GMZ400-212230-
451 AM CDT Tue Jul 21 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 the northwest Gulf and the circulation around
Tropical Storm Bertha will bring modest west northwest winds into
Wednesday. Marine conditions for Wednesday night through Friday will
depend on the eventual track and strength of Tropical Storm Bertha
as it moves just inland or over the northwest Gulf. All marine
interests should continue to monitor updates on Tropical Storm
Bertha.
$$
GMZ432-212230- Calcasieu Lake- 451 AM CDT Tue Jul 21 2026 TODAY West winds 5 to 10 knots. Lake waters light chop. TONIGHT West winds 5 to 10 knots. Lake waters light chop. WEDNESDAY West winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms late. WEDNESDAY NIGHT West winds 5 to 10 knots, becoming north after midnight. Lake waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of thunderstorms late in the evening. A slight chance of showers in the late evening and early morning. THURSDAY North winds 5 to 10 knots, increasing to 20 to 25 knots with gusts up to 30 knots in the afternoon. Lake waters very rough. A chance of showers and thunderstorms in the afternoon. THURSDAY NIGHT East winds 15 to 20 knots, becoming southeast 20 to 25 knots after midnight. Lake waters very rough. A chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight. FRIDAY Southwest winds around 5 knots, increasing to around 10 knots in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning. FRIDAY NIGHT Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of thunderstorms. A chance of showers until early morning, then a slight chance of showers late. SATURDAY Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. A chance of showers. SATURDAY NIGHT Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$
GMZ432-212230- Calcasieu Lake- 451 AM CDT Tue Jul 21 2026 TODAY West winds 5 to 10 knots. Lake waters light chop. TONIGHT West winds 5 to 10 knots. Lake waters light chop. WEDNESDAY West winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms late. WEDNESDAY NIGHT West winds 5 to 10 knots, becoming north after midnight. Lake waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of thunderstorms late in the evening. A slight chance of showers in the late evening and early morning. THURSDAY North winds 5 to 10 knots, increasing to 20 to 25 knots with gusts up to 30 knots in the afternoon. Lake waters very rough. A chance of showers and thunderstorms in the afternoon. THURSDAY NIGHT East winds 15 to 20 knots, becoming southeast 20 to 25 knots after midnight. Lake waters very rough. A chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight. FRIDAY Southwest winds around 5 knots, increasing to around 10 knots in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning. FRIDAY NIGHT Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of thunderstorms. A chance of showers until early morning, then a slight chance of showers late. SATURDAY Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. A chance of showers. SATURDAY NIGHT Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$