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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 7:00AM | Sunset 8:02PM | Saturday August 15, 2020 4:44 AM EDT (08:44 UTC) | Moonrise 2:19AM | Moonset 4:24PM | Illumination 13% |  |
GMZ043 Expires:202008151430;;479983 Fzus52 Kkey 150827 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 427 Am Edt Sat Aug 15 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>044-151430- 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- 427 Am Edt Sat Aug 15 2020
Today..East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms.
Tonight..East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms.
Sunday and Sunday night..East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms.
Monday..Southeast winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. Isolated showers and Thunderstorms.
Monday night..Variable winds near 5 knots, becoming east to southeast. Seas 1 foot or less. NEarshore waters smooth. Isolated showers and Thunderstorms.
Tuesday..Southeast to south winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Tuesday night through Wednesday night..Southeast to south winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Today..East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms.
Tonight..East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms.
Sunday and Sunday night..East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms.
Monday..Southeast winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. Isolated showers and Thunderstorms.
Monday night..Variable winds near 5 knots, becoming east to southeast. Seas 1 foot or less. NEarshore waters smooth. Isolated showers and Thunderstorms.
Tuesday..Southeast to south winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Tuesday night through Wednesday night..Southeast to south winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
7 Day Forecast for Marine Location Near Marathon, FL
Hourly EDIT Helplocation: 24.73, -81.03 debug
Area Discussion for - Key West, FL
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS62 KKEY 150205 AFDKEY
Area Forecast Discussion National Weather Service Key West FL 1005 PM EDT Fri Aug 14 2020
DISCUSSION. Isolated showers dot the coastal waters of the Florida Keys this evening, but the island chain remains mostly dry and muggy with dew points in the upper 70s and temperatures in the mid 80s. GOES-East infrared imagery depicts mostly clear skies along the Keys, but cumulus coverage immediately upstream across the Florida Straits is a little unsettling. Much of the coverage of cumulus across the region can be traced to rain-cooled outflow that originated from a relatively long-lived area of deep convection this afternoon in the vicinity of the Cay Sal Bank. This cluster of convective activity seemed to have activated from a remnant mesoscale convective vortex (MCV) which helped to produce multiple rounds of deep convection over the same surface relative location. In an otherwise unfavorable environment, mesoscale factors came together at the surface (moisture convergence in east-southeast flow) and aloft (TUTT-like cell providing northeasterly shear and storm top divergence). This convective system cycled for several hours, but ultimately gave way to the more suppressed synoptic scale. Cirrus has since drifted south and mostly dissipated, giving a clear view of the aforementioned cumulus boundaries that were strewn across the Middle and Upper Keys.
Concerning the forecast overnight, decided to stick with isolated coverage (20% PoPs) with no changes planned for this update. Of course the lurking MCV is the wild card, but the lack of a convective trigger will likely keep the majority of the area dry. While most guidance is in agreement in keeping convection isolated tomorrow as well, the HREF CAM suite in particular begins to diverge from this solution with a period of scattered showers and thunderstorms possible from early morning to early afternoon. Will let the overnight shift further evaluate this potential.
MARINE. No watches, warnings, or advisories are currently in effect for the coastal waters of the Florida Keys. Newly formed Tropical Storm Kyle well off the New England coast is helping to weaken the ridge axis that extends west from the North Atlantic across the Florida Peninsula, leading to marginally decreased east-southeast breezes. This slackening trend will continue into the weekend as another low pressure system follows behind Kyle and the ridge axis drops south towards the Florida Keys.
AVIATION. VFR conditions are expected to prevail at the island terminals, but a period of vicinity showers and thunderstorms are possible from early morning through early afternoon. Otherwise surface winds veer slightly more southeast and decrease to 5-8 knots.
KEY WATCHES/WARNINGS/ADVISORIES. FL . None. GM . None.
