California Faces New Storm Threat Amidst Record Snowfall

California is bracing for a new storm system that is expected to bring significant rainfall and heavy mountain snow, particularly to Northern California. This follows a series of powerful low-pressure systems that have already delivered over 90 inches of snow in the Sierra Nevada since October 2025. The upcoming storm, forecasted to arrive between Sunday and Tuesday, will bring additional precipitation, with rainfall totals potentially exceeding 5-7 inches in some areas of Northern California and Southern Oregon. The warmer temperatures associated with this system are likely to lead to rain falling on existing snowpack, increasing the risk of flooding as the snow melts.

Heavy Rain & Snow Across The WestCalifornia faces a new storm threat Sunday, adding to staggering snowfall totals

The Sierra Nevada has experienced an exceptionally wet season, with recent storms contributing to staggering snowfall totals. In the past week alone, the Central Sierra Snow Lab reported 92.5 inches of snow, with some areas receiving nearly 8 feet. This excessive snowfall has resulted in dangerous conditions, including deadly avalanches and multiple road closures, notably along Interstate 80 and Donner Pass. As the new storm approaches, winter storm warnings and advisories remain in effect across the Northwest, with concerns about avalanche risks persisting.

California faces a new storm threat Sunday, adding to staggering snowfall totalsHeavy Rain & Snow Across The West

The heavy snowfall is crucial for California's water supply, as the snowpack will gradually melt during the spring and summer months, replenishing streams and rivers. Currently, no part of California is experiencing drought conditions, a significant improvement attributed to the extensive storms over the past winter. However, experts caution that soil drought may return during the hotter months later in 2026, although the state is expected to have sufficient water resources through at least the end of the year.

California faces a new storm threat Sunday, adding to staggering snowfall totalsHeavy Rain & Snow Across The West

AccuWeather's California Expert Ken Clark emphasized the importance of the current storm patterns, noting that the atmospheric river phenomenon is critical in determining the intensity and distribution of rainfall and snowfall. The National Weather Service has issued warnings for potential flooding and avalanche risks, urging residents in affected areas to remain vigilant.

Heavy Rain & Snow Across The West

While the storms have alleviated drought conditions, some experts warn about the potential for flooding and infrastructure strain due to rapid snowmelt and heavy rainfall. Critics argue that the state must improve its flood management systems to mitigate the risks associated with such intense weather events.

Heavy Rain & Snow Across The West

As the storm system moves in, residents can expect significant weather changes starting Sunday, with the heaviest precipitation anticipated from Monday night to Tuesday night. The trajectory of the storm will determine the extent of rainfall and snowfall across California and the Pacific Northwest, with ongoing monitoring necessary to assess flood risks and impacts on travel and safety.

Heavy Rain & Snow Across The West