Hazardous marine condition(s):
Tropical Storm Watch
GMZ400-221015-
438 PM 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. At this time Tropical Storm watches have been posted for
Vermilion Bay and offshore waters to the south, as far west as
Vermilion / Cameron Parish line. 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.
$$
GMZ452-221015- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 438 PM CDT Tue Jul 21 2026 TROPICAL STORM WATCH IN EFFECT TONIGHT West winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: West 4 feet at 5 seconds. A chance of showers and thunderstorms late this evening. A slight chance of showers and thunderstorms after midnight. WEDNESDAY Northwest winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: West 4 feet at 5 seconds. A slight chance of showers and thunderstorms early in the afternoon. A chance of showers and thunderstorms late. WEDNESDAY NIGHT Tropical storm conditions possible. Northwest winds 15 to 20 knots with gusts up to 30 knots. Seas 2 to 4 feet. Wave Detail: West 3 feet at 5 seconds. A chance of showers and thunderstorms. THURSDAY Tropical storm conditions possible. Northeast winds 20 to 25 knots, becoming south 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 3 feet at 4 seconds. A chance of showers and thunderstorms. THURSDAY NIGHT South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers. A chance of thunderstorms, mainly in the evening. FRIDAY South winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. FRIDAY NIGHT South winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms early in the evening. SATURDAY Southwest winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. A slight chance of showers and thunderstorms until late afternoon. SATURDAY NIGHT South winds 10 to 15 knots. Seas around 2 feet. SUNDAY Southwest winds 10 to 15 knots. Seas around 2 feet. SUNDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$
GMZ452-221015- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 438 PM CDT Tue Jul 21 2026 TROPICAL STORM WATCH IN EFFECT TONIGHT West winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: West 4 feet at 5 seconds. A chance of showers and thunderstorms late this evening. A slight chance of showers and thunderstorms after midnight. WEDNESDAY Northwest winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: West 4 feet at 5 seconds. A slight chance of showers and thunderstorms early in the afternoon. A chance of showers and thunderstorms late. WEDNESDAY NIGHT Tropical storm conditions possible. Northwest winds 15 to 20 knots with gusts up to 30 knots. Seas 2 to 4 feet. Wave Detail: West 3 feet at 5 seconds. A chance of showers and thunderstorms. THURSDAY Tropical storm conditions possible. Northeast winds 20 to 25 knots, becoming south 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 3 feet at 4 seconds. A chance of showers and thunderstorms. THURSDAY NIGHT South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers. A chance of thunderstorms, mainly in the evening. FRIDAY South winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. FRIDAY NIGHT South winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms early in the evening. SATURDAY Southwest winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. A slight chance of showers and thunderstorms until late afternoon. SATURDAY NIGHT South winds 10 to 15 knots. Seas around 2 feet. SUNDAY Southwest winds 10 to 15 knots. Seas around 2 feet. SUNDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$