Stronger Storm Expected After Light Rain Prompts Evacuation Orders - NBC Southern California

Stronger Storm Expected After Light Rain Prompts Evacuation Orders

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    NEWSLETTERS

    Storms Cause Flooding in Inland Empire
    Rain falls on Southern California on Jan. 8, 2018 as another stronger storm is expected.

    A flash flood watch remains in effect overnight Tuesday through Thursday night as a big storm is expected to pound Southern California.

    The watch is in effect for Orange, San Bernardino and Riverside counties, the Valleys, the Inland Empire and Santa Ana mountains and foothills.

    Possibly up to an inch of rain is expected to fall an during the most intense showers Tuesday morning and Tuesday afternoon, forecasters said, with up to 4 inches dropping in these areas.

    Officials urge residents to monitor later forecasts and be prepared to take action should if a warning is issued.

    Heavy Lifting Ahead of Burn Zone Rainfall

    [LA] Heavy Lifting Ahead of Burn Zone Rainfall

    Workers are preparing for the worst below the Thomas fire burn area in Ventura County. Patrick Healy reports for the NBC4 News at 11 a.m. on Monday Jan. 8, 2018.

    (Published Monday, Jan. 8, 2018)

    The news comes as light rain fell on the Southland Monday in advance of an anticipated stronger storm expected to soak the region and raise the risk of mudslides in recent wildfire areas, prompting authorities to issue mandatory evacuation orders for select neighborhoods.

    Storm Photos: Send Us Your Weather Images

    Around midday, the Los Angeles County Sheriff's Department imposed mandatory evacuations in the Kagel Canyon, Lopez Canyon and Little Tujunga Canyon areas, all near the area of the recent Creek Fire. It was not immediately clear how many residents were affected by the order.

    An evacuation center was established at Sun Valley Recreation Center, 8133 Vineland Ave. An evacuation center for large animals was opened at Pierce College, 6201 Winnetka Ave. in Woodland Hills. Duarte city officials issued mandatory evacuation orders for about 180 homes near the Fish Fire burn area, beginning at 7 p.m., and a series of streets in that area were closed. Classes were canceled for Tuesday at Valley View Elementary School.

    An evacuation center for Duarte residents was established at the Duarte Community Center, 1600 Huntington Drive. Sandbags were being offered to residents at fire stations across the region to help them protect their homes from flooding. Burbank city officials said voluntary evacuations were being advised on a series of streets near the La Tuna Fire burn area, and an evacuation center was established at McCambridge Recreation Center, 1515 Glenoaks Blvd.

    Monday morning's rain created a wet commute in some areas. About a quarter-inch of rain was expected to fall on flatland areas, and up to an inch in mountain areas by sunset, according to the National Weather Service. The storm will be a potent snowmaker, according to the NWS, which issued winter storm warnings in the mountains above 4,000 feet. Snow was expected to fall above 8,000 feet Monday, then drop to 6,000 feet by Tuesday afternoon and 4,000 feet by Tuesday evening, as a vigorous cold front arrives from the Gulf of Alaska and collides with the wet warm front already in Southern California.

    Midday Update: Storm Lines Up for Tuesday Night Arrival

    [LA] Midday Update: Storm Lines Up for Tuesday Night Arrival

    An update on when and where to expect rain. Shanna Mendiola has the forecast for Monday Jan. 8, 2018.

    (Published Monday, Jan. 8, 2018)

    Blizzard conditions are possible on Interstate 5 over The Grapevine on Tuesday. Weather service computer models indicate Monday's preliminary warm storm and bigger cold storm on Tuesday will both be wetter than first thought. A flash flood watch will be in effect beginning at 10 p.m. and continuing through Tuesday night in most of the Southland.

    "What we're seeing right now is the light prefrontal rain," said NBC4 Meteorologist Fritz Coleman. "It's the atmosphere kinda getting moist, waiting for the heavy event which will happen overnight tonight."

    Wind is also expected to be a major issue. Winds of up to 60 mph could hit Malibu, the Grapevine, Castaic and the Antelope Valley Monday. In the flatlands on Tuesday, some south-facing slopes are forecast to receive five to six inches of rain over the course of a few hours. The storms come after a 10-month dry spell in the Southland following torrential rains in January and February of last year.

    In 2017, downtown Los Angeles experienced its driest March 1 through Dec. 31 since 1878, with only 0.69 of an inch of rainfall, according to the NWS.

    The flatlands of Los Angeles County will get the most rain since last Feb. 17, when downtown got 2.01 inches.

    The expected moisture region-wide will be welcome news for a majority of residents, but not those who live in the Creek, La Tuna, Rye and Skirball burn areas, where there is a strong potential for mud and debris flows.

    It also could result in urban street and underpass, flooding making for a rainy, windy commute on Tuesday.

    An offshore flow is forecast to return late Wednesday with warmer temperatures, dry air, low humidity and gusty winds through Sunday. Saturday could bring sunny skies and highs above 80. More rain may arrive around the following Monday, Jan. 15.

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