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NWS New Orleans LAMA.W 0340September 21, 2026

Special Marine Warning: Mississippi Sound, Chandeleur Sound and Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM

The National Weather Service office in New Orleans issued a special marine warning for Mississippi Sound, Chandeleur Sound and Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM, which was in force until 10:45 p.m. local time on September 21. It was the 340th special marine warning the NWS office in New Orleans issued in 2026.

ExpiredWarning

Issued10:02 p.m. CDT, September 21, 2026
In force10:02 p.m. CDT, September 21, 2026
Expired10:45 p.m. CDT, September 21, 2026

In force for 43 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, New Orleans LA
Area
Mississippi Sound, Chandeleur Sound and Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM
Level
Warning
Issued
10:02 p.m. CDT, September 21, 2026
Expires
10:45 p.m. CDT, September 21, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KLIX MA.W 0340
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... Mississippi Sound... Chandeleur Sound... Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM... * Until 1045 PM CDT. * At 1002 PM CDT, strong thunderstorms were located along a line from 9 NM northeast of Pascagoula to near Gulfport, moving south at 25 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... Mississippi Sound, Gulf Park Estates, Ocean Springs, Ship Island, Horn Island, Biloxi, Pascagoula, Cat Island and Gulfport.

What the agency told people to do

Move to safe harbor until hazardous weather passes. Boaters should seek safe harbor immediately until these storms pass. Wind gusts 34 knots or greater, high waves, dangerous lightning, and heavy rain are possible with these storms.

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.

The record around this notice