RMNP warns of spring snow, avalanche risks, and rapid road changes

Rocky Mountain National Park is still a winter-country trip in early May, and that matters for anyone driving up from the desert expecting an easy spring getaway. Park officials warned that snow, ice, strong winds, blowing snow, and icy roads can arrive fast, and they said vehicles blocking access on Trail Ridge Road can be towed and cited.

The park’s May 7 trail report said a recent winter storm left snow and ice expected on all trails inside Rocky Mountain National Park. Snow amounts varied by location, elevation, and sun exposure, which means one trailhead can look passable while another stays slick and packed with ice. The park also recommended traction devices and warned that thin ice and open water can be present on alpine lakes, with clear instructions not to walk on icy lakes. RMNP, which covers 415 square miles and holds more than 300 miles of hiking trails, is open year-round, 24 hours a day, but every visit still requires a park entrance fee or valid pass.

The avalanche message is just as blunt. RMNP says avalanches can occur on any slope and may not be clearly visible, and the park’s high-country hazards guidance says avalanches are common during winter and early spring. For backcountry plans, the Colorado Avalanche Information Center issues avalanche forecasts daily by 4:30 p.m. and updates weather forecasts twice a day, a reminder that mountain conditions can change after a road is already pointed uphill.

Driving rules are shifting with the weather too. Colorado’s passenger vehicle traction law can require all-wheel drive, four-wheel drive with qualifying tires, or chains and approved traction devices during severe winter storms, and Colorado State Patrol says chain-law and traction requirements can go into effect at any time for all types of vehicles. Restrictions are announced through Colorado Department of Transportation signs, 511, official travel websites, and media outlets. RMNP’s winter-driving guidance adds the basics that still save trips and fenders alike: slow down, keep your distance, and stay clear of plows.

That combination makes spring in the park a gamble for road-trippers, tour operators, and anyone aiming for Trail Ridge Road, Longs Peak, or high-country trailheads near Estes Park and Grand Lake. The calendar may say spring, but in RMNP the snowpack, the avalanche bulletin, and the chain law still get the final word.