Special Marine Warning Issued for Coastal Waters off Louisiana
This alert is no longer in effect.
NOAA issued it on May 19, 2026, 3 months 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 from Port Fourchon LA to the Lower Atchafalaya River due to a severe thunderstorm with 40-knot winds and large hail.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Coastal Waters off Louisiana
- Issued
- May 19, 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 months ago; use the issuing agency's live warning service for current conditions in Coastal Waters off Louisiana.
Alert Details
A Special Marine Warning was issued by the National Weather Service in New Orleans on May 11, 2026, at 8:41 AM CDT. The alert is effective from 8:41 AM CDT until 10:15 AM CDT.
Affected Areas
The warning covers 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.
What You Should Do
Boaters should seek safe harbor immediately until this storm passes. If caught on the open water, stay below deck if possible and keep away from ungrounded metal objects.
Expected Conditions
A severe thunderstorm was located 15 nm northeast of Eugene Island 189, or 16 nm southwest of Caillou Bay, moving northwest at 15 knots. Hazards include wind gusts to 40 knots, large hail, high waves, dangerous lightning, and heavy rain.
Timeline
The alert is in effect from 8:41 AM CDT to 10:15 AM CDT on May 11, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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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 (945 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 19, 2026.
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Common questions about this NWS weather alert.