Coastal Waters Forecast for Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM (GMZ572) (Text-Only)
NWS Forecast for: Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM (GMZ572)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 537 PM CDT Wed Oct 7 2026




Tonight: Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave detail: northeast 7 feet at 7 seconds. Showers likely with a slight chance of thunderstorms this evening, then a chance of showers and thunderstorms after midnight.

Thursday: Tropical storm conditions possible. East winds 20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave detail: east 8 feet at 7 seconds. Showers likely with a chance of thunderstorms.

Thursday Night: Tropical storm conditions possible. East winds 25 to 30 knots with gusts up to 40 knots. Seas 8 to 9 feet, occasionally to 11 feet, building to 9 to 11 feet, occasionally to 14 feet after midnight. Wave detail: east 11 feet at 8 seconds. A chance of thunderstorms. Showers.

Friday: Tropical storm conditions possible with hurricane conditions also possible. Northeast winds 25 to 30 knots with gusts up to 45 knots. Seas 11 to 15 feet, occasionally to 19 feet, building to 14 to 19 feet, occasionally to 24 feet in the afternoon. Wave detail: northeast 19 feet at 12 seconds. A chance of thunderstorms. Showers.

Friday Night: Tropical storm conditions possible. North winds 25 to 30 knots with gusts up to 40 knots, becoming northwest 15 to 20 knots with gusts up to 25 knots after midnight. Seas 14 to 17 feet, occasionally to 22 feet, subsiding to 8 to 11 feet, occasionally to 14 feet after midnight. Wave detail: northeast 17 feet at 12 seconds and north 8 feet at 7 seconds. Showers with a chance of thunderstorms.

Saturday: Northwest winds 5 to 10 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet, occasionally to 6 feet in the afternoon. Wave detail: southeast 7 feet at 9 seconds and northwest 2 feet at 5 seconds. A chance of thunderstorms early in the morning. Showers. A slight chance of thunderstorms late in the morning.

Saturday Night: North winds around 5 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 7 seconds and northwest 2 feet at 4 seconds. Showers likely early in the evening, then a chance of showers in the late evening and overnight.

Sunday: Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds and west 1 foot at 4 seconds. A chance of showers.

Sunday Night: East winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 6 seconds. A chance of showers early in the evening. A chance of showers after midnight.

Monday: East winds around 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 5 seconds. A chance of showers.

Monday Night: East winds 5 to 10 knots. Seas around 2 feet. A chance of showers early in the evening.

winds and seas higher in and near thunderstorms.







Zone Forecast: Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM (GMZ572)

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