A severe winter storm is set to impact parts of Wyoming and Colorado, with expectations of up to 20 inches of snow and wind gusts reaching 60 mph, according to the National Weather Service (NWS). This will pose dangerous travel conditions, near-zero visibility, and possible power outages due to heavy, wet snow affecting trees and power lines.

Local Impacts: Power, Trees, and Daily Disruptions

Beyond travel, the storm could cause various disruptions:

• Power outages from snow weighing down tree branches and power lines.
• Commutes on Monday morning and evening likely to be significantly affected.
• Challenges in accessing rural and mountainous areas.
• Potential delays or disruptions to schools, especially in high-elevation communities.
• Hazardous conditions for outdoor work and activities.
• Damage to trees, particularly where spring leaves are present.

Winter Storm Overview: The Hardest-Hit Areas

The NWS has issued warnings targeting higher elevations and mountain corridors in Wyoming and Northern Colorado. The most affected areas include:

• Colorado (above 9,000 feet): Rocky Mountain National Park, Medicine Bow Mountains, Rabbit Ears Range and surrounding mountain passes.
• Wyoming: Snowy Range and north Laramie Ranges, Wind River Mountains, Sierra Madre Range, Casper Mountain, and Interstate 80 corridor near Arlington and Elk Mountain.

Forecast Winter Weather Conditions

Expected conditions include:

• Heavy, wet snow that can cling to trees and infrastructure.
• Strong winds, ranging from 30 to 60 mph.
• Blowing and drifting snow, reducing visibility.
• Rapidly deteriorating conditions through Sunday night into Monday.

How Much Snow Is Expected?

Snow totals will vary depending on location and elevation. The NWS warns of significant accumulations:

• Colorado—Rocky Mountain National Park and Medicine Bow Range: 8 to 18 inches of snow, with the highest totals on east-facing slopes.
• Wyoming—Snowy Range and north Laramie Range: 10 to 20 inches of snow, winds up to 40 mph causing blowing snow, particularly above 8,500 feet.
• Wind River Mountains (East): 9 to 18 inches of snow; winds up to 60 mph.
• Casper Mountain: 10 to 18 inches of snow; winds reaching 40 mph, reducing visibility.
• Sierra Madre Range: Up to 15 inches of snow; winds up to 50 mph causing blowing and drifting snow.

Snow Warnings: What Should Drivers Expect?

Travel is forecasted to be ‘very difficult to impossible,’ especially in high-elevation areas and along major transport routes:

• Snow-covered and icy roads, particularly on bridges and overpasses.
• Whiteout conditions caused by blowing snow.
• Visibility drops to below a quarter of a mile.
• Increased risk of stranded vehicles.
• Major routes impacted include: Interstate 80 in Wyoming, Highway 20 to 26 between Hiland and Casper, and Mountain passes like Cameron Pass, Willow Creek Pass in Colorado, and South Pass in Wyoming.

The NWS advises drivers to delay travel if possible, but if necessary, they should:

• Carry emergency supplies such as food, shovels, water, and a flashlight.
• Allow extra time and maintain a safe distance between vehicles.
• Prepare for rapidly changing conditions.

Key Takeaway

This storm represents a high-impact, late-season winter event with heavy snow, strong winds, and widespread travel hazards across Wyoming and Northern Colorado. Residents in affected regions should prepare now and avoid unnecessary travel, as conditions are expected to worsen through Monday.