Marine Thunderstorm Wind — Charleston Harbor, Atlantic South
2025-06-10 · near Fort Sumter, Charleston Harbor, Atlantic South
41 MG
Magnitude
Event narrative
The Weatherflow sensor at Fort Sumter Range Front Light measured wind gusts of at least 34 knots between 950 AM and 10 AM with a peak wind gust of 41 knots at 950 AM.
Wider weather episode
A mid-upper level disturbance traversing the Southeast in advance of a longwave trough encountered a moderately unstable environment, leading to severe thunderstorms capable of producing damaging wind gusts across coastal waters.
View location on OpenStreetMap → (32.7512, -79.8707)
Source: NOAA Storm Events Database, event_id 1279613. Narrative written by the NWS forecast office that issued the report.