If we take a peek at the tropopause you can see a sliver of the polar vortex — the light gray and white in the map below — funneling south Sunday morning. At the same time, a weak jet stream ...

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 ...

“Whether or not climate change is affecting the jet stream has changed over time,” said Pam Knox, agricultural climatologist with the extension office at the University of Georgia. “There's ...