Marine Weather Net

Straits of Florida from Ocean Reef to Craig Key out 20 - 60 NM Marine Forecast


OVERNIGHT

ENE
WINDS
5 - 10
KNOTS

TUESDAY

E
WINDS
10
KNOTS

TUESDAY NIGHT

ENE
WINDS
10 - 15
KNOTS

WEDNESDAY

ENE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ072 Forecast Issued: 1020 PM EDT Mon Sep 14 2026

Overnight...Northeast To East Winds 5 To 10 Knots, Increasing To Near 10 Knots. Seas 1 To 2 Feet. Wave Detail: East 2 Feet At 4 Seconds. A Chance Of Showers And Thunderstorms.
Tuesday...East Winds Near 10 Knots, Increasing To 10 To 15 Knots. Seas Around 2 Feet. Wave Detail: East 2 Feet At 4 Seconds. A Slight Chance Of Showers And Thunderstorms.
Tuesday Night...Northeast To East Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: Northeast To East 3 Feet At 4 Seconds. Showers Likely With A Chance Of Thunderstorms.
Wednesday...Northeast To East Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Chance Of Showers And Thunderstorms.
Wednesday Night...East Winds 10 To 15 Knots. Seas 2 To 3 Feet. Showers Likely With A Chance Of Thunderstorms.
Thursday...East Winds Near 10 Knots. Seas 2 To 3 Feet. A Chance Of Showers And Thunderstorms.
Thursday Night...East To Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Showers Likely With A Chance Of Thunderstorms.
Friday...East To Southeast Winds 5 To 10 Knots. Seas Around 2 Feet. A Chance Of Showers And Thunderstorms.
Friday Night...East To Southeast Winds Near 10 Knots. Seas 1 To 2 Feet. A Chance Of Showers And Thunderstorms.
Saturday...East To Southeast Winds 5 To 10 Knots. Seas 1 To 2 Feet. A Chance Of Showers And Thunderstorms.
Saturday Night...East To Southeast Winds 5 To 10 Knots. Seas Around 1 Foot. A Chance Of Showers And Thunderstorms.
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Area Forecast Discussion
National Weather Service Key West FL
1010pm EDT Monday September 14 2026

Issued at 1010pm EDT Monday September 14 2026 Weather proved to be somewhat tame across the Florida Keys this Monday evening. A cloud line was able to develop and generate rainfall south of the Lower Keys before sunset, but otherwise meteorological echoes on KBYX have been sparse. Popcorn cumulus are able to bubble across the Florida Straits. Otherwise, the most notable feature on radar were the birds taking off to fly south just after sunset. Satellite observations from GOES East are slightly difficult to read. The Nighttime Microphysics product looks a very dark blue because of the high amount of water vapor in the atmosphere. Only a couple of cumulus clouds and cirrus clouds were observed over the Keys waters. The 00Z KKEY sounding provides the evidence as to why. The sampled PWAT (Precipitable Water) was near the 90th percentile for the day. So why are showers struggling to form? Based off the winds from the KKEY sounding, winds are backing with height in the lower altitudes. Environmental flow this evening is not very supportive of convection.

Showers may be able to form during the overnight hours across the Florida Keys. While winds across the reef are light and variable this evening, a shift to light to gentle east to southeasterlies is expected overnight. Localized wind speed convergence may provide enough lift to get showers near the island chain. However, the forcing remains light. A comparison with statistical guidance suggests shower coverage will be on the lower side. Tonight, expect humid conditions with light winds. Enjoy the calmer conditions while they last, because the weather is on track to get much more complicated mid-week.

Marine
Issued at 1010pm EDT Monday September 14 2026 No watches, warnings, or advisories are in effect for the Florida Keys offshore or nearshore waters.

From synopsis: light and variable winds will start to freshen and veer easterly tonight. Breezes will continue to gradually freshen out of the northeast to east over the next few days as a continental high builds southward towards our area. Expect breezes to peak in the moderate range late Tuesday and late Wednesday. Near normal rain chances will trend considerably upwards through mid week as broad troughing and increasing moisture moves in from the east.

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