Key West, FL Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Key West, FL

June 16, 2024 8:25 PM EDT (00:25 UTC) Change Location
Sunrise 6:37 AM   Sunset 8:18 PM
Moonrise 2:35 PM   Moonset 1:40 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
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GMZ044 Expires:202406170245;;135596 Fzus52 Kkey 162035 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 435 pm edt Sun jun 16 2024
florida bay, hawk channel and straits of florida from ocean reef to south of dry tortugas, and the extreme southeastern gulf of mexico, including the florida keys national marine sanctuary
seas are given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height.
wave detail will include details about the period and direction of origin for the highest energy waves. Long-period swells coming from a different direction than the wind would be included in the wave detail.
gmz043-044-170245- hawk channel from craig key to west end of seven mile bridge out to the reef- hawk channel from west end of seven mile bridge to halfmoon shoal out to the reef- 435 pm edt Sun jun 16 2024

.small craft advisory in effect - .

Tonight - East winds near 20 knots. Seas 3 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of cosgrove shoal light. NEarshore waters rough. Isolated showers and Thunderstorms.

Monday - East winds near 20 knots. Seas 3 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of cosgrove shoal light. NEarshore waters rough. Isolated showers and Thunderstorms.

Monday night through Wednesday - East winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. NEarshore waters rough. Scattered showers and isolated Thunderstorms.

Wednesday night - East winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 4 feet. NEarshore waters choppy, becoming a moderate chop. Scattered showers and isolated Thunderstorms.

Thursday - East winds 10 to 15 knots, becoming east to southeast. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.

Thursday night - East to southeast winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms.

Friday and Friday night - East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. NEarshore waters choppy. Scattered showers and isolated Thunderstorms.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 435 Pm Edt Sun Jun 16 2024

Synopsis - Strong surface high pressure centered off the new england coast working in tandem with falling pressures over the yucatan peninsula and the bay of campeche is expected to result in moderate to fresh breezes tonight through mid week. An area of low pressure may develop mid week a few hundred miles north of the central bahamas near mid week and move towards the north to central florida coastline. This will result in slackening breezes before high pressure takes control again resulting in freshening east to southeasterly breezes late week.
the approximate shoreward edge of the gulf stream as of june 12 - .
66 nm south of dry tortugas light - .on loggerhead key. 24 nm south of cosgrove shoal light - .off the marquesas keys. 17 nm south of sand key light - .off key west. 28 nm south of looe key - .off big pine key. 8 nm south of sombrero key light - .off marathon. 4 nm south of alligator reef light - .off islamorada. 2 nm south of molasses reef light - .off key largo.
gulf stream information courtesy of the national weather service in key west.


7 Day Forecast for Marine Location Near Key West, FL
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Area Discussion for - Key West, FL
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FXUS62 KKEY 161903 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 303 PM EDT Sun Jun 16 2024

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 302 PM EDT Sun Jun 16 2024 KBYX radar shows a couple showers across the westernmost Straits of Florida to the southwest of Rebecca Shoal Light. These showers most likely formed along a speed convergence boundary. GOES 16 Visible satellite imagery shows some high cirrus streaming from west to east across the Keys with mainly cumulus and stratocumulus streaming from east to west. Temperatures along the Island Chain are in the upper 80s to near 90 degrees with dew points in the upper 70s to near 80 degrees. This is resulting in heat indices of 100 to 105 degrees. Strong surface high pressure is centered off the New England coastline and building southward as pressures are falling across the Yucatan Peninsula and the Bay of Campeche. Due to this, marine platforms are observing 15 to 20 knots across the western parts of the reef with 10 to 15 knots for the central and eastern areas of the reef off the Middle and Upper Keys. Island Chain communities of the Middle to Lower Keys are observing 15 to 20 mph with the Upper Keys 10 to 15 mph.

FORECAST
Strong surface high pressure off the New England coastline is slowly moving farther out into the North Atlantic and building southward as it does so. This is working in combination with pressures falling across the Bay of Campeche and the Yucatan Peninsula resulting in a strengthening pressure gradient across much of the Southeastern United States. This will be the dominant weather feature driving the Keys weather for the next few days.
As a result, breezy conditions are expected to continue through mid-week with the Upper Keys waiting until tomorrow to see the uptick in the breezes.

Regarding moisture, the tropical moisture plume that has plagued South Florida and the Keys for the past week is continuing to shift northwestward bringing the unsettled weather to Texas and Louisiana. This will result in the aforementioned areas becoming very wet in the days to come and the Keys being in a more typical summer pattern for the next few days. The exception will be tonight where we will remain quite dry. Therefore, PoPs were decreased from 20% to 10% for tonight. Monday through Tuesday night remained unchanged at 30%. The National Hurricane Center has increased (70% chance of development over the next 7 days) the odds of tropical development occurring in the Bay of Campeche in the days to come as a piece of the Central American Gyre breaks off and moves northwestward.

Then things get interesting, the latest guidance continues to show a vorticity lobe in the upper levels, originally associated with recent rains across Florida, coming back to the west. Model guidance shows this festering for a little bit over the western North Atlantic to the north of Hispaniola and Puerto Rico. This vort maxima will be waiting on the upper level ridge that will bring the prolonged heat to the Midwest and Northeast to pick this energy up and shift it back to the west. As we know, we have clockwise flow around a high so once this gets picked up it will most likely have only one place to go which continues to remain uncertain at this time. Some guidance brings this feature into the north to central Florida coastline or perhaps even as far north as South Carolina. It is still remains too early as to what this feature will become but the risk is there for tropical moisture to potentially make a reappearance for at least some part of Florida mid to late next week resulting in PoPs being kept at 40%. One thing to also mention is the flow looks to be fast so anything that might try to develop wouldn't have much time to do so. We will continue to monitor.

