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Coastal Waters Forecast for Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM (GMZ552) (Text-Only)
NWS Forecast for: Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM (GMZ552)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 1226 AM CDT Sun Aug 31 2025		Print

Rest Of Tonight: Northeast winds around 5 knots. Seas 1 foot or less. Wave detail: east 1 foot at 4 seconds. A slight chance of showers and thunderstorms, then a chance of showers and thunderstorms late.

Sunday: Northeast winds 5 to 10 knots. Seas 1 foot or less, then 1 to 2 feet in the afternoon. Wave detail: northeast 1 foot at 4 seconds, becoming northeast 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers.

Sunday Night: East winds 10 to 15 knots. Seas around 2 feet. Wave detail: east 2 feet at 3 seconds. A chance of showers and thunderstorms.

Monday: Northeast winds 10 to 15 knots. Seas around 2 feet. Wave detail: east 2 feet at 4 seconds. A chance of thunderstorms. Showers.

Monday Night: East winds 10 to 15 knots. Seas around 2 feet. Wave detail: east 2 feet at 4 seconds. Showers likely with a chance of thunderstorms.

Tuesday: East winds around 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 4 seconds. Showers likely with a chance of thunderstorms.

Tuesday Night: East winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: east 2 feet at 4 seconds. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight.

Wednesday: Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: northeast 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning.

Wednesday Night: South winds 5 to 10 knots, becoming west after midnight. Seas 1 foot or less. Wave detail: east 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight.

Thursday: Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave detail: northeast 1 foot at 2 seconds and northwest 1 foot at 2 seconds. A slight chance of showers and thunderstorms.

Thursday Night: West winds around 5 knots. Seas 1 foot or less.

winds and seas higher in and near thunderstorms.






Zone Forecast: Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM (GMZ552)

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