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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:56AM | Sunset 7:53PM | Wednesday August 21, 2019 7:09 AM EDT (11:09 UTC) | Moonrise 10:45PM | Moonset 11:00AM | Illumination 67% |  |
GMZ043 Expires:201908211445;;973268 Fzus52 Kkey 210831 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 431 Am Edt Wed Aug 21 2019 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>044-211445- 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- 431 Am Edt Wed Aug 21 2019
Today..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms developing.
Tonight..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms in the evening, becoming isolated showers and Thunderstorms.
Thursday..Northeast to east winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Thursday night..Northeast to east winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms.
Friday..East winds near 10 knots, becoming east to southeast. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Friday night..East to southeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Saturday through Sunday night..Southeast to south winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and Thunderstorms.
Today..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms developing.
Tonight..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms in the evening, becoming isolated showers and Thunderstorms.
Thursday..Northeast to east winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Thursday night..Northeast to east winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms.
Friday..East winds near 10 knots, becoming east to southeast. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Friday night..East to southeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Saturday through Sunday night..Southeast to south winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and Thunderstorms.
7 Day Forecast for Marine Location Near Layton, FL
Hourly EDIT Helplocation: 24.8, -80.65 debug
Area Discussion for - Key West, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kkey 210841 afdkey area forecast discussion national weather service key west fl 441 am edt Wed aug 21 2019 Discussion Currently Under partly cloudy skies and a steady east to southeast wind of round 10 mph, temperatures range from the mid to upper 70s to lower 80s along the florida keys. Meanwhile, local radars are detecting isolated showers and thunderstorms over our service area. On our marine district, winds are east to southeast ranging from 9 knots at pulaski shoal light to 14 knots at smith shoal light. Short term (today through Friday night) an elongated, east-west oriented low level trough over the bahamas will slowly become better organized, before moving westward and across our region Friday and into the extreme southeast gulf of mexico late Friday night. With a broad cyclonic flow, plenty of moisture, little if any convective inhibition and a light northeast to east trajectory, mesoscale forcing in the form of wet cloud line genesis along with cells migrating off the south florida mainland and into our area will be the primary precipitation sources. Hence, outside of late this evening and overnight, high chance pops will be retained for most of this forecast cycle. Due to variably cloudy skies and at least a few episodes of rainfall, high temperatures will average near 90 with overnight lows ranging from the mid 70s to lower 80s. Long term (Saturday through Tuesday) the persistent, north-south oriented trough (below 700 mb) extending from the western portion of the island of cuba, northward into the extreme southeast gulf of mexico will drift slowly westward this weekend and early next week. In wake of the undulation, a western atlantic high pressure cell will slide across the archipelago of cuba and into the straits of florida. But until then, a broad cyclonic flow combined with plenty of |
