Monday, October23, 2017 L-36.com


Marine Weather and Tides
Key Colony Beach, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:28AMSunset 6:54PM Monday October 23, 2017 2:06 AM EDT (06:06 UTC) Moonrise 9:41AMMoonset 8:51PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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 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- 1029 Pm Edt Sun Oct 22 2017
.small craft advisory in effect...
Overnight..Southeast winds near 20 knots. Seas 5 to 7 feet. Scattered showers and isolated Thunderstorms.
Monday..Southeast winds 15 to 20 knots, decreasing to around 15 knots. Seas 4 to 7 feet subsiding to 3 to 5 feet. Scattered showers and isolated Thunderstorms.
Monday night..Southeast to south winds 10 to 15 knots. Seas 3 to 5 feet, subsiding to 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Tuesday..Southwest to west winds 5 to 10 knots. Seas 1 to 3 feet. Scattered showers and isolated Thunderstorms.
Tuesday night..Winds becoming northwest to north and increasing to near 20 knots. Seas 2 to 3 feet, building to 4 to 6 feet. Scattered showers and isolated Thunderstorms.
Wednesday..North winds near 20 knots. Seas 4 to 6 feet, building to 5 to 8 feet in the afternoon. Scattered showers and isolated Thunderstorms.
Wednesday night..North winds near 20 knots. Seas 5 to 7 feet. Isolated showers.
Thursday and Thursday night..Northeast winds near 15 knots. Seas 4 to 6 feet. Isolated showers.
Friday..East winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers.
Friday night..East to southeast winds 15 to 20 knots. Seas 4 to 6 feet. Isolated 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 230238
afdkey
area forecast discussion
national weather service key west fl
1038 pm edt Sun oct 22 2017

Discussion
Upper level ridging over the northwestern caribbean extends over
the florida peninsula, with surface high pressure offshore the mid
atlantic and new england. Southeast winds on the evening sounding
were 15 knots or greater from 1k to 17k feet. Since last evening,
lower tropospheric flow has remained decidedly more anticyclonic
with convergent bands and cloud streets much more benign. Indeed
earlier scattered showers near the upper keys have diminished with
only isolated cells noted in the coastal waters.

Speaking of the evening sounding, a dry layer was generally from
850-500 mb matching well with this afternoon's GFS prog, just
perhaps a tad more moist in the mid levels. Little change in
mid-level stability is expected overnight with gradual thinning
of the deep southeast wind layer from above. With just modest
steepening of lapse rates over the straits overnight, scattered showers
are expected to resume during the early morning hours. While a
lull in the spotty rainfall is expected through the remainder of
the evening, no change to the lower chance pops is planned at this
time.

Marine
Small craft advisories will continue overnight for hawk channel
and the straits, with exercise caution headlines elsewhere. A
slight slackening of the breezes is expected Monday, with the next
possibility for near-20 knot breezes expected after a cold front
passes through the coastal waters Tuesday night or early
Wednesday.

Aviation
Vfr and moderate east to southeast breezes will prevail at the eyw
and mth terminals overnight. Rain chance are slim, but should be
focused around sunrise at both terminals.

Climate
Season to date, key west has observed an average temperature of
83.9f, ranking as the 5th warmest fall on record through october
21st, with 2007 holding on to the top spot at 84.6f. The fall of
2007 would go on to finish as the warmest ever observed in key west
with an average temperature of 82.2f. Temperature records in key
west date back to 1872.

Key watches warnings advisories
Fl... None.

Gm... Small craft advisory for gmz042>044-052>055-072>075.

Public marine fire... Jr
aviation nowcasts... .Clr
data collection... ... Chesser
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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 ESE 8 G 14 82°F 83°F1017 hPa
PKYF1 - Peterson Key, FL 24 mi127 min 82°F
LRKF1 - Little Rabbit Key, FL 24 mi187 min 82°F
JKYF1 - Johnson Key, FL 27 mi187 min 84°F
BOBF1 - Bob Allen, FL 32 mi127 min 82°F
BKYF1 32 mi127 min 82°F
GBTF1 - Garfield Bight, FL 36 mi127 min 84°F
TBYF1 37 mi127 min 84°F
WWEF1 38 mi187 min 82°F
KYWF1 - 8724580 - Key West, FL 39 mi49 min E 9.9 G 14 82°F 83°F1016.7 hPa
LMDF1 - Little Madeira, FL 41 mi127 min 83°F
BNKF1 - Butternut Key, FL 41 mi127 min 82°F
LRIF1 42 mi127 min 83°F
CWAF1 42 mi187 min 83°F
TRRF1 - Taylor River, FL 43 mi127 min 83°F
SANF1 - Sand Key, FL 44 mi77 min 83°F 1017.6 hPa (+0.0)73°F
MLRF1 - Molasses Reef, FL 44 mi67 min SE 16 G 19 82°F 83°F1018 hPa (+0.0)
NRRF1 45 mi127 min 83°F
SREF1 45 mi127 min 83°F
DKKF1 - Duck Key, FL 46 mi187 min 82°F
GBIF1 - Gunboat Island, FL 47 mi127 min 82°F
BWSF1 - Blackwater Sound, FL 48 mi187 min 82°F

Wind History for Vaca Key, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Florida Keys - Marathon International Airport, FL4 mi74 minESE 12 G 1810.00 miFair82°F73°F74%1017.1 hPa

Wind History from MTH (wind in knots)
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Last 24hrE11
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1 day agoE12
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2 days agoNE9NE9NE9NE8NE10NE10NE10NE10E10NE12E15
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Tide / Current Tables for Boot Key Harbor, Vaca Key, Florida
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Boot Key Harbor
Click for Map
Mon -- 05:58 AM EDT     0.36 feet Low Tide
Mon -- 07:26 AM EDT     Sunrise
Mon -- 10:40 AM EDT     Moonrise
Mon -- 11:59 AM EDT     1.83 feet High Tide
Mon -- 05:24 PM EDT     1.02 feet Low Tide
Mon -- 06:50 PM EDT     Sunset
Mon -- 09:51 PM EDT     Moonset
Mon -- 11:31 PM EDT     2.43 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.421.61.20.70.50.40.50.81.11.51.71.81.81.61.31.2111.21.51.92.22.4

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Mon -- 01:57 AM EDT     -0.00 knots Slack
Mon -- 05:22 AM EDT     -2.03 knots Max Ebb
Mon -- 07:26 AM EDT     Sunrise
Mon -- 08:49 AM EDT     0.00 knots Slack
Mon -- 10:40 AM EDT     Moonrise
Mon -- 11:31 AM EDT     1.61 knots Max Flood
Mon -- 03:02 PM EDT     -0.00 knots Slack
Mon -- 05:57 PM EDT     -1.60 knots Max Ebb
Mon -- 06:50 PM EDT     Sunset
Mon -- 09:20 PM EDT     0.00 knots Slack
Mon -- 09:51 PM EDT     Moonset
Mon -- 11:36 PM EDT     1.05 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.6-0-0.8-1.6-2-1.9-1.5-0.70.211.51.61.20.70-0.8-1.4-1.6-1.4-0.9-0.30.51

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Key West, FL (2,6,7,8)
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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.