Thursday, March4, 2021
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Marine Weather and Tides
Marathon, FL

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:45AMSunset 6:32PM Thursday March 4, 2021 11:58 PM EST (04:58 UTC) Moonrise 12:00AMMoonset 10:35AM Illumination 60% Phase: Waning Gibbous; Moon at 21 days in cycle
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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GMZ043 Expires:202103050945;;487780 Fzus52 Kkey 050335 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 1035 Pm Est Thu Mar 4 2021 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>044-050945- 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- 1035 Pm Est Thu Mar 4 2021
Overnight..Northwest winds near 15 knots, becoming north. Seas 1 to 3 feet. NEarshore waters a moderate chop.
Friday..Northeast to east winds 10 to 15 knots. Winds highest east of craig key. Seas 1 to 3 feet. NEarshore waters a light to moderate chop.
Friday night..Northeast to east winds 10 to 15 knots. Winds highest east of craig key. Seas 1 to 2 feet. NEarshore waters a light to moderate chop.
Saturday..Northeast to east winds 10 to 15 knots, becoming northwest late in the afternoon. Seas 1 to 2 feet. NEarshore waters a light to moderate chop. Isolated showers.
Saturday night..Northwest winds near 15 knots, becoming north to northeast and increasing to 15 to 20 knots. Seas building to 1 to 3 feet. NEarshore waters a moderate chop, becoming choppy. Isolated showers.
Sunday..Northeast winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.
Sunday night..Northeast to east winds increasing to 20 to 25 knots. Seas 2 to 4 feet building to 3 to 6 feet after midnight. NEarshore waters becoming very rough.
Monday through Tuesday..Northeast to east winds 20 to 25 knots. Seas 3 to 6 feet. NEarshore waters very rough.
Tuesday night..East winds 20 to 25 knots. Seas 3 to 6 feet. NEarshore waters very rough. Isolated showers.


7 Day Forecast for Marine Location Near Marathon, FL
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location: 24.73, -81.03     debug


Area Discussion for - Key West, FL
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FXUS62 KKEY 050356 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1056 PM EST Thu Mar 4 2021

DISCUSSION. Water vapor imagery highlights a long wave upper trough axis pivoting to the east of Florida. A mid level cyclone is moving into the Plains, north of a large mean layer ridge complex over Central America and the Caribbean. A small and weak low pressure system is lumbering to the south near the northern Bahamas, enhancing the kinematic fields spilling south through the Florida Keys and the southeastern Gulf of Mexico. Northwest to north winds average 11 to 16 knots, tending higher to the west. Winds are a little stronger between Nassau and Bimini, with several ships showing winds gusting above 20 knots. Temperatures across the island chain are in the mid 60s with dewpoints ranging from the upper 50s to lower 60s. Skies are partly to mostly cloudy, although a clearing trend should commence in the next few hours. The KBYX radar is echo free. The forecast is on track and needs no adjustments.

MARINE. A weak low pressure system will lumber to the south near the northern Bahamas tonight. Another area of low pressure will dive through Florida Saturday and Saturday evening, pushing a frontal boundary through the coastal waters of the Florida Keys. Freshening northwest to north breezes Saturday night will become strong and turn to the northeast on Sunday and Sunday night, turning to the east by Tuesday or Tuesday night.

AVIATION. Occasional BKN CIGS at 030-035 will persist at the EYW and MTH terminals through the next few hours. Northerly crosswind gusts approaching 20 knots will persist through 12Z. Winds will turn to the northeast and ease on Friday.

PRELIMINARY POINT TEMPS/POPS. Key West 65 77 70 78 / 0 - 10 20 Marathon 65 78 70 80 / 0 - 10 20

