A wintry storm arriving three weeks into spring is delivering widespread rain and snow to parts of Nevada and Northern California. The storm brought howling winds to the top of the Sierra Nevada on Thursday as it headed in from the Pacific Ocean. According to the National Weather Service, gusts up to 115 mph ripped across a few ridges in the Lake Tahoe area, while blasts up to 55 mph hit the Tahoe Basin and some areas north and south. Forecasters upgraded a winter storm watch to a warning for heavy, wet snow, effective from midnight Thursday to 5 a.m. Saturday along the eastern Sierra. A flood watch is in effect for the Reno area through Saturday morning.