Friday, August18, 2017 L-36.com


Marine Weather and Tides
Duck Key, 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 7:02AMSunset 7:59PM Friday August 18, 2017 6:03 PM EDT (22:03 UTC) Moonrise 2:38AMMoonset 4:24PM Illumination 12% Phase: Waning Crescent; Moon at 26 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 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- 436 Pm Edt Fri Aug 18 2017
Tonight..East winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Saturday..Northeast to east winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.
Saturday night..East winds 10 to 15 knots. Seas around 2 feet. NEarshore waters a light to moderate chop. Numerous showers and scattered Thunderstorms.
Sunday..East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms.
Sunday night..East to southeast winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Scattered showers and isolated Thunderstorms.
Monday..East winds 15 to 20 knots. Seas 2 to 3 feet. NEarshore waters choppy. Scattered showers and isolated Thunderstorms.
Monday night..East winds 15 to 20 knots. Seas 2 to 3 feet. NEarshore waters choppy. Scattered showers and isolated Thunderstorms.
Tuesday and Tuesday night..East to southeast winds 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.
Wednesday and Wednesday night..East to southeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.

7 Day Forecast for Marine Location Near Duck Key, FL
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location: 24.79, -80.88     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 181921
afdkey
area forecast discussion
national weather service key west fl
321 pm edt Fri aug 18 2017

Discussion
Currently - the combination of a trough over the eastern united
states and day time heating over florida has split the ridge that
had extended across the peninsula. Winds across the keys remain
light and mostly out of the east, with some backing over our deep
gulf side waters. Temperatures are seasonably warm and humid.

Isolated showers and thunderstorms are present across the area
with island cloud lines attempting to form over at least the lower
keys. Meanwhile, a broad tutt cell is centered over cuba and
moving westward.

Forecast - the tutt cell over our area will continue to move
westwards over the next couple of days, bringing the increasingly
wetter eastern side across the keys. After near or slightly below
normal pops tonight, expect well above normal pops beginning
sometime on Saturday, and lingering into Sunday. The surface
atlantic ridge will end near central florida through this period,
maintaining mostly light easterly breezes. Temperatures will be
highly dependent on cloud cover and precipitation over the next
couple of days, but will generally range near normal.

Through the first couple days of the upcoming week, the atlantic
ridge will shift northwards as the trough over the eastern united
states lifts out. Meanwhile tropical storm harvey will be moving
west through the western caribbean. As a result of the tighter
pressure gradient, winds will strengthen, becoming breezy at
times. Expect near or slightly above normal pops and temperatures.

Marine
Winds will remain light and mainly out of the east over the next
couple of days. This ridge will lift northwards over the first few
days of the upcoming week as tropical storm harvey moves
westwards through the western caribbean. As a result, east to
southeast breezes will freshen. Cautions will likely be required
for portions of keys waters through this period, and a period of
advisories cannot be ruled out.

Aviation
Outside of any passing showers thunderstorms,VFR will prevail
through the terminal forecast at eyw & mth. Drier air will filter
across the island chain after 19 03z, which will diminish shower
coverage significantly. Expect winds to remain east to east-
southeast of 5 to 10 knots.

Climate
On this date in keys weather history, in 1956, the record high
temperature of 95 degrees was recorded in key west. This set the
daily record for august 18th for high temperature, a record that
still exists 61 years later. Temperature records in key west date
back to 1872.

