By Scott Sonner RENO — Dangerous winds in the Sierra toppled a semi-trailer truck, downed power lines and closed a stretch of highway in Southern California on Monday ahead of a winter storm expected to bring up to 2 feet (60 centimeters) of snow to mountain tops around Lake Tahoe. U.S. Highway 6 was closed due to downed power lines south of Yosemite National Park near … [Read more...]