List of Atlantic tropical storms

In the North Atlantic Ocean, the classification tropical storm is used to refer to a tropical cyclone with 1-minute maximum sustained wind speeds from 39 mph (63 km/h) to 72 mph (117 km/h). Tropical cyclones that attain such winds and move over land while maintaining those winds are capable of causing minor to moderate damage to human lives and infrastructure. Since HURDAT began in 1851, there have been 553 tropical storms recorded,^{[nb 1][1]} as well as 37 others not recognized by HURDAT, but recognized by the International Best Track Archive for Climate Stewardship (IBTrACS) as possible tropical storms,^[2] in the North Atlantic basin, which is denoted as the part of the Atlantic Ocean north of the equator. This list does not include tropical storms that later intensified into hurricanes.

The development of tropical storms in the North Atlantic basin is influenced by many factors. During the Northern Hemisphere winter and spring months of December to April, sea surface temperatures in the tropics are usually too low to support tropical cyclogenesis, and there are multiple high-pressure systems, such as the Azores High, that also inhibit tropical cyclogenesis. These effects are reduced or even disappear during hurricane season from May to November, when sea surface temperatures are also high enough to support tropical cyclogenesis; the bulk of recorded tropical storms developed during June to November. Global weather patterns may also influence hurricane development in the North Atlantic. El Niño events result in reduced numbers of powerful hurricanes through stronger wind shear and lower sea surface temperatures within the basin, while La Niña events increase the number of such hurricanes through the opposite.

Cite error: There are <ref group=nb> tags on this page, but the references will not show without a {{reflist|group=nb}} template (see the help page).