Special Marine Warning Issued for Louisiana Coastal Waters
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NWS New Orleans has issued a Special Marine Warning for multiple coastal water zones due to severe thunderstorms with 40-knot wind gusts until 10:30 PM CDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Coastal Waters of Louisiana
- Issued
- August 22, 2026
- Issuing authority
- NWS New Orleans LA
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in New Orleans LA. The alert is effective from 9:28 PM CDT on August 21, 2026, until 10:30 PM CDT on August 21, 2026.
Affected Areas
The warning covers 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; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM; and Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM.
What You Should Do
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.
Expected Conditions
At 9:27 PM CDT, a cluster of severe thunderstorms was located along a line extending from near Southwest Pass Of the Mississippi River to 13 nm southwest of Louisiana Offshore Oil Port to 17 nm southeast of Isle Derniers to 10 nm east of Eugene Island 120, moving south at 30 knots. Hazard includes wind gusts to 40 knots.
Timeline
The alert is in effect until 10:30 PM CDT on August 21, 2026.
Original source: NOAA Official Notice ↗
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,257 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 22, 2026.
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