The National Weather Service has extended the winter storm warning for Lake County until tomorrow at 6 a.m. due to ongoing snow, hail, and dropping temperatures. CHP and Caltrans are monitoring trouble spots, Hwy 175 over Hopland, Hwy 29 at Glasgow Grade, and Cobb, Â concerned about snow reaching lake level. Snow is forecast for today and Thursday morning, clearing Thursday night. Rain is expected Friday night through Tuesday.