Severe Severe Storm ● Closed

Special Marine Warning issued September 7 at 10:16AM CDT until September 7 at 11:15AM CDT by NWS New Orleans LA, United States of America

Event time: Sep 7, 2026 15:16 UTC Last updated: Sep 16, 2026 United States

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

SMWLIX

The National Weather Service in New Orleans has issued a

* Special Marine Warning for...
Breton Sound...
Chandeleur Sound...
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm...

* Until 1115 AM CDT.

* At 1016 AM CDT, a cluster of severe thunderstorms capable of
producing waterspouts was located over Breton Sound, moving west at
15 knots.

HAZARD...Waterspouts and wind gusts 34 knots or greater.

SOURCE...Radar.

IMPACT...Waterspouts can quickly form and capsize boats...damage
vessels and oil rigs...and create suddenly higher waves.
Small craft could be damaged in briefly higher winds and
suddenly higher waves.

* Locations impacted include...
Breton Sound, Empire, and Port Sulphur.

Measurements

Coordinates	29.6540, -89.5060
Region	Breton Sound; Chandeleur Sound; Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm
Location Precision	polygon
Issuing Authority	United States of America — us-noaa-nws-en-marine
Cap Urgency	Immediate
Cap Certainty	Likely
Cap Expires	2026-09-07T11:15:00-05:00

Official source

Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by WMO Alert Hub (national weather services).

View original report

This event as JSON · API and licence

Source updated 42 days ago (Sep 7, 2026 15:17 UTC) · we last heard from WMO Alert Hub (national weather services) 1 minute ago

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Official authorities in United States

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Earlier severe storm events in United States

Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.

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Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.