Thursday, April9, 2020
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Marine Weather and Tides
Cudjoe 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 7:09AMSunset 7:48PM Thursday April 9, 2020 12:57 AM EDT (04:57 UTC) Moonrise 8:45PMMoonset 7:28AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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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GMZ032 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- 1008 Pm Edt Wed Apr 8 2020
Overnight..West to northwest winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop.
Thursday..West winds 5 to 10 knots, increasing to 10 to 15 knots late. Seas around 1 foot. NEarshore waters smooth to a light chop, becoming a light to moderate chop.
Thursday night..West winds 10 to 15 knots. Seas building to 1 to 2 feet. NEarshore waters a light to moderate chop.
Friday..West to northwest winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop.
Friday night..Northwest to north winds near 10 knots, becoming northeast to east and decreasing to 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters light chop, becoming smooth to a light chop.
Saturday..East to southeast winds increasing to 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters becoming a light to moderate chop.
Saturday night..East to southeast winds 15 to 20 knots. Seas 1 to 3 feet. NEarshore waters choppy.
Sunday..Southeast winds 15 to 20 knots. Seas 1 to 3 feet. NEarshore waters choppy.
Sunday night..Southeast to south winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy.
Monday..Southeast to south winds decreasing to 10 to 15 knots. Seas subsiding to 1 to 3 feet. NEarshore waters becoming a light to moderate chop. Slight chance of showers.
Monday night..Southeast to south winds near 10 knots. Seas 1 around 1 foot. NEarshore waters a light chop. Isolated showers.


7 Day Forecast for Marine Location Near Cudjoe Key, FL
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location: 24.64, -81.48     debug


Area Discussion for - Key West, FL
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FXUS62 KKEY 090234 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1034 PM EDT Wed Apr 8 2020

DISCUSSION. High pressure aloft and at the surface dominates our weather this evening. A 500 mb high over the northwest Caribbean comes with a flat ridge over the southern Gulf, with the 00z KEY sounding observing a 500 mb height of 5900 meters. Meanwhile, an east- west surface ridge axis is located along the north coast of Cuba. With so much high pressure, the subsidence inversion in the evening sounding was near an uncommonly low 1,300 feet MSL. This barely even gives clouds a chance to form.

The upper ridge will weaken some on Thursday and Friday, but the surface ridge will not go far. Even if the subsidence inversion lifts a few thousand feet, it will still not deepen the mixed layer enough to generate showers. Indeed, Saturday PM is the first time with so much as a 10 PoP in the forecast. Dry season continues. Otherwise, the sunny skies, light winds, and warm air aloft will support well above normal temperatures. High temperatures in the upper 80s should become increasingly common through Saturday.

MARINE. Light westerly flow will prevail through Friday night, thanks to an Atlantic high pressure ridge near the north coast of Cuba. Westerly flow is known for locally accelerating during the late afternoon and early evening around the southern tip of the Florida Peninsula, bringing a surge of 15-knot winds from Florida Bay across the Upper Keys to Carysfort Light. That will be the case on Thursday PM and Friday PM.

Winds will more broadly freshen and veer more southerly Saturday and Saturday night as low pressure deepens across the Mississippi Valley. As a result, a Small Craft Advisory may become necessary for portions of the waters over the weekend. Thereafter, winds will slacken as the aforementioned low pulls away from the region.

AVIATION. Persistent weather will prevail for the next 24 hours, with light west-northwest winds and FEW coverage of fair weather cumulus, if not SKC. The evening KEY sounding showed an uncommonly low subsidence inversion near 1,300 feet MSL, so that will very much limit clouds. Great flying weather for the Keys.

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

Public/Marine/Fire . Haner Aviation/Nowcasts . Haner Data Collection . SDR

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 18 mi57 min NNW 8 G 11 78°F 1015.1 hPa (+0.6)
SMKF1 - Sombrero Key, FL 20 mi37 min NW 4.1 G 5.1 78°F 72°F
VCAF1 - 8723970 - Vaca Key, FL 20 mi57 min NW 5.1 G 6 79°F 84°F1014.9 hPa (+0.8)
42095 30 mi87 min 79°F1 ft
JKYF1 - Johnson Key, FL 42 mi177 min 84°F
MUKF1 - Murray Key, FL 43 mi177 min 81°F
PKYF1 - Peterson Key, FL 43 mi177 min 83°F
BKYF1 48 mi177 min 86°F
WRBF1 - Whipray Basin, FL 49 mi177 min SW 8.9 87°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, FL12 mi64 minNW 610.00 miFair78°F71°F79%1014.9 hPa
Key West International Airport, FL16 mi64 minNW 710.00 miFair78°F73°F85%1015.1 hPa
The Florida Keys - Marathon International Airport, FL24 mi64 minWNW 410.00 miFair78°F71°F79%1014.7 hPa

Link to 5 minute data for KNQX

Wind History from NQX (wind in knots)
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Last 24hrSE5SE3E3S3S5S4SW4CalmCalmCalmN6N7N7N8N8N8N9NW8N7NW6NW5NW5NW7NW6
1 day agoNW9NW10NW9NW8NW4W3W3S4S3SE3Calm4N6NW4SW7SW5NW3S3CalmCalmSE4E3E5E6
2 days agoS7S7SW6SW8SW7SW6W5W5W6NW8NW9N10N9N8N8N9N8N9N8NW9NW7NW7N10NW8

Tide / Current Tables for Gopher Key, Cudjoe Bay, Florida
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Gopher Key
Click for Map
Thu -- 05:11 AM EDT     0.03 feet Low Tide
Thu -- 07:09 AM EDT     Sunrise
Thu -- 08:27 AM EDT     Moonset
Thu -- 10:36 AM EDT     1.79 feet High Tide
Thu -- 06:04 PM EDT     -0.42 feet Low Tide
Thu -- 07:45 PM EDT     Sunset
Thu -- 09:46 PM EDT     Moonrise
Thu -- 11:45 PM EDT     1.28 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.10.80.40.200.10.511.51.71.81.61.30.90.4-0-0.3-0.4-0.30.10.50.91.2

Tide / Current Tables for No Name Key (northeast of), Florida Current
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No Name Key (northeast of)
Click for Map
Thu -- 01:11 AM EDT     -0.00 knots Slack
Thu -- 03:58 AM EDT     -1.28 knots Max Ebb
Thu -- 07:08 AM EDT     Sunrise
Thu -- 07:30 AM EDT     0.00 knots Slack
Thu -- 08:26 AM EDT     Moonset
Thu -- 10:26 AM EDT     0.92 knots Max Flood
Thu -- 01:08 PM EDT     -0.00 knots Slack
Thu -- 04:08 PM EDT     -1.42 knots Max Ebb
Thu -- 07:41 PM EDT     0.00 knots Slack
Thu -- 07:45 PM EDT     Sunset
Thu -- 09:45 PM EDT     Moonrise
Thu -- 10:58 PM EDT     1.18 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.1-0.6-1.1-1.3-1.1-0.8-0.30.30.70.90.90.60.1-0.6-1.2-1.4-1.3-0.9-0.40.20.71.11.2

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 (0,6,7,8)
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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.