Jet Stream Shift to Bring Much-Needed Snow to Drought-Stricken West

East Coast to be spared worst of Polar Vortex as weather pattern changes

Feb. 4, 2026 at 6:47am

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While the eastern U.S. has been hit hard by Arctic air and snow, the West has experienced weeks of unseasonable warmth, leaving many mountain ranges in a snow drought. However, a shift in the jet stream is expected to bring numerous storms and beneficial snowfall to the West Coast and Rockies in the coming weeks, while shielding the East from the worst of the polar vortex.

Why it matters

The lack of snowpack in the West's mountain ranges is a major concern, as these snowpacks play a crucial role in providing water for drinking, agriculture, and other uses during the summer months. The upcoming snowfall is expected to help alleviate the ongoing drought conditions in the region.

The details

A change in the weather pattern will flip the script by mid-February, as a shift in the jet stream will open the door for numerous storms to bring snow and rain to the West Coast and Rockies. This shift in the jet stream will also shield the East from the worst of the polar vortex, which will retreat farther north than earlier projections.

  • The jet stream pattern change is expected to begin in the coming days into mid-February.
  • The West is expected to see beneficial snowfall over the next 10 days.

The players

Polar Vortex

The core of the polar vortex contains some of the coldest air on the planet and typically sits over the North and South Poles.

Jet Stream

The Pacific-North American jet stream is the steering mechanism for most of the storms over the country.

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The takeaway

This weather pattern change is crucial for the drought-stricken West, as the upcoming snowfall will help replenish the region's vital mountain snowpacks, which are crucial for providing water resources during the summer months.