Monday, May20, 2019 L-36.com


Marine Weather and Tides
Key Colony Beach, 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 6:40AMSunset 8:07PM Monday May 20, 2019 10:32 AM EDT (14:32 UTC) Moonrise 8:59PMMoonset 7:07AM 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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GMZ053 Expires:201905201430;;157365 Fzus52 Kkey 200827 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 427 Am Edt Mon May 20 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>075-201430- 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- 427 Am Edt Mon May 20 2019
Today..Northeast to east winds near 10 knots. Seas 1 to 2 feet. Isolated showers.
Tonight..East winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 3 feet. Isolated showers.
Tuesday..East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers.
Tuesday night..East winds 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated showers.
Wednesday..Northeast to east winds 10 to 15 knots, increasing to near 15 knots in the afternoon. Seas 2 to 3 feet. Isolated showers.
Wednesday night..East winds near 20 knots. Seas building to 4 to 6 feet. Scattered showers.
Thursday through Friday night..East winds near 20 knots. Seas 5 to 7 feet. Isolated showers.


7 Day Forecast for Marine Location Near Key Colony Beach, FL
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location: 24.7, -81.1     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 200826
afdkey
area forecast discussion
national weather service key west fl
426 am edt Mon may 20 2019

Discussion
Currently
Under mostly clear skies and light east to southeast winds of 5 to
10 mph, temperatures are hovering around 80 degrees.

Meanwhile, local radars are detecting isolated showers across our
entire area, with the majority of the cells found on the outer
waters of mainland monroe and beyond 40 nm southeast of the upper
keys. On our marine district, winds are east to southeast ranging
from 3 knots at alligator reef light to 10 knots at carysfort reef
light.

Short term (today through Wednesday night)
a weak western atlantic ridge axis extending across north and
central florida today through Wednesday, will be strengthened by
another massive high pressure cell pressing southward down the
eastern seaboard and the florida peninsula by the middle of this
week. Despite large scale subsidence, ample low level moisture and
light winds will provide the opportunity for mesoscale forcing in
the form of cloud line genesis and outflow boundaries triggered
from our neighboring large land masses. With that, isolated 10 to
20 percent pops will be returned. High temperatures will average
near 90 and overnight lows in the upper 70s to near 80 degrees.

Long term (Thursday through Sunday)
the aforementioned (2nd paragraph) high pressure system will
extend across the gulf coast and the sunshine state by late
Friday, before sagging southward and weakening next weekend.

Without any large scale ascent evident, decreasing low level winds
and enough low level moisture will keep mesoscale forcing our
primary precipitation source. Hence, isolated 10 to 20 percent 12
hour pops which are near normal will be retained. Seen no reason
to stray from highs near 90 and overnight lows in the upper 70s to
near 80.

Marine
Outside of any outflow boundaries, heavier cells or possible
waterspouts, light to gentle mainly east winds will prevail on all
keys coastal waters today through Tuesday, before gradually
increasing Tuesday night but especially Wednesday night when an
exercise caution advisory will likely be required for our entire
marine district. Thereafter, typical surges and lulls will occur,
but headlines will be needed on our waters for the balance of the
week.

Aviation
Vfr conditions are expected to prevail at the eyw and mth terminals
through the forecast period. Winds will generally be from the east,
with a few hour period of mid-morning backing to the northeast.

Climate
In 2006, the daily record low temperature of 67 degrees was
recorded in key west. Temperature records date back to 1872.

Preliminary point temps pops
Key west 88 79 88 79 - 20 - 10
marathon 92 81 93 81 20 20 10 10

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Apa
aviation nowcasts... .Wlc
data collection... ... Chesser
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
VCAF1 - 8723970 - Vaca Key, FL 1 mi45 min 82°F 85°F1016.2 hPa
SMKF1 - Sombrero Key, FL 5 mi43 min 82°F 1015.6 hPa (+1.0)70°F
LRKF1 - Little Rabbit Key, FL 24 mi153 min 82°F
PKYF1 - Peterson Key, FL 24 mi93 min 83°F
JKYF1 - Johnson Key, FL 27 mi93 min 82°F
MUKF1 - Murray Key, FL 29 mi93 min 82°F
WRBF1 - Whipray Basin, FL 32 mi93 min NNW 8 82°F
BKYF1 32 mi93 min 82°F
BOBF1 - Bob Allen, FL 32 mi93 min 83°F
GBTF1 - Garfield Bight, FL 36 mi93 min 82°F
TBYF1 37 mi93 min 84°F
WWEF1 38 mi153 min 81°F
KYWF1 - 8724580 - Key West, FL 39 mi45 min 85°F 86°F1016.6 hPa
BNKF1 - Butternut Key, FL 41 mi93 min 83°F
LMDF1 - Little Madeira, FL 41 mi93 min 83°F
CWAF1 42 mi153 min 82°F
LRIF1 42 mi93 min 82°F
TRRF1 - Taylor River, FL 43 mi93 min 88°F
SANF1 - Sand Key, FL 44 mi43 min 82°F 1016.5 hPa (+1.4)69°F
NRRF1 45 mi93 min 82°F
SREF1 45 mi93 min 83°F
DKKF1 - Duck Key, FL 46 mi153 min 83°F
TCVF1 - Trout Cove, FL 46 mi153 min 82°F
GBIF1 - Gunboat Island, FL 47 mi93 min 82°F
BWSF1 - Blackwater Sound, FL 48 mi153 min 83°F

Wind History for Vaca Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Florida Keys - Marathon International Airport, FL4 mi40 minNNE 710.00 miFair87°F71°F59%1016 hPa

Wind History from MTH (wind in knots)
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Last 24hr5E6SE8E8E9E7
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E7E7E6E8E8E7E5E6E5E5E3E4CalmCalmCalmNE4NE5N7
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E9E7E8E6E4E6NE7E7NE8NE9NE12

Tide / Current Tables for Boot Key Harbor, Vaca Key, Florida
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Boot Key Harbor
Click for Map
Mon -- 03:56 AM EDT     0.46 feet Low Tide
Mon -- 06:38 AM EDT     Sunrise
Mon -- 08:07 AM EDT     Moonset
Mon -- 10:09 AM EDT     2.32 feet High Tide
Mon -- 05:20 PM EDT     -0.47 feet Low Tide
Mon -- 08:03 PM EDT     Sunset
Mon -- 09:59 PM EDT     Moonrise
Mon -- 11:47 PM EDT     1.26 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.10.80.50.50.60.91.41.82.22.32.21.91.50.90.3-0.2-0.5-0.4-0.10.30.711.2

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Mon -- 01:53 AM EDT     -0.00 knots Slack
Mon -- 04:49 AM EDT     -1.91 knots Max Ebb
Mon -- 06:38 AM EDT     Sunrise
Mon -- 08:01 AM EDT     0.00 knots Slack
Mon -- 08:07 AM EDT     Moonset
Mon -- 10:27 AM EDT     1.27 knots Max Flood
Mon -- 01:18 PM EDT     -0.00 knots Slack
Mon -- 04:44 PM EDT     -2.36 knots Max Ebb
Mon -- 08:03 PM EDT     Sunset
Mon -- 08:10 PM EDT     0.00 knots Slack
Mon -- 09:59 PM EDT     Moonrise
Mon -- 11:08 PM EDT     1.90 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.70.9-0.1-1.1-1.8-1.9-1.6-0.9-00.81.21.20.90.3-0.6-1.6-2.2-2.3-2-1.3-0.20.91.61.9

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Key West, FL (10,2,3,4)
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Ground Weather Radar Station Key West, FL
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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.