Sunday, May31, 2020
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Marine Weather and Tides
Big Coppitt Key, FL

Version 3.4
NOTICE
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 6:36AMSunset 8:12PM Sunday May 31, 2020 1:26 PM EDT (17:26 UTC) Moonrise 1:59PMMoonset 1:52AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 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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GMZ035 Expires:202005312100;;039980 Fzus52 Kkey 311421 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 1021 Am Edt Sun May 31 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. Gmz032-035-312100- Bayside And Gulf Side From Craig Key To West End Of Seven Mile Bridge- Gulf Of Mexico From West End Of Seven Mile Bridge To Halfmoon Shoal Out To 5 Fathoms- 1021 Am Edt Sun May 31 2020
Today..East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms.
Tonight..East to southeast winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Isolated showers and Thunderstorms.
Monday..East winds near 10 knots, increasing to 10 to 15 knots. Seas around 1 foot. NEarshore waters a light chop, becoming a light to moderate chop. Isolated showers and Thunderstorms.
Monday night and Tuesday..East winds near 15 knots. Seas 1 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms.
Tuesday night through Wednesday night..East winds near 15 knots. Seas 1 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms.
Thursday and Thursday night..East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.


7 Day Forecast for Marine Location Near Big Coppitt Key, FL
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location: 24.55, -81.53     debug


Area Discussion for - Key West, FL
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FXUS62 KKEY 311458 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1058 AM EDT Sun May 31 2020

DISCUSSION. Currently - Some isolated showers developed earlier this morning and continue to move west northwest across the Florida Straits, over the Middle and Upper Keys, and out over the Gulfside waters. These showers for the most part are light though there are a few very isolated pockets of moderate intensity have been observed. Additional isolated showers are moving in the easterly flow over the western distant Florida Straits. Otherwise, skies are mostly sunny aside from the occasional passing shower up in the Upper Keys. Current observations reveal temperatures in the mid to upper 80s with a light easterly wind under 10 mph.

Short term update - Meager moisture will continue to filter across the area thanks to our easterly wind. However, with that being said, descent provided by the mid and upper level ridge will suppress more large scale shower activity and growth and will limit coverage to isolated for today. Descent aloft and meager moisture will continue into Monday with PoPs holding at just slight (10 to 20 percent). Thereafter a large surface high will emerge over the Atlantic and build southward. This will lead to an increase in moisture but also serve to tighten the gradient and increase winds over the area. Therefore, given the increase in moisture flux PoPs will steadily increase to 40 percent by Tuesday.

MARINE. No watches, warnings, or advisories are currently in effect. Steady easterly breezes will continue in the light to gentle range for this afternoon. A minor surge is possible over the Florida Straits this evening with the potential for gentle to moderate breezes. Thereafter, a surface high will emerge and build south across the western Atlantic. This will lead to a general freshening of breezes with an increase chance for showers and isolated thunderstorms. Uncertainty remains regarding the exact strength of the winds expected. Nonetheless, Small Craft Exercise Caution headlines are likely with potentially Small Craft Advisory conditions.

AVIATION. VFR conditions will persist. There have been some isolated showers moving across and near the MTH terminal. As such, will introduce a VCSH for MTH due to the persistence of these showers and flow direction. Regardless, minimal impacts if at all expected. Lastly, there is a small chance a cloud line could develop given the ENE winds between FL010-030, though it will be fighting the somewhat dry air.

KEY WATCHES/WARNINGS/ADVISORIES. FL . None. GM . None.

Public/Marine/Fire . LIW Aviation/Nowcasts . LIW Data Collection . KBL

Visit us on the web at weather.gov/key

Follow us on Facebook and Twitter at: www.facebook.com/nwskeywest www.twitter.com/nwskeywest


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KYWF1 - 8724580 - Key West, FL 15 mi57 min SE 8 G 12 91°F 86°F1016.9 hPa
SMKF1 - Sombrero Key, FL 23 mi37 min E 12 G 14 82°F 76°F
VCAF1 - 8723970 - Vaca Key, FL 25 mi57 min ESE 6 G 11 85°F 87°F1016.8 hPa
JKYF1 - Johnson Key, FL 48 mi87 min 87°F
LRKF1 - Little Rabbit Key, FL 48 mi147 min 86°F
MUKF1 - Murray Key, FL 49 mi87 min 86°F
PKYF1 - Peterson Key, FL 49 mi87 min 86°F

Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West Naval Air Station, FL9 mi34 minE 12 G 1710.00 miFair91°F75°F59%1016.5 hPa
Key West International Airport, FL12 mi34 minESE 1210.00 miA Few Clouds88°F75°F66%1016.6 hPa

Link to 5 minute data for KNQX

Wind History from NQX (wind in knots)
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Last 24hrSE12E11E10SE9E10E12E12E11E11E10E11E8E8E8E5E5CalmE4E5E6E6E10E11E12
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2 days agoSE9SE13SE10E11E11E14E16E13E13E13E11E9E8E8E12
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Tide / Current Tables for Key Lois, southeast end, Florida
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Key Lois
Click for Map
Sun -- 02:51 AM EDT     Moonset
Sun -- 04:57 AM EDT     1.44 feet High Tide
Sun -- 06:36 AM EDT     Sunrise
Sun -- 11:02 AM EDT     0.28 feet Low Tide
Sun -- 02:58 PM EDT     Moonrise
Sun -- 04:57 PM EDT     1.44 feet High Tide
Sun -- 08:10 PM EDT     Sunset
Sun -- 11:22 PM EDT     0.13 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.60.91.21.41.41.41.20.90.60.40.30.40.60.91.21.41.41.41.20.90.60.30.1

Tide / Current Tables for Key West, Florida Current
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Key West
Click for Map
Sun -- 12:47 AM EDT     0.00 knots Slack
Sun -- 02:53 AM EDT     Moonset
Sun -- 03:26 AM EDT     0.87 knots Max Flood
Sun -- 06:07 AM EDT     -0.00 knots Slack
Sun -- 06:38 AM EDT     Sunrise
Sun -- 09:31 AM EDT     -1.76 knots Max Ebb
Sun -- 01:21 PM EDT     0.00 knots Slack
Sun -- 03:00 PM EDT     Moonrise
Sun -- 04:11 PM EDT     1.01 knots Max Flood
Sun -- 06:50 PM EDT     -0.00 knots Slack
Sun -- 08:11 PM EDT     Sunset
Sun -- 10:07 PM EDT     -1.70 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.50.10.60.80.80.60.1-0.7-1.3-1.7-1.7-1.5-0.9-0.20.40.810.90.6-0.1-0.9-1.5-1.7-1.6

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
Wind Forecast for Key West, FL (13,3,4,5)
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Ground Weather Radar Station Key West, FL
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weather_mapweather_map weather_map

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 numerous 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.