Wednesday, November22, 2017 L-36.com


Marine Weather and Tides
Key West, 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 6:47AMSunset 5:39PM Wednesday November 22, 2017 7:37 AM EST (12:37 UTC) Moonrise 10:07AMMoonset 9:12PM Illumination 15% Phase: Waxing Crescent; Moon at 4 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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GMZ075 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 Am Est Wed Nov 22 2017
Today..Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers.
Tonight..East winds near 10 knots. Seas 1 to 2 feet. Isolated showers.
Thursday..South to southwest winds near 10 knots. Seas 1 to 3 feet. Scattered showers and isolated Thunderstorms.
Thursday night..South to southwest winds 10 to 15 knots. Seas 1 to 3 feet. Scattered showers and isolated Thunderstorms.
Friday..South to southwest winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated Thunderstorms.
Friday night..West to northwest winds 10 to 15 knots. Seas 2 to 4 feet. Isolated showers.
Saturday..Northwest to north winds 10 to 15 knots. Seas 2 to 4 feet. Isolated showers.
Saturday night..Northwest to north winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
Sunday..North winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
Sunday night..North to northeast winds 10 to 15 knots. Seas 2 to 4 feet. Isolated showers.

7 Day Forecast for Marine Location Near Key West, FL
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location: 24.55, -82.13     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 221007
afdkey
area forecast discussion
national weather service key west fl
507 am est Wed nov 22 2017

Discussion
A few showers were observed on the local doppler radar over the
waters south and west of key west. Elsewhere, mostly clear skies
were depicted from satellite imagery, including the florida keys.

Temperatures so far this morning have been able to drop to the low
to mid 70s with dew points in the lower 70s. Winds were light and
variable.

Forecast
The florida keys will continue to enjoy light to gentle surface
winds due to the lack of a pressure gradient today. Later today,
a surface low area will exit texas and reach the central waters of
the gulf of mexico. Both the GFS and european show a surface low
over the eastern gulf by thanksgiving morning but the GFS shows a
closer circulation while the euro is a more elongated area of low
pressure. GFS has it over central florida on Friday while the
euro has it off the western coast of florida. For the mean time,
the winds were kept between GFS and euro, with moderate breezes
for the gulf waters for Thursday and Friday. While this low passes
to our north, moisture and instability will increase for the
keys, bringing chances for showers and isolated thunderstorms. By
Saturday morning, this low will be off the coast of the carolinas
and its associated front will move southeast over the keys,
dropping the dew points to the low 60s by Saturday night. Lighter
winds and fair weather will return to the keys through Sunday.

On Sunday night, a weak cold front will move southeast across the
florida peninsula, reaching the keys during the early mornings of
Monday. Drier and cooler weather conditions are then expected for
our local area. After the passage of this front, a high pressure
will build over southeast united states, tightening the pressure
gradient and possibly requiring advisories for the waters from
Monday night on. But the forecast will be adjusted during the next
few days as the GFS and euro differ regarding the magnitude of the
increase in winds.

Marine
Northeast to east light to gentle breezes will prevail today
across the florida keys coastal waters. In increase in winds is
possible on Friday, especially for the gulf waters. A high
pressure will build over southeast us on Sunday, increasing the
winds over the keys Monday through Thursday.

Aviation
Vfr conditions will prevail at both the key west and marathon terminals
through Wednesday afternoon. A few passing showers could temporarily
bring MVFR conditions to either terminal, but there is only a slight
chance of that occurrence. Surface winds will be mainly from the
east to southeast between 5 and 10 knots.

Preliminary point temps pops
Key west 81 73 81 72 20 20 50 50
marathon 82 74 83 73 20 20 50 50

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Kn
aviation nowcasts... .Devanas
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SANF1 - Sand Key, FL 15 mi47 min 76°F 1013.6 hPa (+0.6)69°F
KYWF1 - 8724580 - Key West, FL 17 mi49 min NE 2.9 G 4.1 74°F 77°F1012.8 hPa
PLSF1 - Pulaski Shoal Light, FL 35 mi37 min E 2.9 G 2.9 77°F 1013.3 hPa (+0.8)

Wind History for Key West, FL
(wind in knots)    EDIT      (on/off)   Help
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NE3
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E6
G14
NE9
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G17
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NE3
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G10
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N6
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G8
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N2
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NE3
N9
G12
NE7
G10
NE5

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL20 mi44 minENE 310.00 miA Few Clouds0°F0°F%1013.3 hPa
Key West Naval Air Station, FL23 mi44 minENE 510.00 miA Few Clouds74°F73°F100%1013 hPa

Wind History from EYW (wind in knots)
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Last 24hrE3E4SE5SE6E6E4E6SE7E6E5E3E6E4E3NE4CalmNE3NE3NE5Calm3E3NE5NE3
1 day agoNE9NE10
G16
NE10NE10
G17
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G18
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E5E7NE10
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E12E5NE3NE6NE6NE5NE3NE4NE4NE3NE5
2 days agoN5N7N5N64N4NW7NW7NW6N6NW5NW6NW4NW6N3N3N3N3CalmCalmCalmN8NE5NE5

Tide / Current Tables for Sand Key Lighthouse, Sand Key Channel, Florida
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Sand Key Lighthouse
Click for Map
Wed -- 05:17 AM EST     0.14 feet Low Tide
Wed -- 06:48 AM EST     Sunrise
Wed -- 10:05 AM EST     Moonrise
Wed -- 11:30 AM EST     1.28 feet High Tide
Wed -- 04:25 PM EST     0.74 feet Low Tide
Wed -- 05:38 PM EST     Sunset
Wed -- 09:10 PM EST     Moonset
Wed -- 10:51 PM EST     1.85 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.30.90.50.30.20.20.40.60.91.11.31.31.210.80.70.80.91.11.31.61.81.8

Tide / Current Tables for Boca Grande Channel, Florida Current
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Boca Grande Channel
Click for Map
Wed -- 02:37 AM EST     -1.24 knots Max Ebb
Wed -- 05:53 AM EST     0.00 knots Slack
Wed -- 06:49 AM EST     Sunrise
Wed -- 08:35 AM EST     1.25 knots Max Flood
Wed -- 10:06 AM EST     Moonrise
Wed -- 12:24 PM EST     -0.00 knots Slack
Wed -- 03:22 PM EST     -0.93 knots Max Ebb
Wed -- 05:39 PM EST     Sunset
Wed -- 06:27 PM EST     0.00 knots Slack
Wed -- 08:45 PM EST     0.82 knots Max Flood
Wed -- 09:11 PM EST     Moonset
Wed -- 11:35 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.9-1.2-1.2-1-0.50.10.71.21.210.60.2-0.3-0.7-0.9-0.9-0.6-0.20.30.70.80.60.2

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.