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.
$$
GMZ455-210700-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
159 PM CDT Fri Mar 20 2026
TONIGHT
Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 2 seconds. Patchy dense fog
late.
SATURDAY
Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds.
SATURDAY NIGHT
Southwest winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. Wave Detail: Southwest
1 foot at 3 seconds.
SUNDAY
South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 1 foot at 4 seconds.
SUNDAY NIGHT
South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 4 seconds.
MONDAY
Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 5 seconds.
MONDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or
less.
TUESDAY
North winds around 5 knots, becoming south around
5 knots in the afternoon. Seas 1 foot or less.
TUESDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or
less.
WEDNESDAY
Southwest winds around 5 knots. Seas 1 foot or less.
WEDNESDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or
less.
$$
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