The National Weather Service has issued the following:
I'm right at 4,000 ft. so it could get interesting.

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST TUESDAY.
SNOW AND RAIN WILL INCREASE TONIGHT AS A STORM SYSTEM APPROACHES THE REGION. SNOW LEVELS NEAR 3000 FEET WILL RISE TO AROUND 4000 FEET LATER TONIGHT AS A WARM FRONT APPROACHES. PERIODS OF HEAVY SNOW ARE EXPECTED TO SPREAD FROM THE SHASTA COUNTY MOUNTAINS AFTER MIDNIGHT...TO THE LASSEN PARK AREA BY 4 AM OR SO. WIND GUSTS TO 55 MPH WILL CREATE AREAS OF REDUCED VISIBILITY IN SNOW AND BLOWING SNOW EARLY TUESDAY MORNING...AND WHITE OUT CONDITIONS ARE LIKELY OVER THE PASSES. SNOW LEVELS WILL FALL AGAIN TO NEAR 3000 FEET AS A COLD FRONT APPROACHES TUESDAY AFTERNOON.
ONE TO TWO FEET OF SNOW WILL FALL IN THE MOUNTAINS OF SHASTA COUNTY BY TUESDAY AFTERNOON. UP TO THREE FEET ARE POSSIBLE IN THE LASSEN PARK AREAS. 6 TO 12 INCHES OF NEW SNOW ARE LIKELY IN QUINCY AND CHESTER...AND OTHER AREAS ABOVE 4000 FEET. SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS LATER TUESDAY AFTERNOON.
IF YOU HAVE PLANS TO TRAVEL IN THE MOUNTAINS OVER THE NEXT FEW DAYS...BE SURE TO CLOSELY MONITOR WEATHER FORECASTS AND CHECK THE LATEST ROAD CONDITIONS. REMEMBER TO CARRY TIRE CHAINS...EXTRA WARM CLOTHING...BLANKETS AND WATER. STAY TUNED TO THE LATEST UPDATES BY LISTENING TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLET.
I'm right at 4,000 ft. so it could get interesting.