moisture will prompt middle of the road chance pops to start the weekend, before some drier air filters in resulting in low chance climo pops thereafter. Marine Away from showers, thunderstorms, outflow boundaries and possible waterspouts, gentle to moderate winds with the higher winds mainly south of the island chain for at least the next couple of days. Thereafter, light to gentle southeast to south winds will predominate for this weekend. Aviation Moist easterly flow will gradually weaken across the eyw and mth terminals today. Although convective coverage has decreased considerably near the terminals since midnight, redevelopment will remain possible at any time. This afternoon, the decreasing E flow may become favorable for cloud line development along the island chain. Due to high uncertainty in the specific timing and coverage of any convection, have included only vcsh in the terminal forecasts at this point. Climate In 1923, the daily record low temperature of 71 degrees was recorded in key west. Temperature records date back to 1872. Preliminary point temps pops Key west 90 81 90 81 50 50 50 50 marathon 92 81 93 82 50 40 50 50 Key watches warnings advisories Fl... None. Gm... None. Public marine fire... Apa aviation nowcasts... .Jacobson visit us on the web at weather.Gov key follow us on facebook and twitter at: |
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| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
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 | 22 mi | 77 min | ESE 5 | 10.00 mi | A Few Clouds | 83°F | 75°F | 77% | 1016.7 hPa |
Link to 5 minute data for KMTH
Wind History from MTH (wind in knots)
| 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 | 5 AM | 6 AM | |
| Last 24hr | SE G15 | E | E | SE | SE | SE | SE | E | E | E G15 | E G15 | E G18 | SE | SE | E | E | S G20 | SE | SE G15 | SE | SE | SE | SE | SE |
| 1 day ago | E | E | E G17 | E | E G18 | E G17 | E | SE | SE | SE | SE | E | SE | SE | E | E | E | E | E | SE G15 | SE | SE | E | E |
| 2 days ago | E | E | E | E | E | E | E G15 | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E |
Tide / Current Tables for Alligator Reef Light, Florida (2)
EDIT Weekend mode (on/off) (on/off) Help One Week of DataAlligator Reef Light
Click for Map
Wed -- 12:49 AM EDT 1.95 feet High Tide
Wed -- 06:59 AM EDT Sunrise
Wed -- 07:02 AM EDT 0.28 feet Low Tide
Wed -- 12:00 PM EDT Moonset
Wed -- 01:22 PM EDT 1.92 feet High Tide
Wed -- 07:23 PM EDT 0.48 feet Low Tide
Wed -- 07:51 PM EDT Sunset
Wed -- 11:44 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:49 AM EDT 1.95 feet High Tide
Wed -- 06:59 AM EDT Sunrise
Wed -- 07:02 AM EDT 0.28 feet Low Tide
Wed -- 12:00 PM EDT Moonset
Wed -- 01:22 PM EDT 1.92 feet High Tide
Wed -- 07:23 PM EDT 0.48 feet Low Tide
Wed -- 07:51 PM EDT Sunset
Wed -- 11:44 PM EDT Moonrise
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 |
| 1.9 | 1.9 | 1.8 | 1.5 | 1.1 | 0.7 | 0.4 | 0.3 | 0.4 | 0.6 | 1 | 1.4 | 1.7 | 1.9 | 1.9 | 1.7 | 1.3 | 1 | 0.7 | 0.5 | 0.5 | 0.7 | 1 | 1.4 |
Tide / Current Tables for Long Key, east of drawbridge, Florida Current
EDIT (on/off) Help One Week of DataLong Key
Click for Map
Wed -- 12:36 AM EDT 0.92 knots Max Flood
Wed -- 03:50 AM EDT -0.00 knots Slack
Wed -- 06:59 AM EDT Sunrise
Wed -- 07:00 AM EDT -1.16 knots Max Ebb
Wed -- 10:16 AM EDT 0.00 knots Slack
Wed -- 12:01 PM EDT Moonset
Wed -- 01:06 PM EDT 1.00 knots Max Flood
Wed -- 04:39 PM EDT -0.00 knots Slack
Wed -- 07:30 PM EDT -0.96 knots Max Ebb
Wed -- 07:52 PM EDT Sunset
Wed -- 10:41 PM EDT 0.00 knots Slack
Wed -- 11:45 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:36 AM EDT 0.92 knots Max Flood
Wed -- 03:50 AM EDT -0.00 knots Slack
Wed -- 06:59 AM EDT Sunrise
Wed -- 07:00 AM EDT -1.16 knots Max Ebb
Wed -- 10:16 AM EDT 0.00 knots Slack
Wed -- 12:01 PM EDT Moonset
Wed -- 01:06 PM EDT 1.00 knots Max Flood
Wed -- 04:39 PM EDT -0.00 knots Slack
Wed -- 07:30 PM EDT -0.96 knots Max Ebb
Wed -- 07:52 PM EDT Sunset
Wed -- 10:41 PM EDT 0.00 knots Slack
Wed -- 11:45 PM EDT Moonrise
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 |
| 0.9 | 0.9 | 0.7 | 0.3 | -0.1 | -0.6 | -1 | -1.2 | -1 | -0.6 | -0.1 | 0.4 | 0.8 | 1 | 0.9 | 0.6 | 0.3 | -0.2 | -0.6 | -0.9 | -0.9 | -0.7 | -0.3 | 0.1 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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 (7,2,3,4)
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Ground Weather Radar Station Miami, FL
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Gulf Stream Current
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Disclaimer: The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program. |