Polar Vortex Shift: What to Expect in February 2026

The polar vortex, weakened by a Sudden Stratospheric Warming, will shift, allowing colder air to move southward.

The eastern U.S. will experience a temporary warm-up as the jet stream shifts, shielding it from the worst of the polar vortex.

The western U.S. will see a return to winter weather with increased snow and rain, helping to alleviate snow droughts in mountain ranges.

Forecasters predict a "wonky" weather pattern with multiple medium-strength storm systems affecting the Great Lakes region and the Northeast.

Eastern U.S.:: Be prepared for potential rain, sleet, and freezing rain events. Stay informed about local weather forecasts and advisories.

Western U.S.:: Take advantage of the increased snowfall by engaging in winter sports and activities. Be aware of potential travel disruptions due to heavy snow.

Farmers and agricultural businesses: in the West, who rely on snowmelt for irrigation.

Ski resorts and winter tourism operators: in the West, who benefit from increased snowfall.

Residents of the eastern U.S.: , who may experience a mix of rain, snow, and ice as the weather pattern shifts.

A:: The polar vortex is a large area of low pressure and cold air surrounding both of the Earth's poles. It always exists, but it weakens in summer and strengthens in winter.

A:: A Sudden Stratospheric Warming occurs when temperatures in the Arctic stratosphere rapidly increase, disrupting the polar vortex.

A:: The impacts will vary depending on your location. The eastern U.S. can expect a brief warm-up and potential for mixed precipitation, while the western U.S. will see increased snow and rain.

The polar vortex is shifting, bringing significant weather changes to the U.S.

The eastern U.S. will experience a temporary reprieve from the cold, while the western U.S. will see increased snowfall.

Stay informed about local weather forecasts and be prepared for potential disruptions.