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Marine Weather and Tides
Version 3.4 |
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. 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 7:27AM | Sunset 6:55PM | Tuesday October 22, 2019 8:58 PM EDT (00:58 UTC) | Moonrise 12:26AM | Moonset 2:12PM | Illumination 31% |  |
GMZ053 Expires:201910230230;;114564 Fzus52 Kkey 222019 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 419 Pm Edt Tue Oct 22 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. Gmz052>055-072>075-230230- Straits Of Florida From Ocean Reef To Craig Key Out 20 Nm- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge Out 20 Nm- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal Out 20 Nm- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas Out 20 Nm- Straits Of Florida From Ocean Reef To Craig Key 20 To 60 Nm Out- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge 20 To 60 Nm Out- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal 20 To 60 Nm Out- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas 20 To 60 Nm Out- 419 Pm Edt Tue Oct 22 2019
Tonight..East to southeast winds 5 to 10 knots, becoming northeast to east and increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Scattered showers.
Wednesday..Northeast to east winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 4 feet, building to 3 to 4 feet. Isolated showers.
Wednesday night..East winds 15 to 20 knots. Seas 4 to 5 feet, building to 4 to 6 feet. Scattered showers.
Thursday and Thursday night..East winds near 20 knots. Seas 5 to 7 feet. Scattered showers and isolated Thunderstorms.
Friday..East to southeast winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers and isolated Thunderstorms.
Friday night..Southeast winds near 15 knots. Seas 3 to 5 feet. Scattered showers and isolated Thunderstorms.
Saturday..Southeast to south winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Saturday night and Sunday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Sunday night..East to southeast winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Tonight..East to southeast winds 5 to 10 knots, becoming northeast to east and increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Scattered showers.
Wednesday..Northeast to east winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 4 feet, building to 3 to 4 feet. Isolated showers.
Wednesday night..East winds 15 to 20 knots. Seas 4 to 5 feet, building to 4 to 6 feet. Scattered showers.
Thursday and Thursday night..East winds near 20 knots. Seas 5 to 7 feet. Scattered showers and isolated Thunderstorms.
Friday..East to southeast winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers and isolated Thunderstorms.
Friday night..Southeast winds near 15 knots. Seas 3 to 5 feet. Scattered showers and isolated Thunderstorms.
Saturday..Southeast to south winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Saturday night and Sunday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Sunday night..East to southeast winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
7 Day Forecast for Marine Location Near Key Colony Beach, FL
Hourly EDIT Helplocation: 24.7, -81.1 debug
Area Discussion for - Key West, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kkey 221922 afdkey area forecast discussion national weather service key west fl 322 pm edt Tue oct 22 2019 Discussion Mean-layer ridging centered east of florida maintains a weak surface ridge axis which stretches west to south florida. Light breezes prevail across the coastal waters of the florida keys. Temperatures are near 90 for most locations with dewpoints in the mid 70s. The island chain has been rain free. Forecast Lower heights across the southeastern united states will pivot northeast tonight, allowing the mean-layer ridge to rebuild to the west on Wednesday. Meanwhile, high pressure currently centered near the mississippi river valley will progress quickly to the east. Northeast breezes will freshen overnight, inducing weak low-level convergence across the island chain. We nudged rain chances up slightly overnight to 20-30%. An extended period of moderate to fresh easterlies are expected Wednesday through Friday night as the high pressure system takes on subtropical aspirations across the western north atlantic. A frontal system may die across the gulf of mexico Friday night through Saturday night. Once again, a cold air tease for the florida keys, although we will need to watch out for any vigorous convection over the gulf trying to cold pool towards the east-southeast. Low level ridging will attempt to rebuild across florida Sunday through Tuesday, marking a return to the east- southeasterlies. We highlight 30-40% |
