Marine Weather Net

East Cape Sable to Chokoloskee out 20 to 60 NM Marine Forecast


TODAY

ESE
WINDS
5 - 10
KNOTS

TONIGHT

VARIABLE
WINDS
5 KNOTS

THURSDAY

ENE
WINDS
5 KNOTS

THURSDAY NIGHT

ENE
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ033 Forecast Issued: 426 AM EDT Wed Aug 12 2026

Today...East To Southeast Winds 5 To 10 Knots, Becoming Variable Near 5 Knots. Seas Around 1 Foot. Wave Detail: East 1 Foot At 3 Seconds. A Slight Chance Of Showers And Thunderstorms.
Tonight...Variable Winds Near 5 Knots, Becoming Northeast To East. Seas 1 Foot Or Less. A Slight Chance Of Showers And Thunderstorms.
Thursday...Northeast To East Winds Near 5 Knots. Seas 1 Foot Or Less. A Slight Chance Of Showers And Thunderstorms.
Thursday Night...Northeast To East Winds 5 To 10 Knots, Becoming East To Southeast And Increasing To Near 10 Knots. Seas Around 1 Foot, Building To 1 To 2 Feet. A Slight Chance Of Showers And Thunderstorms.
Friday...East Winds Near 10 Knots. Seas 1 To 2 Feet. A Chance Of Showers And Thunderstorms.
Friday Night...East Winds Near 10 Knots, Becoming East To Southeast And Increasing To 10 To 15 Knots. Seas 1 To 2 Feet, Building To 2 To 3 Feet. A Chance Of Showers And Thunderstorms.
Saturday...East To Southeast Winds Near 10 Knots. Seas Around 2 Feet. A Chance Of Showers And Thunderstorms.
Saturday Night...East To Southeast Winds Near 10 Knots. Seas Around 2 Feet. A Slight Chance Of Showers And Thunderstorms.
Sunday And Sunday Night...East To Southeast Winds 5 To 10 Knots. Seas 1 To 2 Feet.
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GMZ005 Synopsis Issued: 426 AM EDT Wed Aug 12 2026

Synopsis...
A High Pressure System Centered In The Central North Atlantic Will Shift Eastward And Weaken Through Thursday. Gentle East To Southeast Breezes Will Slacken, Becoming Light And Variable At Times In The Afternoon Hours. As The High Restrengthens And Builds Westward, Breezes Will Somewhat Freshen For Late In The Work Week Through The Weekend. The Approximate Shoreward Edge Of The Gulf Stream As Of August 7, 2026... 25 Nm South Of Dry Tortugas Light...On Loggerhead Key. 15 Nm South Of Cosgrove Shoal Light...Off The Marquesas Keys. 19 Nm South Of Sand Key Light...Off Key West. 29 Nm South Of Looe Key...Off Big Pine Key. 16 Nm Southeast Of Sombrero Key Light...Off Marathon. 4 Nm Southeast Of Alligator Reef Light...Off Islamorada. 2 Nm Southeast Of Molasses Reef Light...Off Key Largo. 1 Nm Southeast Of Carysfort Reef Light...Off Ocean Reef. Gulf Stream Information Courtesy Of The National Weather Service In Key West, Using Data From Rtofs And Nasa Sport Sst.

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