


Special Marine Warning
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
450 WHUS52 KCHS 111144 SMWCHS AMZ330-350-352-111245- /O.NEW.KCHS.MA.W.0148.250811T1144Z-250811T1245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Charleston SC 744 AM EDT Mon Aug 11 2025 The National Weather Service in Charleston has issued a * Special Marine Warning for... Waters from South Santee River SC to Savannah GA out 20 NM... Charleston Harbor... * Until 845 AM EDT. * At 744 AM EDT, strong thunderstorms were located along a line from 6 NM north of Saint Helena Sound to near Edisto Sixty Reef, moving north at 15 knots. HAZARD...Wind gusts to 34 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Deveaux Bank, N. Edisto Nearshore Reef, Edisto Forty Reef, Kiawah Reef, Edisto Sixty Reef, Wappoo Cut and Castle Pinkney. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 3257 8049 3253 8045 3255 8045 3262 8042 3261 8038 3258 8036 3256 8037 3251 8033 3258 8022 3264 8001 3271 7991 3274 7993 3276 7998 3278 7999 3277 7987 3230 8000 3242 8030 3248 8050 TIME...MOT...LOC 1144Z 193DEG 12KT 3254 8039 3250 8024 3235 8002 MAX HAIL SIZE...0.00 IN MAX WIND GUST...34 KTS $$ ST