Wednesday, January23, 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 7:10AMSunset 6:07PM Wednesday January 23, 2019 4:06 AM EST (09:06 UTC) Moonrise 9:02PMMoonset 9:16AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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:201901230930;;779643 Fzus52 Kkey 230316 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 1016 Pm Est Tue Jan 22 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>075-230930- 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- 1016 Pm Est Tue Jan 22 2019
.small craft advisory in effect...
Overnight..East to southeast winds near 25 knots, with frequent gusts near 30 knots. Seas 9 to 11 feet. Isolated showers.
Wednesday..East to southeast winds 20 to 25 knots. Seas 7 to 10 feet. Isolated showers.
Wednesday night..Southeast to south winds near 20 knots. Seas subsiding to 5 to 8 feet. Scattered showers.
Thursday..South winds 15 to 20 knots, becoming southwest to west and decreasing to 10 to 15 knots. Seas 3 to 6 feet, subsiding to 3 to 4 feet in the afternoon. Widespread showers and scattered Thunderstorms.
Thursday night..Northwest winds near 15 knots. Seas 3 to 5 feet. Numerous showers and isolated Thunderstorms.
Friday..North winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers.
Friday night through Sunday..Northeast winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers.
Sunday night..Northeast to east winds 15 to 20 knots. Seas 4 to 6 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 230242
afdkey
area forecast discussion
national weather service key west fl
942 pm est Tue jan 22 2019

Discussion
Windy and mild conditions prevail across the florida keys on this
Tuesday evening. Kbyx radar shows a few light showers or sprinkles
moving rapidly to the west-northwest across the straits of
florida, while infrared satellite imagery depicts a mixture of
low-level stratocumulus and high-level cirrus overhead.

Temperatures are slowly falling through the 70s, and winds on land
are from the east around 20 mph with frequent higher gusts.

Surface analysis depicts a 1039 mb high centered off the north
carolina coast, with a cold front extending from the upper midwest
into east south texas. The keys lie within a tight pressure
gradient to the south of the surface high. Aloft, deep ridging is
centered over the caribbean sea and extends northward along the
east coast. The 00z key west sounding changed little from the
previous sounding, showing a very strong inversion based near 5000
feet and low pw of only 0.80 inches.

Overnight, expect partly to mostly cloudy skies to continue, along
with windy conditions. A few of the showers over the straits have
moved close to the island chain before dissipating recently, so
have updated the public forecast to mention slight chance of
showers through the remainder of the night instead of waiting
until after midnight. No other forecast changes are planned for
this evening.

The consensus of latest model guidance continues to show the next
cold front passing through the keys Thursday evening, although
the GFS is a few hours faster than that. The existing wet forecast
with a chance of thunderstorms for Thursday into Thursday night
appears to be on track. Forecast uncertainty increases greatly by
the weekend, with varying model solutions regarding the
interaction of the stalled front nearby or to our south and
shortwaves rippling through the subtropical jet stream.

Marine
Strong east winds have continued this evening across the keys
coastal waters, with cman and weatherflow stations reporting
sustained wind speeds of 20 to 25 knots and peak gusts around 30
knots. Small craft advisories remain posted for all waters, and
advisory conditions are expected to persist area-wide through at
least Wednesday morning. Mariners should also be ALERT for large
seas of 8 to 11 feet across the straits of florida and the deep
waters of the southeastern gulf of mexico. No significant changes
are planned for the late evening forecast issuance.

Aviation
Vfr conditions with gusty east winds will continue overnight at
the eyw and mth terminals. Frequent stratocumulus ceilings around
5000 feet will persist, but only a few light showers or sprinkles
will be possible.

Key watches warnings advisories
Fl... None.

Gm... Small craft advisory for gmz031>035-042>044-052>055-072>075.

Public marine aviation... Jacobson
data collection... ... ... .Dr
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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 mi49 min WSW 9.9 G 19 72°F 68°F1022 hPa
SMKF1 - Sombrero Key, FL 5 mi77 min 73°F 1021.1 hPa (-1.1)62°F
LONF1 - Long Key, FL 16 mi67 min ESE 20 G 22 71°F 67°F1022.2 hPa (-1.1)61°F
PKYF1 - Peterson Key, FL 24 mi67 min 67°F
JKYF1 - Johnson Key, FL 27 mi67 min 67°F
BKYF1 32 mi67 min 65°F
BOBF1 - Bob Allen, FL 32 mi67 min 67°F
GBTF1 - Garfield Bight, FL 36 mi67 min 66°F
TBYF1 37 mi67 min 67°F
WWEF1 38 mi127 min 66°F
KYWF1 - 8724580 - Key West, FL 39 mi49 min E 12 G 19
BNKF1 - Butternut Key, FL 41 mi67 min 66°F
LMDF1 - Little Madeira, FL 41 mi67 min 66°F
CWAF1 42 mi127 min 65°F
LRIF1 42 mi67 min 66°F
TRRF1 - Taylor River, FL 43 mi67 min 73°F
MLRF1 - Molasses Reef, FL 44 mi67 min ESE 26 G 28 73°F 74°F1022.6 hPa (-1.5)
SANF1 - Sand Key, FL 44 mi77 min 73°F 1021.2 hPa (-1.1)64°F
NRRF1 45 mi67 min 67°F
SREF1 45 mi67 min 66°F
GBIF1 - Gunboat Island, FL 47 mi67 min 66°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 mi74 minESE 13 G 2610.00 miOvercast74°F60°F62%1021.9 hPa

Wind History from MTH (wind in knots)
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1 day agoN14
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N9NE10NE11NE9NE10NE10N8N8N7N6N6N6N6NE4N9NE12NE12NE12NE12NE12NE10
2 days agoSW8SW9
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Tide / Current Tables for Boot Key Harbor, Vaca Key, Florida
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Boot Key Harbor
Click for Map
Wed -- 04:33 AM EST     -0.63 feet Low Tide
Wed -- 07:09 AM EST     Sunrise
Wed -- 09:15 AM EST     Moonset
Wed -- 10:52 AM EST     1.31 feet High Tide
Wed -- 04:09 PM EST     -0.02 feet Low Tide
Wed -- 06:02 PM EST     Sunset
Wed -- 09:01 PM EST     Moonrise
Wed -- 10:36 PM EST     2.11 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.610.3-0.3-0.6-0.6-0.40.10.50.91.21.31.20.90.50.1-00.10.40.91.41.82.12.1

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Wed -- 12:55 AM EST     -0.00 knots Slack
Wed -- 04:15 AM EST     -2.75 knots Max Ebb
Wed -- 07:09 AM EST     Sunrise
Wed -- 07:38 AM EST     0.00 knots Slack
Wed -- 09:15 AM EST     Moonset
Wed -- 10:32 AM EST     2.24 knots Max Flood
Wed -- 01:52 PM EST     -0.00 knots Slack
Wed -- 04:52 PM EST     -2.30 knots Max Ebb
Wed -- 06:03 PM EST     Sunset
Wed -- 08:07 PM EST     0.00 knots Slack
Wed -- 09:02 PM EST     Moonrise
Wed -- 10:45 PM EST     1.75 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.9-0.1-1.3-2.3-2.7-2.6-1.9-0.80.51.62.22.21.81-0.2-1.3-2.1-2.3-2-1.2-0.10.91.61.7

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 (4,6,7,8)
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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.