Preliminary point temps pops
Key west 82 90 82 90 30 50 60 50
marathon 82 95 81 95 30 50 60 50

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... 11
aviation nowcasts... .Mclovin
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
PKYF1 - Peterson Key, FL 11 mi64 min 92°F
VCAF1 - 8723970 - Vaca Key, FL 13 mi46 min ESE 7 G 12 88°F 92°F1014.3 hPa
LRKF1 - Little Rabbit Key, FL 14 mi124 min 94°F
JKYF1 - Johnson Key, FL 18 mi124 min 92°F
BOBF1 - Bob Allen, FL 19 mi64 min 93°F
MUKF1 - Murray Key, FL 22 mi64 min 93°F
BKYF1 23 mi64 min 96°F
GBTF1 - Garfield Bight, FL 26 mi64 min 95°F
TBYF1 27 mi124 min 96°F
BNKF1 - Butternut Key, FL 28 mi64 min 92°F
LMDF1 - Little Madeira, FL 30 mi64 min 94°F
MLRF1 - Molasses Reef, FL 31 mi64 min ESE 9.9 G 11 86°F 87°F1015.2 hPa (-1.4)
WWEF1 31 mi124 min 88°F
TRRF1 - Taylor River, FL 32 mi64 min 92°F
LRIF1 34 mi64 min 90°F
DKKF1 - Duck Key, FL 34 mi124 min 92°F
TCVF1 - Trout Cove, FL 35 mi124 min 95°F
CWAF1 36 mi124 min 90°F
BWSF1 - Blackwater Sound, FL 36 mi124 min 94°F
LBSF1 - Little Blackwater, FL 38 mi124 min 92°F
LSNF1 - Long Sound, FL 38 mi64 min 93°F
NRRF1 38 mi64 min 88°F
HCEF1 - Highway Creek, FL 40 mi124 min 93°F
SREF1 41 mi64 min 89°F
GBIF1 - Gunboat Island, FL 41 mi64 min 88°F
TPEF1 - Tarpon Bay East, FL 43 mi124 min 87°F
CANF1 - Cane Patch, FL 44 mi124 min 88°F
HREF1 45 mi64 min 86°F
BDVF1 - Broad River, FL 48 mi64 min 85°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, FL10 mi71 minESE 810.00 miFair92°F75°F60%1014.5 hPa

Wind History from MTH (wind in knots)
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Last 24hr4Calm5E7E4N7NE4E4E6E4E6E54SE4E6E8E7E8SE8SE6SE5SE8E8E7
1 day agoE7E7E6E74E5SE6E5E3E5E6E4E4E3NE4SE75E8E7E65E76SE9
2 days agoE4E5E4E3E5E4E6E5E4E4E3E7E3E3SE7SE66SE5E466E86E6

Tide / Current Tables for Conch Key, eastern end, Florida
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Conch Key
Click for Map
Fri -- 03:38 AM EDT     Moonrise
Fri -- 06:09 AM EDT     1.85 feet High Tide
Fri -- 06:59 AM EDT     Sunrise
Fri -- 01:26 PM EDT     0.00 feet Low Tide
Fri -- 05:24 PM EDT     Moonset
Fri -- 07:52 PM EDT     1.10 feet High Tide
Fri -- 07:55 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.60.91.21.51.71.81.81.61.30.90.50.2000.20.40.60.911.110.80.5

Tide / Current Tables for Long Key Viaduct, Florida Current
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Long Key Viaduct
Click for Map
Fri -- 01:11 AM EDT     -1.10 knots Max Ebb
Fri -- 03:38 AM EDT     Moonrise
Fri -- 04:10 AM EDT     0.00 knots Slack
Fri -- 06:44 AM EDT     0.69 knots Max Flood
Fri -- 06:59 AM EDT     Sunrise
Fri -- 09:32 AM EDT     -0.00 knots Slack
Fri -- 01:15 PM EDT     -1.54 knots Max Ebb
Fri -- 04:32 PM EDT     0.00 knots Slack
Fri -- 05:24 PM EDT     Moonset
Fri -- 07:49 PM EDT     1.20 knots Max Flood
Fri -- 07:54 PM EDT     Sunset
Fri -- 10:57 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-1.1-1-0.6-0.10.40.60.70.60.3-0.3-0.9-1.3-1.5-1.5-1.1-0.40.30.91.11.210.6-0

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 (18,4,5,8)
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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.