Its strength and position shift with the seasons, according to the National Weather Service. When the vortex is strong, the ...

The polar vortex is a broad, fast ribbon of cold air that encapsulates the Arctic high in the stratosphere. Stable, it ...

According to climate scientists, record levels of Arctic ice in 2025 could increase cold spells in the United States and ...

A rare and abrupt disruption in the Arctic polar vortex is expected to impact spring temperatures across Europe and parts of the United States. Scientists are monitoring the event closely, as the ...

As the polar vortex begins to stir, subtle clues point to the coming seasonal shift. So, when will freezing temperatures arrive in Indiana?

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. When will Wisconsin see its first ...

Summer may end on a cooler note for parts of the U.S., with meteorologists suggesting that a weakened polar vortex could ...

HOUSTON, Texas (KTRK) -- With this most recent freeze now behind us, many Houstonians are probably wondering if another freeze could impact them this winter. When it comes to freezes, forecasters ...

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps some of the coldest ...

Persistent blasts of Arctic air have been keeping it bitter cold. — -- Once again the relentless stretch of bitter cold battering Northeastern cities including Boston with record snow has many ...

The polar vortex is starting to stir up, bringing the earliest hints that the seasons are changing. When will Ohio see its first freeze?

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