GMZ400-050600-
1143 AM CST Thu Dec 4 2025
.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 small craft advisory is now in effect as ASCAT showed 20 knot
winds in our western waters. Winds will remain gusty and offshore
through tonight with the SCA ending at 09Z tonight. With the
offshore flow there is a possibility for a low water event (-1.0
ft below MLLW) during low tide on Friday morning. For the weekend
conditions will improve before another cold front brings more
gusty offshore winds on Monday.
$$
GMZ455-050600-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1143 AM CST Thu Dec 4 2025
SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH LATE TONIGHT
TONIGHT
North winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: North 2 feet at 3 seconds and south 1 foot at 5 seconds.
A slight chance of thunderstorms this evening. Showers likely. A
chance of thunderstorms after midnight.
FRIDAY
North winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail: North
1 foot at 2 seconds. A slight chance of thunderstorms in the
morning. Showers likely.
FRIDAY NIGHT
Northeast winds 5 to 10 knots. Seas around 2 feet
in the evening, then 1 foot or less. Wave Detail: Northeast
1 foot at 2 seconds. Showers.
SATURDAY
Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 2 seconds. A slight chance of
thunderstorms. Showers.
SATURDAY NIGHT
East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 2 seconds. A slight chance of
thunderstorms. Showers likely, mainly in the evening.
SUNDAY
Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
2 seconds. A chance of showers with a slight chance of
thunderstorms in the morning, then a slight chance of showers in
the afternoon.
SUNDAY NIGHT
North winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet. A slight chance of
showers in the evening.
MONDAY
North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
MONDAY NIGHT
Northeast winds 10 to 15 knots. Seas around
2 feet in the evening, then 1 foot or less.
TUESDAY
Northeast winds 5 to 10 knots, diminishing to around
5 knots in the afternoon. Seas 1 foot or less.
TUESDAY NIGHT
South winds around 5 knots. Seas 1 foot or less.
Winds and seas higher in and near thunderstorms.
$$
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