GMZ400-010900-
309 PM CDT Sun May 31 2026
.Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote
Blanche Bays...
Ridging will remain over Gulf waters to bring about light to
occasionally moderate onshore winds, low seas and nearshore
diurnal showers. Towards the midweek, upper low pressure will
place a weak boundary near the north Gulf coastline, increasing
rain chances and seas on increasing pressure gradient. Winds will
turn to the east and seas increase late in the work week in
response to this boundary and to high pressure developing over the
southeast US.
$$
GMZ475-010900- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 309 PM CDT Sun May 31 2026 TONIGHT Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. MONDAY South winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. MONDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms after midnight. TUESDAY Southeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers in the morning. TUESDAY NIGHT Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 7 seconds. A slight chance of showers. WEDNESDAY East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 7 seconds. A slight chance of showers and thunderstorms. WEDNESDAY NIGHT East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. THURSDAY East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers and thunderstorms. THURSDAY NIGHT Southeast winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. FRIDAY Southeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. FRIDAY NIGHT Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$
GMZ475-010900- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 309 PM CDT Sun May 31 2026 TONIGHT Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. MONDAY South winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. MONDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms after midnight. TUESDAY Southeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers in the morning. TUESDAY NIGHT Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 7 seconds. A slight chance of showers. WEDNESDAY East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 7 seconds. A slight chance of showers and thunderstorms. WEDNESDAY NIGHT East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. THURSDAY East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers and thunderstorms. THURSDAY NIGHT Southeast winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. FRIDAY Southeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. FRIDAY NIGHT Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$