Dorian (2013)

A strong tropical wave moved off the west coast of Africa on 22 July and organized into a tropical depression about 150 nautical miles south of the Cape Verde Islands at 1800 UTC 23 July. The system became Tropical Storm Dorian at 0600 UTC 24 July and moved generally west‑northwestward across the eastern and central tropical Atlantic. Dorian weakened into a trough east of the northern Leeward Islands on 27 July, its remnants moved west‑northwestward across the southeastern Bahamas and Turks and Caicos, re‑organized into a tropical depression on 2 August northwest of Freeport, Bahamas, and then degenerated into a remnant low by 1800 UTC 3 August southeast of Charleston, South Carolina. The remnant low was absorbed by a frontal trough off North Carolina on 4 August.

Dorian did not produce any reported landfalls as a tropical cyclone. The initial depression and the later re‑formed tropical depression passed near the Bahamas and moved between southeastern Florida and the northwestern Bahamas on 2–3 August, but no locations reported tropical‑storm‑force winds or an official tropical cyclone landfall in the NHC record. No tropical cyclone watches or warnings were issued.

The storm’s maximum sustained winds reached 50 knots (about 58 mph) at 0600 UTC 25 July, with a minimum central pressure near 1002 mb. At its peak Dorian was a moderate tropical storm (below hurricane strength). After peak, Dorian weakened as it moved over slightly cooler waters and encountered drier mid‑level air and moderate vertical wind shear.

Observed storm surge and rainfall impacts associated with Dorian were minimal in the official record. There were no reports of tropical‑storm‑force winds from ships or land stations, and the report does not list specific storm surge or large rainfall totals at named cities or counties. The system produced intermittent convection while passing north of the Leeward Islands, Puerto Rico, and across the Bahamas, but no significant coastal surge or extreme rainfall totals were documented in the NHC report.

There were no reported deaths or damage linked to Dorian. Forecasters noted that the storm’s initial development and the later re‑formation were not well anticipated in the Tropical Weather Outlook, although official NHC track and intensity forecast errors for this system were generally smaller than recent averages. No watches or warnings were required during the storm’s lifetime.