3/15/2026 | USA | general | ✓ Verified - cnbc.com

Snow and wind batter parts of the U.S., with threat of thunderstorms and tornadoes

#snow #wind #thunderstorms #tornadoes #U.S. weather #storm system #weather alerts

📌 Key Takeaways

Severe winter weather is impacting multiple U.S. regions with snow and high winds.
There is a concurrent threat of thunderstorms and tornadoes in affected areas.
The storm system is causing hazardous travel and potential property damage.
Residents in impacted regions should monitor weather alerts and take precautions.

📖 Full Retelling

Successive punches of snow, wind and severe weather are "going to impact the eastern half of the United States," said AccuWeather's Tyler Roys.

🏷️ Themes

Severe Weather, Public Safety

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Deep Analysis

Why It Matters

This severe weather event matters because it poses immediate safety risks to millions of Americans across multiple regions, disrupting transportation, power infrastructure, and daily life. The combination of snow, high winds, thunderstorms, and tornado threats creates particularly dangerous conditions that can lead to property damage, injuries, and economic impacts. This affects emergency responders, utility workers, travelers, and residents in affected areas who must prepare for potentially life-threatening conditions.

Context & Background

Severe winter storms and tornado outbreaks are common seasonal occurrences in the U.S., particularly during transitional weather periods
The U.S. experiences approximately 1,200 tornadoes annually, with peak seasons varying by region
Winter storm systems often develop when cold Arctic air masses collide with warmer, moisture-laden air from the Gulf of Mexico
Climate research suggests changing patterns may be increasing the frequency and intensity of some extreme weather events

What Happens Next

Emergency declarations may be issued in affected states, with power restoration efforts beginning once winds subside. The National Weather Service will continue monitoring the system's progression and issue updated warnings. Damage assessments will follow the storm's passage, potentially triggering federal disaster assistance if thresholds are met.

Frequently Asked Questions

Which regions are most at risk from this storm system?

Areas along the storm's path where cold and warm air masses converge face the highest risks, typically including the Midwest, Plains states, and potentially the Southeast for tornado threats. Specific risk areas depend on the storm's exact track and timing.

How should people prepare for these combined weather threats?

Residents should monitor local forecasts closely, have multiple ways to receive warnings, prepare emergency kits with supplies for power outages, and identify safe shelter locations for both tornado and winter storm scenarios.

Why can thunderstorms and tornadoes occur during winter storm events?

These conditions develop when strong storm systems create instability by lifting warm, moist air over colder surface air, particularly along frontal boundaries where temperature contrasts are sharpest.

How long are these severe conditions expected to last?

The most intense conditions typically last 12-48 hours as the storm system moves through a region, though cleanup and recovery efforts may extend for days or weeks depending on damage severity.

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Original Source

              A broad and erratic patchwork of severe weather rumbled across much of the U.S. on Sunday, dumping heavy snow and making roads impassable in the Upper Midwest while damaging high winds swept across the Plains. Hawaii also continued to be affected by severe flooding. And portions of the mid-South readied for late-day thunderstorms. Forecasters said the storms will spread eastward and by Monday threaten a large swath of the Eastern U.S., with mid-Atlantic states and Washington, D.C., at greatest risk for high winds and tornadoes. Successive punches of snow, wind and severe weather are "going to impact the eastern half of the United States," said AccuWeather senior meteorologist Tyler Roys. Beyond the threat to lives and property, "whether it's wind gusts from a squall line, blizzard or snow, or just wind because of the storm, you're looking at several major airports being impacted." Big snows in Minnesota, Wisconsin, Michigan An area from central Wisconsin to Michigan's Upper Peninsula was likely to see over 2 feet (60 centimeters) of snow, with higher isolated totals on the peninsula, Roys said. Lower snow accumulations in places like Chicago and Milwaukee will likely create trouble for commuters on Monday, he added. A person walks down a snowy street, Sunday, March 15, 2026, in St. Paul, Minnesota. Abbie Parr | AP Photo Over 20 inches (51 centimeters) of snow had fallen in some portions of southeastern Minnesota and western Wisconsin as of Sunday afternoon, according to National Weather Service reports. Transportation officials warned of worsening conditions with low visibility and snow-covered roadways. Wisconsin snowplow driver Aaron Haas said it was one of the worst storms he had seen in years. On Sunday around the town of Marshfield, Haas was stacking piles of snow as high as his truck. "You can't see anything when you're on the highways outside of the city," he said. Jim Allen, 45, who lives on the Upper Peninsula, said his family stocked up on necessities and ...
            

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