


Special Marine Warning
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
Versions:
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247 WHUS54 KLIX 211804 SMWLIX GMZ550-552-211930- /O.NEW.KLIX.MA.W.0093.250521T1804Z-250521T1930Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service New Orleans LA 104 PM CDT Wed May 21 2025 The National Weather Service in New Orleans has issued a * Special Marine Warning for... Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm... Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM... * Until 230 PM CDT. * At 104 PM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near Grand Isle to 9 nm northwest of Terrebonne Bay. The severe thunderstorms were nearly stationary. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can quickly form and capsize boats...damage vessels and oil rigs...and create suddenly higher waves. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Caillou Bay, Terrebonne Bay, Grand Isle, Timbalier Island, Timbalier Bay, Barataria Bay, and Isle Derniers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds will be dangerous for boaters or anyone near the water. Make sure all on board are wearing life jackets. Seek shelter or move to safe harbor until hazardous weather passes. && LAT...LON 2927 9109 2926 9109 2932 9091 2924 9080 2916 9090 2913 9085 2918 9068 2924 9067 2938 9043 2915 9017 2919 9012 2938 9019 2945 8978 2927 8957 2926 8944 2910 8999 2904 9081 2904 9126 2926 9129 TIME...MOT...LOC 1804Z 304DEG 3KT 2929 9000 2926 9070 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ KLG