Severe · Special Marine WarningThis alert has expired. It is kept for reference.
Special Marine Warning issued September 1 at 1:00AM CDT until September 1
Affecting Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM
In effect until: Sep 1, 2026, 7:00 AM
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM
Likely impact; effects through 7:00 AM.
Strong winds will be dangerous for boaters or anyone near the water. Boaters should avoid waterspouts and never try to navigate near them. Make sure all on board are wearing life jackets. Seek shelter or move to safe harbor until hazardous weather passes.
Read the original bulletin (official text)
SMWLIX 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 Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM... * Until 200 AM CDT. * At 100 AM CDT, a cluster of severe thunderstorms capable of producing waterspouts was located 12 nm southwest of Caillou Bay, moving north at 35 knots. 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.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™