When will the extreme cold in the eastern US end?

The cold spells are expected to continue through at least mid-February and likely beyond, with the polar vortex not anticipated to normalize until meteorological winter concludes on February 28.

Why is the eastern US experiencing such extreme cold?

The extreme cold is due to a rare and severe arctic airmass, with some of the frigid air originating from Siberia, and is significantly influenced by the polar vortex.

What is the February weather forecast for the eastern US?

Much-below-normal temperatures are expected to persist into early February, with another significant cold surge and potential snow anticipated around mid-February.

Home / Weather / Polar Vortex Unleashes Arctic Blast Across America

Polar Vortex Unleashes Arctic Blast Across America

31 Jan

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Summary

Eastern US faces rare, severe arctic airmass this week.
Cold air originates from Siberia, intensifying the freeze.
Polar vortex to drive cold surges through February.

Polar Vortex Unleashes Arctic Blast Across America

An unprecedented arctic airmass is currently enveloping the eastern United States, making it one of the coldest regions on Earth relative to average. This intense cold snap is characterized by its rare combination of duration and magnitude.

The frigid air has origins in Siberia, contributing to its extreme nature. Climatologists confirm that the polar vortex is a significant factor, continuously influencing the weather patterns and expected to prolong these harsh conditions.

Temperatures are predicted to remain significantly below normal across the eastern US through early February. Although a slight moderation may occur, the polar vortex is poised to unleash another wave of bitterly cold air around mid-February.