Significant snow this weekend to impact travel along the I-70 Mountain Corridor, US 40 Berthoud Pass and southwest Colorado

Winter Travel Alert

February 2, 2024 - Statewide - Backcountry users urged not to recreate alongside roadways

Statewide - Another round of snow is making its way across the state this weekend, with the majority of impacts occurring in southwest Colorado and the high country. Rain/snow showers will begin spreading into the Four Corners on Thursday night, expanding northward through Friday afternoon. The heaviest snow during this period should largely favor the Southern mountains. Snow is predicted to make its way to Colorado’s northern and central mountains on Friday evening, lasting through Saturday night. This snowfall is expected to overlap with ski traffic along the I-70 Mountain Corridor on Friday night. Motorists should prepare for travel disruptions anticipated for Saturday throughout the day. Current snow totals of one to two feet or more are likely for the majority of Colorado’s mountain passes.

“Travel along Colorado’s mountain roads, specifically the I-70 Mountain Corridor, will be challenging this weekend, not only because of the weather that is predicted, but also due to heavy traffic as folks make their way up to take advantage of fresh snow,” said John Lorme, the Colorado Department of Transportation’s director of maintenance and operations. “It will be slow moving along the Corridor this weekend, so remember to be patient and make sure you are not the cause of a road closure. Ensure your vehicle is fully equipped to handle winter weather before heading out, and pack the essentials in your vehicle such as blankets, extra coats, water, food and entertainment in the likely event of a closure. The best way to arrive at your destination safely is to drive for the conditions and maintain a safe space between you and the car ahead of you.”

A significant amount of snow is expected to hit southwest Colorado’s high country and US 40 Berthoud Pass over the weekend, popular backcountry recreation destinations, which may pose avalanche risks throughout the weekend. With heavy snow anticipated, backcountry recreationalists are urged to avoid venturing into areas alongside roadways not only for their safety, but also for the safety of motorists along Colorado’s highways, to prevent people recreating from triggering snow slides onto the roadway. Motorists should be prepared for potential safety closures as CDOT and Colorado Avalanche Information Center crews conduct avalanche mitigation operations. Backcountry users should be aware of avalanche conditions before heading out by visiting for current snow condition forecasts.

“Backcountry avalanche conditions are going to be changing throughout the weekend as the storm moves through the state,” said Ethan Greene, director of the Colorado Avalanche Information Center. “We expect high avalanche danger in most mountain areas on Saturday and dangerous conditions lasting into Monday.”

If you encounter an avalanche while in your vehicle, there are several things you can do to help keep you safe:

  • Stay in your vehicle and keep the windows up
  • Turn off your vehicle to prevent carbon monoxide from filling the car
  • Call for help on a cell phone
  • Plan ahead during the winter season and keep additional food, water, warm clothes and blankets in your vehicle

East of the Continental Divide, the storm will arrive later and is expected to be shorter in duration. Heavy rain and snow is expected Friday evening into Saturday night over portions of east Colorado. The Foothills and Palmer Divide may experience a wet, slushy snow mix Friday evening into Saturday night. Urban areas along I-25 may receive a mix of rain and snow Saturday to Sunday morning. While the bulk of the storm will wind down on Sunday morning, there may still be a few rain/snow showers that will linger over the eastern plains.

While backcountry recreation is not recommended near roadways or in avalanche terrain this weekend, CDOT advises anyone recreating elsewhere to take care when parking. Skiers, snowshoers, and snowmobilers should park only in clearly marked and designated parking areas. Look for caution signs at avalanche areas that indicate no stopping or standing at that location. These areas are prone to snow slides and vehicles or trailers should never be parked at these potential avalanche sites. The slide areas are also often at locations where avalanche mitigation operations may be planned. Never park Also be aware that vehicles parked on highway shoulders can prevent CDOT maintainers from safely clearing the roads of snow and ice, presenting safety hazards for plow equipment, other motorists and commercial traffic.

Before heading out this weekend, motorists should take advantage of CDOT’s or the COtrip Planner app to get real-time information regarding road closures and conditions, take a look at its live cameras or see if the Chain or Traction Laws are in effect. Due to post limitations on the X platform, formerly Twitter, updates may not be posted on CDOT’s profile as it has in years past. Please visit or download the COtrip Planner app for updates, or sign up to subscribe to travel alerts delivered straight to your phone.

For a stress-free ride up to the mountains, take advantage of CDOT’s bus and shuttle services. Snowstang can transport weekend goers to Arapahoe Basin, Breckenridge, Copper Mountain, Loveland Ski Area and Steamboat Springs. CDOT’s Pegasus shuttle service can take folks from Denver’s Union Station to Idaho Springs, Frisco, Vail and Avon.

National Weather Service Expected Snowfall Accumulation Map.
National Weather Service Expected Snowfall Accumulation Map.

Winter Travel Tips for Motorists

  • Avoid or limit driving during the brunt of the storm. Many areas of the state will experience pavement impacts and blowing snow due to strong winds.
  • Work from home if you can.
  • If you plan to travel, know before you go by checking out the latest weather conditions and visiting for road conditions (see info sources below).
  • Make sure your vehicle is winter ready with the appropriate tires for the weather and have a snow emergency kit.
  • Once you are out on the road, take it slow, no sudden stops and leave plenty of following distance.
  • Give plows space! Stay back three to four car lengths from snow plows.

Safety Closures

A safety closure is a precaution taken during inclement weather to reduce the probability of traffic incidents, increased congestion or other safety-related factors. During a safety closure, traffic may be stopped on the interstate, turned around or directed to an exit. Safety closures help decrease delay times, and, above all, keep travelers safe.

Chain and Traction Laws

When weather conditions warrant, CDOT will activate the Traction Law. If weather conditions deteriorate, CDOT will activate Chain Laws for passenger and commercial vehicles. Motorists will be alerted to an active Traction or Chain Law by highway signage, and traffic/roadway condition alerts. For more information on the Traction Law and Passenger Vehicle Chain Law requirements, visit For more information on the Commercial Vehicle Chain Law requirements, visit To learn more and view helpful tips for winter driving, visit and COtrip Planner app

Motorists are urged to visit and download the COtrip Planner app ahead of traveling. Motorists are now able to sign up for travel alerts through to see if there are any highway closures or impacts along their favorite routes. The COtrip Planner app also offers a “Trip Planner” feature that allows motorists to map out their routes and receive updates about road closures or incidents along the way. Motorists can turn on the “Hands-Free, Eyes Free” feature to receive these alerts via voice notifications and avoid routes with impacts.

CDOT is also pleased to offer motorists the opportunity to track CDOT snow plows on the app and website, and can even follow some of our “celebrity” plows that were named by elementary school students last year. Using the snow plow tracker allows motorists to see where our plows have been and even see what the road conditions look like by viewing the cameras in the area of the plows. CDOT plows have thousands of miles of roadway to maintain, so motorists are asked to please be patient and are reminded to never pass a plow on the right or while in echelon formation. It is always safer to stay behind a plow.

Know Before You Go

Travelers are urged to “know before you go.” Gather information about weather forecasts, anticipated travel impacts and current road conditions before hitting the road. CDOT and other resources include: