GMZ400-210700-
159 PM CDT Fri Mar 20 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...
Light mainly S to SW winds and low seas will continue through the
weekend into early next week as surface high pressure lingers to our
east. Ridging building in aloft will keep dry conditions in place,
with no precipitation expected through the forecast period.
$$
GMZ475-210700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
159 PM CDT Fri Mar 20 2026
TONIGHT
South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds and southwest 1 foot at
2 seconds.
SATURDAY
Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds and southeast 1 foot
at 6 seconds.
SATURDAY NIGHT
Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southwest 2 feet at 4 seconds and southeast
1 foot at 6 seconds.
SUNDAY
South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds.
SUNDAY NIGHT
South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.
MONDAY
South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
6 seconds.
MONDAY NIGHT
Southwest winds around 5 knots. Seas around
2 feet in the evening, then 1 foot or less.
TUESDAY
North winds around 5 knots, becoming southeast in the
afternoon. Seas 1 foot or less.
TUESDAY NIGHT
South winds around 5 knots. Seas 1 foot or less.
WEDNESDAY
South winds around 5 knots. Seas 1 foot or less.
WEDNESDAY NIGHT
South winds around 5 knots. Seas 1 foot or
less.
$$
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