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Marine Weather and Tides
Version 3.4 |
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 7:10AM | Sunset 6:08PM | Saturday January 25, 2020 8:48 AM EST (13:48 UTC) | Moonrise 7:48AM | Moonset 6:53PM | Illumination 0% |  |
GMZ043 Expires:202001251545;;486686 Fzus52 Kkey 251021 Cca Cwfkey Coastal Waters Forecast For The Florida Keys...corrected National Weather Service Key West Fl 442 Am Est Sat Jan 25 2020 Corrected To Insert Sea Heights On The Bayside And Gulf First Period 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>044-251545- 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- 442 Am Est Sat Jan 25 2020
Today..Mainly north winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. West of the seven mile bridge, north winds near 10 knots, increasing to near 15 knots this afternoon. Seas 1 to 2 feet. Building to 2 to 3 feet. NEarshore waters a light chop, becoming a moderate chop. Isolated showers.
Tonight..North winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop.
Sunday..North to northeast winds 10 to 15 knots, becoming northeast and decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop.
Sunday night..Northeast winds 5 to 10 knots, becoming variable after midnight. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers.
Monday..Variable winds 5 to 10 knots, becoming southwest to west and increasing to 10 to 15 knots late. Seas around 1 foot, building to 1 to 3 feet. NEarshore waters becoming a light to moderate chop. Scattered showers and isolated Thunderstorms developing in the afternoon.
Monday night..Winds becoming northwest to north near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms in the evening, then isolated showers.
Tuesday..North to northeast winds 10 to 15 knots, decreasing to near 10 knots in the afternoon. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Isolated showers.
Tuesday night..North to northeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers.
Wednesday..Variable winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers.
Wednesday night..North to northeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers.
Today..Mainly north winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. West of the seven mile bridge, north winds near 10 knots, increasing to near 15 knots this afternoon. Seas 1 to 2 feet. Building to 2 to 3 feet. NEarshore waters a light chop, becoming a moderate chop. Isolated showers.
Tonight..North winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop.
Sunday..North to northeast winds 10 to 15 knots, becoming northeast and decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop.
Sunday night..Northeast winds 5 to 10 knots, becoming variable after midnight. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers.
Monday..Variable winds 5 to 10 knots, becoming southwest to west and increasing to 10 to 15 knots late. Seas around 1 foot, building to 1 to 3 feet. NEarshore waters becoming a light to moderate chop. Scattered showers and isolated Thunderstorms developing in the afternoon.
Monday night..Winds becoming northwest to north near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms in the evening, then isolated showers.
Tuesday..North to northeast winds 10 to 15 knots, decreasing to near 10 knots in the afternoon. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Isolated showers.
Tuesday night..North to northeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers.
Wednesday..Variable winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers.
Wednesday night..North to northeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers.
7 Day Forecast for Marine Location Near Duck Key, FL
Hourly EDIT Helplocation: 24.79, -80.88 debug
Area Discussion for - Key West, FL
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS62 KKEY 251052 AFDKEY
Area Forecast Discussion National Weather Service Key West FL 552 AM EST Sat Jan 25 2020
DISCUSSION. CURRENTLY. Under partly cloudy skies and light north winds, temperatures are in the mid 60s along the Florida Keys. Meanwhile, local radars are detecting only isolated shallow showers on the Straits of Florida. On our marine district, winds are north ranging from 4 knots at Pulaski Shoal Light to 13 knots at Alligator Reef Light.
SHORT TERM. (Today through Monday night) High pressure over the central Gulf coast region this morning will track eastward and move across the Sunshine State on Sunday. With that, a lack of low level confluence and decreasing moisture will prompt only nickle pops to be inserted in the grids for the island chain today through Sunday. Thereafter, forecast confidence drops off considerably, as a southern stream mid and upper level short wave trough is expected to migrate eastward through the Gulf of Mexico late Sunday night and Monday, before crossing the Florida Peninsula Monday night. However, it appears the large scale ascent will lag behind the low level confluent frontal boundary. In addition, both GFS and the Canadian guidance indicate the surface reflection will dissipate before reaching the Sunshine State, while the ECMWF has become more bullish. Given the divergence and flip flopping, will retain only isolated rain chances beginning Sunday night through Monday morning, with high chance pops Monday afternoon and evening. Temperatures will be near to slightly below normal through Sunday, before moderating late Sunday night and Monday.
LONG TERM. (Tuesday through Friday) Above normal uncertainty for this time frame with medium range guidance and ensemble members diverging considerably especially on Wednesday and Wednesday night. Regardless, moisture should be limited with no extreme temperatures expected through this period. Subsequently, near climo pops and temperatures will be kept through this time frame. Hence, 10 to 20 percent rain chances with low temperatures generally in the mid 60s with afternoon highs in the mid to upper 70s are anticipated.
MARINE. Mainly north winds near 10 knots will prevail on most Keys coastal waters, except near 15 knots with gusts near 20 knots on the outer waters of Mainland Monroe southward into the Straits out 60 nm. Otherwise, gentle to occasional moderate mostly north winds will predominate tonight and early Sunday morning, before decreasing into the light to gentle range through Monday morning. Thereafter, winds will become moderate behind a weak cold front Monday night, before slackening again late Tuesday into Wednesday.
AVIATION. VFR conditions should prevail at both terminals. Overnight BKN clouds at FL080, winds near 5 knots and temperature and dew point spread has been just enough to inhibit significant fog formation. Currently, confidence is not high enough to include fog in the forecast. Once the front clears the island chain this afternoon, north winds near 10 knots and relatively drier air will bring sustained VFR conditions for the remainder of the forecast period.
