California issued its earliest snow advisory in the past 20 years with an alert early this week for residents in the Sierra Nevada, according to the National Weather Service.
From Sunday to Monday, areas of the Sierra Nevada above 8,000 feet can expect some snow as a trough, a region of low atmospheric pressure, brings between a 35% to 65% probability of 2 inches of snow or more.
"We have a very cold draft moving into the area this afternoon and evening, and [it] will move through on Monday," JP Kalb, a forecaster with weather service, told USA TODAY.
The trough will also bring rain to the San Joaquin Valley.
The winter advisory will remain in effect from 11 p.m. local time Sunday night to 5 p.m. Monday.
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