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

Public/Marine/Fire . CLR Aviation/Nowcasts . CLR Data Acquisition . DR

Visit us on the web at weather.gov/key

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAF1 - 8723970 - Vaca Key, FL 4 mi58 min NNW 7 G 14 70°F 77°F1015.4 hPa (+0.5)
SMKF1 - Sombrero Key, FL 8 mi38 min NNW 12 G 14 69°F 1015.6 hPa58°F
LONF1 - Long Key, FL 12 mi38 min 14 G 17 69°F 1015.2 hPa60°F
PKYF1 - Peterson Key, FL 20 mi118 min 76°F
LRKF1 - Little Rabbit Key, FL 20 mi178 min 76°F
JKYF1 - Johnson Key, FL 23 mi118 min 74°F
MUKF1 - Murray Key, FL 26 mi118 min 74°F
BOBF1 - Bob Allen, FL 28 mi118 min 73°F
WRBF1 - Whipray Basin, FL 28 mi118 min W 9.9 74°F
BKYF1 29 mi118 min 73°F
GBTF1 - Garfield Bight, FL 33 mi118 min 74°F
TBYF1 34 mi118 min 75°F
WWEF1 35 mi178 min 76°F
LMDF1 - Little Madeira, FL 37 mi118 min 76°F
BNKF1 - Butternut Key, FL 37 mi118 min 76°F
LRIF1 39 mi118 min 77°F
TRRF1 - Taylor River, FL 39 mi118 min 77°F
CWAF1 39 mi178 min 77°F
NRRF1 42 mi118 min 77°F
DKKF1 - Duck Key, FL 42 mi178 min 76°F
TCVF1 - Trout Cove, FL 43 mi178 min 76°F
SREF1 43 mi118 min 76°F
KYWF1 - 8724580 - Key West, FL 43 mi58 min N 8.9 G 14 69°F 78°F1016.2 hPa (+0.5)
JBYF1 43 mi118 min 76°F
BWSF1 - Blackwater Sound, FL 44 mi178 min 78°F
GBIF1 - Gunboat Island, FL 45 mi118 min 76°F
LBSF1 - Little Blackwater, FL 46 mi178 min 76°F
LSNF1 - Long Sound, FL 46 mi118 min 77°F
TPEF1 - Tarpon Bay East, FL 47 mi178 min 76°F
HCEF1 - Highway Creek, FL 48 mi118 min 77°F
MNBF1 48 mi118 min 78°F
HREF1 48 mi118 min 77°F
THRF1 48 mi178 min 76°F
CANF1 - Cane Patch, FL 48 mi118 min 76°F
SANF1 - Sand Key, FL 49 mi38 min NNW 13 G 17 67°F 1016 hPa56°F

Wind History for Vaca Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Florida Keys - Marathon International Airport, FL1 mi65 minNW 710.00 miA Few Clouds68°F57°F68%1015.2 hPa

Link to 5 minute data for KMTH

Wind History from MTH (wind in knots)
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2 days agoE6SE6SE8SE9SE8SE6SE5SE6SE6SE6SE5S4SE55SE6S75S5CalmCalmCalmE4CalmCalm

Tide / Current Tables for Vaca Key-Fat Deer Key bridge, Florida
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Vaca Key-Fat Deer Key bridge
Click for Map
Thu -- 12:27 AM EST     0.99 feet High Tide
Thu -- 06:01 AM EST     0.13 feet Low Tide
Thu -- 06:43 AM EST     Sunrise
Thu -- 10:34 AM EST     Moonset
Thu -- 11:59 AM EST     1.62 feet High Tide
Thu -- 06:28 PM EST     Sunset
Thu -- 07:33 PM EST     -0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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110.90.60.40.20.10.20.50.91.31.51.61.51.310.60.3-0.1-0.2-0.2-0.10.20.4

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Thu -- 12:15 AM EST     1.78 knots Max Flood
Thu -- 03:46 AM EST     -0.00 knots Slack
Thu -- 06:41 AM EST     -1.65 knots Max Ebb
Thu -- 06:44 AM EST     Sunrise
Thu -- 10:00 AM EST     0.00 knots Slack
Thu -- 10:35 AM EST     Moonset
Thu -- 12:23 PM EST     1.16 knots Max Flood
Thu -- 03:15 PM EST     -0.00 knots Slack
Thu -- 06:28 PM EST     Sunset
Thu -- 06:53 PM EST     -2.07 knots Max Ebb
Thu -- 10:30 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.71.20.6-0.2-1-1.5-1.6-1.3-0.8-00.71.11.10.70.2-0.5-1.3-1.9-2.1-1.8-1.3-0.50.4

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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