Storm Prompts Evacuation Orders in O.C.; Mudslide Fears Continue in Malibu

Storm Prompts Evacuation Orders in O.C.; Mudslide Fears Continue in Malibu

LOS ANGELES (CNS) - Steady rain doused the Southland today amid strong winds and mandatory evacuation orders in parts of Orange and Riverside counties prompted by fears of shallow mudslides, minor debris flows and flash- flooding in recent wildfire burn areas.

The brunt of the storm lashed the area, particularly in Orange County and in southwestern Los Angeles County, from mid to late morning. The downpours prompted the National Weather Service to issue a flash flood warning for the recent 23,000-acre Holy Fire burn area in Orange and Riverside counties at 10 a.m. The warning, however, was allowed to expire at noon as rainfall lightened.

“Light rainfall continues but the threat for debris flows and flash flooding has decreased,” according to a midday statement from the NWS. “Additional showers will again pose the threat for flash flooding or debris flows later this afternoon and evening. Water will continue to flow in the dry creeks and debris is reported on roadways in Trabuco and Temescal canyons.”

Rain was expected to continue off and on throughout the day.

A voluntary evacuation order that had been in place in the Trabuco Creek area of Orange County was upgraded to a mandatory order around mid- morning Thursday. Residents of Rose Canyon, Mystic Oaks and El Cariso remained under a voluntary evacuation order.

“Hard road closures” were in place on Trabuco Canyon Road at Rose Canyon and Robinson Ranch Road, according to the Orange County Sheriff's Department.

The heavy rains created hazardous conditions across the area, prompting several big rigs to jackknife on Southland freeways and leading to a torturous morning commute.

The storm also proved dangerous for people venturing too close to flowing water. Around 10:30 a.m., Los Angeles Fire Department crews used a helicopter to hoist a man out of the Los Angeles River. The 50-year-old man had been clinging to a tree in the river south of Colorado Boulevard in the Atwater Village area. Fire officials said the water in the river was flowing quickly, leaving the man stranded.

A short time later in Anaheim, a man was spotted clinging to debris in a flood-control channel near the 1900 block of West Greenleaf Avenue. A swift-water rescue team was dispatched to the scene and pulled the man to safety.

Forecasters warned earlier that the storm could prompt flooding in areas including Malibu, Agoura Hills, Woodland Hills, Calabasas, Westlake Village, Malibu Creek State Park and Oak Park -- many of them impacted by the recent Woolsey Fire.

There were sporadic reports of rocks falling on canyon and mountain roads in the Woolsey Fire area, but no major debris slides had been reported in the area as of midday.

Other areas potentially subject to flooding, according to the NWS, were Long Beach, Acton, Wrightwood, Glendora, Alhambra, West Covina, Mount Wilson and Whittier. Parts of the Long Beach City Hall lobby flooded, prompting the closure of some offices.

Most areas were expected to receive between a half-inch and two inches of rain, although three inches could fall at higher elevations and foothills by the time the storm fully passes.

A flash flood watch will be in effect for the Santa Ana mountains and foothills and inland Orange County throughout the day Thursday and into early Friday morning.

The storm originating in the Gulf of Alaska began moving across California's Central Coast Wednesday afternoon and into Ventura County, reaching Los Angeles County in the evening strengthened by moisture from the Eastern Pacific.

The storm generated strong, gusty winds, prompting the NWS to issue a wind advisory on Santa Catalina Island; the San Gabriel and Santa Monica mountains; the Antelope, San Fernando, Santa Clarita, Pomona and San Gabriel valleys; L.A. County Beach cities, metropolitan Los Angeles, including Downtown L.A., and the Hollywood Hills.

In the mountains and the Antelope Valley, the wind was forecast to blow at 20-30 mph, with 50-mph gusts. In the other L.A County areas subject to a wind advisory, winds of 15-30 mph with 40-mph gusts were expected. The advisory, indicating winds or gusts of at least 35 mph, was scheduled to be in effect until midnight.

“Gusty winds will make driving difficult, especially for high profile vehicles,” warned the NWS in a statement.

Ahead of the storm, residents made preparations in Malibu, much of which was devastated by the Woolsey Fire this month. In Orange and Riverside counties, residents near the Holy Fire burn area were being urged to evacuate before the rain began falling. Mandatory evacuation orders were issued late Wednesday afternoon for some areas of Lake Elsinore in Riverside County.

“All Malibu residents are urged to prepare for potential flooding, mudslides, power outages and evacuations,” the city said in a statement Tuesday. But those preparations must not involve removing debris, which contains hazardous materials. No debris removal from burned properties is allowed until inspections by state and county health officials have been completed.

The Los Angeles County fire and sheriff's departments both deployed additional staffing into the burn area in light of the threat of potentially damaging flooding. Officials with both agencies stressed the need for residents to adhere to whatever evacuation orders are issued.

“Evacuation orders should not be taken lightly and are ordered because there is a threat to life and property,” according to a joint statement from the agencies.

Along the coast, a high surf warning is scheduled to be in force until 10 a.m. Friday. The NWS said surf of 10 to 18 feet with sets of up to 20 feet would batter the shore, and a second, larger swell would generate surf of 20-24 feet later Thursday morning through Friday morning. The surf will lower to 10-15 feet Friday afternoon and evening.

In Orange County, where surf of 5-10 feet was pounding the shore this morning, a high surf advisory will be in effect until 10 p.m. Friday, after which the surf will gradually subside, forecasters said.

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