Sunday, August20, 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 7:03AMSunset 7:57PM Sunday August 20, 2017 7:37 AM EDT (11:37 UTC) Moonrise 4:44AMMoonset 6:13PM Illumination 3% Phase: Waning Crescent; Moon at 28 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- 421 Am Edt Sun Aug 20 2017
Today..East to southeast winds 10 to 15 knots early, increasing to near 15 knots in the afternoon. Seas 2 to 4 feet, building to 3 to 5 feet. Winds and seas higher in and near numerous showers and scattered Thunderstorms.
Tonight..East to southeast winds 15 to 20 knots, increasing to near 20 knots after midnight. Seas 3 to 5 feet, building to 4 to 7 feet after midnight. Scattered showers and isolated Thunderstorms.
Monday..East winds near 20 knots, decreasing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, subsiding to 4 to 6 feet. Scattered showers and isolated Thunderstorms.
Monday night..East to southeast winds 15 to 20 knots, decreasing to near 15 knots after midnight. Seas 4 to 6 feet, subsiding to 3 to 5 feet. Scattered showers and isolated Thunderstorms.
Tuesday..East winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Tuesday night..East to southeast winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Wednesday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Wednesday night..South winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated Thunderstorms.
Thursday and Thursday night..South winds near 10 knots. Seas 2 to 3 feet. Scattered showers and isolated 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 200754
afdkey
area forecast discussion
national weather service key west fl
354 am edt Sun aug 20 2017

Discussion
Currently
A tropical wave is currently passing over the keys area providing
wide spread showers with embedded thunderstorms. Some of the
earlier thunderstorms were accompanied by wind gusts exceeding 35
to 40 knots. High pressure remains over the atlantic ocean while
the tropical wave moves through the southern edge of the ridge.

At the marine reporting station, winds are out of the east near
10 knots outside of showers and thunderstorms. The island
terminals are reporting 5 to 10 knots from the east.

Forecast
The tropical wave will continue to march westward through this
evening, followed closely by a swath of dry air and subsidence on
the eastern flank of the wave. This dry air will drop rain chances
gradually from east to west this evening and overnight. Have
adjusted rain chances for this, but timing may need to fine tuned
in the afternoon forecast. The atlantic ridge will rebuild across
the florida peninsula overnight and Monday, while the next
tropical wave moves along its southern periphery. Both moisture
and lifting will return especially Monday night and Tuesday as the
wave pushes through the area. Will keep above normal rain chances
(40 percent) for Monday night and through the end of the week as
the atlantic ridge takes control with deep easterly flow and
moisture.

Marine
A wet Sunday with showers and thunderstorms is in store for the
keys coastal waters. A tropical wave is moving across the area and
will begin to exit from east to northwest late today. Expect a few
thunderstorms will produce winds at least to 30 to 35 knots, so
keep monitoring the marine band if planning a day on the water.

Dry air will move in on the heels of the wave, but the atlantic
high pressure will rebuild and freshen breezes Sunday night and
Monday. A small craft advisory is likely for the florida straits
tonight and Monday. A cautionary statement will likely be
required for the rest of the keys coastal waters. Thereafter, the
atlantic ridge will provide peaks and lulls in gentle to moderate
breezes through the end of the week.

Aviation
Vfr conditions will prevail at eyw and mth through at least sunrise.

Ifr conditions are likely at eyw and mth late this morning and this
afternoon. Sustained northeast winds of 10 to 15 knots from just off
the surface to about 3,000 feet will veer to east to southeast and
increase to 15 to 20 knots this evening.

Climate
On this date in florida keys weather history, in 1963, 2.06 inches
of rain fell at key west international airport. This set the daily
record for maximum rainfall measured in key west on august 20th, a
record which still stands 54 years later. Rainfall records at key
west date back to 1871.

Preliminary point temps pops
Key west 89 80 91 81 70 30 20 40
marathon 91 80 93 81 70 20 20 40

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Bwc
aviation nowcasts... .Bs
data collection... ... Dr
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 ENE 7 G 9.9 84°F 89°F1013.8 hPa
PKYF1 - Peterson Key, FL 24 mi158 min 89°F
MUKF1 - Murray Key, FL 29 mi158 min 88°F
BOBF1 - Bob Allen, FL 32 mi158 min 86°F
BKYF1 32 mi158 min 86°F
GBTF1 - Garfield Bight, FL 36 mi158 min 87°F
TBYF1 37 mi158 min 90°F
KYWF1 - 8724580 - Key West, FL 39 mi50 min ENE 1.9 G 6 89°F1014 hPa
LMDF1 - Little Madeira, FL 41 mi158 min 90°F
BNKF1 - Butternut Key, FL 41 mi158 min 88°F
LRIF1 42 mi158 min 86°F
TRRF1 - Taylor River, FL 43 mi158 min 88°F
SANF1 - Sand Key, FL 44 mi48 min ESE 8 G 11 84°F 1014.8 hPa (+1.0)74°F
NRRF1 45 mi158 min 85°F
SREF1 45 mi158 min 88°F
GBIF1 - Gunboat Island, FL 47 mi158 min 87°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 mi45 minENE 610.00 miMostly Cloudy84°F78°F82%1014.1 hPa

Wind History from MTH (wind in knots)
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Last 24hrE7E6NE8NE8NE8NE9NE8NE9E8E9E8E8E10E9
G16
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1 day agoSE4E6E8E7E8SE8SE6SE5SE8E8E7E75E4E6E7E6E4NE5E7E76E4E4
2 days agoE3NE4SE75E8E7E65E76SE94Calm5E7E4N7NE4E4E6E4E6E54

Tide / Current Tables for Boot Key Harbor, Vaca Key, Florida
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Boot Key Harbor
Click for Map
Sun -- 01:40 AM EDT     0.56 feet Low Tide
Sun -- 05:44 AM EDT     Moonrise
Sun -- 07:00 AM EDT     Sunrise
Sun -- 08:17 AM EDT     2.57 feet High Tide
Sun -- 03:04 PM EDT     -0.10 feet Low Tide
Sun -- 07:13 PM EDT     Moonset
Sun -- 07:54 PM EDT     Sunset
Sun -- 09:33 PM EDT     1.62 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.60.60.81.21.62.12.42.62.52.21.71.10.50.1-0.100.30.71.11.41.61.61.4

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Sun -- 02:45 AM EDT     -2.06 knots Max Ebb
Sun -- 05:44 AM EDT     Moonrise
Sun -- 05:49 AM EDT     0.00 knots Slack
Sun -- 07:01 AM EDT     Sunrise
Sun -- 08:43 AM EDT     1.57 knots Max Flood
Sun -- 11:26 AM EDT     -0.00 knots Slack
Sun -- 02:52 PM EDT     -2.61 knots Max Ebb
Sun -- 06:10 PM EDT     0.00 knots Slack
Sun -- 07:13 PM EDT     Moonset
Sun -- 07:54 PM EDT     Sunset
Sun -- 09:22 PM EDT     2.12 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-1.3-1.9-2-1.7-0.80.211.51.61.20.5-0.7-1.7-2.4-2.6-2.3-1.4-0.20.91.72.121.5

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 (7,2,3,4)
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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.