‘Triple-threat megastorm’ to scatter snow, high winds and thunder across US

The Guardian US News
by Edward Helmore and agencies
March 15, 2026
2 min read

Quick Insights

The Bottom Line

A massive storm system is bringing snow, high winds and thunderstorms to 200 million Americans.

How This Affects You

You may face impassable roads, power outages, flight cancellations, and dangerous driving conditions through Monday.

AI Summary

A powerful storm system is moving across the United States, affecting 200 million people with a combination of blizzard conditions, damaging winds, and thunderstorms. The storm has already dumped heavy snow and made roads impassable in the upper Midwest while high winds swept across the Plains. Forecasters warn the severe weather will spread eastward and threaten a large portion of the eastern US by Monday. The mid-Atlantic states and Washington DC face the greatest risk for high winds and tornadoes as the storm system continues its eastward march.

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