Friday, April26, 2019 L-36.com


Marine Weather and Tides
Key West, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:54AMSunset 7:55PM Friday April 26, 2019 3:42 AM EDT (07:42 UTC) Moonrise 12:56AMMoonset 11:56AM Illumination 57% Phase: Waning Gibbous; Moon at 21 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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GMZ075 Expires:201904260830;;493118 Fzus52 Kkey 260227 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 1027 Pm Edt Thu Apr 25 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>075-260830- 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- 1027 Pm Edt Thu Apr 25 2019
Overnight..East to southeast winds near 15 knots, becoming southeast to south and decreasing to 10 to 15 knots. Seas 2 to 4 feet, subsiding to 2 to 3 feet. Isolated showers.
Friday..Southwest to west winds 10 to 15 knots, becoming west to northwest late in the afternoon. Seas 2 to 3 feet. Isolated showers.
Friday night..Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Saturday..Northeast to east winds near 10 knots. Seas 1 to 3 feet. Scattered showers and isolated Thunderstorms.
Saturday night..East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Sunday..East winds 10 knots. Seas 1 to 3 feet. Scattered showers and isolated Thunderstorms.
Sunday night and Monday..East winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Monday night through Tuesday night..East winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers.


7 Day Forecast for Marine Location Near Key West, FL
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location: 24.55, -82.13     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 260229
afdkey
area forecast discussion
national weather service key west fl
1029 pm edt Thu apr 25 2019

Discussion
Water vapor imagery highlights a trough complex sliding east
through the mississippi river valley, with deep convection mostly
confined to the gulf waters adjacent to the coastline. And yet,
deep layer ridging persists over the florida keys, with the upper
level ridge axis nearly atop the island chain. The sea breeze
collisions over cuba were pathetic this afternoon, with only
divergent alto-layers apparent on IR imagery at this time. This
evening's kkey RAOB sampled around an inch of pw, which is near
the tenth percentile for the date. Deep inhibition gives way to
a dearth of moisture, and stair-steps of steep lapse rates and
subsidence inversions. The kbyx radar is echo free and skies are
mostly clear. Temperatures tonight will remain above normal with
gentle to moderate southeast to south breezes bathing the island
chain in atlantic humidity and warmth. Rain chances are nil. The
forecast is on track and needs no adjustments.

Marine
A ridge of high pressure across the florida peninsula will slide
eastward into the western atlantic tonight. A trough of low
pressure will move eastward across the gulf of mexico Friday,
reaching the keys Friday night, then south of the islands
Saturday. A weak pressure pattern will set in Saturday night
through Sunday night, before another ridge of high pressure builds
off the atlantic coast early next week, resulting in freshening
easterly breezes Monday night and Tuesday.

Aviation
Vfr and gentle southeast breezes will prevail at the eyw and mth
terminals tonight. Breezes will become southerly around 12z, then
westerly during the afternoon Friday. Westerly wind gusts will
reach 17 knots at mth in the afternoon.

Preliminary point temps pops
Key west 77 85 74 85 - 10 30 30
marathon 77 88 75 88 - 10 30 30

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Clr
aviation nowcasts... .Clr
data collection... ... Dr
visit us on the web at weather.Gov key
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
42095 13 mi42 min 79°F2 ft
SANF1 - Sand Key, FL 15 mi52 min 78°F 1014.6 hPa (-1.0)72°F
KYWF1 - 8724580 - Key West, FL 17 mi48 min ESE 8.9 G 12 78°F 80°F1014.7 hPa
PLSF1 - Pulaski Shoal Light, FL 35 mi42 min S 12 G 13 78°F 1014.6 hPa (-1.1)
GKYF1 40 mi162 min 79°F

Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL20 mi49 minSSE 1110.00 miFair79°F73°F82%1014.6 hPa
Key West Naval Air Station, FL23 mi49 minSSE 1110.00 miFair79°F73°F82%1014.3 hPa

Wind History from EYW (wind in knots)
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Last 24hrSE11SE10SE13SE11SE10SE9SE12SE10SE10S11S12S9S9SE6SE6E5SE7SE8SE11SE11SE13SE13SE13S11
1 day agoNE5NE3NE3NE4NE3E7E9E10E10E7E7E7E9E5E9E6E7E7E5E5E9SE9SE8SE10
2 days agoE7E5E5E4NE5E6NE9NE10NE10E6E12
G16
E13E12E10E8E9E8E8E8E7E9------

Tide / Current Tables for Sand Key Lighthouse, Sand Key Channel, Florida
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Sand Key Lighthouse
Click for Map
Fri -- 01:54 AM EDT     Moonrise
Fri -- 03:51 AM EDT     0.78 feet High Tide
Fri -- 06:56 AM EDT     Sunrise
Fri -- 08:30 AM EDT     0.61 feet Low Tide
Fri -- 12:55 PM EDT     Moonset
Fri -- 02:31 PM EDT     1.35 feet High Tide
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 07:54 PM EDT     Sunset
Fri -- 10:28 PM EDT     0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.50.70.80.80.80.70.70.60.60.70.811.21.31.31.21.10.90.60.40.20.10.1

Tide / Current Tables for Boca Grande Channel, Florida Current
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Boca Grande Channel
Click for Map
Fri -- 12:21 AM EDT     0.78 knots Max Flood
Fri -- 01:55 AM EDT     Moonrise
Fri -- 04:42 AM EDT     -0.00 knots Slack
Fri -- 06:57 AM EDT     Sunrise
Fri -- 07:49 AM EDT     -0.65 knots Max Ebb
Fri -- 10:33 AM EDT     0.00 knots Slack
Fri -- 12:32 PM EDT     0.44 knots Max Flood
Fri -- 12:56 PM EDT     Moonset
Fri -- 04:07 PM EDT     -0.00 knots Slack
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 07:55 PM EDT     Sunset
Fri -- 07:55 PM EDT     -0.82 knots Max Ebb
Fri -- 10:55 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.70.60.50.2-0.1-0.4-0.6-0.7-0.5-0.20.20.40.40.30.20-0.3-0.6-0.8-0.8-0.7-0.40

Weather Map and Satellite Images
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wmap_A
GOES 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 (3,6,7,8)
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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 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.