Marathon, FL Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Marathon, FL

April 27, 2024 3:07 AM EDT (07:07 UTC) Change Location
Sunrise 6:53 AM   Sunset 7:56 PM
Moonrise 10:41 PM   Moonset 8:13 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.

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Marine Forecasts
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GMZ043 Expires:202404270830;;439500 Fzus52 Kkey 270228 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1028 pm edt Fri apr 26 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.
gmz042>044-270830- hawk channel from ocean reef to craig key out to the reef- 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- 1028 pm edt Fri apr 26 2024

.small craft advisory in effect - .

Overnight - East winds near 20 knots. Seas 3 to 4 feet, except 4 to 5 feet west of cosgrove shoal light. NEarshore waters rough.

Saturday - East winds near 20 knots, increasing to 20 to 25 knots. Seas 3 to 5 feet, building to 4 to 6 feet. NEarshore waters rough, becoming very rough. Isolated showers.

Saturday night - East winds 20 to 25 knots. Seas 4 to 6 feet. NEarshore waters very rough. Isolated showers.

Sunday - East winds near 20 knots. Seas 4 to 5 feet. NEarshore waters rough. Isolated showers.

Sunday night - East winds 20 to 25 knots, decreasing to near 20 knots. Seas 4 to 6 feet, subsiding to 3 to 5 feet. NEarshore waters very rough, becoming rough. Isolated showers.

Monday - East winds 15 to 20 knots. Seas 3 to 4 feet. NEarshore waters choppy. Isolated showers.

Monday night - East to southeast winds near 20 knots. Seas 3 to 5 feet. NEarshore waters rough. Isolated showers.

Tuesday - East to southeast winds 15 to 20 knots. Seas 3 to 4 feet. NEarshore waters choppy. Isolated showers.

Tuesday night - East winds 15 to 20 knots. Seas 3 to 4 feet. NEarshore waters choppy. Isolated showers.

Wednesday - East winds near 15 knots. Seas 2 to 4 feet. NEarshore waters a moderate chop. Isolated showers.

Wednesday night - East winds 15 to 20 knots. Seas 3 to 4 feet. NEarshore waters choppy. Isolated showers.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1028 Pm Edt Fri Apr 26 2024

Synopsis - High pressure centered over new england will dive southeastward into the western north atlantic through the weekend. Easterly breezes will continue to freshen overnight, with strong breezes expected through at least Sunday. As the high weakens somewhat south of bermuda early next week, breezes will modestly slacken, although occasionally fresh breezes will continue through at least Wednesday.
the approximate shoreward edge of the gulf stream is currently unavailable.


7 Day Forecast for Marine Location Near Marathon, FL
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Area Discussion for - Key West, FL
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FXUS62 KKEY 270238 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1038 PM EDT Fri Apr 26 2024

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 1019 PM EDT Fri Apr 26 2024 High pressure centered near New England stretches southwest across Florida. A lingering trough axis north of the Bahamas will be washed out by the building high overnight. East winds at the Reef average 18 to 21 knots, and should increase a few knots overnight.
Temperatures fell into the mid 70s shortly after sunset, but given the SSTs near 80 should not fall much further. The KKEY RAOB sampled a dry and stable profile, kind of par for the course for late April. The KBYX radar is echo free aside from northbound birds. The forecast calls for nil rain chances overnight.
Satellite derived moisture products in conjunction with low-level SPC mesoanalysis products suggest better moisture over the central Bahamas may pivot into the Keys late Saturday morning. Slight rain chances may need to be included if these trends continue. No changes are needed with the inherited forecast.

MARINE
Issued at 1019 PM EDT Fri Apr 26 2024 Small Craft Advisory in effect for all coastal waters of the Florida Keys due to east winds 20 to 25 knots. High pressure centered over New England will dive southeastward into the western North Atlantic through the weekend. Easterly breezes will continue to freshen overnight, with strong breezes expected through at least Sunday. As the high weakens somewhat south of Bermuda early next week, breezes will modestly slacken, although occasionally fresh breezes will continue through at least Wednesday.

AVIATION
(00Z TAFS)
Issued at 1019 PM EDT Fri Apr 26 2024 VFR and gusty easterly breezes will prevail at the EYW and MTH terminals overnight.

PRELIMINARY POINT TEMPS/POPS
Key West 74 83 75 84 / 10 10 10 10 Marathon 74 84 75 84 / 10 10 10 10

KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...Small Craft Advisory for GMZ031>035- 042>044-052>055-072>075.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
VCAF1 - 8723970 - Vaca Key, FL 4 mi50 min E 11G15 77°F 78°F
SMKF1 - Sombrero Key, FL 8 mi38 min 30.05
LONF1 - Long Key, FL 12 mi38 min E 18G22 77°F 30.0565°F
LRKF1 - Little Rabbit Key, FL 20 mi188 min 79°F31 ft
PKYF1 - Peterson Key, FL 20 mi188 min 77°F31 ft
JKYF1 - Johnson Key, FL 23 mi188 min 78°F30 ft
MUKF1 - Murray Key, FL 26 mi188 min 76°F
BOBF1 - Bob Allen, FL 28 mi188 min 77°F31 ft
WRBF1 - Whipray Basin, FL 28 mi188 min 16 76°F31 ft
BKYF1 29 mi188 min 79°F31 ft
GBTF1 - Garfield Bight, FL 33 mi188 min 78°F31 ft
TBYF1 34 mi188 min 80°F31 ft
WWEF1 35 mi188 min 79°F42 ft
BNKF1 - Butternut Key, FL 37 mi188 min 77°F31 ft
LMDF1 - Little Madeira, FL 37 mi188 min 78°F31 ft
BSKF1 38 mi188 min 73°F21 ft
CWAF1 39 mi188 min 77°F30 ft
LRIF1 39 mi188 min 79°F31 ft
TRRF1 - Taylor River, FL 39 mi188 min 82°F31 ft
DKKF1 - Duck Key, FL 42 mi188 min 78°F30 ft
NRRF1 42 mi188 min 79°F31 ft
JBYF1 43 mi188 min 79°F31 ft
KYWF1 - 8724580 - Key West, FL 43 mi50 min E 5.1G9.9 76°F 80°F30.09
SREF1 43 mi188 min 79°F22 ft
TCVF1 - Trout Cove, FL 43 mi188 min 78°F30 ft
BWSF1 - Blackwater Sound, FL 44 mi188 min 79°F32 ft
GBIF1 - Gunboat Island, FL 45 mi188 min 79°F27 ft
LBSF1 - Little Blackwater, FL 46 mi188 min 78°F31 ft
LSNF1 - Long Sound, FL 46 mi188 min 78°F31 ft
TPEF1 - Tarpon Bay East, FL 47 mi188 min 80°F30 ft
CANF1 - Cane Patch, FL 48 mi188 min 78°F33 ft
HCEF1 - Highway Creek, FL 48 mi188 min 78°F31 ft
HREF1 48 mi188 min 80°F26 ft
MNBF1 48 mi188 min 78°F32 ft
THRF1 48 mi188 min 80°F32 ft
SANF1 - Sand Key, FL 49 mi48 min E 20G23 77°F 30.0664°F


Wind History for Vaca Key, FL
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KMTH THE FLORIDA KEYS MARATHON INTL,FL 1 sm14 minE 11G2010 smA Few Clouds77°F64°F65%30.07
Link to 5 minute data for KMTH


Wind History from MTH
(wind in knots)
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Tide / Current for Vaca Key-Fat Deer Key bridge, Florida
   
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Vaca Key-Fat Deer Key bridge
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Sat -- 12:07 AM EDT     1.01 feet High Tide
Sat -- 04:54 AM EDT     0.38 feet Low Tide
Sat -- 06:51 AM EDT     Sunrise
Sat -- 09:13 AM EDT     Moonset
Sat -- 10:52 AM EDT     1.80 feet High Tide
Sat -- 06:38 PM EDT     -0.19 feet Low Tide
Sat -- 07:52 PM EDT     Sunset
Sat -- 11:41 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Vaca Key-Fat Deer Key bridge, Florida, Tide feet
12
am
1
1
am
1
2
am
0.8
3
am
0.6
4
am
0.4
5
am
0.4
6
am
0.5
7
am
0.8
8
am
1.2
9
am
1.5
10
am
1.7
11
am
1.8
12
pm
1.7
1
pm
1.5
2
pm
1.2
3
pm
0.7
4
pm
0.3
5
pm
0
6
pm
-0.2
7
pm
-0.2
8
pm
-0
9
pm
0.2
10
pm
0.5
11
pm
0.7



Tide / Current for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
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Sat -- 03:01 AM EDT     -0.00 knots Slack
Sat -- 05:53 AM EDT     -1.51 knots Max Ebb
Sat -- 06:51 AM EDT     Sunrise
Sat -- 09:10 AM EDT     0.00 knots Slack
Sat -- 09:14 AM EDT     Moonset
Sat -- 11:26 AM EDT     1.01 knots Max Flood
Sat -- 01:53 PM EDT     -0.00 knots Slack
Sat -- 05:50 PM EDT     -2.08 knots Max Ebb
Sat -- 07:52 PM EDT     Sunset
Sat -- 09:20 PM EDT     0.00 knots Slack
Sat -- 11:41 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Moser Channel (swingbridge), Florida Current, knots
12
am
1.8
1
am
1.4
2
am
0.8
3
am
0
4
am
-0.7
5
am
-1.3
6
am
-1.5
7
am
-1.3
8
am
-0.8
9
am
-0.1
10
am
0.5
11
am
1
12
pm
0.9
1
pm
0.5
2
pm
-0.1
3
pm
-0.7
4
pm
-1.4
5
pm
-1.9
6
pm
-2.1
7
pm
-1.8
8
pm
-1.1
9
pm
-0.3
10
pm
0.6
11
pm
1.3




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



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