CLIMATE. In 1940, the daily record low temperature of 49 degrees was recorded in Key West. Temperature records date back to 1872.
PRELIMINARY POINT TEMPS/POPS. Key West 75 63 72 64 / - - - 20 Marathon 76 62 71 64 / - - - 20
KEY WATCHES/WARNINGS/ADVISORIES. FL . None. GM . None.
Public/Marine/Fire . APA Aviation/Nowcasts . Chesser
Visit us on the web at weather.gov/key
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Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapWind History for Vaca Key, FL
(wind in knots) EDIT (on/off) Help| 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | |
| Last 24hr | W | NW G6 | NW | NW G6 | NW | NW | NW | NW | NW | NW | SW G4 | S | S | -- | N G7 | NE | NE | NE | NE | NE | NE | N | NE | NE |
| 1 day ago | NE G7 | NE | N | N G8 | NE | N | NW | N | N | N | N | NE G9 | NE | NE | NE | NE | NE | E G6 | SW | N | N | NW | NW | NW |
| 2 days ago | N G17 | NW G21 | NW G22 | NW G19 | NW G18 | NW G19 | NW G23 | NW G20 | N G14 | NW G13 | N G13 | N G16 | N G15 | N G15 | N G16 | NE | NE | NE G11 | N G11 | N G9 | NE G12 | NE | NE G11 | NE |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| The Florida Keys - Marathon International Airport, FL | 10 mi | 56 min | NNE 6 | 10.00 mi | Overcast | 67°F | 64°F | 91% | 1017.8 hPa |
Link to 5 minute data for KMTH
Wind History from MTH (wind in knots)
| 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | |
| Last 24hr | NW | N | N | N | NW | Calm | NW | Calm | W | Calm | S | Calm | N | N | Calm | N | N | NE | NE | N | N | NE | ||
| 1 day ago | N | N | N | N | NE | N | N | N | N | Calm | NE | N | NE | NE | NE | N | NE | NE | NE | NE | NW | W | N | N |
| 2 days ago | N G23 | NW G21 | NW | NW | NW G19 | NW G22 | N G18 | NW G21 | N G18 | N | N | N | N | N | N | N | N | N | N | N | N | N |
Tide / Current Tables for Long Key Channel (West), Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataLong Key Channel (West)
Click for Map
Sat -- 03:26 AM EST 1.33 feet High Tide
Sat -- 07:08 AM EST Sunrise
Sat -- 07:47 AM EST Moonrise
Sat -- 09:58 AM EST -0.39 feet Low Tide
Sat -- 04:39 PM EST 0.67 feet High Tide
Sat -- 06:03 PM EST Sunset
Sat -- 06:53 PM EST Moonset
Sat -- 09:10 PM EST 0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 03:26 AM EST 1.33 feet High Tide
Sat -- 07:08 AM EST Sunrise
Sat -- 07:47 AM EST Moonrise
Sat -- 09:58 AM EST -0.39 feet Low Tide
Sat -- 04:39 PM EST 0.67 feet High Tide
Sat -- 06:03 PM EST Sunset
Sat -- 06:53 PM EST Moonset
Sat -- 09:10 PM EST 0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.7 | 1 | 1.2 | 1.3 | 1.3 | 1.1 | 0.8 | 0.3 | -0.1 | -0.3 | -0.4 | -0.3 | -0.2 | 0.1 | 0.3 | 0.5 | 0.6 | 0.7 | 0.5 | 0.3 | 0.1 | 0 | 0.1 | 0.3 |
Tide / Current Tables for Long Key Viaduct, Florida Current
EDIT (on/off) Help One Week of DataLong Key Viaduct
Click for Map
Sat -- 03:09 AM EST -1.53 knots Max Ebb
Sat -- 06:26 AM EST 0.00 knots Slack
Sat -- 07:08 AM EST Sunrise
Sat -- 07:47 AM EST Moonrise
Sat -- 09:27 AM EST 1.14 knots Max Flood
Sat -- 12:41 PM EST -0.00 knots Slack
Sat -- 03:46 PM EST -1.19 knots Max Ebb
Sat -- 06:03 PM EST Sunset
Sat -- 06:48 PM EST 0.00 knots Slack
Sat -- 06:53 PM EST Moonset
Sat -- 09:16 PM EST 0.80 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 03:09 AM EST -1.53 knots Max Ebb
Sat -- 06:26 AM EST 0.00 knots Slack
Sat -- 07:08 AM EST Sunrise
Sat -- 07:47 AM EST Moonrise
Sat -- 09:27 AM EST 1.14 knots Max Flood
Sat -- 12:41 PM EST -0.00 knots Slack
Sat -- 03:46 PM EST -1.19 knots Max Ebb
Sat -- 06:03 PM EST Sunset
Sat -- 06:48 PM EST 0.00 knots Slack
Sat -- 06:53 PM EST Moonset
Sat -- 09:16 PM EST 0.80 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| -0.3 | -0.9 | -1.3 | -1.5 | -1.4 | -1 | -0.3 | 0.4 | 0.9 | 1.1 | 1.1 | 0.9 | 0.4 | -0.2 | -0.8 | -1.1 | -1.2 | -1 | -0.5 | 0.1 | 0.6 | 0.8 | 0.8 | 0.5 |
Weather Map
(on/off) Help Weather Map
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
Wind Forecast for Key West, FL (8,2,3,4)
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Ground Weather Radar Station Key West, FL
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Gulf Stream Current
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