Earlier onset of North Atlantic hurricane season with warming oceans

ABSTRACT: Numerous Atlantic basin tropical cyclones have recently developed prior to the official start of hurricane season, including several pre-season landfalls in the continental United States. Pre-season and early-season tropical cyclones disproportionately affect populated landmasses, often producing outsized precipitation impacts. Here we show a significant trend towards earlier onset of tropical cyclone activity in the North Atlantic basin, with threshold dates of the first three percentiles of accumulated cyclone energy shifting earlier at a rate exceeding five days decade−1 since 1979, even correcting for biases in climatology due to increased detection of short-lived storms. Initial threshold dates of continental United States named storm landfalls have trended earlier by two days decade−

SUBMITTER: Truchelut R 

PROVIDER: S-EPMC9381499 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature