GMZ400-290900-
310 PM CDT Mon Sep 28 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...
Flow will become onshore starting tonight and remain onshore for
the rest of the week. Low pressure from the Great Plains will move
north of us around midweek, increasing wind speeds. Small Craft
Advisories may be needed on Wednesday and Thursday. In addition,
the onshore flow is aligning with higher-than-usual tides, which
could cause minor coastal flooding during the second half of the
week.
$$
GMZ435-290900- Vermilion and West Cote Blanche Bays- 310 PM CDT Mon Sep 28 2026 TONIGHT South winds 5 to 10 knots. Bay waters light chop. TUESDAY East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Bay waters choppy. TUESDAY NIGHT Southeast winds 10 to 15 knots. Bay waters choppy. WEDNESDAY Southeast winds 10 to 15 knots. Bay waters choppy. WEDNESDAY NIGHT Southeast winds 15 to 20 knots with gusts up to 25 knots. Bay waters rough. THURSDAY Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Bay waters rough. A chance of showers. A chance of thunderstorms in the afternoon. THURSDAY NIGHT Southeast winds 10 to 15 knots. Bay waters choppy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. FRIDAY Southeast winds around 10 knots. Bay waters light chop. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. FRIDAY NIGHT East winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms. SATURDAY East winds around 10 knots, becoming southeast in the afternoon. Bay waters light chop. Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. SATURDAY NIGHT East winds 5 to 10 knots. Bay waters light chop. A slight chance of thunderstorms. A chance of showers. Winds and waves higher in and near thunderstorms. $$
GMZ435-290900- Vermilion and West Cote Blanche Bays- 310 PM CDT Mon Sep 28 2026 TONIGHT South winds 5 to 10 knots. Bay waters light chop. TUESDAY East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Bay waters choppy. TUESDAY NIGHT Southeast winds 10 to 15 knots. Bay waters choppy. WEDNESDAY Southeast winds 10 to 15 knots. Bay waters choppy. WEDNESDAY NIGHT Southeast winds 15 to 20 knots with gusts up to 25 knots. Bay waters rough. THURSDAY Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Bay waters rough. A chance of showers. A chance of thunderstorms in the afternoon. THURSDAY NIGHT Southeast winds 10 to 15 knots. Bay waters choppy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. FRIDAY Southeast winds around 10 knots. Bay waters light chop. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. FRIDAY NIGHT East winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms. SATURDAY East winds around 10 knots, becoming southeast in the afternoon. Bay waters light chop. Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. SATURDAY NIGHT East winds 5 to 10 knots. Bay waters light chop. A slight chance of thunderstorms. A chance of showers. Winds and waves higher in and near thunderstorms. $$