Even in a warming climate, brutal cold snaps still hammer parts of the U.S., and a new study uncovers why. High above the ...

Stratospheric polar vortex changes still trigger brutal U.S. winter cold snaps and extreme weather despite a warming climate.

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

The polar vortex appears to be on the move. That’s because stratospheric warming is occurring at high altitudes above the North Pole, resulting in a spike in temperatures.

An Arctic air mass that overtakes the whole country isn’t too common, largely because the Rockies act as a good blocking mechanism. The way this one initially enters along the Continental ...

Three surges of Arctic air will chill the United States over the next two weeks, each one more significant than the last. Accessibility statement Skip to main content. Democracy Dies in Darkness.

The Arctic air will begin to lose its grip on us as we go into the holiday week and there are some signs by New Year’s Eve we can easily be in the middle 60s. Suggest a Correction ...

A storm overhead is departing late Friday with arctic air in tow. Temperatures fall sharply tonight with snow and bitter wind-chills developing SOGGY WEEK We’re nearing one inch of rain Friday.

We also have some ice on the Great Lakes which makes it easier for Arctic air to invade. RELATED: Winter Storm Update: 4 things changed overnight. Here’s the forecast of the Polar Vortex lobe.

The arctic air will remain in place next week, with morning temperatures in the 20s and afternoon highs near 40. Wind chills will continue to drop into the teens on Tuesday and Wednesday mornings ...

A dangerously cold Colorado weekend is approaching. Arctic air with windchills as cold as 30 degrees below zero is set to blanket Denver, and it will bring some snow. We are still 72 hours away ...

February 1996's Arctic air by the numbers Iowa's all-time record low tied (-47° in Elkader on Feb. 3)132 hours straight of temps at or below 0° (Des Moines' longest stretch since hourly data ...