A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

Snow and winds are likely to trigger flight cancellations and cause headaches for people traveling to DC for Inauguration Day.

We start the following work week with a polar vortex. This will bring in unseasonably cold air to the region and wind chill temperatures back to the negatives. But what is a polar vortex? The polar vortex is the jet stream above the Arctic Circle.

The polar vortex is a large area of low pressure, winds, and cold air surrounding both of the Earth’s poles, according to the National Weather Service. The term “vortex” refers to the circulation of air that helps keep the colder air near the Poles. This vortex has always existed and is not something new.

Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar vortex affects the weather.

Houston, Texas, is experiencing below-average temperatures as a polar vortex ushers in cooler ... chill gripping the region. The National Weather Service predicts a 40% chance of showers ...

A powerful polar vortex is set to blanket the Big Apple with six inches of snow Sunday afternoon, ushering in bone-chilling low temperatures with minus-15-degree wind chills that will stick around well into the coming week.

The state's Governor Phil Murphy made the announcement Saturday night ahead of an Arctic Blast which is set to barrel in on Sunday morning across the East Coast.

Brace yourselves. After a relatively mild start to the weekend, Sunday is scheduled to drop as much as 2 to 4 inches of snow on the Baltimore area — right before temperatures plummet into the single digits Monday night.

NEW YORK (PIX11) — A winter storm will affect New York and the surrounding area starting Sunday. From 1 p.m. Sunday to 4 a.m. Monday, the tri-state area is expected to be hit with snow, according to the National Weather Service. “If you must travel, keep an extra flashlight, food, and water in your vehicle […]

The first of the three is to drop snow and rain over parts of the Midwest and Northeast on Saturday and is likely to impact Indianapolis, Detroit and Cleveland.