GMZ400-210700-
1220 PM CST Thu Nov 20 2025
.Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote
Blanche Bays...
Periods of breezy to moderate onshore flow will prevail over much
of the period with winds only turning offshore around the start of
next work week with the passage of a cold front system.
$$
GMZ455-210700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1220 PM CST Thu Nov 20 2025 SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 6 PM CST THIS EVENING THROUGH LATE TONIGHT TONIGHT Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers. A chance of thunderstorms after midnight. FRIDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms in the morning. FRIDAY NIGHT Southwest winds around 5 knots. Seas 1 to 2 feet in the evening, then 1 foot or less. Wave Detail: South 1 foot at 5 seconds. SATURDAY Southwest winds around 5 knots. Seas 1 foot or less. A slight chance of showers in the afternoon. SATURDAY NIGHT West winds around 5 knots, becoming north after midnight. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. SUNDAY Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds and southwest 1 foot at 3 seconds. SUNDAY NIGHT Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. MONDAY Southeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers in the afternoon. MONDAY NIGHT South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. TUESDAY Southwest winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. A chance of showers, mainly in the morning. TUESDAY NIGHT Southwest winds around 5 knots, becoming north after midnight. Seas around 2 feet. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$
GMZ455-210700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1220 PM CST Thu Nov 20 2025 SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 6 PM CST THIS EVENING THROUGH LATE TONIGHT TONIGHT Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers. A chance of thunderstorms after midnight. FRIDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms in the morning. FRIDAY NIGHT Southwest winds around 5 knots. Seas 1 to 2 feet in the evening, then 1 foot or less. Wave Detail: South 1 foot at 5 seconds. SATURDAY Southwest winds around 5 knots. Seas 1 foot or less. A slight chance of showers in the afternoon. SATURDAY NIGHT West winds around 5 knots, becoming north after midnight. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. SUNDAY Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds and southwest 1 foot at 3 seconds. SUNDAY NIGHT Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. MONDAY Southeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers in the afternoon. MONDAY NIGHT South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. TUESDAY Southwest winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. A chance of showers, mainly in the morning. TUESDAY NIGHT Southwest winds around 5 knots, becoming north after midnight. Seas around 2 feet. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$