MARINE
Issued at 302 PM EDT Sun Jun 16 2024 Small Craft Advisories are in effect for most of the Florida Keys coastal waters, except for Florida Bay, the Bayside and Gulfside waters to the west end of the Seven Mile Bridge, eastern hawk Channel, and the far eastern Straits of Florida. Small Craft Advisory Likely will be Required Monday afternoon are headlined in the zones without the Small Craft Advisory. From synopsis, strong surface high pressure centered off the New England coast working in tandem with falling pressures over the Yucatan Peninsula and the Bay of Campeche is expected to result in moderate to fresh breezes tonight through mid week. An area of low pressure may develop mid week a few hundred miles north of the central Bahamas near mid week and move towards the north to central Florida coastline. This will result in slackening breezes before high pressure takes control again resulting in freshening east to southeasterly breezes late week.

AVIATION
(18Z TAFS)
Issued at 302 PM EDT Sun Jun 16 2024 VFR conditions will prevail at both island terminals through the TAF period, however, brief intermittent MVFR CIGS are possible through the late afternoon. Easterly surface winds will between 12 to 16 knots, with frequent gusts of 18 to 23 knots.

CLIMATE
On this day in 1906, a Category One Hurricane moved slowly to the north-northeast crossing what is now the Seven Mile Bridge.
Instrumentation in Key West recorded a minimum pressure of 29.62" and a peak wind of 42 mph.

PRELIMINARY POINT TEMPS/POPS
Key West 82 89 83 89 / 10 20 30 30 Marathon 82 90 82 90 / 10 30 30 30

KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...Small Craft Advisory until 5 AM EDT Monday for GMZ033>035-043- 044-053>055-073>075.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
42095 13 mi86 min 84°F 84°F4 ft
SANF1 - Sand Key, FL 15 mi46 minESE 19G23 84°F 29.9677°F
KYWF1 - 8724580 - Key West, FL 17 mi68 minESE 12G19 90°F 85°F29.98


Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KEYW KEY WEST INTL,FL 20 sm32 minE 1610 smClear84°F75°F74%29.97
KNQX KEY WEST NAS /BOCA CHICA FIELD/,FL 23 sm32 minE 1610 smPartly Cloudy90°F81°F75%29.97
Link to 1 hour of 5 minute data for KEYW
   
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Wind History graph: EYW
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Tide / Current for Sand Key Lighthouse, Sand Key Channel, Florida
   
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Sand Key Lighthouse
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Sun -- 02:39 AM EDT     Moonset
Sun -- 05:11 AM EDT     1.34 feet High Tide
Sun -- 06:38 AM EDT     Sunrise
Sun -- 12:22 PM EDT     0.17 feet Low Tide
Sun -- 03:33 PM EDT     Moonrise
Sun -- 06:21 PM EDT     0.90 feet High Tide
Sun -- 08:17 PM EDT     Sunset
Sun -- 11:40 PM EDT     0.48 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Sand Key Lighthouse, Sand Key Channel, Florida, Tide feet
12
am
0.5
1
am
0.6
2
am
0.9
3
am
1.1
4
am
1.3
5
am
1.3
6
am
1.3
7
am
1.2
8
am
1
9
am
0.8
10
am
0.5
11
am
0.3
12
pm
0.2
1
pm
0.2
2
pm
0.3
3
pm
0.5
4
pm
0.7
5
pm
0.8
6
pm
0.9
7
pm
0.9
8
pm
0.8
9
pm
0.7
10
pm
0.6
11
pm
0.5


Tide / Current for Boca Grande Channel, Florida Current
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Boca Grande Channel
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Sun -- 12:29 AM EDT     0.00 knots Slack
Sun -- 02:39 AM EDT     Moonset
Sun -- 02:50 AM EDT     0.61 knots Max Flood
Sun -- 06:16 AM EDT     -0.00 knots Slack
Sun -- 06:39 AM EDT     Sunrise
Sun -- 09:49 AM EDT     -1.01 knots Max Ebb
Sun -- 12:49 PM EDT     0.00 knots Slack
Sun -- 03:34 PM EDT     Moonrise
Sun -- 03:43 PM EDT     0.88 knots Max Flood
Sun -- 07:31 PM EDT     -0.00 knots Slack
Sun -- 08:18 PM EDT     Sunset
Sun -- 10:36 PM EDT     -0.86 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Boca Grande Channel, Florida Current, knots
12
am
-0.2
1
am
0.2
2
am
0.5
3
am
0.6
4
am
0.5
5
am
0.4
6
am
0.1
7
am
-0.3
8
am
-0.7
9
am
-0.9
10
am
-1
11
am
-0.9
12
pm
-0.5
1
pm
0.1
2
pm
0.6
3
pm
0.8
4
pm
0.9
5
pm
0.8
6
pm
0.6
7
pm
0.2
8
pm
-0.2
9
pm
-0.6
10
pm
-0.8
11
pm
-0.8


Weather Map
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GEOS Local Image of gulf of mexico   
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Key West, FL,




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