Severe Severe Storm ● Closed
Special Marine Warning issued September 10 at 5:50AM CDT until September 10 at 7:15AM CDT by NWS New Orleans LA, United States of America
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...
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA
out 20 nm...
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 NM...
* Until 715 AM CDT.
* At 550 AM CDT, a cluster of severe thunderstorms capable of
producing waterspouts was located 20 nm east of Ship Shoal 198, or
23 nm south of Isle Derniers. The cluster of severe thunderstorms
were nearly stationary.
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.
* The cluster of severe thunderstorms will remain over mainly open
waters.
Measurements
| Coordinates | 28.6333, -90.8933 |
|---|---|
| Region | Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA fro |
| Location Precision | polygon |
| Issuing Authority | United States of America — us-noaa-nws-en-marine |
| Cap Urgency | Immediate |
| Cap Certainty | Likely |
| Cap Expires | 2026-09-10T07:15:00-05:00 |
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 reportThis event as JSON · API and licence
Source updated 39 days ago (Sep 10, 2026 10:51 UTC) · we last heard from WMO Alert Hub (national weather services) 11 seconds ago
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