


Special Marine Warning
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
942 WHUS52 KCHS 121645 SMWCHS AMZ330-350-370-121815- /O.NEW.KCHS.MA.W.0042.250512T1645Z-250512T1815Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Charleston SC Issued by National Weather Service Columbia SC 1245 PM EDT Mon May 12 2025 The National Weather Service in Charleston has issued a * Special Marine Warning for... Charleston Harbor... Coastal waters from South Santee River to Edisto Beach SC out 20 nm... Waters from South Santee River SC to Edisto Beach SC extending from 20 nm to 40 nm... * Until 215 PM EDT. * At 1243 PM EDT, a shower capable of producing waterspouts was located near Kiawah Reef, or 10 nm east of N. Edisto Nearshore Reef, moving north at 25 knots. Additional showers with gusty winds were also occurring near Buoy 41004. HAZARD...Waterspouts and wind gusts 35 knots or greater. SOURCE...Radar indicated. IMPACT...Waterspouts can create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Capers Island Buoy... Joe Shuford Reef... Y-73 Reef... Capers Reef... Castle Pinkney... Crab Bank... Bulls Bay... Charleston Harbor Entrance... Bull Breakers... Charleston Nearshore Reef... Capers Mid Shelf... Cape Romain Reef... Air Force Reef... Jimmy Leland Tug... Lowcountry Anglers... Comanche Reef... South Santee River Entrance... Hector Reef... Edisto Buoy... Charleston Coastal Anglers... PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 3312 7927 3280 7863 3246 7898 3231 7928 3214 7950 3229 7990 3263 8006 3270 7991 3277 7999 3285 7994 3279 7984 3283 7976 3287 7972 3291 7964 3297 7965 3306 7956 3307 7950 3303 7946 3303 7940 3311 7936 TIME...MOT...LOC 1643Z 176DEG 25KT 3251 7990 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ JAQ