UPDATED 3 p.m. Monday. The "Granite Curtain" descended in the High Sierra Monday, when snow, wind and general "inclement weather" forced Caltrans to close both Tioga Pass (S.R. 120) and Sonora Pass (S.R. 108).
Forecasters predicted four to eight 4 to 8 inches of snow are possible in the Sierra above 8,500 feet through Tuesday morning.
Snow levels near 11,000 feet will drop to near 9,000 feet later today and fall near 8,000 feet late tonight.
Snow may affect the higher passes along U.S. 395 tonight in Mono county but accumulations are unlikely to occur.