Thursday afternoon, the National Weather Service said. Downtown San Francisco saw nearly 2 inches (5 centimetres) on Friday, making for the fourth-wettest April day since record-keeping began.

The storm tapered off by late Saturday morning but minor flooding continued along the swollen Truckee River near Lake Tahoe. Yosemite National Park's Yosemite Valley remained closed Saturday night, but officials said they would assess whether to reopen midday Sunday, depending on conditions.

No major problems were reported, but runoff from melting snow could add to the chance of rapidly rising streams and rivers, forecasters warned.

The wet weather resulted from a strong "atmospheric river" of subtropical moisture that moved east from Hawaii.

Police rescued a man who became trapped in a rain-swollen drainage channel near Sacramento, where many roads were flooded. The state capital saw more than 1.17 inches (nearly 3 centimetres) of rain on Friday.

Sonoma County officials said there were no major mudslides in areas stripped bare by last fall's wildfires.

San Francisco International Airport reported about 150 cancelled flights because of the weather and others were delayed.

To the north, state officials warned this week that they may have to use the partially rebuilt spillway at Oroville Dam for the first time since repairs began on the badly damaged structure last summer.

The water level in Lake Oroville topped 797 feet (243 metres) on Saturday.

News from © The Associated Press, 2018
The Associated Press

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