How Hurricane Isaias broke through to become the first Atlantic hurricane in an extremely quiet 2026 season

An atmospheric scientist explains what’s been going on in the atmosphere, and how El Niño and the jet stream both play important roles.

2026年大西洋颶風季異常平靜，直到10月9日才由Isaias在墨西哥灣北部沿岸登陸，形成當季首個颶風。作者用風切變與厄爾尼諾解釋平靜成因，並說明Isaias為何能在不利環境中生成增強。