NEW ORLEANS -- The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar ...

Americans have been warned to brace for more winter storms as Arctic winds are set to dump more ice and snow amid freezing temperatures.

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

As opposed to staying further north and maintaining a stable flow, in the event of a disruption in the polar vortex, the polar jet stream will often develop a wavy shape with dips and ridges.

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

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

The polar vortex is always around. It is a channel of strong winds high up in the atmosphere that circles the poles. One over ...

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 fierce winter storm swept through the southern US, causing extensive travel disruption and school closures. States grappled ...

Wind chill values are expected to drop below 10 degrees, with some locations seeing wind chills closer to zero. Forecasters ...

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 ...

Another polar vortex disruption will stretch Arctic air across the top of the globe and make Donald Trump’s second inauguration the coldest in 40 years, meteorologists said. After starting in ...