Add Yahoo as a preferred source to see more of our stories on Google. This week, New Jersey is set to experience temperatures below 10 as a shift in the polar vortex is letting Artic air slip south.

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex collapsed, and severe temperatures are set to dominate most of the country in the coming days. Single-digit ...

A polar vortex break causes bitter cold across the northern U.S. It’s a regular winter phenomenon, sending Arctic air southward during weakened polar winds. The break results from sudden stratospheric ...

A potentially major snow storm this weekend could give way to a blast of Arctic air for the second consecutive week. The next polar vortex impact is expected to follow a storm that could dump 6 inches ...

A cold snap has kept high temperatures below freezing and overnight lows in the negative in Bucks County since a Jan. 26 snow storm came thorugh the area, but severe temperatures are expected to ...

The polar vortex has broken, and severe temperatures are set to dominate most of the country in the coming days. Temperatures in the 10s are forecast for much of the Northeast, and subzero ...

After light flurries across Delaware on Feb. 6, the weekend is bringing frigid temperatures and wind chills in the negatives. A polar vortex moving through the country is pushing cold air into the ...

Cold air invades North Carolina this weekend as a snowstorm takes shape. A Winter Storm Watch is in effect for the risk of heavy pockets of snowfall across the Piedmont Triad. Slippery travel will ...