California – A powerful early-season winter storm is set to slam California’s mountain communities today, bringing heavy, wet snow and dangerous travel conditions from this afternoon through Friday.
According to the National Weather Service, a Winter Storm Warning takes effect at 4 p.m. Thursday for the San Bernardino County Mountains and Riverside County Mountains, including Big Bear Lake and Big Bear City. Forecasters warn that travel could become “very difficult to impossible,” especially during the Thursday evening and Friday morning commutes.
Snow levels will start high but drop quickly overnight. Accumulating snow is expected as low as 5,500 to 6,000 feet early Friday morning. Between 6,000 and 7,000 feet, 3 to 6 inches are likely. Elevations from 7,000 to 7,500 feet could see 6 to 10 inches, while areas above 7,500 feet may receive 10 to 14 inches by Friday afternoon. Total storm snowfall may reach up to 13 inches before tapering off.
Scattered snow showers will linger into Friday night and Saturday, adding another 2 to 5 inches in higher elevations.
Drivers planning to travel mountain routes—including those accessing Big Bear, Onyx Summit, and high-elevation passes—should prepare for rapidly worsening conditions. Officials urge motorists to carry chains, emergency supplies, and avoid travel during peak snowfall if possible.
Residents and visitors should monitor updated forecasts and snow levels as the storm intensifies.
