GMZ400-190900-
 309 PM CDT Sat Apr 18 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 cold front will move through the coastal waters tonight with
 shower and thunderstorm activity expected with the frontal passage
 through tomorrow morning. Northerly winds ramp up in the wake of the
 front, approaching gale criteria for the western marine zones
 overnight into Sunday. As a result, a gale warning has been issued
 for the outer Gulf waters west of Intracoastal City for Sunday
 morning, with a small craft advisory for the remaining Gulf waters
 and all lakes/bays for this time frame. Tomorrow afternoon, the gale
 warning drops off and a small craft advisory will be in affect for
 all marine zones (excluding lakes and bays) through the evening
 hours. Winds remain breezy thereafter but only borderline with SCA
 criteria.
 
 Winds will turn easterly to southeasterly starting Monday afternoon
 and diminish to around 10-15 kt, which will likely continue for much
 of the rest of the week. A few showers and thunderstorms may become
 possible towards the middle of the week as disturbance develops near
 the south TX coast.
 
 $$




 
 GMZ432-190900-
 Calcasieu Lake-
 309 PM CDT Sat Apr 18 2026
 
 SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT SUNDAY THROUGH
 SUNDAY AFTERNOON
 

 TONIGHT
 Southwest winds 5 to 10 knots, becoming north 15 to
 20 knots late this evening, then increasing to 20 to 25 knots
 with gusts up to 30 knots after midnight. Lake waters very rough.
 Showers with a chance of thunderstorms until early morning, then
 showers with a slight chance of thunderstorms late.

 SUNDAY
 Northeast winds 20 to 25 knots, diminishing to 15 to
 20 knots in the afternoon. Lake waters very rough. A chance of
 showers in the morning.

 SUNDAY NIGHT
 Northeast winds 10 to 15 knots. Lake waters
 choppy.

 MONDAY
 East winds 10 to 15 knots. Lake waters choppy.

 MONDAY NIGHT
 East winds 5 to 10 knots. Lake waters light chop.

 TUESDAY
 East winds 10 to 15 knots. Lake waters choppy. A
 chance of showers with a slight chance of thunderstorms in the
 afternoon.

 TUESDAY NIGHT
 Southeast winds 10 to 15 knots. Lake waters
 choppy. A slight chance of showers and thunderstorms in the
 evening, then a chance of showers and thunderstorms after
 midnight.

 WEDNESDAY
 Southeast winds 10 to 15 knots. Lake waters choppy.
 A chance of showers with a slight chance of thunderstorms in the
 morning, then a chance of showers and thunderstorms in the
 afternoon.

 WEDNESDAY NIGHT
 Southeast winds 10 to 15 knots. Lake waters
 choppy.

 THURSDAY
 Southeast winds 10 to 15 knots. Lake waters choppy. A
 slight chance of showers. A slight chance of thunderstorms in the
 afternoon.

 THURSDAY NIGHT
 Southeast winds 10 to 15 knots. Lake waters
 choppy.
 
 Winds and waves higher in and near thunderstorms.
 
 $$