California Weather Update: Winter Storm Warning Brings Up to 12 Inches of Sierra Nevada Snow
A fresh blast of winter weather is sweeping across California’s mountain regions, with a Winter Storm Warning now in effect for the Sierra Nevada. Forecasters say the system will bring heavy snow, strong winds, and dangerous travel conditions, especially at elevations above 9,000 feet.
Storm Expected to Deliver Up to a Foot of Snow
The storm began pushing into the region early Thursday and is expected to intensify through the day. Weather officials estimate that 9 to 12 inches of snow will fall in high-elevation zones, with the heaviest accumulation on ridges and exposed peaks.
Mountain communities and travelers heading toward Yosemite, Mammoth, or Mono County should be prepared for rapidly changing conditions, including sudden whiteouts and icy roads.
Travel Impacts and Safety Concerns
Transportation officials warn that travel through high passes may become extremely difficult. Blowing snow and gusty winds will reduce visibility, creating hazardous driving conditions even for experienced mountain drivers.
Key concerns include:
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Snow-packed roads and freezing surfaces
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Strong winds causing drifting snow
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Delays or closures on mountain routes
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Increased danger for hikers and backcountry travelers
Authorities are urging drivers to carry chains, slow down, and avoid non-essential travel into high terrain during the peak of the storm.
What This Means for California
Although the storm presents challenges, early-season snowfall plays an important role in building the state’s snowpack — a critical source of water during the warmer months. This system marks one of the first significant winter events of the season, reminding residents that winter weather can arrive quickly and with force.
Communities in lower elevations may see rain and colder temperatures, but the most intense impacts will remain confined to the high country.
Outlook for the Weekend
The storm is expected to ease by Friday evening, with scattered snow showers lingering into Saturday. As skies clear, overnight temperatures may drop sharply, leading to icy spots on roadways and frozen surfaces in the mountains.
Another round of unsettled weather may develop early next week, but forecasters will issue updates as confidence increases.
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