Monday, April24, 2017 L-36.com


Marine Weather and Tides
Stock Island, FL

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:55AMSunset 7:54PM Monday April 24, 2017 9:17 AM EDT (13:17 UTC) Moonrise 4:42AMMoonset 5:11PM 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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GMZ044 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- 451 Am Edt Mon Apr 24 2017
.small craft should exercise caution late this afternoon...
Today..West to northwest winds near 15 knots...increasing to 15 to 20 knots late this afternoon. Seas 1 to 3 feet. NEarshore waters a moderate chop...becoming choppy late. Isolated showers... Mainly this afternoon.
Tonight..West to northwest winds 15 to 20 knots...decreasing to near 15 knots after midnight. Seas 1 to 3 feet. NEarshore waters choppy...becoming a moderate chop after midnight. Isolated showers...mainly in the evening.
Tuesday..West to northwest winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop.
Tuesday night..Northwest winds 10 to 15 knots...becoming northeast and decreasing to 5 to 10 knots overnight. Seas 1 to 2 feet...subsiding to 1 foot or less. NEarshore waters a light to moderate chop...becoming mostly smooth.
Wednesday..East winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop.
Wednesday night through Thursday night..East to southeast winds near 15 knots. Seas 1 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Friday and Friday night..East to southeast winds 15 to 20 knots. Seas 2 to 3 feet. NEarshore waters choppy. Isolated showers.

7 Day Forecast for Marine Location Near Stock Island, FL
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location: 24.57, -81.75     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 240907
afdkey
area forecast discussion
national weather service key west fl
507 am edt Mon apr 24 2017

Discussion
A surface analysis this morning reveals a complex mean sea level
pressure pattern across the region, with a dumbbell-shaped low
pressure area between the georgia-south carolina border and the
northern bahamas. A weak, non-frontal trough extends southward
from the northern bahamas to the northwestern caribbean sea, while
a larger-scale frontal trough curves southwestward from
southeastern georgia to the southern gulf of mexico. Currently,
skies are mostly clear across the florida keys with key west
doppler radar showing no precipitation over the service area. The
keys remain in the warm sector at present, with current air
temperatures in the mid 70s, with dewpoint temperatures in the
lower 70s.

The weak front should reach most of the keys by late afternoon,
with an associated increase in west to northwest winds. The front
likely will be preceded by a broken band of showers which should
move through quickly. A drop in humidity will be the most
noticeable effect, lasting less than 48 hours. Rain-free
conditions should persist through Wednesday. By Wednesday night,
veering low-level winds will transport richer moisture back into
the area, with slight rain chances returning to the forecast. For
Thursday and beyond, freshening east to southeast breezes are
expected as an anticyclone builds over the western north atlantic.

Marine
A small craft advisory may be required for portions of the extreme
southeastern gulf of mexico late this afternoon or this evening.

Small craft should exercise caution across hawk channel and the
straits of florida late this afternoon, mainly for a short-lived
west-northwest wind surge. A weak cold front will move eastward
across the florida keys and adjacent coastal waters this
afternoon. A ridge of high pressure will build over the florida
peninsula Tuesday night and Wednesday, before lifting northward
Wednesday night through Friday.

Aviation
Vfr and gentle west to northwest breezes will prevail at the eyw and
mth terminals through 18z. A broken line of showers is possible late
this afternoon or early this evening, as a late season cold front
battles southeast through the gulf of mexico. Brief MVFR cigs/ ifr
vis will accompany any showers which impact the terminals. Gusty
northwest breezes will follow the frontal passage.

Preliminary point temps/pops
Key west 83 72 81 69 / 20 10 - -
marathon 86 72 83 69 / 20 10 - -

Key watches/warnings/advisories
Fl... None.

Gm... None.

Public/marine/fire... Kasper
aviation/nowcasts... .Clr
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
KYWF1 - 8724580 - Key West, FL 3 mi47 min NW 8 G 9.9 77°F 77°F1009.4 hPa
SANF1 - Sand Key, FL 10 mi27 min NW 8 G 9.9 75°F 1010.7 hPa (+1.5)67°F
VCAF1 - 8723970 - Vaca Key, FL 35 mi47 min WNW 7 G 9.9 80°F 77°F1008.6 hPa

Wind History for Key West, FL
(wind in knots)    EDIT      (on/off)   Help
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SE4
G7
SW3
N7
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N6
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1 day
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E10
G16
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E6
G11
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G16
NE7
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G17
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G16
E8
G16
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G12
E10
G15
SE7
G10
SE4
G7
E3
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E9
G16
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G17
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G16
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G18
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G18
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G12
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G17
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G14
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G16
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G17
E9
G16
SE11
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E7
G15
E8
G14
E8
G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL1 mi24 minNW 1010.00 miA Few Clouds77°F71°F82%1010.2 hPa
Key West Naval Air Station, FL3 mi24 minWNW 810.00 miPartly Cloudy75°F69°F82%1009.9 hPa

Wind History from EYW (wind in knots)
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Last 24hrE5E53SE6N7NW11N9NW11NW11NW10NW10N8N5NW5N4N4N4NW5NW8NW7NW7NW6NW8NW7
1 day agoE16
G19
E8E12E12
G21
E10E11E11E11
G15
E12E10
G19
E9
G18
E11E7SE11SE11SE15E17E12SE11E13SE10SE9SE7SE6
2 days ago--E15E14E18E16
G21
E16
G24
E15
G22
SE17
G22
E15E15E12E15E16E11E10E14
G19
SE15SE14E16E16S11E15
G24
E12E13

Tide / Current Tables for Cow Key Channel, Florida
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Cow Key Channel
Click for Map
Mon -- 04:36 AM EDT     0.07 feet Low Tide
Mon -- 05:42 AM EDT     Moonrise
Mon -- 06:57 AM EDT     Sunrise
Mon -- 11:01 AM EDT     1.05 feet High Tide
Mon -- 05:06 PM EDT     -0.10 feet Low Tide
Mon -- 06:10 PM EDT     Moonset
Mon -- 07:53 PM EDT     Sunset
Mon -- 11:41 PM EDT     1.02 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.70.50.20.10.10.20.40.60.811.110.80.50.2-0-0.1-00.10.40.60.81

Tide / Current Tables for Key West, Florida Current
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Key West
Click for Map
Mon -- 12:22 AM EDT     -2.12 knots Max Ebb
Mon -- 04:00 AM EDT     0.00 knots Slack
Mon -- 05:42 AM EDT     Moonrise
Mon -- 06:39 AM EDT     1.26 knots Max Flood
Mon -- 06:57 AM EDT     Sunrise
Mon -- 09:20 AM EDT     -0.00 knots Slack
Mon -- 12:37 PM EDT     -2.27 knots Max Ebb
Mon -- 04:11 PM EDT     0.00 knots Slack
Mon -- 06:10 PM EDT     Moonset
Mon -- 07:03 PM EDT     1.61 knots Max Flood
Mon -- 07:53 PM EDT     Sunset
Mon -- 09:59 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.1-2-1.6-0.9-00.81.21.210.3-0.6-1.6-2.2-2.2-1.9-1.2-0.20.71.41.61.40.9-0-1.1

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 (9,2,3,4)
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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.