Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Key West, 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 7:25AMSunset 7:41PM Thursday March 23, 2017 5:58 PM EDT (21:58 UTC) Moonrise 3:16AMMoonset 2:35PM Illumination 14% 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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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- 412 Pm Edt Thu Mar 23 2017
.small craft advisory in effect for increasing winds...
Tonight..Northeast to east winds 10 to 15 knots...increasing to 20 to 25 knots by midnight. Seas around 2 feet...building to 3 to 5 feet. NEarshore waters a light to moderate chop...becoming very rough. Scattered showers and isolated Thunderstorms.
Friday..East winds 20 to 25 knots. Seas 4 to 5 feet. NEarshore waters very rough. Scattered showers.
Friday night..East winds 20 to 25 knots. Seas 4 to 6 feet. NEarshore waters very rough. Isolated showers.
Saturday..East winds near 20 knots. Seas 3 to 5 feet. NEarshore waters rough. Isolated showers.
Saturday night..East winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.
Sunday..East winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Sunday night and Monday..East winds 10 to 15 knots. Seas around 2 feet. NEarshore waters a light to moderate chop.
Monday night..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop.
Tuesday..East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop.
Tuesday night..Variable winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters mostly smooth.

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 231801
afdkey
area forecast discussion
national weather service key west fl
201 pm edt Thu mar 23 2017

Discussion
Currently
Kbyx detects no precipitation echoes in the forecast area. Skies
over the island chain are mostly sunny. Winds over land are north
to northeast near 10 mph. C-man winds, on average, are north to
northeast near 10 knots. Temperatures are near 80 degrees.

Short term (tonight through Sunday)
A trough of low pressure will pass through the florida keys
tonight. An atlantic ridge of high pressure will extend across
the southeastern united states Friday through Saturday. This ridge
of high pressure will slide southward Saturday night and Sunday.

Rain chances in the short term portion of the forecast will be
highest tonight ahead of and along the aforementioned trough of
low pressure. Fresh northeast to east breezes will develop tonight
and persist through at least Friday night.

Long term (Sunday night through Thursday)
An atlantic ridge of high pressure will extend across the florida
peninsula Sunday night through Monday night. This ridge of high
pressure will retreat eastward Tuesday. A weak pressure pattern
will prevail Tuesday night through Thursday. Near zero rain
chances will be advertised in the long term portion of the
forecast.

Marine
A small craft advisory will be in effect for all keys coastal
waters tonight due to northeast to east winds increasing to 20 to
25 knots. A small craft advisory will likely be required for all keys
coastal waters Friday and Friday night. A small craft advisory
will likely be required for the coastal waters of the atlantic
Saturday. A small craft advisory may be required for the coastal
waters of florida bay and the gulf of mexico Saturday. A small
craft advisory may be required for the coastal waters of the
atlantic Saturday night. No advisories expected Sunday through at
least Tuesday night.

Aviation
Tonight, through 12z,VFR conditions will prevail at both the eyw
and mth terminals. Gentle northeast winds from 020-040 degrees
will veer to 060 degrees and increase to 13-15 knots, with gusts
to between 20 and 25 knots after 00z. After 00z, brief MVFR/ifr
ceilings and visibilities are possible in isolated or widely
scattered showers and possibly a few thunderstorms. Amendments
will be issued as necessary.

Climate
On this date in florida keys weather history, in 1984, 1.90 inches
of rain fell at key west international airport. This set the daily
record for maximum rainfall measured in key west on march 23rd, a
record which still stands 33 years later. Rainfall records at key
west date back to 1871.

Preliminary point temps/pops
Key west 69 79 70 80 / 40 30 20 20
marathon 71 80 72 82 / 40 30 20 20

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

Gm... Small craft advisory for gmz031>035-042>044-052>055-072>075.

Public/marine/fire... Bs
aviation/nowcasts... .Futterman
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
SANF1 - Sand Key, FL 15 mi68 min NNE 6 G 7 73°F 1021 hPa (-1.3)67°F
KYWF1 - 8724580 - Key West, FL 17 mi40 min ESE 2.9 G 6
PLSF1 - Pulaski Shoal Light, FL 35 mi58 min N 6 G 6 72°F 1021 hPa (-1.3)
GKYF1 40 mi58 min 83°F

Wind History for Key West, FL
(wind in knots)    EDIT      (on/off)   Help
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N10
G14
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G11
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G12
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E10
G14
E8
G13
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G10
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N3
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NE6
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G14
NE7
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G12
NE9
G14
N10
G13
NE9
G13
E7
G13

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL20 mi65 minESE 710.00 miFair80°F62°F54%1020.4 hPa
Key West Naval Air Station, FL23 mi65 minE 1110.00 miA Few Clouds81°F62°F53%1020.1 hPa

Wind History from EYW (wind in knots)
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Last 24hrN10NW7N8NW6N5N3N3N5N7N6N8N7N9N7N6N8N8NE7NE6N96N8SE3E7
1 day agoE12E10E7E5E4E5NE4NE3NE4N4N4N6N7N6NE7NE7NE9NE10NE7N6N10N10N10N9
2 days agoNE8N7N7N5N6NE4NE4NE3NE4NE4N4N4NE6NE6NE5NE76NE6NE96N9N10
G15
E10E10

Tide / Current Tables for Sand Key Lighthouse, Sand Key Channel, Florida
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Sand Key Lighthouse
Click for Map
Thu -- 12:43 AM EDT     -0.04 feet Low Tide
Thu -- 04:14 AM EDT     Moonrise
Thu -- 07:13 AM EDT     0.82 feet High Tide
Thu -- 07:28 AM EDT     Sunrise
Thu -- 12:12 PM EDT     0.39 feet Low Tide
Thu -- 03:34 PM EDT     Moonset
Thu -- 06:25 PM EDT     1.30 feet High Tide
Thu -- 07:40 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0-00.10.20.40.60.80.80.80.70.60.50.40.40.60.811.21.31.31.20.90.60.3

Tide / Current Tables for Boca Grande Channel, Florida Current
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Boca Grande Channel
Click for Map
Thu -- 01:19 AM EDT     0.00 knots Slack
Thu -- 04:14 AM EDT     0.91 knots Max Flood
Thu -- 04:15 AM EDT     Moonrise
Thu -- 07:28 AM EDT     Sunrise
Thu -- 08:00 AM EDT     -0.00 knots Slack
Thu -- 11:07 AM EDT     -0.94 knots Max Ebb
Thu -- 01:50 PM EDT     0.00 knots Slack
Thu -- 03:35 PM EDT     Moonset
Thu -- 04:19 PM EDT     0.74 knots Max Flood
Thu -- 07:40 PM EDT     Sunset
Thu -- 07:43 PM EDT     -0.00 knots Slack
Thu -- 11:13 PM EDT     -1.24 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.20.40.80.90.90.80.50-0.5-0.8-0.9-0.8-0.50.10.50.70.70.60.3-0.1-0.7-1.1-1.2

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 (17,4,5,8)
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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.