Major winter systems are producing active winter weather across the United States, prompting a broad zone of winter storm warnings from federal and local weather offices. The most intense impacts are unfolding in the Rockies, the interior Northwest, and the northern Plains, while parts of the Mid-Atlantic and the Texas Panhandle are experiencing lighter yet still disruptive snowfall. These winter storm warnings signal rapidly changing conditions that could affect travel, daily commutes, and mountain activities through the weekend.
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A shifting weather pattern across the country
A series of strong systems — including a Pacific storm train along the West Coast and a fast-moving disturbance crossing the central and eastern United States — is driving a complex winter weather pattern. The Pacific Northwest is dealing with repeated waves of moisture tied to incoming atmospheric rivers, bringing heavy rain to low elevations and heavy snow to mountains. Meanwhile, the Intermountain West and northern Rockies are seeing periods of dense orographic snow that will continue to accumulate across high terrain.
Rockies and Intermountain West: heavy snow and hazardous travel
Several mountain regions in Wyoming remain under winter storm warnings due to significant snowfall and strong winds. The Teton and Gros Ventre Mountains, along with the Salt River and Wyoming Ranges, are expected to see 12 to 20 inches of snow in many areas, with the highest elevations potentially reaching 2 to 3 feet. Wind gusts above 45 mph in exposed areas could create low visibility and blowing snow. Mountain pass travel may be extremely difficult, and avalanche risk will rise in backcountry areas as snow loads increase.
Colorado: dangerous driving conditions and more snow ahead
Colorado is experiencing slick and icy roads after rounds of snowfall, particularly in the mountains and foothills. Forecasters expect continued periods of mountain snow through the weekend, with higher accumulations possible at elevated resorts and backcountry zones. Drivers should anticipate slow-moving traffic, sudden whiteout conditions, and icy surfaces on untreated roads.
Pacific Northwest: atmospheric rivers create multi-day hazards
Multiple atmospheric rivers are forecast to reach the Pacific Northwest over the coming week, bringing repeated bouts of heavy rainfall and mountain snow. Lowland areas may face flooding or landslide risks due to saturated ground, while the Cascades and other higher elevations will accumulate significant snowfall. Travel through mountain passes could become extremely challenging as conditions deteriorate.
Mid-Atlantic and Northeast: timing matters for commuters
A separate storm is moving through the Mid-Atlantic region and bringing measurable snow to parts of Washington, D.C., Baltimore, and Philadelphia. Accumulations around the D.C. area are expected to range from a dusting to approximately one inch, with slightly higher totals possible farther south into Virginia and Southern Maryland. Even modest snowfall can create slippery road conditions if it occurs during the morning commute, potentially causing delays across major highways.
Southern Plains and Texas Panhandle: pockets of accumulating snow
The Texas Panhandle and nearby areas of the southern Plains are seeing pockets of snowfall, with several inches possible in isolated locations. Although not widespread, these totals can still disrupt travel in areas less accustomed to winter weather. Drivers should remain cautious and check local advisories for updated conditions.
Understanding weather alerts
- Winter Storm Warning: Indicates heavy snow, strong winds, and major travel disruptions. Residents in affected areas should prepare for reduced visibility, difficult driving conditions, and potential power issues.
- Winter Weather Advisory: Alerts the public to lighter snow or mixed precipitation that may still cause slick roads and delays.
How to stay safe during active winter weather
- Postpone nonessential travel in warning zones whenever possible. If driving is unavoidable, carry emergency supplies such as warm clothing, food, water, a flashlight, and jumper cables.
- Outdoor recreation enthusiasts should check avalanche conditions, especially in mountain regions expecting heavy snowfall and wind-loaded slopes.
- Protect household plumbing by insulating exposed pipes and preparing for freezing temperatures.
- Monitor local weather alerts for updates on storm timing and potential power interruptions.
What to watch over the next several days
Forecasters will continue refining snowfall and wind projections as these evolving systems move across the country. The West Coast may face additional rounds of moisture from the ongoing Pacific storm pattern, while quick-moving disturbances in the Midwest and Northeast may deliver additional light snow or lake-effect bands. Staying informed through updated local weather guidance is essential for planning safely.
Preparedness remains key
The widespread winter storm warnings this week highlight the active and changeable nature of U.S. winter weather. Residents are encouraged to stay alert, secure necessary supplies, and limit travel when conditions become hazardous.
