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    Coastal Rain, Mountain Snow For California Today

    By Brian Edwards, Meteorologist
    January 6, 2013; 11:32 AM ET
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    Play video Weather for the Southwest in detailed in the above AccuWeather.com video.

    A potent disturbance will continue to drop through California today, bringing rain to the coast and the valleys while snow accumulates in the mountains and on the Grapevine.

    The real trouble will occur across central and southern California as the disturbance drags a pool of cold air inland. This pool of cold air will cause snow levels to drop to between 3,000 and 3,500 feet in the Sierra Nevada Range.

    Snow accumulations on the order of 3 to 6 inches are expected by this evening.

    Motorists will face difficult travel along Interstate 80 through Donner Pass as the snow comes down hard for a few hours.

    California Department of Transportation reports that chains are required on all vehicles, with four-wheel-drive vehicles with snow tires on all four wheels being the exception, traveling on I-80 from Kingvale to Donner Lake Interchange.

    Rain and snow will continue to push farther south into Southern California through tonight, bringing a little rain to Los Angeles and San Diego. Rainfall totals across this region will average around one-quarter of an inch, which could lead to some slow travel along the Interstates.

    Snow will fall in the mountains of Los Angeles and Ventura counties with snow levels dropping to about 4,000 feet.

    This could cause dangerous travel conditions to develop along the Grapevine (Interstate 5).

    Snow accumulations above 4,000 feet in these Southern California mountains are expected to average 1-3 inches with the potential for 6 inches above 5,000 feet.

    In addition, gusty winds will howl out of the northwest later today throughout the Interstate 5 corridor and below passes and canyons. Wind gusts to 40-50 mph are possible and could create additional travel nightmares tonight.

    This disturbance should finally shift south and east of California by Monday morning with much drier weather moving into the state behind it.

    Another bout of stormy weather and a surge of cooler temperatures is likely toward the end of next week. Keep checking back with AccuWeather.com over the next few days for more information on potential travel delays across central and southern California.

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