National US Weather Alert — January 3, 2026
The United States is currently under the influence of a highly active and volatile winter weather pattern. A combination of powerful Pacific storm systems, lake-effect snow, Arctic air intrusions, and regional rain events is producing widespread hazards from coast to coast. Weather agencies warn that impacts may persist for several days, affecting transportation, infrastructure, energy demand, and daily life. 0
West Coast Overview — Pacific Storm Train Continues
A persistent flow of Pacific moisture is fueling repeated storm systems across the West Coast. Coastal regions are experiencing periods of rain and strong winds, while inland valleys remain cold and damp. Emergency officials are monitoring vulnerable roadways and infrastructure due to ongoing storm impacts. 1
California — Sierra Nevada Snow Emergency
California’s Sierra Nevada is facing extreme winter conditions, with prolonged heavy snowfall, whiteout visibility, and severe wind gusts. Snow accumulation is rapidly increasing at higher elevations, straining road maintenance crews and triggering chain requirements across major mountain routes. 2
Travel through mountain passes is strongly discouraged except for essential travel. Avalanche danger is elevated in backcountry terrain. 3
Pacific Northwest — Snow, Rain & Mountain Hazards
Washington and Oregon continue to see unsettled weather, with rain in lower elevations and heavy snow in the Cascades. Mountain passes are slick and snow-covered, while gusty winds may cause sporadic power disruptions. 4
Intermountain West & Rockies — Cold, Snow & Isolation Risk
The Intermountain West and Rocky Mountains are enduring persistent snowfall combined with dangerously cold temperatures. Remote communities may face isolation due to snow-covered roads, while livestock and agriculture interests must contend with harsh overnight lows. 5
Central Plains — Arctic Front Pushes South
A sharp Arctic front is driving southward across the Plains, bringing gusty winds, light snow, and rapidly falling temperatures. Flash-freezing conditions may occur where moisture is present, creating sudden icy roadways. 6
Midwest — Widespread Snow & Ice Concerns
The Midwest remains a focal point for winter hazards. Snowfall, freezing drizzle, and bitter cold are combining to produce dangerous travel conditions. Snow-covered interstates, reduced visibility, and icy bridges remain major concerns for commuters and freight transport. 7
Great Lakes — Intense Lake-Effect Snow Bands
Arctic air flowing across the Great Lakes is generating intense lake-effect snow. These narrow but powerful snow bands can produce rapid accumulations in a short time, leading to near-zero visibility and sudden road closures. 8
Northeast — Snow Showers & Prolonged Cold
The Northeast is experiencing periods of snow showers, especially across interior regions and higher elevations. Persistent cold temperatures are keeping surfaces icy, increasing the risk of slips, falls, and vehicle accidents. 9
Southeast — Rainfall & Localized Flooding
Southern states, including parts of the Southeast and Gulf Coast, are dealing with rain and isolated thunderstorms. While widespread severe weather is not expected, heavy downpours could cause localized flooding in urban and low-lying areas. 10
Southwest — Dry but Colder Than Normal
The Southwest remains largely dry, though colder-than-average temperatures dominate. Overnight freezes may threaten sensitive crops and exposed plumbing, especially in desert communities unaccustomed to prolonged cold. 11
Nationwide Arctic Cold — Health & Energy Impacts
An expansive Arctic air mass continues spreading across much of the country. Wind chills in northern states may feel dangerously cold, increasing risks of cold-related illness. Heating demand is surging, placing additional strain on energy systems. 12
Aviation, Road & Rail Disruptions
Winter weather is causing delays and cancellations across major transportation hubs. Snow removal operations, de-icing procedures, and low visibility may disrupt air travel, while road and rail networks face ongoing challenges. 13
Agriculture & Livestock Concerns
Farmers and ranchers across cold-affected regions are urged to protect livestock, ensure access to unfrozen water, and safeguard equipment from freezing temperatures. Prolonged cold can stress animals and damage infrastructure. 14
Public Safety & Preparedness Guidance
- Avoid non-essential travel during winter storms
- Keep emergency supplies, food, and water on hand
- Dress in layers and protect exposed skin
- Prepare vehicles with winter safety kits
- Check on elderly neighbors and vulnerable individuals
Extended Outlook — What’s Next?
Forecast models suggest the active winter pattern will persist into the coming week. Additional storm systems may bring renewed snowfall, rain, and continued cold across multiple regions. 15
Residents nationwide are advised to stay informed, remain flexible with travel plans, and take necessary precautions as winter weather continues to evolve. 16
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