INDIANAPOLIS (WISH) — The El Niño Southern Oscillation (ENSO) is a large-scale climate pattern that has an impact on the average jet stream position in the US. A weak La Niña has been present since ...

Tree-ring data reveal that periodic shifts in strong winds high above the Earth's surface have driven opposite climates in different parts of Europe for the past 700 years and likely much longer, ...

When the polar jet stream is situated south of your location, the weather usually will be colder and stormier than normal. When the polar jet stream moves to the north of your location, warmer and ...