The Arctic is undergoing profound environmental shifts, marked by unprecedented warming and ecosystem changes. A critical ...

The most potent blast will enter the north-central U.S. on Friday, the National Weather Service warned, before roaring across much of the rest of the nation over the weekend.

A high-pressure weather system is pushing a mass of Arctic air down from Canada into the central U.S. beginning on Tuesday, the National Weather Service said, which is expected to cause ...

The National Weather Service warned that the Arctic airmass is delivering the coldest temperatures since last winter. Wind chills in the northern Plains and upper Midwest are expected to plunge ...

The National Weather Service has issued a Winter Weather Advisory for areas in Central Maryland for Friday afternoon ahead of the chance for wintry weather. 1-2" of snow is possible in these areas ...

The Arctic air will blast across the the Midwest ... "High temperatures the next couple of days will be roughly 10 to as much as 30 degrees below normal," National Weather Service forecaster Mark ...

The coldest nights of the winter to date are forecast for this week in the Tri-Cities by the National Weather Service.. Arctic air moving into Eastern Washington will drop the low to 11 degrees ...

This week’s weather is the result of another arctic push from the north that Temeyer of the National Weather Service said has made for an uncharacteristically cold, snowy season in the Kansas ...

Subzero temperatures, wind and snow are headed for Denver this weekend, according to the National Weather Service. JAN. 15 UPDATE: How cold will it get when arctic blast hits this weekend?

Arctic air pumped from the north will plunge temperatures across parts of the U.S., ... They can produce icy road conditions in a matter of minutes, according to the National Weather Service ...

The National Weather Service has been working around the clock looking at a variety of data, radar information, and crafting social media posts to keep the public informed about the winter weather.