A late-season snowstorm brought heavy accumulation to Loveland Pass on I-70 in Colorado on May 5, 2024 [1].
The storm creates significant travel hazards during a month when mountain passes typically transition to spring conditions. This unexpected weather event forces drivers to navigate mid-winter conditions well into the second quarter of the year.
According to NOAA's Weather Prediction Center, the storm was driven by back-to-back Pacific storms [2]. These systems raised a rare "moderate" heavy-snow risk for the mountains of Colorado during May [2]. The resulting weather patterns transformed the high-altitude corridor into a winter landscape, complicating transit on one of the region's primary arteries.
Forecasts indicated that up to 48 inches of snow could affect areas including Donner Pass and I-70 [2]. The accumulation on Loveland Pass was significant enough to make the drive appear as though it were the height of winter [1].
Local reports said the storm was expected to impact the broader Denver area from late Tuesday into Wednesday [3]. The timing of the storm is unusual for the region, as heavy snow totals of this magnitude are typically reserved for the peak winter months rather than early May.
Travelers are advised to monitor road conditions as the storm moves from California toward Colorado [2]. The intersection of spring travel patterns and winter-grade snowfall often leads to increased traffic congestion, and safety risks on steep mountain grades.
“Late-season snow is adding up on Loveland Pass”
The occurrence of a 'moderate' heavy-snow risk in May highlights the volatility of Pacific storm tracks. When these systems move inland late in the season, they can create dangerous anomalies where infrastructure and driver preparedness are geared for spring, but environmental conditions demand winter-grade equipment and caution.
