Severe Severe Storm ● Closed

Special Marine Warning issued October 4 at 2:49PM CDT until October 4 at 3:45PM CDT by NWS New Orleans LA, United States of America

Event time: Oct 4, 2026 19:49 UTC Last updated: 6 days ago 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...
Coastal waters from Pascagoula Mississippi to Stake Island out 20
NM...

* Until 345 PM CDT.

* At 249 PM CDT, a severe thunderstorm capable of producing
waterspouts was located 9 NM southeast of Breton Sound, moving
northeast at 10 knots.

HAZARD...Waterspouts and wind gusts to 34 knots.

SOURCE...Radar indicated.

IMPACT...Waterspouts can easily overturn boats and create locally
hazardous seas. Small craft could be damaged in briefly
higher winds and suddenly higher waves.

* Locations impacted include...
Breton Sound.

Measurements

Coordinates	29.4740, -89.2200
Region	Breton Sound; Chandeleur Sound; Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm; Coastal waters from Pascagoula Miss
Location Precision	polygon
Issuing Authority	United States of America — us-noaa-nws-en-marine
Cap Urgency	Immediate
Cap Certainty	Likely
Cap Expires	2026-10-04T15:45:00-05:00

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

Also reported by: NWS NWS NWS NWS

This event as JSON · API and licence

Source updated 15 days ago (Oct 4, 2026 19:51 UTC) · we last heard from WMO Alert Hub (national weather services) 44 seconds 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.

Special Marine Warning — Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms Severe Severe Storm United States closed via NWS Sep 4, 2026 Severe Thunderstorm Warning — Page, VA; Rockingham, VA; Shenandoah, VA Severe Severe Storm United States closed via NWS Sep 4, 2026 Severe Thunderstorm Warning — Darke, OH; Miami, OH; Montgomery, OH; Preble, OH Severe Severe Storm United States closed via NWS Sep 4, 2026 Severe Thunderstorm Warning — Clarke, VA; Fauquier, VA; Loudoun, VA Severe Severe Storm United States closed via NWS Sep 4, 2026

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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.