U.S. President Donald Trump suggested Sunday that American forces "could get involved" in the intensifying military conflict that Israel started late last week with a barrage of attacks on Iran, ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

Add Yahoo as a preferred source to see more of our stories on Google. It's about to get even colder in the South, thanks to polar vortex activity heading to parts of the United States. And it is just ...

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 ...

After an extended May preview, the "false spring" in the eastern United States is over, and is being replaced by more typical chilly March weather (for now). Highs in the 60s, 70s and 80s are being ...

Boston has seen just one day so far this month where the average temperature was above the seasonal norm, daring me to ask — are you over the cold yet? Astronomical winter hasn’t even arrived (that ...

Our first true shot of winter arrives late Sunday and spills into the first half of next week. I’m not talking about snow. Instead, a shot of Arctic air will plunge south into the United States from ...

The "polar vortex" talk becomes really popular each year. It usually doesn't surface until winter. Still, this season, the eastern U.S. is getting a shot of frigid air as this infamous polar vortex ...

A disrupted polar vortex is expected to bring prolonged cold air to Ohio well into March. Forecasts suggest temperatures could drop 20 to 30 degrees below normal with an increased risk of snow. The ...

Bitingly cold Arctic air keeps pummeling the U.S. with ruthless cold snaps—despite warming winters nationwide. A study explains why: the solution lies far above your head, in the upper atmosphere ...

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 ...

Despite being involved in various space exploration efforts at various levels, Europe only has a bunch of homemade rockets it can rely on to advance its goals beyond the borders of our planet. The ...