'Go Now': Mandatory Evacuations Ordered in Riverside County as Storm Approaches - NBC Southern California

'Go Now': Mandatory Evacuations Ordered in Riverside County as Storm Approaches

Authorities said residents in these area "SHOULD GO NOW," saying Tuesday was the safest time to leave.



    Residence Prepare for Potential Mudslides Ahead of Storm

    After battling wildfires across the area, residents in Orange County, Malibu and across Southern California prepare for a storm that may cause mudslides in recently burned areas. Tony Shin, Ted Chen and Vikki Vargas report for NBC4 News at 4 p.m. on Nov. 28, 2018. (Published Wednesday, Nov. 28, 2018)

    Mandatory evacuations were underway and some officers were set to go door-to-door to warn residents in Riverside County of a pending storm approaching Southern California Wednesday evening. 

    Authorities had already asked residents near the Holy Fire burn scar area to voluntarily evacuate Tuesday, before the threat of debris flow worsened. 

    Storm Photos: Send Us Your Weather Images

    The brunt of the storm is expected to pack a wallop Thursday morning.

    First Alert Forecast: Rain Coming to Los Angeles

    [LA] First Alert Forecast: Rain Coming to Los Angeles

    Rain is coming!

    Look for increasing clouds and a cooler day in the 60s and low 70s ahead of the rain tonight.

    We could be seeing some light showers for the evening commute tonight, but the first round of significant rain arrives overnight and tomorrow morning, followed by a second round for the evening.

    Updated timing as of 5am this morning:

    4PM-11PM: Early Shower Chances, all the showers will be brief and light in intensity. Enough to maybe wet the roads, but not cause any issues.

    11PM: First round of rain reaches Santa Barbara county, rain starts up in most of the mountains.

    1AM: Ventura County coastline


    4-7AM: Heaviest begins moving into Ventura and LA County…this is also the highest threat of exceeding USGS Mudslide thresholds over the Woolsey & Hill scars (rain there from 10pm tonight -10 am tomorrow)

    7-10AM: Heaviest rain moving through Orange County and Inland Empire, showers breaking up over Ventura County and portions of LA County…this is also the highest threat of exceeding USGS thresholds over the Holy, Canyon 1, Canyon 2, Valley, and Cranston scars.

    Midday: Relatively quiet, will stay cloudy with sprinkles and occasional showers.

    4-6PM: Second round of rain moves into the region, snow levels start falling (really high initially, so no snow in Big Bear, but snow will start to fall there by midnight).

    11PM: Shower activity start to wrap up.

    (From 11PM Wed – 11PM Thursday, it will be almost continuous rainfall in the mountains, with maybe a bit of a break around midday.)

    Friday should be dry for the most part with another chance of rain moving in Saturday.

    (Published Wednesday, Nov. 28, 2018)

    "It's really going to pick up as we go to bed tonight and then into tomorrow," said NBC4 forecaster Shanna Mendiola. "You'll have a (Thursday) morning commute that's going to be soggy with a break in between, then another round of rain in the afternoon." 

    Rain totals will range from .75 inch to 2 inches. Three inches are possible in some mountain communities.

    The following areas were under mandatory evacuation Wednesday at 3 p.m.:


    • Amorose
    • Alberhill
    • Glen Ivy A
    • Glen Eden
    • Grace
    • Horsethief A
    • Laguna A
    • Matri
    • McVicker A
    • Rice
    • Withrow A


    "People in these zones MUST GO NOW," a news release read.

    Authorities also advised residents check the city's maps to see which zones were being evacuated. 

    "Now is the time to grab your documents. Now is the time to get your spare medication, extra water, and make arrangements for wherever you're going to stay whether it's a local hotel or with a family that's outside of the area," said Riverside County Fire Capt. Fernando Herrera.

    A reception center was set up at Temescal Canyon High School, located at 28755 El Toro Rd. in Lake Elsinore.

    Debris flows were not expected in the areas near the Cranston Fire burn scar.

    Residents near the Woolsey, La Tuna Canyon, Creek and Skirball fire areas were advised to be on alert for potential evacuations, though none were in place Wednesday afternoon. The Los Angeles County Fire Department and The Los Angeles County Sheriff’s Department have staffed additional resources in the area as well as a precaution.

    CalTrans was also warning drivers to be on alert in Los Angeles and Ventura counties as rocks, debris and mud may spill onto roadways. 

    The city of Beverly Hills was providing sandbags to residents at 342 N Foothill during business hours.

    NBC4's Fritz Coleman said the heaviest rain will fall between 4 a.m. and 7 a.m. Thursday in Orange, Riverside, and San Bernardino counties.

    Everyone can expect a soggy morning commute Thursday morning.

    Even moderate rainfall can produce flooding in burn areas because they lack the vegetation that would normally absorb water. Fire-scarred hillsides are left with a repellent layer that blocks water absorption. If it's not absorbed by the soil, rainwater simply washes down the hillside, sometimes with enough force to move boulders, tear out trees and damage buildings and bridges.

    The potential for destruction was illustrated in January when an early morning downpour in the Thomas Fire burn area triggered a mudflow that killed 21 people in the Santa Barbara County community of Montecito. 

    Neighborhoods Under Voluntary Evacuation as Rain Approaches

    [LA] Neighborhoods Under Voluntary Evacuation as Rain Approaches

    After the Holy Fire burned in Lake Elsinore in August, authorities are asking residents to evaucate as rain appraoches Southern California. Tony Shin reports for the NBC4 News at 6 Nov. 27, 2018.

    (Published Tuesday, Nov. 27, 2018)

    NBC4's Jonathan Lloyd contributed to this report.

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