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年大西洋飓风季异常平静，直到10月9日才由Isaias在墨西哥湾北部沿岸登陆，形成当季首个飓风。作者用风切变与厄尔尼诺解释平静成因，并说明Isaias为何能在不利环境中生成增强。