Thursday, May24, 2018 L-36.com


Marine Weather and Tides
Stock Island, FL

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 6:38AMSunset 8:09PM Thursday May 24, 2018 9:37 PM EDT (01:37 UTC) Moonrise 2:49PMMoonset 2:33AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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- 434 Pm Edt Thu May 24 2018
Tonight..East to southeast winds 10 to 15 knots. Seas around 2 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.
Friday..East to southeast winds near 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet. NEarshore waters a moderate chop, becoming choppy. Numerous showers and isolated Thunderstorms.
Friday night..Southeast winds near 20 knots. Seas 3 to 4 feet. NEarshore waters rough. Numerous showers and isolated Thunderstorms.
Saturday..Southeast winds 20 to 25 knots. Seas 4 to 5 feet. NEarshore waters very rough. Widespread showers and scattered Thunderstorms.
Saturday night..Southeast to south winds 20 to 25 knots. Seas 4 to 6 feet. NEarshore waters very rough. Widespread showers and scattered Thunderstorms.
Sunday..Southeast to south winds 20 to 25 knots. Seas 4 to 6 feet. NEarshore waters very rough. Numerous showers and isolated Thunderstorms.
Sunday night..South winds 15 to 20 knots. Seas 3 to 5 feet. NEarshore waters choppy. Numerous showers and isolated Thunderstorms.
Monday..Southeast to south winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Scattered showers and isolated Thunderstorms.
Monday night..Southeast to south winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms.
Tuesday and Tuesday night..Southeast to south winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.

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 241931
afdkey
area forecast discussion
national weather service key west fl
331 pm edt Thu may 24 2018

Discussion
Currently
Weak shower coverage has gradually across the western florida
straits, and a few isolated cells have propagated across the
middle and upper keys this afternoon, but only a few lightning
strikes have occurred in our far western forecast domain thus far
today. IR differential water vapor mimic imagery indicates a
steady moistening air mass out of the southwest, near a surface
low just east of the yucatan peninsula that continues to become
better defined. The 2pm special tropical weather outlook from the
nhc has indicated a high chance of tropical or subtropical
development through 48 hours (80%), as well as through 5 days
(90%).

Temperatures across the island chain range from 81 in cloud cover to
87 in peaks of sun, with dew points holding steady near the mid
70s. Across our marine district, winds are east at 10-15 knots.

Forecast
A wet pattern remains in place across the florida keys and most of
the state and southeast us as all eyes remain on the disturbance
east of the yucatan. The system is forecast to remain somewhat
stationary before shifting northward Friday night, emerging into
the southern gulf of mexico Saturday, shifting into the north-
central gulf Sunday into Monday. Primary impacts from the system
for the keys, regardless of development, will be the potential
for heavy rainfall and gusty winds (with isolated thunderstorms)
into memorial day weekend, Saturday and Saturday night under the
greatest probability due to the proximity of the low during that
time frame. Wpc includes portions of the keys in a marginal
excessive rainfall risk for Friday and Saturday.

The tropical or subtropical system is expected to move into the
northern gulf coast Monday evening and into the southeast us
thereafter. However, the bermuda high positioned to our east will
keep deep tropical moisture across the florida keys through at
least Tuesday. However, the high pressure ridge axis shifts
westward, and will drag a dry air mass to south florida mid to
late next week... Possibly putting an end to our highly anomalous
synoptically wet pattern, just in time for the official start of
hurricane season.

Marine
No watches, warnings, or advisories are currently in place across
the coastal waters surrounding the florida keys. Small craft
advisory conditions may be possible Friday night, lasting into the
holiday weekend.

Aviation
Vfr conditions are expected at both the key west and marathon
terminals through this evening and overnight. There is a chance of a
passing shower which may bring brief periods of MVFR conditions.

Near surface winds will be mainly from the east between 5 and 10
knots, increasing to near 15 knots after sunrise Friday.

Preliminary point temps pops
Key west 76 82 75 81 50 60 60 80
marathon 76 85 76 84 50 60 60 80

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Mclovin
aviation nowcasts... .Devanas
data collection... ... Bt
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 mi50 min SSW 1 G 5.1
SANF1 - Sand Key, FL 10 mi48 min 77°F 1016 hPa (-0.3)71°F
SMKF1 - Sombrero Key, FL 34 mi48 min 79°F 1015.5 hPa (+0.0)73°F
VCAF1 - 8723970 - Vaca Key, FL 35 mi50 min ESE 4.1 G 6 80°F 82°F1016 hPa

Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL1 mi45 minN 010.00 miPartly Cloudy78°F75°F90%1016.1 hPa
Key West Naval Air Station, FL3 mi45 minno data9.00 miLight Rain77°F72°F85%1015.9 hPa

Wind History from EYW (wind in knots)
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Last 24hrE8SE8E8E6E7E7E4E4E5E6E5E7E7E9E8E11E7SE7SE6SE5SE3CalmSW6Calm
1 day agoE16
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E16E15SE14SE15SE13SE13E14E14E15E14E12E12E14SE12SE11SE9SE9SE10SE7E8E8SE8E8
2 days agoE12SE18
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G25
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Tide / Current Tables for Cow Key Channel, Florida
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Cow Key Channel
Click for Map
Thu -- 02:15 AM EDT     0.10 feet Low Tide
Thu -- 03:33 AM EDT     Moonset
Thu -- 06:39 AM EDT     Sunrise
Thu -- 09:02 AM EDT     0.95 feet High Tide
Thu -- 02:56 PM EDT     0.16 feet Low Tide
Thu -- 03:49 PM EDT     Moonrise
Thu -- 08:08 PM EDT     Sunset
Thu -- 09:27 PM EDT     0.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.20.10.10.30.40.60.80.910.90.80.60.40.20.20.20.30.50.60.80.90.80.7

Tide / Current Tables for Key West, Florida Current
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Key West
Click for Map
Thu -- 01:51 AM EDT     0.00 knots Slack
Thu -- 03:33 AM EDT     Moonset
Thu -- 04:46 AM EDT     0.91 knots Max Flood
Thu -- 06:40 AM EDT     Sunrise
Thu -- 07:00 AM EDT     -0.00 knots Slack
Thu -- 10:37 AM EDT     -1.73 knots Max Ebb
Thu -- 02:18 PM EDT     0.00 knots Slack
Thu -- 03:49 PM EDT     Moonrise
Thu -- 05:19 PM EDT     1.08 knots Max Flood
Thu -- 07:41 PM EDT     -0.00 knots Slack
Thu -- 08:08 PM EDT     Sunset
Thu -- 11:12 PM EDT     -1.65 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.1-0.50.10.50.80.90.6-0-0.8-1.4-1.7-1.7-1.4-0.9-0.20.40.81.110.5-0.2-1-1.5-1.6

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (21,6,7,8)
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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.