Ranked dead last, or perhaps not mentioned at all, would probably be the only state that sits partly within the Arctic Circle: Alaska. But 2025 is off to an interesting start as far as the weather is concerned.

The weather flow is gradually changing now and as we head into early February. Our storm systems will come from the west and southwest. One weather change that brings Michigan is a very up-and-down temperature pattern. If you look at the forecast of the upper-air flow over the next 15 days you will get the idea of a lot of changes in our weather.

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this active winter pattern is setting the stage for an even colder February.

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the record-breaking blast of cold, snow and wintry conditions that reached all the way to the Gulf Coast this week.

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need to know.

A brutal polar vortex is set to bury the Big Apple in snow Sunday and then deliver deadly single-digit temperatures that will feel like 15 degrees below zero.

Anytime we get an Arctic air blast down this far south, this is an artifact of the polar vortex rearing its ugly head,” said climatologist Barry Keim .

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and it’s as dramatic as it sounds. As many as 47 states will experience unseasonably cold temperatures. Some areas will be hit with dangerous wind chills as low as 40 below zero.

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary between Arctic and more temperate air – dips deeply southward, bringing the cold Arctic air to regions that don’t often experience it.

Winter is making its presence known in New York City, as the polar vortex is bringing brutally cold temperatures to the Tri-State area. But is relief on the way?