NWS New Orleans LAMA.W 0334September 10, 2026
Special Marine Warning: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm and Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM
The National Weather Service office in New Orleans issued a special marine warning for Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm and Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM, which was in force until 7:15 a.m. local time on September 10. It was the 334th special marine warning the NWS office in New Orleans issued in 2026.
ExpiredWarning
In force for 1.4 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, New Orleans LA
- Area
- Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm and Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM
- Level
- Warning
- Issued
- 5:50 a.m. CDT, September 10, 2026
- Expires
- 7:15 a.m. CDT, September 10, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KLIX MA.W 0334
- Official source
- National Weather Service: the notice at its source
NWS notices, September 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
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 715 AM CDT. * At 550 AM CDT, a cluster of severe thunderstorms capable of producing waterspouts was located 20 nm east of Ship Shoal 198, or 23 nm south of Isle Derniers. The cluster of 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. * The cluster of severe thunderstorms will remain over mainly open waters.
What the agency told people to do
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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.