Coastal Waters Forecast for Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ551) (Text-Only)
NWS Forecast for: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ551)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 537 AM CDT Sun Oct 11 2026
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Today: East winds 5 to 10 knots. Seas 1 to 2 feet this morning, then 1 foot or less. Wave detail: southeast 2 feet at 6 seconds, becoming southeast 1 foot at 2 seconds and southeast 1 foot at 6 seconds.

Tonight: Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds and southeast 1 foot at 3 seconds.

Monday: East winds around 10 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 6 seconds.

Monday Night: Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas around 2 feet. Wave detail: southeast 2 feet at 5 seconds.

Tuesday: Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 5 seconds.

Tuesday Night: Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 5 seconds.

Wednesday: East winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds.

Wednesday Night: East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds.

Thursday: East winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds.

Thursday Night: East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 6 seconds.







Zone Forecast: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ551)

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