Special Marine Warning for Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM; Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM
Official alert fields
What you need to know
- Applies to
- Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM, Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
For the following areas... Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM... Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM... At 1134 AM CDT, a cluster of severe thunderstorms capable of producing...
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
For the following areas... Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM... Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM... At 1134 AM CDT, a cluster of severe thunderstorms capable of producing waterspouts were located 17 nm southeast of Louisiana Offshore Oil Port, or 25 nm southwest of Southwest Pass Of the Mississippi River. The a cluster of severe thunderstorms were nearly stationary. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar indicated. 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... Louisiana Offshore Oil Port.
Lifecycle record
Official revisions
- Update
Special Marine Warning issued August 21 at 11:34AM CDT until August 21 at 12:15PM CDT by NWS New Orleans LA
Official revision - Alert
Special Marine Warning issued August 21 at 10:52AM CDT until August 21 at 12:15PM 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
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- Last collected