Thursday, August22, 2019 L-36.com


Marine Weather and Tides
Key Colony Beach, FL

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:03AMSunset 7:56PM Thursday August 22, 2019 2:20 PM EDT (18:20 UTC) Moonrise 11:25PMMoonset 11:55AM Illumination 54% Phase: Third Quarter Moon; Moon at 22 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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GMZ043 Expires:201908222030;;036221 Fzus52 Kkey 221418 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 1018 Am Edt Thu Aug 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. Gmz042>044-222030- 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- 1018 Am Edt Thu Aug 22 2019
This afternoon..North to northeast winds 5 to 10 knots, becoming northeast. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Scattered showers and Thunderstorms.
Tonight..Northeast to east winds near 10 knots. Seas around 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Friday..Variable winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Scattered showers and Thunderstorms.
Friday night..Southeast winds near 10 knots. Seas around 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Saturday..South to southwest winds near 10 knots. Seas around 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Saturday night..South winds near 10 knots. Seas around 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Sunday..South to southwest winds near 10 knots. Seas around 2 feet. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Sunday night through Monday night..Mainly south winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Scattered showers and Thunderstorms.


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 221506
afdkey
area forecast discussion
national weather service key west fl
1106 am edt Thu aug 22 2019

Short term
The 12z key and mfl soundings respectively showed pw values of
2.15" and 2.30". The mfl value is well above the 90th percentile
moving average on the sounding climatology, meaning the air mass
is very moist. For being such a moist air mass, radar imagery
shows the keys somewhat surprisingly void of much convection. The
experimental 12z caribbean hrrr shows little change in the
convective coverage or pattern through today. At first blush, a
reduction in rain chances today and this evening would be
justified. Nonetheless, am disinclined to lower pops for today
just because of the possibility of cloud line development along
the island chain given a northeast wind this afternoon that will
blow favorably parallel to the islands. Already, visible satellite
imagery shows a segmented cloud line developing over the upper
keys.

Marine
Light to gentle northeasterly winds will prevail this afternoon
here on the west side of a low pressure trough over the central
bahamas. The trough will move into the eastern straits on Friday
and lift off to our north this weekend, bringing an incremental
turn to gentle and occasionally moderate southerly breezes over
the course of Friday and Friday night. No adverse effects on
winds and seas are expected through this weekend and beyond over
the keys waters, stemming from the low pressure trough that nhc
is monitoring over the bahamas.

The main risk to mariners will come from locally gusty winds in
the vicinity of showers and thunderstorms. Shower and
thunderstorm coverage will run above the seasonal norm through
Saturday.

Aviation
Despite the usual unstable environment and limited inhibition,
activity has trended downwards through the morning hours. With
that said, the local weather pattern is favorable for a chance for
shower and thunderstorm development near the island terminals, both
from island cloud line formation early, though time is running
short, and later activity migrating in from the mainland. Any shower
or thunderstorm will be capable of producing brief MVFR ifr
conditions. Surface winds will be light out of the northeast,
turning north to northeast.

Climate
In 1947, the daily record low temperature of 72 degrees was last
recorded in key west. Temperature records date back to 1872.

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Haner
aviation nowcasts... .11
data collection... ... Bt
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 mi50 min 84°F 89°F1016.5 hPa
SMKF1 - Sombrero Key, FL 5 mi30 min ENE 4.1 G 5.1 84°F 1016.7 hPa75°F
LONF1 - Long Key, FL 16 mi30 min 85°F 1015.4 hPa76°F
PKYF1 - Peterson Key, FL 24 mi140 min 87°F
LRKF1 - Little Rabbit Key, FL 24 mi140 min 87°F
JKYF1 - Johnson Key, FL 27 mi80 min 89°F
MUKF1 - Murray Key, FL 29 mi80 min 90°F
BKYF1 32 mi80 min 89°F
WRBF1 - Whipray Basin, FL 32 mi80 min N 1.9 88°F
BOBF1 - Bob Allen, FL 32 mi80 min 89°F
GBTF1 - Garfield Bight, FL 36 mi80 min 87°F
TBYF1 37 mi140 min 86°F
KYWF1 - 8724580 - Key West, FL 39 mi56 min 88°F 90°F1016.9 hPa
LMDF1 - Little Madeira, FL 41 mi80 min 88°F
BNKF1 - Butternut Key, FL 41 mi80 min 87°F
LRIF1 42 mi80 min 87°F
CWAF1 42 mi140 min 87°F
TRRF1 - Taylor River, FL 43 mi140 min 86°F
SANF1 - Sand Key, FL 44 mi30 min N 6 G 8 84°F 1015.7 hPa76°F
NRRF1 45 mi140 min 84°F
SREF1 45 mi140 min 87°F
DKKF1 - Duck Key, FL 46 mi140 min 86°F
TCVF1 - Trout Cove, FL 46 mi140 min 87°F
GBIF1 - Gunboat Island, FL 47 mi80 min 85°F
JBYF1 47 mi80 min 87°F
BWSF1 - Blackwater Sound, FL 48 mi140 min 86°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 mi27 minN 610.00 miFair88°F73°F61%1016 hPa

Link to 5 minute data for KMTH

Wind History from MTH (wind in knots)
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Last 24hrS6SE4SE655E6E6E7NE7E6E6E4NE6E7CalmCalm--Calm3N7NE8NE86N6
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2 days agoSE8SE8SE8E6SE4SE10E7E7E5E8E8SE9
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Tide / Current Tables for Boot Key Harbor, Vaca Key, Florida (2)
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Boot Key Harbor
Click for Map
Thu -- 01:28 AM EDT     1.94 feet High Tide
Thu -- 07:01 AM EDT     Sunrise
Thu -- 08:21 AM EDT     0.38 feet Low Tide
Thu -- 12:55 PM EDT     Moonset
Thu -- 02:15 PM EDT     1.51 feet High Tide
Thu -- 07:52 PM EDT     Sunset
Thu -- 07:54 PM EDT     0.54 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.71.91.91.81.51.10.80.50.40.40.60.91.21.41.51.51.31.10.80.60.50.70.91.3

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Thu -- 01:28 AM EDT     1.00 knots Max Flood
Thu -- 04:15 AM EDT     -0.00 knots Slack
Thu -- 07:01 AM EDT     Sunrise
Thu -- 07:58 AM EDT     -1.64 knots Max Ebb
Thu -- 11:31 AM EDT     0.00 knots Slack
Thu -- 12:55 PM EDT     Moonset
Thu -- 02:07 PM EDT     1.20 knots Max Flood
Thu -- 05:37 PM EDT     -0.00 knots Slack
Thu -- 07:52 PM EDT     Sunset
Thu -- 08:39 PM EDT     -1.23 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.610.90.60.1-0.4-1-1.5-1.6-1.4-1-0.40.30.91.21.10.70.3-0.2-0.8-1.2-1.2-1-0.6

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (14,3,4,5)
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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.