GMZ400-132100-
308 AM CDT Sun Sep 13 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...
A few nocturnal showers and thunderstorms will be possible
over the coastal waters Sunday morning with this activity expected
to wane during the afternoon as the sea breeze works inland. Upper
level ridging is expected to build across the northern gulf Monday
through the rest of the week which will keep precipitation chances
negligible. At the surface, weak high pressure will maintain light
southerly winds and low seas through the upcoming week.
$$
GMZ450-132100- Coastal waters from Cameron LA to High Island TX out 20 NM- 308 AM CDT Sun Sep 13 2026 TODAY South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning. A slight chance of showers and thunderstorms early this afternoon. TONIGHT South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. MONDAY Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning. MONDAY NIGHT South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. TUESDAY Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. TUESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. WEDNESDAY East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 2 to 4 feet. A chance of showers with a slight chance of thunderstorms. THURSDAY East winds 15 to 20 knots. Seas 2 to 4 feet. A slight chance of showers and thunderstorms in the morning. THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$
GMZ450-132100- Coastal waters from Cameron LA to High Island TX out 20 NM- 308 AM CDT Sun Sep 13 2026 TODAY South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning. A slight chance of showers and thunderstorms early this afternoon. TONIGHT South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. MONDAY Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning. MONDAY NIGHT South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. TUESDAY Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. TUESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. WEDNESDAY East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 2 to 4 feet. A chance of showers with a slight chance of thunderstorms. THURSDAY East winds 15 to 20 knots. Seas 2 to 4 feet. A slight chance of showers and thunderstorms in the morning. THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$