Reno, NV – A significant winter storm will bring heavy snowfall to the Sierra beginning early Monday morning, with widespread travel delays, chain controls, and hazardous roads expected through Tuesday. Winter Weather Advisories have been issued for both the Tahoe Basin and Mono County as snowfall intensifies ahead of the morning commute.
According to the National Weather Service in Reno, light showers taper off this evening before the next, more powerful system arrives. Snow will begin before sunrise Monday, quickly increasing in intensity as colder air and strong moisture feed into the Sierra.
For the Tahoe Basin, 9–12 inches of new snow is expected above 6,500 feet, with an additional 1–6 inches possible between 6,000 and 6,500 feet and at lake level. In Mono County, snowfall totals will be higher, with 7–15 inches forecast above 8,500 feet and 2–6 inches at lower elevations. The heaviest snowfall rates—up to 1 inch per hour for the Tahoe Basin and 2 inches per hour in Mono County—are likely Monday morning, creating dangerous travel conditions.
Major routes including I-80, US-395, US-50, and roadways near Carson City and Mono County are expected to face delays, reduced visibility, and chain requirements. Travel forecast graphics show moderate to high impacts for both the morning and evening commutes Monday, with lingering effects into early Tuesday.
Road conditions may deteriorate rapidly during heavy bursts of snow, especially on mountain passes and exposed stretches of highway. Motorists are urged to avoid unnecessary travel in the mountains Monday morning, prepare for delays, and check for chain controls before heading out.
Another system may impact the region Tuesday evening, but confidence in that forecast remains low at this time.
