The amount of snow the Gulf Coast States received makes this weather system the worst winter storm in over 120 years. Before ...
A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...
A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...
For both events, you can blame the jet stream – the fast-moving air currents that flow west to east around the globe. In October 2024, the polar jet had buckled, trapping a high-pressure ...