A weakened polar vortex is allowing frigid air to spill into portions of the U.S. this week, forecasters say. The National Weather Service Weather Prediction Center (WPC) warned in a Thursday update ...

There is a major weather pattern change underway across the U.S. As we get into next week, the storm track looks really interesting. Major upper-air pattern changes are quite normal. Sometimes we have ...

Cornell experienced up to 14 inches of snow amid Winter Storm Fern, which touched down in Tompkins County on Feb. 1 and lasted until Feb. 2. The National Weather Service issued hazardous weather ...

Record cold temperatures are once again expected to hit a swath of the country this weekend—even plunging Florida into its coldest stretch of the last 15 years, potentially bringing snow to areas of ...

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather ...

The polar vortex is sending arctic blasts and chilly temperatures to most of the United States, and states from Texas to Oklahoma could see snow, sleet and ice. As of Wednesday, Jan. 21, millions of ...

This week, New Jersey is set to experience temperatures below 10 as a shift in the polar vortex is letting Artic air slip south. Tuesday, Jan. 20 and Saturday, Jan. 24 are forecast to be the coldest ...

This story has been edited to correct an error. Judah Cohen is affiliated with the Massachusetts Institute of Technology. Our old wintertime friend the polar vortex ...

We finally have a blast of truly Arctic cold air heading toward Michigan. The actual cold, combined with stiff wind gusts early next week, will produce dangerously cold wind chills. Here is the ...

The ratio comparing total U.S. market cap to GDP, known as the Buffett Indicator, is reaching historic levels, both in absolute and relative terms. Its current reading of 230% is far beyond any peak ...

Don't be fooled by the string of uneventful weather — the polar vortex is rebooting and will take another swing, or several, at the greater Philadelphia region, leading to a turbulent weather pattern ...