Wednesday, September23, 2020
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Marine Weather and Tides
Key Colony Beach, FL

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:15AMSunset 7:23PM Wednesday September 23, 2020 3:17 PM EDT (19:17 UTC) Moonrise 12:46PMMoonset 11:36PM Illumination 40% Phase: Waxing Crescent; Moon at 6 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:202009232030;;246233 Fzus52 Kkey 231429 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 1029 Am Edt Wed Sep 23 2020 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>044-232030- 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- 1029 Am Edt Wed Sep 23 2020
.small craft should exercise caution until winds decrease...
This afternoon..East winds 15 to 20 knots. Seas 2 to 4 feet, subsiding to 2 to 3 feet. NEarshore waters choppy, becoming a moderate chop. Isolated showers and Thunderstorms.
Tonight..East to southeast winds 15 to 20 knots. Seas 3 to 4 feet. NEarshore waters choppy. Isolated showers and Thunderstorms.
Thursday..East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms.
Thursday night..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms.
Friday..Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Scattered showers and Thunderstorms.
Friday night and Saturday..Southeast to south winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Saturday night..Southeast winds near 5 knots. Seas around 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Sunday and Sunday night..Variable winds near 5 knots. Seas around 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.


7 Day Forecast for Marine Location Near Key Colony Beach, FL
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location: 24.7, -81.1     debug


Area Discussion for - Key West, FL
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FXUS62 KKEY 231506 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1106 AM EDT Wed Sep 23 2020

DISCUSSION. Currently - High pressure centered in the eastern and southeastern United States extends a ridge eastward off of the Carolina and Georgia coast. This is resulting in moderate to fresh easterly breezes across the Keys. Ridging is in place aloft. While there is a substantial amount of warm dry air aloft preventing deep convection, the boundary layer is quite deep with the inhibition level is up around 800 mb. Because of the above, isolated to widely scattered weak showers have been present across the forecast area this morning, and are now mostly located west of the Marquesas Keys.

Shot Term Update - Winds will gradually oscillate downwards over the next couple of days as the ridge to our north continues to spread eastward and weaken. Expect a subtle lull through the afternoon, then a subtle surge again this evening. Winds will remain out of the east. The continued influx of modified continental air will maintain dew points in the lower 70s and temperatures should top out in the upper 80s.

MARINE. A ridge extending off the southeastern United States will maintain a fairly tight gradient across Keys waters. Day time heating should result in a subtle lull across our waters with a late evening subtle increase. Advisories remain for the Florida Straits off of the Upper Keys due to a residual northerly swell. Otherwise, cautions are in place for all waters until winds decrease.

AVIATION. VFR conditions will prevail at the EYW and MTH terminals through 00z. While periods of broken cloud cover are expected, cloud bases are expected to remain at or above 3000 feet. Easterly near-surface winds will remain at 10 to 15 knots, with occasional gusts near 20 knots.

KEY WATCHES/WARNINGS/ADVISORIES. FL . Coastal Flood Advisory until 10 AM EDT Thursday for FLZ076. GM . Small Craft Advisory for GMZ052-072.



Public/Marine/Fire . 11 Aviation/Nowcasts . BT Data Acquisition . NB

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAF1 - 8723970 - Vaca Key, FL 1 mi47 min E 11 G 17 84°F 85°F1013.7 hPa
LRKF1 - Little Rabbit Key, FL 24 mi137 min 83°F
PKYF1 - Peterson Key, FL 24 mi77 min 83°F
JKYF1 - Johnson Key, FL 27 mi77 min 83°F
MUKF1 - Murray Key, FL 29 mi77 min 85°F
BKYF1 32 mi77 min 83°F
BOBF1 - Bob Allen, FL 32 mi77 min 83°F
WRBF1 - Whipray Basin, FL 32 mi77 min NNE 11 82°F
GBTF1 - Garfield Bight, FL 36 mi77 min 83°F
TBYF1 37 mi77 min 83°F
WWEF1 38 mi137 min 82°F
KYWF1 - 8724580 - Key West, FL 39 mi47 min ESE 12 G 17 90°F 85°F1013.7 hPa
LMDF1 - Little Madeira, FL 41 mi77 min 84°F
BNKF1 - Butternut Key, FL 41 mi77 min 82°F
CWAF1 42 mi137 min 82°F
LRIF1 42 mi77 min 83°F
TRRF1 - Taylor River, FL 43 mi77 min 82°F
SANF1 - Sand Key, FL 44 mi27 min E 19 G 22 83°F 1013.4 hPa70°F
NRRF1 45 mi77 min 82°F
SREF1 45 mi77 min 85°F
DKKF1 - Duck Key, FL 46 mi137 min 81°F
TCVF1 - Trout Cove, FL 46 mi137 min 82°F
JBYF1 47 mi77 min 81°F
GBIF1 - Gunboat Island, FL 47 mi77 min 83°F
BWSF1 - Blackwater Sound, FL 48 mi137 min 83°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, FL4 mi24 minno data10.00 miMostly Cloudy89°F73°F59%1013.1 hPa

Link to 5 minute data for KMTH

Wind History from MTH (wind in knots)
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2 days agoS5SW5SW6W3SW4NW3W4N4N5N5N3N4NE4CalmN7N4NE6NE7N6NE8NE9NE10NE8E8

Tide / Current Tables for Boot Key Harbor, Vaca Key, Florida (2)
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Boot Key Harbor
Click for Map
Wed -- 01:19 AM EDT     2.62 feet High Tide
Wed -- 07:13 AM EDT     Sunrise
Wed -- 08:59 AM EDT     0.21 feet Low Tide
Wed -- 01:45 PM EDT     Moonrise
Wed -- 03:22 PM EDT     1.52 feet High Tide
Wed -- 07:19 PM EDT     Sunset
Wed -- 07:56 PM EDT     0.73 feet Low Tide
Wed -- 09:56 PM EDT     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.62.62.421.510.60.30.20.30.60.91.21.41.51.51.31.10.80.70.81.21.6

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Wed -- 01:35 AM EDT     0.89 knots Max Flood
Wed -- 04:28 AM EDT     -0.00 knots Slack
Wed -- 07:13 AM EDT     Sunrise
Wed -- 08:08 AM EDT     -1.89 knots Max Ebb
Wed -- 11:48 AM EDT     0.00 knots Slack
Wed -- 01:46 PM EDT     Moonrise
Wed -- 02:47 PM EDT     1.34 knots Max Flood
Wed -- 06:24 PM EDT     -0.00 knots Slack
Wed -- 07:19 PM EDT     Sunset
Wed -- 09:20 PM EDT     -1.17 knots Max Ebb
Wed -- 09:56 PM EDT     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.80.90.60.2-0.3-1-1.6-1.9-1.8-1.3-0.70.20.91.31.31.20.90.3-0.4-0.9-1.2-1.1-0.8

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Key West, FL
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Gulf Stream Current



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