LOS ANGELES (CBSLA) — A low-pressure system is expected to roll through the Southland late Friday night bringing light rain, mountain snow, and a chance of thunderstorms Saturday.

Rainfall is forecast to begin around midnight Friday and will be over L.A. County by late morning Saturday before making the trek east.

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A cold front will bring wet weather lingering through Saturday with a slight chance of thunderstorms.

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The best chance for showers is projected to begin early Saturday morning with rain amounts staying pretty light with a quarter-inch or less on the coast and valleys, a quarter to half an inch in the foothills and mountains, and a tenth of an inch or less in the desert regions.

Snow levels will begin around 7,000 feet and drop to 5500 feet with a Winter Weather Advisory taking effect at midnight Friday for the San Bernardino County mountains above 6000 feet.

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The storm is expected to exit out of the region by Saturday evening, with dry weather returning Sunday.