WASHINGTON — We are in the middle of a blast of extreme cold weather in D.C. The polar vortex has shifted, spilling cold air ...

Many Floridians in Tallahassee witnessed snow for the first time, taking the chance to start snowball fights and build snowmen, WCTV reported. However, snow turned to sleet and left behind frozen cars ...

A cold snap stretching from eastern Alberta to Atlantic Canada was in full swing Tuesday and Wednesday, in some cases straining power grids, but a brief reprieve from the extreme temperatures is ...

When there are disturbances in which the Jet Stream weakens, it can become wobbly. This allows the cold air to plunge southwards. A disrupted polar vortex does not happen every year. Very much so what ...

It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the ...

Unprecedented snowfall hits the U.S. South. Discover how this winter storm is setting new records and causing rare blizzard ...

This cold was certainly extraordinary, but the polar vortex event of January 2019 brought life in the northern and central United States to a frozen halt. At that time in our area, the coldest actual ...

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

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures.

A winter storm brought the Lehigh Valley its biggest snowfall of the winter so far before temperatures become dangerously ...

Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures ...

A polar vortex disruption brings extreme cold to the US, with subzero wind chills, snow, and ice threatening widespread travel disruptions and prompting Trump’s inauguration ceremony to move indoors ...