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Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM Marine Forecast

Updated 5:36am CDT Apr 16, 2026
Zone Map
Today
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 7 seconds.
Tonight
South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 7 seconds.
Friday
Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 6 seconds.
Friday Night
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds.
Saturday
South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
Saturday Night
South winds 5 to 10 knots, becoming west 10 to 15 knots after midnight. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 5 seconds. A slight chance of showers and thunderstorms after midnight.
Sunday
Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 4 seconds. A slight chance of showers and thunderstorms in the morning.
Sunday Night
Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 5 seconds.
Monday
East winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds.
Monday Night
East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds.