Excess stratospheric H2O has been shown to preferentially cool the extratropical stratosphere, resulting in poleward displaced jets & an expanded/weaker Hadley Cell; a signature of a La Niña-like tropospheric circulation patternhttps://t.co/QdrcHG0Qb9https://t.co/RPvepnN96z

— Eric Webb (@webberweather) August 26, 2022