CALIFORNIA – The Sierra Nevada mountains are expected to receive 5 to 10 feet of snow over the next 10 days, as a series of storm systems brings repeated rounds of cold air and strong Pacific moisture into the region. Forecast data shows the heaviest snowfall focused along the higher elevations of the Sierra, with snow totals increasing as multiple systems move through.
This prolonged pattern raises the potential for significant travel disruptions, dangerous mountain conditions, and deep snowpack buildup.
Repeated Storm Systems Drive Extreme Snow Totals
The snowfall forecast is not tied to a single storm. Instead, multiple storm systems are expected to pass over Northern and Central California, each contributing additional snowfall. The map highlights a persistent corridor of heavy snow stretching along the Sierra Nevada, from areas east of Sacramento toward Reno and Carson City. Each system taps into strong moisture sources, allowing snowfall totals to accumulate rapidly over time.
Highest Impacts Expected at Sierra Elevations
The largest snow totals, potentially approaching or exceeding 10 feet, are expected at higher elevations along the Sierra crest. Lower elevations and nearby valleys will see far less accumulation, but mountain passes and resort areas are likely to experience prolonged winter conditions. The sharp gradient shown on the map underscores how elevation plays a key role in snowfall intensity.
Travel and Safety Concerns Grow With Prolonged Snow
Extended periods of heavy mountain snowfall increase the risk of:
- Road closures and chain restrictions
- Avalanche danger
- Limited access to high-elevation communities
- Strain on emergency services
With snowfall spread out over several days, conditions may remain hazardous even between storms, especially in exposed terrain.
Why This Snow Event Stands Out
Snow totals in the 5- to 10-foot range over a relatively short period are significant even for the Sierra Nevada, one of the snowiest regions in the country. The combination of cold air and repeated moisture surges is the key driver behind the extreme forecast.
Residents, travelers, and outdoor enthusiasts are encouraged to closely monitor forecasts and prepare for rapidly changing conditions in the mountains. For continued updates on major weather events and regional impacts across the United States, follow ongoing coverage from NapervilleLocal.com…