Special Marine Warning Issued for Louisiana Coastal Waters
This alert is no longer in effect.
NOAA issued it on August 25, 2026, 3 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 coastal waters near the Mississippi River passes until 7:45 AM CDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Coastal Louisiana
- Issued
- August 25, 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 3 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 August 25 at 6:45 AM CDT until August 25 at 7:45 AM CDT.
Affected Areas
Coastal waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm and coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 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. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.
Expected Conditions
At 6:44 AM CDT, a severe thunderstorm was located near Southwest Pass of the Mississippi River and was nearly stationary. Hazard includes wind gusts 34 knots or greater. Small craft could be damaged in briefly higher winds and suddenly higher waves.
Timeline
The warning is in effect from 6:45 AM CDT to 7:45 AM CDT on August 25.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
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 (1,116 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 25, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.