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Ended official alertUpdated

Special Marine Warning for Terrebonne Bay; 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

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 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... Terrebonne Bay... * Until 1100 PM CDT. * At...

What the bulletin says to do

Strong winds will be dangerous for boaters or anyone near the water. Boaters should avoid waterspouts and never try to navigate near them. 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 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... Terrebonne Bay... * Until 1100 PM CDT. * At 1004 PM CDT, a cluster of severe thunderstorms capable of producing waterspouts was located along a line extending from near Atchafalaya Bay to near Isle Derniers to 36 nm southwest of Louisiana Offshore Oil Port, moving northwest at 20 knots. 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. * Locations impacted include... Isle Derniers and Caillou Bay.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Special Marine Warning issued August 31 at 10:04PM CDT until August 31 at 11:00PM 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