At least 17 states experienced some level of snowfall in the last 24 hours, National Weather Service data shows.

Forecasts indicate that the Arctic polar vortex will deliver frigid winds across large portions of the U.S. in the new year.

Areas with the most sustained warmth were around the toasty Gulf of Mexico and scattered inland across locations such as the ...

America. It's so much more than chants of "USA! USA! USA!" can possibly capture. It's a diverse empire of more than 327 ...

The countdown to the holidays is on, and if you're dreaming of a white Christmas, NOAA has a list of the locations most ...

Northern Lights are expected to dazzle skies on Christmas in the United States. The colorful auroras might be seen in ...

Forecasters are warning about a winter storm expected to bring heavy snow and dangerous ice from the Central Plains to the ...

One of the namesake proprietor's prized maps at William R. Talbot Fine Art shows California as a massive island off the coast of North America, with present-day Arizona boasting prime beachfront ...

The Apple Maps web app, still in public beta, includes features like directions, point-of-interest and business searches, map ...

Ohioans might be celebrating New Year's Eve with the northern lights after seeing them in May and October. See the aurora ...

More than 9,000 flights within, into or out of the United States were delayed, and more than 300 others were canceled as of ...

According to the research, many wildlife species in the U.S. will have to endure year-long droughts almost five times as ...