What is the polar vortex and how does it affect March weather?

The polar vortex is a large area of cold air above the North Pole that can influence weather patterns when it weakens or wobbles, potentially bringing unexpected cold outbreaks in March.

Could a polar vortex split bring colder weather to the U.S. in March?

Yes, a projected polar vortex split due to sudden stratospheric warming could lead to colder and stormier weather, particularly in western North America, while the East may see milder conditions followed by a potential return of cold later in March or early April.

What are the risks of flooding in the Northeast in March?

Rapid snow melt and ice jams caused by warmer temperatures in the eastern U.S. are anticipated to increase the risk of flooding from the Ohio Valley to the Northeast.

Home / Weather / Polar Vortex Wobbles: March Weather Surprises Ahead

Polar Vortex Wobbles: March Weather Surprises Ahead

28 Feb

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Summary

Polar vortex disruption may bring unexpected cold snaps in March.
Sudden stratospheric warming could split the polar vortex.
Western North America might see colder, stormier weather.
Flooding risks increase due to rapid snow melt in the Northeast.

Polar Vortex Wobbles: March Weather Surprises Ahead

As March begins, meteorological spring arrives, but winter's influence, particularly from the polar vortex, may persist. This atmospheric pattern, a circulating mass of cold air above the North Pole, can weaken and wobble, affecting weather across the United States. Forecasters indicate that disruptions, including sudden stratospheric warming events, are expected to continue influencing the weather throughout March.

These disruptions have the potential to cause significant shifts. One projection suggests a polar vortex split could lead to colder and stormier conditions in western North America during early March. Conversely, many eastern U.S. regions might experience above-average temperatures, accelerating snow melt and ice jams, which could result in flooding. Meteorologists are monitoring the storm track closely for potential late-winter storms.