Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.

Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the ...

"The level and extensiveness of the frigid air may be tough to match the rest of the winter," forecasters warned.

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

Forecasters have released new details on timing and expected snowfall for Sunday's winter storm in Virginia. See the latest.

The NWS has issued storm and extreme cold warnings this weekend as powerful Arctic winds plunge temperatures nationwide.

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

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

Temperatures will plummet as Arctic outbreak brings frigid weather to much of the U.S. Much of the United States will see ...

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