California’s Sierra Nevada mountains are under a winter storm warning, signaling a major return of severe winter weather with forecasts predicting 5 to 10 feet of snow along the crest and western slopes over the next 10 days. This heavy snowfall comes as a much-needed boost to the region’s below-average snowpack, potentially enhancing water supplies while posing risks for travel and safety in affected areas.

The National Weather Service has issued a winter storm warning for parts of the central Sierra Nevada above 6,000 feet, with additional winter weather advisories in place for surrounding regions including the Tahoe Basin. These alerts highlight the potential for hazardous conditions, including gusty winds up to 70 mph and significant snow accumulation, particularly along the California-Nevada border near Truckee and Lake Tahoe.
Winter Storm: 5 Foot of snow could hit mountain communities
The active pattern begins with a storm arriving on Tuesday, February 10, expected to deliver 10 to 20 inches of snow above 7,000 feet and lighter amounts near lake level. Mountain communities such as Tahoe City, Truckee, South Lake Tahoe, and Mammoth Lakes could accumulate 2 to 5 feet of new snow by February 20. Higher elevations at ski resorts like Palisades Tahoe may see at least 6 feet during this period.
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More Winter Storm behind Tuesday’s impact
A stronger system around February 14 is forecasted to bring 2 to 3 feet of snow to the Sierra crest and major passes, potentially escalating to more severe winter storm warnings as the most impactful event since early January. Snow levels are expected to drop significantly, with super-light powder possible over several days.
This shift follows a dry January and early February, with the snowpack currently at about 50% of average across the Sierra. The U.S. Drought Monitor indicates severe snow drought conditions in nearby areas, making this snowfall critical for California’s water resources, which rely on the Sierra snowpack for about a third of the state’s supply.
The next 2 weeks are snow filled
Meteorologists are emphasizing the importance of these storms: “Huge snow on the way for California Sierra—up to 10 feet in the next 2 weeks!” shared expert Jeff Berardelli. However, the winter storm warning underscores risks such as avalanches, road closures on highways like I-80, and power outages in mountain communities.
Residents and travelers should heed the weather winter storm warning advisories, preparing for chain controls, possible highway closures, and hazardous driving conditions. Ski enthusiasts can look forward to improved conditions, with resorts like Sierra-at-Tahoe anticipating 11 inches over the next 7 days.
The NOAA’s outlook supports continued below-average temperatures and above-average precipitation through mid-February, reviving winter across the West. While Southern California stays mostly dry, the split scenario highlights the varied impacts of this weather system.
For the latest on the Sierra Nevada weather winter storm warning, monitor updates from the National Weather Service.