GMZ400-280900-
310 PM CDT Sun Sep 27 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...
High pressure over most of the eastern CONUS will keep light to
moderate winds generally east to southeast. Low pressure will move
into the southern plains by mid week with winds increasing mid to
late week. Low seas can be anticipated through early week with
increasing heights thereafter.
$$
GMZ470-280900- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 310 PM CDT Sun Sep 27 2026 TONIGHT Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 5 seconds. MONDAY East winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave Detail: Southeast 1 foot at 5 seconds, becoming southeast 1 foot at 4 seconds. MONDAY NIGHT Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. TUESDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. A slight chance of showers in the afternoon. TUESDAY NIGHT Southeast winds around 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight chance of showers after midnight. WEDNESDAY Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. WEDNESDAY NIGHT Southeast winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 5 feet, occasionally to 6 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. THURSDAY Southeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. THURSDAY NIGHT Southeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. FRIDAY East winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. Showers likely. FRIDAY NIGHT Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Showers likely with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$
GMZ470-280900- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 310 PM CDT Sun Sep 27 2026 TONIGHT Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 5 seconds. MONDAY East winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave Detail: Southeast 1 foot at 5 seconds, becoming southeast 1 foot at 4 seconds. MONDAY NIGHT Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. TUESDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. A slight chance of showers in the afternoon. TUESDAY NIGHT Southeast winds around 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight chance of showers after midnight. WEDNESDAY Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. WEDNESDAY NIGHT Southeast winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 5 feet, occasionally to 6 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. THURSDAY Southeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. THURSDAY NIGHT Southeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. FRIDAY East winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. Showers likely. FRIDAY NIGHT Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Showers likely with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$