Weather
Colorado Winter Weather Advisory: 6-12 Inches Possible Oct 14-15
Denver, CO – Colorado's first significant mountain snowfall of the season is expected to create hazardous travel conditions Wednesday, Oct. 14, with up to 12 inches of snow possible across some high e
By Jenna Hartley · 2026-10-13T20:58:00.647Z
Denver, CO – Colorado's first significant mountain snowfall of the season is expected to create hazardous travel conditions Wednesday, Oct. 14, with up to 12 inches of snow possible across some high elevation areas as winter weather advisories take effect.
According to the National Weather Service offices in Denver/Boulder and Pueblo, snowfall will increase Tuesday evening and overnight, with the most significant accumulations and travel disruptions expected Wednesday afternoon through early Thursday morning.
Up to 12 Inches Expected in Northern Mountains
A Winter Weather Advisory covers portions of Colorado's northern and central mountains from noon Wednesday until 6 a.m. Thursday, Oct. 15.
Forecasters expect 6 to 12 inches of snow across affected mountain areas, including the Rabbit Ears Range, Rocky Mountain National Park, Medicine Bow Range, Summit County mountains and Indian Peaks.
Travel through Berthoud Pass, Eisenhower Tunnel and other high elevation corridors could become hazardous as roads turn snow covered and slippery.
Additional Advisories Across Southern and Central Colorado
The Eastern San Juan Mountains above 10,000 feet, including Wolf Creek Pass and Cumbres Pass, face a separate advisory from midnight Tuesday night until 6 p.m. Wednesday.
Snowfall totals of 4 to 9 inches are expected.
Meanwhile, the Eastern Sawatch Mountains and Western Mosquito Range above 11,000 feet could receive 5 to 10 inches between 6 a.m. Wednesday and midnight Wednesday night.
Wind gusts could reach 35 mph, with the greatest snowfall expected over higher terrain north of Cottonwood Pass.
Travel Conditions Could Deteriorate Quickly
Forecasters warn that the highest mountain passes could experience slushy conditions overnight before heavier snow develops Wednesday.
Lower mountain valleys and foothills should generally see lighter accumulations, while areas below 6,500 feet are expected to receive rain rather than snow.
Motorists traveling into Colorado's mountains should allow extra time, reduce speeds and prepare for winter driving conditions.
Chain and traction laws may be activated on affected highways.
Drivers can check current road conditions, closures and restrictions at COtrip.org or by calling 511.