It’s a pattern responsible for holding back the coldest temperatures on the planet. The lowest readings ever recorded in Canada and around the northern hemisphere occurred when this Arctic feature ...

Winter 2026/2027 forecasts show a strong Super El Niño pattern across the United States and Canada, with snowfall and Polar ...

Snow season has gotten off to a fast start across swaths of the northern United States this year. Fueled in part by an unusually early disruption to the polar vortex — which is now easing — 18 states ...

El Niño's record-breaking force could enter a chaotic dance with another wintertime powerhouse: The polar vortex.

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 later this week ...

While researchers have sometimes connected weather extremes to man-made global warming, usually it's not done in real time. Now a study is asserting a link between climate change and both the ...

Southern California's late winter heat wave is seeing a slight dip before another burst of dangerously hot weather arrives next week. Nearly every part of the United States is getting walloped by wild ...