Flowing Mud, Falling Rocks Close Roads as Storm Series Continues Pummeling SoCal

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Periods of heavy rain prompted road closures across Southern California on Monday, when two storms were expected to drop between 0.5 to 1 inch of precipitation on the coasts and valleys.

A flash flood warning issued for some Woolsey Fire burn areas—including Thousand Oaks, Agoura Hills and Oak Park—was lifted at 12:15 p.m.

Showers are likely to continue off and on until Wednesday morning, when drier weather should move into the region, according to the Weather Service.

Road Closures

Caltrans was forced to shut down Pacific Coast Highway from Broad Beach Road in Malibu to Las Posas Road in Ventura County Monday morning due to debris in the roadway. Motorists were asked to use alternate routes and be cautious of possible mudslides. The roadway was opened about 1:45 p.m.

Caltrans said as of 1:50 p.m., the following routes are closed until further notice:

Trabuco Canyon Road in Rancho Santa Margarita was closed Monday afternoon due to a mass amount of mud and debris flowing down canyon hillsides there, Orange County officials said. It was unclear when it would reopen.

Aerial video showed the powerful flow was knocking down berms and inundating the area. Law enforcement was on scene.

Also on Monday, Highway 150 was shut down through Ojai after a rockslide involving large boulders blocked the road. Motorist would have to reroute through Santa Paula to access northern Ojai, officials said.

A mudslide Sunday night prompted officials to close Topanga Canyon Boulevard from Grandview Drive to Pacific Coast Highway. It reopened Sunday afternoon, but authorities urged drivers to be cautious while using it.

A construction crew working on Yerba Buena Road Saturday was left without a front-loader after a hole in the street opened up, dropping the vehicle several feet down.

A front-loader fell into a hole on Yerba Buena Road on Feb. 2, 2019. (Credit: KTLA)

A front-loader fell into a hole on Yerba Buena Road on Feb. 2, 2019. (Credit: KTLA)

The man working the front-loader was not inside when it crashed through the street.

Snow levels dropping

Temperatures were forecast to drop below normal early this week leading to plummeting snow levels.

Weather officials expected snow levels, which are currently at 5,000 to 6,000 feet, to drop to  3,500 to 4,500 feet by Tuesday morning. Snow levels may be as low as 2,500 feet by Wednesday, according to the Weather Service.

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