Sierra Nevada Winter Storm Disrupts Travel, Triggers Avalanche Warnings

Sierra Nevada Winter Storm Disrupts Travel, Triggers Avalanche Warnings...

A powerful late-season winter storm is battering California's Sierra Nevada mountains today, causing dangerous driving conditions and prompting avalanche warnings. The National Weather Service reports up to 3 feet of snow in higher elevations, with wind gusts exceeding 50 mph creating near-whiteout conditions.

The storm is trending nationally as it impacts major transportation routes during peak spring travel season. Interstate 80 remains closed between Colfax and the Nevada state line, stranding hundreds of travelers. Chain requirements are in effect for all mountain passes, including Highway 50 and Highway 88.

Avalanche danger remains high across the Tahoe Basin, according to the Sierra Avalanche Center. Backcountry access points have been closed in multiple locations after several small natural avalanches were reported overnight. Ski resorts including Palisades Tahoe and Heavenly have delayed openings due to safety concerns.

Pacific Gas & Electric reports over 12,000 customers without power across the Sierra foothills as of noon local time. Crews are working to restore service, but officials warn outages could persist through Thursday in remote areas. Emergency shelters have opened in Truckee and South Lake Tahoe.

The storm comes during what had been an unusually dry winter for California. State water officials note the precipitation will help replenish Sierra snowpack, which stood at just 68% of average before this system arrived. However, the rapid accumulation is creating immediate hazards.

Meteorologists expect the heaviest snowfall to continue through Wednesday evening before tapering off Thursday morning. Travelers are advised to avoid mountain routes until conditions improve. The California Highway Patrol has responded to over 40 weather-related accidents since the storm began Tuesday night.

This weather event is drawing particular attention because it follows a prolonged dry spell in the West and coincides with spring break travel. Social media platforms show viral videos of cars sliding off icy roads and dramatic footage of avalanche control work along highway corridors.