Special Marine Warning Issued for Coastal Waters off Louisiana (Sep 1, 2026)
This alert is no longer in effect.
NOAA issued it on September 1, 2026, 2 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS New Orleans has issued a Special Marine Warning for coastal waters from Port Fourchon LA to Lower Atchafalaya River LA until 2:00 AM CDT due to severe thunderstorms capable of producing waterspouts.
This weather record, quickly
- Record type
- Special Marine Warning
- Affected area
- Coastal Waters off Louisiana
- Issued
- September 1, 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: historical. It was issued 2 weeks ago; use the issuing agency's live warning service for current conditions in Coastal Waters off Louisiana.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in New Orleans LA. The alert is effective from September 1, 2026 at 1:00 AM CDT until September 1, 2026 at 2:00 AM CDT.
Affected Areas
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. Locations impacted include Caillou Bay.
What You Should 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.
Expected Conditions
A cluster of severe thunderstorms capable of producing waterspouts was located 12 nm southwest of Caillou Bay, moving north at 35 knots. Hazards include waterspouts and wind gusts 34 knots or greater.
Timeline
The warning is in effect from 1:00 AM CDT to 2:00 AM CDT on September 1, 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 (1,037 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 1, 2026.
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