Marine Weather Net

Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM Marine Forecast


OVERNIGHT

SW
WINDS
10 - 15
KNOTS

TUESDAY

WSW
WINDS
10
KNOTS

TUESDAY NIGHT

NNW
WINDS
5 - 10
KNOTS

WEDNESDAY

NE
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ054 Forecast Issued: 1024 PM EDT Mon May 12 2025

Overnight...Southwest Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: East To Southeast 2 Feet At 5 Seconds And West 1 Foot At 6 Seconds. Numerous Showers And Scattered Thunderstorms.
Tuesday...Southwest To West Winds Near 10 Knots, Becoming West To Northwest 5 To 10 Knots. Seas Subsiding To 1 To 2 Feet. Wave Detail: East 1 Foot At 5 Seconds. Scattered Showers And Isolated Thunderstorms.
Tuesday Night...Northwest To North Winds 5 To 10 Knots, Becoming Variable Near 5 Knots. Seas Around 1 Foot. Wave Detail: Northeast To East 1 Foot At 5 Seconds And West 1 Foot At 6 Seconds. Scattered Showers And Isolated Thunderstorms.
Wednesday...Northeast Winds 5 To 10 Knots. Seas 1 To 2 Feet. Isolated Showers.
Wednesday Night...East Winds 5 To 10 Knots. Seas 1 To 2 Feet. Isolated Showers.
Thursday...East Winds 5 To 10 Knots. Seas 1 To 2 Feet. Isolated Showers.
Thursday Night...East Winds Near 10 Knots. Seas 1 To 2 Feet.
Friday...East To Southeast Winds 5 To 10 Knots, Increasing To Near 10 Knots. Seas 1 To 2 Feet. Isolated Showers.
Friday Night...East To Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Isolated Showers.
Saturday...East To Southeast Winds Near 10 Knots. Seas 2 To 3 Feet. Isolated Showers.
Saturday Night...East To Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Isolated Showers.
SHARE THIS PAGE:           
Area Forecast Discussion
National Weather Service Key West FL
1052pm EDT Monday May 12 2025

Marine
Issued at 1052pm EDT Monday May 12 2025

Deep troughing centered over the northern Gulf coast will lift northward overnight continuing to pump in abundant moisture through the forecast area. Moderate south to southwest breezes will veer more westerly while the heart of the parent low meanders along the northern Gulf. Scattered to numerous showers with embedded isolated to scattered thunderstorms will continue overnight into early Tuesday. As the low lifts toward the northeast during the middle of the week, higher pressure will be able to fill in behind it, encouraging drier weather and slackening breezes.

Climate
As of 10 PM, the Florida Keys Marathon International Airport recorded 1.45 inches of rainfall. This breaks the previous daily rainfall record of 0.94 inches, set in 1987.

Additional rainfall is possible before midnight tonight. A follow-up record event will be issued with the morning climate to reflect the final daily total.

NOAA Key West FL Office: Watches - Warnings - Advisories
FL...None. GM...None.