A powerful polar vortex slams an already-frozen state as NOAA warns the deep freeze could last for weeks, bringing extreme ...

The stratospheric polar vortex is expected to strengthen at the beginning of 2026. This phenomenon typically leads to the following conditions: Reduced likelihood of extended cold air outbreaks across ...

Arctic sea ice is melting at an accelerated rate, leading to a warmer ocean that absorbs more sunlight. This loss of ice disrupts the polar vortex, potentially causing colder Arctic air to spill south ...

The event displaced the polar vortex bringing much colder weather to portions of North America. The impact of these ...

The polar night jet, the high-altitude winter wind that circles the Arctic, acts like a flywheel for the cold season in the ...

This winter will be marked by a La Niña event, warmer North Pacific waters, and an undulating polar vortex where cold air ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...