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

May 4, 2024 6:04 PM EDT (22:04 UTC) Change Location
Sunrise 6:48 AM   Sunset 7:59 PM
Moonrise 3:19 AM   Moonset 3:30 PM 
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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:202405050230;;625792 Fzus52 Kkey 042020 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 420 pm edt Sat may 4 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>044-050230- 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- 420 pm edt Sat may 4 2024

Tonight - East winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.

Sunday - East winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.

Sunday night - East winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet. NEarshore waters choppy, becoming a moderate chop. Isolated showers.

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

Tuesday - East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers.

Tuesday night - East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers.

Wednesday - East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop, becoming a moderate chop. Isolated showers.

Wednesday night - East to southeast winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy.

Thursday - Southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop, becoming a light to moderate chop. Isolated showers.

Thursday night - East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 420 Pm Edt Sat May 4 2024

Synopsis - High pressure over the western north atlantic will maintain moderate to fresh easterly breezes for the next several days. Breezes will tend to peak overnight, followed by lulls in the afternoon.
the approximate shoreward edge of the gulf stream as of may 03 - .
64 nm south of dry tortugas light - .on loggerhead key. 20 nm south of cosgrove shoal light - .off the marquesas keys. 9 nm south of sand key light - .off key west. 8 nm south of looe key - .off big pine key. 11 nm south of sombrero key light - .off marathon. 9 nm southeast of alligator reef light - .off islamorada. 8 nm southeast of molasses reef light - .off key largo.
gulf stream analysis courtesy of the national weather service in key west.


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 041849 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 249 PM EDT Sat May 4 2024

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 204 PM EDT Sat May 4 2024 This discussion feels like the same story, but a different day. The scattered clouds moving through are not doing much to block the sunshine, even though some measurable rainfall fell in the Lower Keys earlier today. We'll see similar conditions going through the weekend and into the first half of next week as a mix of sun and clouds with occasional isolated showers continue. The best chance for rainfall is tomorrow night through Monday night as PoPs are 20 percent.

As the forecast stands at this time, it looks like a small change will come over the course of the end of the week as high temperatures approach 90s. On average, we see the first 90 degree day sometime between the middle of May and the middle of June, depending on where along the Keys we're talking about. All of this to say that the probability of hitting 90 degrees for some locations at the end of next week is low, but it isn't zero.
Dewpoints are also going to be on the rise, so things will feel muggier outside.

MARINE
Issued at 204 PM EDT Sat May 4 2024 High pressure over the western North Atlantic will maintain moderate to fresh easterly breezes for the next several days. Breezes will tend to peak overnight, followed by lulls in the afternoon.



AVIATION
(18Z TAFS)
Issued at 204 PM EDT Sat May 4 2024 VFR conditions will prevail at both island terminals through tomorrow afternoon. Surface winds will be easterly at 10 to 15 knots, with occasional to frequent gusts of 15 to 20 knots possible especially overnight.

CLIMATE
On this day in 1977, the daily record rainfall of 5.33" was recorded in Key West. Rainfall records in Key West date back to 1871.

PRELIMINARY POINT TEMPS/POPS
Key West 76 85 77 86 / 10 10 20 10 Marathon 77 85 77 86 / 10 10 20 20

KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
VCAF1 - 8723970 - Vaca Key, FL 4 mi46 min ESE 7G13 81°F 84°F
SMKF1 - Sombrero Key, FL 8 mi34 min 29.93
LONF1 - Long Key, FL 12 mi34 min E 15G18 79°F 29.9369°F
KYWF1 - 8724580 - Key West, FL 43 mi46 min ESE 8G17 86°F 82°F29.97
SANF1 - Sand Key, FL 49 mi44 min E 15G18 79°F 29.9570°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 sm71 minE 1310 smA Few Clouds84°F70°F62%29.96
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 -- 12:28 AM EDT     0.07 feet Low Tide
Sat -- 04:18 AM EDT     Moonrise
Sat -- 06:36 AM EDT     1.39 feet High Tide
Sat -- 06:46 AM EDT     Sunrise
Sat -- 12:57 PM EDT     0.06 feet Low Tide
Sat -- 04:29 PM EDT     Moonset
Sat -- 07:03 PM EDT     1.39 feet High Tide
Sat -- 07:55 PM EDT     Sunset
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
0.1
1
am
0.1
2
am
0.3
3
am
0.6
4
am
0.9
5
am
1.2
6
am
1.4
7
am
1.4
8
am
1.3
9
am
1
10
am
0.7
11
am
0.4
12
pm
0.1
1
pm
0.1
2
pm
0.2
3
pm
0.4
4
pm
0.8
5
pm
1.1
6
pm
1.3
7
pm
1.4
8
pm
1.3
9
pm
1.1
10
pm
0.8
11
pm
0.5



Tide / Current for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
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Sat -- 12:41 AM EDT     -1.98 knots Max Ebb
Sat -- 03:57 AM EDT     0.00 knots Slack
Sat -- 04:19 AM EDT     Moonrise
Sat -- 06:46 AM EDT     Sunrise
Sat -- 06:52 AM EDT     1.45 knots Max Flood
Sat -- 09:43 AM EDT     -0.00 knots Slack
Sat -- 01:01 PM EDT     -2.16 knots Max Ebb
Sat -- 04:15 PM EDT     0.00 knots Slack
Sat -- 04:30 PM EDT     Moonset
Sat -- 07:23 PM EDT     1.84 knots Max Flood
Sat -- 07:56 PM EDT     Sunset
Sat -- 10:25 PM EDT     -0.00 knots Slack
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
-1.9
1
am
-2
2
am
-1.6
3
am
-0.9
4
am
0
5
am
0.9
6
am
1.3
7
am
1.4
8
am
1.2
9
am
0.6
10
am
-0.3
11
am
-1.2
12
pm
-1.9
1
pm
-2.2
2
pm
-1.9
3
pm
-1.3
4
pm
-0.3
5
pm
0.7
6
pm
1.5
7
pm
1.8
8
pm
1.8
9
pm
1.3
10
pm
0.5
11
pm
-0.6




Weather Map
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GEOS Local Image of southeast   
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Key West, FL,



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