NWS feedSource freshLast successful check:
Ended official alertUpdated

Special Marine Warning for Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

SMWLIX The National Weather Service in New Orleans has issued a * Special Marine Warning for... Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM... * Until 700 AM CDT. * At 536 AM CDT, a severe thunderstorm was located 45 nm south of Louisiana Offshore Oil...

What the bulletin says to 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.

Full official description

Bulletin details

SMWLIX The National Weather Service in New Orleans has issued a * Special Marine Warning for... Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM... * Until 700 AM CDT. * At 536 AM CDT, a severe thunderstorm was located 45 nm south of Louisiana Offshore Oil Port, or 54 nm southwest of Southwest Pass Of the Mississippi River, moving south at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * The severe thunderstorm will remain over mainly open waters.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Special Marine Warning issued July 21 at 5:38AM CDT until July 21 at 7:00AM CDT by NWS New Orleans LA

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS New Orleans LA. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections