Marine Thunderstorm Wind — Charleston Harbor, Atlantic South
2025-06-25 · near The Charleston Battery, Charleston Harbor, Atlantic South
41 MG
Magnitude
Event narrative
The National Weather Service observation site in Downtown Charleston (KCXM) measured wind gusts of at least 34 knots between 8 PM and 830 PM with a peak wind gust of 41 knots at 810 PM.
Wider weather episode
Showers and thunderstorms congealing north-northwest of the region eventually tracked south into the local area, encountering a highly unstable airmass displaying large downdraft CAPE and strong mid-level lapse rates, leading to severe thunderstorms capable of producing damaging wind gusts across coastal waters.
View location on OpenStreetMap → (32.7750, -79.9239)
Source: NOAA Storm Events Database, event_id 1279623. Narrative written by the NWS forecast office that issued the report.