Sacramento, CA – Travel across Northern California’s Sierra Nevada is expected to break down بسرعة starting Friday evening as a powerful storm delivers feet of snow and rapidly lowering snow levels that will overtake major mountain routes.
Road conditions will worsen quickly after 5 p.m. Friday, especially above 4,500 feet, where steady snowfall begins to accumulate. By Saturday afternoon, the storm intensifies, with snowfall rates increasing and snow levels dropping to near 4,000 feet by Sunday. This means areas that initially see only light snow Friday could face significant accumulation and icy roads by the weekend.
According to the National Weather Service in Sacramento, a Winter Storm Warning remains in effect through 11 p.m. Sunday for the West Slope Northern Sierra Nevada and Western Plumas County, including Quincy, Blue Canyon, and Chester. Widespread totals of 1 to 2 feet are expected above 4,500 feet, while the highest elevations could see 3 to 4 feet. Even lower elevations near 4,000 feet may pick up 2 to 4 inches, enough to create slick travel conditions.
Key corridors such as Highway 70 near Quincy and stretches of Interstate 80 near Blue Canyon could become snow-covered and hazardous, particularly during the Saturday afternoon through Sunday window when snowfall is heaviest and visibility is reduced. Gusts up to 50 mph may lead to blowing snow and sudden whiteout conditions, making travel difficult to impossible at times.
Officials warn that the Friday evening commute could be impacted early, but the most dangerous conditions will arrive Saturday into Sunday as snow levels fall and accumulation accelerates. Travelers are urged to check Caltrans road conditions through QuickMap or by dialing 511 before heading into the mountains.
If travel is unavoidable, drivers should carry chains, pack emergency supplies, and prepare for extended delays. Conditions are expected to slowly improve late Sunday night, though lingering snow and road closures could continue into early next week.
