Is A Polar Vortex Coming In 2025 Predictions. As you can see, a la niña phase has a higher chance of producing a polar vortex collapse event. Cajoling an artificial intelligence to do useful things is a real job.

The weakest polar vortex years (dark green dots) occur in easterly qbo winters. A weaker polar vortex usually means a weaker jet stream, which increases the chance of a more dynamic (colder/snowy) winter pattern over the united states, canada, and/or europe.