Public/Marine/Fire . WLC Aviation/Nowcasts . WLC Data Acquisition . DR
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| 1 AM | -12 PM | 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 | 12 AM | |
| Last 24hr | SE G10 | E G10 | SE | SE G7 | SE G8 | SE G8 | SE G9 | SE G10 | SE G9 | SE G9 | E G10 | E G7 | E G8 | E G13 | SE G10 | E G11 | SE G11 | SE G12 | SE G12 | SE | SE G9 | E G10 | E G10 | |
| 1 day ago | E G7 | E | E G6 | -- | E G9 | SE G10 | SE G12 | SE G7 | S G10 | S | NW | SE | SE G9 | E G13 | E G16 | E G13 | E G12 | SE G11 | E G11 | SE G10 | E G9 | E G9 | E G12 | E G12 |
| 2 days ago | SE G6 | SE | SE G7 | E G8 | SE G10 | E G12 | E G11 | E G10 | E G9 | SE G9 | SE G13 | E G12 | SE G12 | SE G10 | E G8 | SE G9 | SE G8 | E G9 | E G11 |
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 | 1 mi | 51 min | SE 5 | 10.00 mi | Partly Cloudy | 83°F | 77°F | 82% | 1013.6 hPa |
Link to 5 minute data for KMTH
Wind History from MTH (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | |
| Last 24hr | SE | SE | SE | SE | SE | SE | SE | SE | E | E | E | SE | SE | E G16 | SE | SE | SE | E | E | E | SE | SE | SE | |
| 1 day ago | E | SE | SE G16 | SE | SE | E | SE | SE | E | E | E | E | E | E | E | E | E | E | E | E | E | SE | E | |
| 2 days ago | E | SE | E | E | SE | E | SE | E | SE | SE G14 | E | E | E | E | E | E | E G22 | E | E | E | E | E | NE |
Tide / Current Tables for Vaca Key-Fat Deer Key bridge, Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataVaca Key-Fat Deer Key bridge
Click for Map
Sat -- 03:19 AM EDT Moonrise
Sat -- 06:01 AM EDT 1.85 feet High Tide
Sat -- 06:58 AM EDT Sunrise
Sat -- 01:52 PM EDT 0.10 feet Low Tide
Sat -- 05:24 PM EDT Moonset
Sat -- 07:57 PM EDT Sunset
Sat -- 08:02 PM EDT 1.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 03:19 AM EDT Moonrise
Sat -- 06:01 AM EDT 1.85 feet High Tide
Sat -- 06:58 AM EDT Sunrise
Sat -- 01:52 PM EDT 0.10 feet Low Tide
Sat -- 05:24 PM EDT Moonset
Sat -- 07:57 PM EDT Sunset
Sat -- 08:02 PM EDT 1.13 feet High 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 |
| 0.6 | 0.7 | 1 | 1.3 | 1.6 | 1.8 | 1.8 | 1.8 | 1.6 | 1.3 | 1 | 0.6 | 0.3 | 0.1 | 0.1 | 0.2 | 0.4 | 0.6 | 0.9 | 1.1 | 1.1 | 1.1 | 0.9 | 0.7 |
Tide / Current Tables for Moser Channel (swingbridge), Florida Current
EDIT (on/off) Help One Week of DataMoser Channel (swingbridge)
Click for Map
Sat -- 01:07 AM EDT -1.28 knots Max Ebb
Sat -- 03:19 AM EDT Moonrise
Sat -- 04:18 AM EDT 0.00 knots Slack
Sat -- 06:35 AM EDT 0.73 knots Max Flood
Sat -- 06:59 AM EDT Sunrise
Sat -- 09:18 AM EDT -0.00 knots Slack
Sat -- 12:58 PM EDT -1.92 knots Max Ebb
Sat -- 04:27 PM EDT 0.00 knots Slack
Sat -- 05:24 PM EDT Moonset
Sat -- 07:39 PM EDT 1.57 knots Max Flood
Sat -- 07:58 PM EDT Sunset
Sat -- 10:56 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 01:07 AM EDT -1.28 knots Max Ebb
Sat -- 03:19 AM EDT Moonrise
Sat -- 04:18 AM EDT 0.00 knots Slack
Sat -- 06:35 AM EDT 0.73 knots Max Flood
Sat -- 06:59 AM EDT Sunrise
Sat -- 09:18 AM EDT -0.00 knots Slack
Sat -- 12:58 PM EDT -1.92 knots Max Ebb
Sat -- 04:27 PM EDT 0.00 knots Slack
Sat -- 05:24 PM EDT Moonset
Sat -- 07:39 PM EDT 1.57 knots Max Flood
Sat -- 07:58 PM EDT Sunset
Sat -- 10:56 PM EDT -0.00 knots Slack
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 |
| -1.1 | -1.3 | -1.2 | -0.8 | -0.2 | 0.4 | 0.7 | 0.7 | 0.5 | 0.2 | -0.5 | -1.2 | -1.7 | -1.9 | -1.7 | -1.2 | -0.4 | 0.5 | 1.2 | 1.5 | 1.6 | 1.3 | 0.8 | -0.1 |
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 (4,6,7,8)
(on/off) Help
Ground Weather Radar Station Key West, FL
(on/off) Help
Gulf Stream Current
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