Marine Weather Net

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


TONIGHT

NNE
WINDS
10 - 15
KNOTS

TUESDAY

NE
WINDS
10 - 15
KNOTS

TUESDAY NIGHT

NE
WINDS
10 - 15
KNOTS

WEDNESDAY

ENE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ033 Forecast Issued: 404 PM EDT Mon Oct 12 2026

Tonight...North To Northeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: North 2 Feet At 5 Seconds. A Slight Chance Of Showers And Thunderstorms.
Tuesday...Northeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: North To Northeast 2 Feet At 5 Seconds.
Tuesday Night...Northeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: North To Northeast 3 Feet At 4 Seconds. A Slight Chance Of Showers.
Wednesday...Northeast To East Winds 10 To 15 Knots. Seas 2 To 3 Feet, Subsiding To 1 To 2 Feet. A Slight Chance Of Showers And Thunderstorms.
Wednesday Night...East Winds 10 To 15 Knots. Seas 1 To 2 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms.
Thursday...East Winds 10 To 15 Knots. Seas 1 To 2 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms.
Thursday Night...East Winds 10 To 15 Knots. Seas 1 To 2 Feet. A Slight Chance Of Showers And Thunderstorms.
Friday...East Winds Near 10 Knots, Decreasing To 5 To 10 Knots. Seas 1 To 2 Feet, Subsiding To Around 1 Foot. A Chance Of Showers And Thunderstorms.
Friday Night...Northeast Winds 5 To 10 Knots. Seas Around 1 Foot. A Chance Of Showers And Thunderstorms.
Saturday...Northeast Winds Near 10 Knots, Increasing To 10 To 15 Knots. Seas Around 1 Foot, Building To 1 To 2 Feet. Showers Likely With A Chance Of Thunderstorms.
Saturday Night...Northeast To East Winds 15 To 20 Knots. Seas 1 To 2 Feet, Building To 2 To 3 Feet. Showers Likely With A Slight Chance Of Thunderstorms.
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GMZ005 Synopsis Issued: 404 PM EDT Mon Oct 12 2026

Synopsis...
A Couple Of Nearby Features Will Define The Weather Across The Florida Keys For The First Half Of The Week. The Atlantic Ridge Is Gradually Weakening And Retreating East Towards The Central Atlantic. Another Region Of High Pressure Is Located Over The Southeast And Northern Gulf. Between The Two High Pressure Centers Lies A Weak Frontal Boundary That Is Extending Across South Florida. The Front Is Forecast To Slowly Pass Across The Keys Waters By Tuesday. This Will Promote Gentle To Moderate Northeast To East Breezes. There Will Be Slight Chances For Showers And A Few Thunderstorms Over The Next Few Days As The Diffuse And Weakening Front Stalls Near The Straits Of Florida. Late In The Week, A Strong Cold Front Could Develop And Move Towards The Florida Keys. Currently, There Are Low Chances That The Front Will Make It To The Florida Keys Waters. We Will Continue Monitoring This System. The Approximate Shoreward Edge Of The Gulf Stream As Of October 9, 2026... 53 Nm South-Southeast Of Dry Tortugas Light, On Loggerhead Key 33 Nm South-Southeast Of Cosgrove Shoal Light, Off The Marquesas Keys 24 Nm South-Southeast Of Sand Key Light, Off Key West 19 Nm South-Southeast Of Looe Key, Off Big Pine Key 13 Nm South-Southeast Of Sombrero Key Light, Off Marathon 5 Nm South-Southeast Of Alligator Reef Light, Off Islamorada 2 Nm East Of Molasses Reef Light, Off Key Largo 2 Nm East Of Carysfort Reef Light, Off Ocean Reef Gulf Stream Information Courtesy Of The Naval Oceanographic Office.

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