rain chances Thursday through Tuesday, although there are no identifiable moisture surges apparent on satellite derived moisture products. Marine No current watches, warnings, or advisories. From synopsis, a ridge of high pressure will linger over south florida this evening. High pressure currently centered over the mississippi river valley will retreat into the western atlantic Wednesday through Saturday. Aviation Vfr and light east to southeast breezes will prevail at the eyw and mth terminals through the evening. Gentle northeast breezes will infiltrate the terminals around midnight, which may introduce brief rain chances. The confidence in the amount of low-level moisture convergence is low at this time. Preliminary point temps pops Key west 81 87 80 87 30 20 30 40 marathon 81 89 80 88 30 20 30 40 Key watches warnings advisories Fl... None. Gm... None. Public marine fire... Clr aviation nowcasts... .Clr data collection... ... Kbl 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| 9 PM | 10 PM | 11 PM | 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 | |
| Last 24hr | E | E | E G7 | SE G8 | SE G8 | SE G7 | SE G7 | SE | SE | SE | SE | SE | E | NE | NE | SE G8 | SE | SE G9 | E G7 | SE G8 | E G5 | W | NW | N |
| 1 day ago | SE | SE | SE | SE | SE | SE | S | S | SE | SE | SE | S | S G9 | S G12 | S G12 | S G12 | S | S G9 | S G10 | SE G10 | W | NW | W | E |
| 2 days ago | S | S G10 | S G10 | S G9 | S G12 | S G11 | S G12 | S G10 | S G10 | S G9 | S G10 | SW G8 | SW G9 | SW G11 | S G9 | SW G8 | SW G8 | SW G8 | SW G8 | SW G7 | SW G6 | S G6 | S | S |
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 | 4 mi | 66 min | NE 4 | 10.00 mi | Mostly Cloudy | 84°F | 75°F | 74% | 1014.5 hPa |
Link to 5 minute data for KMTH
Wind History from MTH (wind in knots)
| 9 PM | 10 PM | 11 PM | 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 | |
| Last 24hr | E | E | E | E | SE | SE | SE | E | SE | SE | Calm | Calm | Calm | Calm | SE | SE | S | Calm | Calm | Calm | NE | |||
| 1 day ago | Calm | Calm | Calm | SE | SE | SE | SE | SE | SE | SE | SE | S | SE | SE | SE | S | S | S | Calm | Calm | Calm | Calm | ||
| 2 days ago | SE | S G16 | S G16 | S | S G16 | S | S | S | S | S | S | SW | SW | S | SW | S | S | S | S | S | S | SW | S |
Tide / Current Tables for Boot Key Harbor, Vaca Key, Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataBoot Key Harbor
Click for Map
Tue -- 01:25 AM EDT Moonrise
Tue -- 03:17 AM EDT 2.34 feet High Tide
Tue -- 07:25 AM EDT Sunrise
Tue -- 11:04 AM EDT 0.50 feet Low Tide
Tue -- 03:11 PM EDT Moonset
Tue -- 05:39 PM EDT 1.59 feet High Tide
Tue -- 06:51 PM EDT Sunset
Tue -- 10:27 PM EDT 1.18 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 01:25 AM EDT Moonrise
Tue -- 03:17 AM EDT 2.34 feet High Tide
Tue -- 07:25 AM EDT Sunrise
Tue -- 11:04 AM EDT 0.50 feet Low Tide
Tue -- 03:11 PM EDT Moonset
Tue -- 05:39 PM EDT 1.59 feet High Tide
Tue -- 06:51 PM EDT Sunset
Tue -- 10:27 PM EDT 1.18 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 |
| 1.7 | 2 | 2.2 | 2.3 | 2.3 | 2.1 | 1.9 | 1.5 | 1.2 | 0.8 | 0.6 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.5 | 1.6 | 1.6 | 1.5 | 1.4 | 1.3 | 1.2 | 1.2 |
Tide / Current Tables for Moser Channel (swingbridge), Florida Current
EDIT (on/off) Help One Week of DataMoser Channel (swingbridge)
Click for Map
Tue -- 01:25 AM EDT Moonrise
Tue -- 01:42 AM EDT 0.00 knots Slack
Tue -- 03:55 AM EDT 0.73 knots Max Flood
Tue -- 06:54 AM EDT -0.00 knots Slack
Tue -- 07:26 AM EDT Sunrise
Tue -- 10:31 AM EDT -1.68 knots Max Ebb
Tue -- 02:04 PM EDT 0.00 knots Slack
Tue -- 03:12 PM EDT Moonset
Tue -- 05:03 PM EDT 1.29 knots Max Flood
Tue -- 06:51 PM EDT Sunset
Tue -- 08:24 PM EDT -0.00 knots Slack
Tue -- 11:33 PM EDT -1.50 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 01:25 AM EDT Moonrise
Tue -- 01:42 AM EDT 0.00 knots Slack
Tue -- 03:55 AM EDT 0.73 knots Max Flood
Tue -- 06:54 AM EDT -0.00 knots Slack
Tue -- 07:26 AM EDT Sunrise
Tue -- 10:31 AM EDT -1.68 knots Max Ebb
Tue -- 02:04 PM EDT 0.00 knots Slack
Tue -- 03:12 PM EDT Moonset
Tue -- 05:03 PM EDT 1.29 knots Max Flood
Tue -- 06:51 PM EDT Sunset
Tue -- 08:24 PM EDT -0.00 knots Slack
Tue -- 11:33 PM EDT -1.50 knots Max Ebb
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 | -0.4 | 0.2 | 0.6 | 0.7 | 0.6 | 0.4 | -0 | -0.7 | -1.3 | -1.6 | -1.6 | -1.4 | -0.8 | -0.1 | 0.7 | 1.2 | 1.3 | 1.2 | 0.9 | 0.3 | -0.5 | -1.1 | -1.5 |
Weather Map
(on/off) Help Weather Map
GEOS Local Image of Southeast 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 (20,4,5,8)
(on/off) Help
Ground Weather Radar Station Key West, FL
(on/off) Help
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. |