Hazardous marine condition(s):
Small Craft Advisory
GMZ500-GMZ501-100600-
1231 PM CDT Thu Oct 9 2025
.SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...
A cold front moved into the coastal waters last night and surface
high pressure is quickly building in behind it. The pressure
gradient will tighten across the coastal waters as weak persistent
low pressure over the southeastern Gulf and large area of high
pressure to the north and northeast dominate the region over the
next few days. Winds have weakened a fair amount this morning in
response to slight weakening in the pressure gradient as a shortwave
moving southeastward through the parent upper level trough
approaches the base of this feature. Wind will begin to increase
once again this evening with strong northeast winds continuing
through Saturday morning as the base of the trough digs farther
southeast. Winds will generally be around 15 to 20 kts with frequent
gusts abv 20 kts. An Exercise Caution headline was added to fill the
gap between last night's and tonight's Small Craft Advisories. This
upcoming SCY will continue through Saturday morning for all of the
waters again. Winds will finally relax during the day Saturday as
high pressure builds in more.
$$
GMZ550-552-100600- Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm- Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM- 1231 PM CDT Thu Oct 9 2025 SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 PM CDT THIS EVENING SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH SATURDAY MORNING THIS AFTERNOON Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 5 seconds. TONIGHT Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 4 seconds. FRIDAY Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 5 seconds. FRIDAY NIGHT Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 5 seconds. SATURDAY Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 5 seconds. SATURDAY NIGHT Northeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. SUNDAY Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 5 seconds. SUNDAY NIGHT Southeast winds 5 to 10 knots. Seas 1 to 2 feet in the evening, then 1 foot or less. Wave Detail: East 1 foot at 5 seconds, becoming southeast 1 foot at 5 seconds. MONDAY East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. MONDAY NIGHT East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. $$
GMZ550-552-100600- 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- 1231 PM CDT Thu Oct 9 2025 SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 PM CDT THIS EVENING SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH SATURDAY MORNING THIS AFTERNOON Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 5 seconds. TONIGHT Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 4 seconds. FRIDAY Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 5 seconds. FRIDAY NIGHT Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 5 seconds. SATURDAY Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 5 seconds. SATURDAY NIGHT Northeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. SUNDAY Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 5 seconds. SUNDAY NIGHT Southeast winds 5 to 10 knots. Seas 1 to 2 feet in the evening, then 1 foot or less. Wave Detail: East 1 foot at 5 seconds, becoming southeast 1 foot at 5 seconds. MONDAY East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. MONDAY NIGHT East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. $$