Special Marine Warning Issued for Terrebonne Bay and Coastal Louisiana Waters (Sep 1, 2026)
This alert is no longer in effect.
NOAA issued it on September 1, 2026, 13 days 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 waterspouts and wind gusts 34 knots or greater until 1:00 AM CDT.
The weather record, at a glance
- Record type
- Special Marine Warning
- Affected area
- Coastal 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 13 days ago; use the issuing agency's live warning service for current conditions in Coastal Louisiana.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in New Orleans. The alert is effective from 11:04 PM CDT on August 31, 2026, until 1:00 AM CDT on September 1, 2026.
Affected Areas
The warning covers Terrebonne Bay; 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. Impacted locations include Isle Derniers, Caillou Bay, and Timbalier Island.
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 near Isle Derniers, moving northwest at 45 knots. Hazards include waterspouts and wind gusts 34 knots or greater.
Timeline
The alert is in effect from 11:04 PM CDT August 31 until 1:00 AM CDT September 1.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,102 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 1, 2026.
Common Questions
What people usually ask about a notice like this one.