Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Key Colony Beach, FL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:54AMSunset 7:55PM Wednesday April 25, 2018 7:50 PM EDT (23:50 UTC) Moonrise 2:56PMMoonset 3:08AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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- 431 Pm Edt Wed Apr 25 2018
Tonight..Variable winds near 10 knots, becoming north. Seas 1 to 3 feet.
Thursday..East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers.
Thursday night..East to southeast winds 5 to 10 knots, becoming south to southwest late. Seas 1 to 2 feet. Isolated showers.
Friday..Southwest to west winds 5 to 10 knots. Seas 1 to 2 feet. Scattered showers.
Friday night..West winds near 10 knots. Seas 1 to 2 feet. Scattered showers and isolated Thunderstorms.
Saturday..Northwest to north winds near 10 knots. Seas 1 to 3 feet. Scattered showers.
Saturday night..North winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
Sunday..Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
Sunday night..Northeast to east winds 10 to 15 knots, increasing to 15 to 20 knots late. Seas 2 to 3 feet, building to 3 to 5 feet. Isolated showers.
Monday..Northeast to east winds 20 to 25 knots. Seas 4 to 6 feet, building to 5 to 8 feet in the afternoon. Isolated showers.
Monday night..East winds 20 to 25 knots. Seas 6 to 10 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 251924
afdkey
area forecast discussion
national weather service key west fl
324 pm edt Wed apr 25 2018

Discussion
Currently
Light northerly flow and patchy cloud cover are present, with a
hint of a cloud line developing near big pine key and the middle
keys. Kbyx detects only chaff surrounding the florida keys.

Current temperatures are in the upper 70s to low 80s. Dew points
are in the mid 60s.

Forecast
In the short term, decreasing cloud cover with winds becoming
calm overnight may lead to a radiational cooling event, though
warm nearshore waters in the upper 70s to low 80s will prevent our
temperatures from dropping to the dew points (forecasted to be in
the low 60s). In general, expect a low near 70, though certain
spots in the upper keys and big pine key could see upper 60s. If
the winds fail to go calm - expect low to middle 70s.

A longwave trough will stay planted in the eastern conus, as a
series of upper level disturbances dig into the southeast and lift
to the northeast thereafter. Thereafter, the parent vortex in the
great lakes region shifts the complex to new england late
weekend, and into the northwestern atlantic early next week. A
longwave ridge will then set up across the eastern CONUS as a new
trough slides through the upper midwest midweek. Large differences
currently exist between gfs ECMWF as early as tomorrow night, as
it all depends on the eventual northward drift of the stalled
boundary currently south of the keys. ECMWF is quite rain-
optimistic at this point, and the GFS is very dry - which is the
opposite of the normal bias of each. As a result, had to re-
introduce showers into the forecast beginning tomorrow night, and
adjust the scattered wording this weekend. Because of the high
differences, confidence is lower than average of the eventual
pattern - stay tuned.

Marine
No watches, warnings, or advisories are in effect for the waters
surrounding the florida keys. A weak pressure gradient will
prevail for the balance of this week and into the weekend before a
large and strengthening area of high pressure gradually builds
into our region from the north late this weekend.

Aviation
Vfr and light breezes will prevail at the eyw and mth terminals
through the evening.

Climate
April 25th, on this date in key west climate history, in 1991, the
daily record high temperature of 90f was recorded. The high
temperature so far today is 83f. Temperature records in key west
date back to 1872.

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Mclovin
aviation nowcasts... .Clr
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 mi51 min W 4.1 G 8.9 78°F 85°F1012.8 hPa (-0.6)
SMKF1 - Sombrero Key, FL 5 mi61 min WNW 6 G 8.9 77°F 1012.7 hPa (-0.7)66°F
42078 16 mi51 min 82°F1 ft
LONF1 - Long Key, FL 16 mi51 min NNW 7 G 8 77°F 85°F1013 hPa (-0.5)65°F
PKYF1 - Peterson Key, FL 24 mi111 min 85°F
LRKF1 - Little Rabbit Key, FL 24 mi171 min 86°F
JKYF1 - Johnson Key, FL 27 mi171 min 86°F
WRBF1 - Whipray Basin, FL 32 mi171 min SSW 13 89°F
BKYF1 32 mi111 min 86°F
BOBF1 - Bob Allen, FL 32 mi111 min 88°F
GBTF1 - Garfield Bight, FL 36 mi111 min 86°F
TBYF1 37 mi111 min 87°F
WWEF1 38 mi171 min 84°F
KYWF1 - 8724580 - Key West, FL 39 mi51 min NW 7 G 8.9
BNKF1 - Butternut Key, FL 41 mi111 min 85°F
LMDF1 - Little Madeira, FL 41 mi111 min 85°F
LRIF1 42 mi111 min 85°F
CWAF1 42 mi171 min 84°F
TRRF1 - Taylor River, FL 43 mi111 min 88°F
SANF1 - Sand Key, FL 44 mi61 min 76°F 1013.4 hPa (-0.8)65°F
MLRF1 - Molasses Reef, FL 44 mi111 min WSW 9.9 G 12 78°F 79°F1013.2 hPa (-1.1)
SREF1 45 mi111 min 84°F
NRRF1 45 mi111 min 86°F
DKKF1 - Duck Key, FL 46 mi171 min 84°F
TCVF1 - Trout Cove, FL 46 mi171 min 87°F
GBIF1 - Gunboat Island, FL 47 mi111 min 84°F
BWSF1 - Blackwater Sound, FL 48 mi171 min 87°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 mi58 minW 710.00 miA Few Clouds80°F64°F60%1013.1 hPa

Wind History from MTH (wind in knots)
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Last 24hrW9W7NW6NW6W5SW8W6W7NW9NW8NW9N8N7NE8NE9N7N7N5N5N6W6NW9NW6W7
1 day agoSE6S6--S5S4S6S3S4S3SW3S3CalmSW4SW4S6SW64SW6SW6SW6W11SW7W10W7
2 days agoE7E9
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G14
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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 -- 12:08 AM EDT     -0.04 feet Low Tide
Wed -- 04:08 AM EDT     Moonset
Wed -- 06:53 AM EDT     Sunrise
Wed -- 06:56 AM EDT     1.38 feet High Tide
Wed -- 12:16 PM EDT     0.35 feet Low Tide
Wed -- 03:55 PM EDT     Moonrise
Wed -- 06:40 PM EDT     1.66 feet High Tide
Wed -- 07:51 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-000.30.60.91.21.31.41.31.10.80.50.40.40.60.91.21.51.61.71.51.30.90.4

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Wed -- 12:15 AM EDT     -1.86 knots Max Ebb
Wed -- 03:30 AM EDT     0.00 knots Slack
Wed -- 04:08 AM EDT     Moonset
Wed -- 06:50 AM EDT     1.45 knots Max Flood
Wed -- 06:53 AM EDT     Sunrise
Wed -- 09:33 AM EDT     -0.00 knots Slack
Wed -- 12:53 PM EDT     -1.84 knots Max Ebb
Wed -- 03:56 PM EDT     Moonrise
Wed -- 04:01 PM EDT     0.00 knots Slack
Wed -- 07:15 PM EDT     1.41 knots Max Flood
Wed -- 07:51 PM EDT     Sunset
Wed -- 09:51 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.8-1.8-1.3-0.40.411.41.41.20.5-0.4-1.2-1.7-1.8-1.6-0.9-00.71.21.41.30.8-0.1-1.1

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Key West, FL (19,4,5,8)
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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.