Research Links Climate Change to Lazier Jet Stream, Leading to Extreme Weather BY COLUMBIA CLIMATE SCHOOL |JULY 14, 2023    Comments Jet streams are relatively narrow bands of strong wind in the upper atmosphere, typically occurring around 30,000 feet, and blowing west to east. Their normal flows lead to week-to-week weather variations, modulated in the mid-latitudes by ridges and troughs in the jet stream. A high-pressure ridge, for example, produces clear, warmer weath