The National Weather Service recently upgraded the Winter Storm Watches to Winter Storm Warnings.
2-3 FEET of Snow is forecasted for the Northern Sierra.
The first wave of heavy precipitation is expected to arrive early Thursday Morning and it will be accompanied be associated with warm air advection and a brief PWAT plume/atmospheric river.
The second round of precipitation is expected to be especially heavy for the Lake Tahoe area through Friday night. As of now, it looks like Lake Tahoe area ski resorts will look the best for Friday and Saturday powder turns.
California Winter Storm Warning:
URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 300 AM PST WED FEB 1 2017 ...MOUNTAIN SNOW RETURNS TONIGHT... .SNOW WILL RETURN TO THE NORCAL MOUNTAINS THIS EVENING AS A WINTER STORM MOVES INTO THE REGION. PERIODS OF MODERATE TO HEAVY SNOW WILL BE POSSIBLE ACROSS THE HIGHER ELEVATIONS INTO THE WEEKEND. WESTERN PLUMAS COUNTY/LASSEN PARK- WEST SLOPE NORTHERN SIERRA NEVADA- INCLUDING THE CITIES OF CHESTER, QUINCY, AND BLUE CANYON ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM PST SATURDAY... * TIMING...TONIGHT INTO EARLY SATURDAY * LOCATIONS...INTERSTATE 80 OVER DONNER PASS, HIGHWAY 50 OVER ECHO SUMMIT, HIGHWAY 88 OVER CARSON PASS AND LASSEN VOLCANIC NATIONAL PARK. * MAIN IMPACT...SLIPPERY, SNOW COVERED ROADS WITH LIMITED VISIBILITY DUE TO HEAVY SNOW AND BLOWING SNOW. * SNOW ACCUMULATIONS...3 TO 6 INCHES DOWN TO 5500 FEET WITH 2 TO 3 FEET ALONG THE NORTHERN SIERRA AND SOUTHERN CASCADE CREST.