GMZ500-GMZ501-132300-
 448 AM CST Sat Dec 13 2025
 
 
 .SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...
 
 Light onshore winds of 10 knots or less and calm seas of 2 feet or
 less will persist over the waters through Saturday as a broad area
 of high pressure remains centered over the region. A rapid change in
 conditions will then take place Saturday night and Sunday morning as
 a very strong cold front moves through. Winds will turn northerly
 and increase in speed to between 25 and 30 knots with higher gusts
 from mid day Sunday through Monday morning. There is a decent
 probability that headlines will be issued for the waters over this
 time period due to high winds and rough seas anticipated. Another
 high will then quickly settle over the area on Tuesday, and this
 will allow winds to turn more easterly and fall back to less than
 10 knots. Seas will also begin to subside as the winds decrease
 Monday night into Tuesday.
 
 $$



   GMZ550-552-132300-  Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA  out 20 nm-  Coastal waters from the Southwest Pass of the Mississippi River to  Port Fourchon Louisiana out 20 NM-  448 AM CST Sat Dec 13 2025    TODAY  Southeast winds around 5 knots. Seas 1 foot or less. Wave  Detail: South 1 foot at 4 seconds. Patchy dense fog this morning.  TONIGHT  East winds around 5 knots. Seas 1 foot or less. Wave  Detail: Southeast 1 foot at 4 seconds and southwest 1 foot at  4 seconds. Patchy dense fog in the evening. Widespread dense fog  after midnight. A slight chance of showers after midnight.  Visibility 1 NM or less.  SUNDAY  North winds 20 to 25 knots with gusts up to 30 knots. Seas  2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet  at 4 seconds and west 1 foot at 4 seconds. Patchy dense fog in the  morning. A chance of showers with a slight chance of thunderstorms  in the morning, then a slight chance of showers in the afternoon.  Visibility 1 NM or less in the morning.  SUNDAY NIGHT  Northeast winds 20 to 25 knots with gusts up to  30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:  Northeast 5 feet at 4 seconds.  MONDAY  Northeast winds 15 to 20 knots, diminishing to 10 to  15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.  Wave Detail: Northeast 3 feet at 4 seconds.  MONDAY NIGHT  Northeast winds 10 to 15 knots, becoming east 5 to  10 knots after midnight. Seas 1 to 2 feet. Wave Detail: Northeast  2 feet at 3 seconds and east 2 feet at 6 seconds.  TUESDAY  East winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail:  East 2 feet at 5 seconds.  TUESDAY NIGHT  Southeast winds 5 to 10 knots. Seas 1 to 2 feet.  Wave Detail: East 2 feet at 4 seconds.  WEDNESDAY  East winds 5 to 10 knots. Seas 1 to 2 feet. Wave  Detail: Southeast 2 feet at 5 seconds. A slight chance of showers in  the afternoon.  WEDNESDAY NIGHT  Southeast winds 5 to 10 knots. Seas 2 to 3 feet.  Wave Detail: Southeast 3 feet at 7 seconds. A slight chance of  showers.    Winds and seas higher in and near thunderstorms.    $$