Marine Forecast
Illustrated map of Toledo Bend Reservoir

Marine forecast

Breton Sound, LA

current wind
6 kt SE
Gusts
8 kt
Seas
1.6 ft
Period
6 sec
Air
85°F

Observed Tue 1:54 PM | GMZ535

Gusts now
8 kt
Seas now
1.6 ft · 6 sec
Air
85°F
72-hr peak
11 kt
Peak seas
2 ft

In brief

At 1:54 pm CDT on Oct 13, 2026, NDBC station SHBL1 (Shell Beach, LA, 17 miles away) measured wind from the SE at 6 kt, gusting to 8 kt; buoy 42084 measured seas of 1.6 ft. The NWS forecast for Breton Sound, LA issued at 1:56 pm CDT on Oct 13, 2026 reads, for this afternoon: “East winds around 5 knots. Seas 1 foot or less.”

Source: National Weather Service New Orleans LA forecast; NDBC observations

Wind forecast · ktPeak 11 kt

051015Wed 14Thu 15Fri 16051015Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | CDT

Seas forecast · ftPeak 2 ft

012Wed 14Thu 15Fri 16012Wed 14Thu 15Fri 16
Oct 13-16 | CDT

NWS marine forecast

PeriodForecast
This AfternoonEast winds around 5 knots. Seas 1 foot or less.
TonightSoutheast winds around 5 knots. Seas 1 foot or less.
WednesdayNortheast winds 5 to 10 knots. Seas 1 foot or less.
Wednesday NightSoutheast winds 5 to 10 knots. Seas 1 foot or less.
ThursdayEast winds 5 to 10 knots. Seas around 2 feet.
Thursday NightEast winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less.
FridayNortheast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less.
Friday NightNortheast winds 10 to 15 knots, becoming north 25 to 30 knots after midnight. Seas around 2 feet, building to 6 to 7 feet, occasionally to 9 feet after midnight.
SaturdayNortheast winds 25 to 30 knots. Seas 6 to 7 feet, occasionally to 9 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the afternoon.
Saturday NightNortheast winds 20 to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet.

Issued Tue 1:56 PM by New Orleans LA (product CWFLIX).

TimeWindGustSeasWater
Tue 1:54 PM 6 kt SE 8 kt — —
Tue 12:54 PM 7 kt SSE 11 kt — —
Tue 11:54 AM 7 kt ESE 10 kt — —
Tue 10:54 AM 0 kt 2 kt — —
Tue 9:54 AM 3 kt ESE 4 kt — —
Tue 8:54 AM 3 kt ESE 4 kt — —
Tue 7:54 AM 3 kt ESE 4 kt — —
Tue 6:54 AM 3 kt ESE 3 kt — —
Tue 5:54 AM 4 kt SE 4 kt — —
Tue 4:54 AM 2 kt ESE 2 kt — —
Tue 3:54 AM 2 kt S 2 kt — —
Tue 2:54 AM 3 kt SSE 3 kt — —

Observed Tue 1:54 PM at NDBC buoy SHBL1 (Shell Beach, LA), 17.2 miles away. Seas from buoy 42084 (Southwest Pass Entrance W, LA (256)), 44.9 miles away, at Tue 2:00 PM.

What is the marine forecast for Breton Sound today?

This Afternoon: East winds around 5 knots. Seas 1 foot or less.

Is there a small craft advisory for Breton Sound?

No advisories, warnings or watches are in effect for NWS zone GMZ535 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.

How high are the waves at Breton Sound right now?

Seas are running 1.6 ft at a 6-second period, measured at NDBC buoy SHBL1 Tue 1:54 PM, 17.2 miles from this zone. The forecast peaks at 2.0 ft Thu 7 AM.

What do the wind speeds in knots mean?

One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.

Where does this forecast come from?

The forecast text is the National Weather Service's own marine bulletin for zone GMZ535, issued by New Orleans LA, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.

Forecast: NOAA/NWS product CWFLIX, issued Tue 1:56 PM. Observations: NOAA National Data Buoy Center station SHBL1, read Tue 1:54 PM. Retrieved Oct 13, 2:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.