Thursday, April2, 2020
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Marine Weather and Tides
Stock Island, 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 7:15AMSunset 7:45PM Thursday April 2, 2020 4:13 AM EDT (08:13 UTC) Moonrise 1:08PMMoonset 2:10AM Illumination 68% 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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GMZ044 Expires:202004020900;;433374 Fzus52 Kkey 020221 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 1021 Pm Edt Wed Apr 1 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>044-020900- 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- 1021 Pm Edt Wed Apr 1 2020
Overnight..Northwest winds near 15 knots. Seas 1 to 2 feet, except 2 to 4 feet west of cosgrove shoal light. NEarshore waters a moderate chop.
Thursday..North winds near 15 knots early, becoming northeast and decreasing to near 10 knots. Seas 1 to 2 feet, except 2 to 4 feet west of cosgrove shoal light. NEarshore waters a light to moderate chop.
Thursday night..Northeast winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop.
Friday..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop.
Friday night..Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop.
Saturday..East winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop.
Saturday night..East winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop.
Sunday..East winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers.
Sunday night..East winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy.
Monday..East to southeast winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.
Monday night..East winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.


7 Day Forecast for Marine Location Near Stock Island, FL
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location: 24.57, -81.75     debug


Area Discussion for - Key West, FL
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FXUS62 KKEY 020801 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 401 AM EDT Thu Apr 2 2020

DISCUSSION. A deep, sharp ridge, that extends from the Gulf of Mexico into the northwestern portions of Ontario, is beginning to move in from our west. This is helping to push out a trough along the eastern seaboard that was responsible for yesterday's cold front passage. At the surface a large surface high is taking shape take extends equatorward from the Great Lakes down into the northern Gulf of Mexico. The cold front that went through the region yesterday now lies well to our south across Cuba and the southern Bahamas. A land breeze, evident by infrared satellite and surface observations, is coming off the southern mainland. This land breeze will shift northerly winds to the northeast in its wake.

Outside of these features, the radar is clear of any precipitation. Current observations reveal temperatures in the lower 70s for the Middle and Lower Keys, while hovering near 70 in the Upper Keys. As mentioned earlier, winds are in the process of shifting to the northeast behind the land breeze, which will reach the Lower Keys within the hour.

SHORT TERM (Today through Saturday). Deep layer ridging will traverse eastward over the next several days. Meanwhile, the aforementioned surface high will slowly trek east as well, emerging over the western North Atlantic by late Saturday. The combination of these two features will suppress any precipitation chances in the short term. In addition, northeast winds today will eventually become more easterly by the start of the weekend as the surface high pushes east. Temperatures will briefly hover near normal today before rising back above normal by Friday.

LONG TERM (Saturday night through Wednesday night). Upper level ridge will flatten in response to a broad upper level low moving across the northern tier states. Meanwhile, a weak shortwave, traversing in the southern stream will move quickly across the Gulf States Saturday night through Sunday. A tongue of moisture will accompany this shortwave and will produce some precipitation, though most of it should stay to our north and affect central and northern Florida. Nonetheless, given the trajectory of the shortwave, have left the 10 PoPs as is in the forecast. After the shortwave departs, moisture will linger into Monday and will keep 10 PoPs going. Thereafter, deep layer ridging will return and finish out the remainder of the forecast period with dry conditions. Meanwhile, surface high will slink southeast through the period with surface winds continuing to clock around to the southeast. Expect above normal temperatures with day times highs in the lower to mid 80s and overnight lows in the mid 70s.

MARINE. Winds are clocking around to the northeast in the wake of a land breeze from the southern mainland. Gentle to moderate breezes this morning will slacken to light to gentle by this afternoon. Light to gentle northeast to east breezes will prevail through Friday night. Thereafter, a surface high will emerge over the western Atlantic late Saturday. As this occurs, easterly breezes will freshen into gentle to moderate range. A couple of weak nocturnal surges Sunday and Monday nights could further freshen winds to moderate to occasional fresh breezes, especially over the Florida Straits.

AVIATION. VFR conditions will prevail at the island terminals. With that said, there will be patches of stratocumulus capable of producing periods of MVFR ceilings this morning. Surface winds will start out light to gentle out of the north, gradually slackening and shifting east.

CLIMATE. In 1987, after a high of 65F and low of 56F the previous day (the 1st), the low temperature of 48F at Key West International Airport on the 2nd shattered the cold record for the date. It is the lowest temperature ever recorded in Key West in the month of April (with the next-lowest being 54F in 1891), and the next- latest sub-50F reading ever is 49F on March 04, 1980.

PRELIMINARY POINT TEMPS/POPS. Key West 80 73 82 75 / - - - - Marathon 80 73 83 74 / - - - -

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

Public/Marine/Fire . LIW Aviation/Nowcasts . 11 Data Collection . 11

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 3 mi56 min 73°F 1013.1 hPa
42095 16 mi44 min 78°F2 ft
SMKF1 - Sombrero Key, FL 34 mi34 min NNE 11 G 14 74°F 62°F
VCAF1 - 8723970 - Vaca Key, FL 35 mi56 min N 7 G 11 74°F 80°F1012.1 hPa

Wind History for Key West, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL1 mi81 minN 810.00 miA Few Clouds71°F61°F71%1013.2 hPa
Key West Naval Air Station, FL3 mi81 minNNW 1010.00 miA Few Clouds72°F61°F68%1012.9 hPa

Link to 5 minute data for KEYW

Wind History from EYW (wind in knots)
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1 day agoS8S8S8S7S7S9S9S10S9S7S8SW7SW8W8W7W8W5W6W7W8W9W10
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2 days agoSE9SE10SE11SE8SE8E8E9SE10SE9SE10SE10SE9SE7SE8E9E9E10SE10SE9SE6SE7SE6SE6S7

Tide / Current Tables for Cow Key Channel, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Key West, Florida Current
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Key West
Click for Map
Thu -- 12:34 AM EDT     0.00 knots Slack
Thu -- 03:10 AM EDT     Moonset
Thu -- 03:23 AM EDT     0.78 knots Max Flood
Thu -- 06:25 AM EDT     -0.00 knots Slack
Thu -- 07:17 AM EDT     Sunrise
Thu -- 09:32 AM EDT     -1.19 knots Max Ebb
Thu -- 01:34 PM EDT     0.00 knots Slack
Thu -- 02:08 PM EDT     Moonrise
Thu -- 03:32 PM EDT     0.37 knots Max Flood
Thu -- 05:48 PM EDT     -0.00 knots Slack
Thu -- 07:44 PM EDT     Sunset
Thu -- 09:42 PM EDT     -1.67 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.30.20.60.80.80.60.2-0.3-0.9-1.2-1.2-1-0.7-0.20.10.30.40.2-0.1-0.6-1.2-1.6-1.7-1.5

Weather Map
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wmap_A
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 (4,6,7,8)
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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.