Thursday, September21, 2017 L-36.com


Marine Weather and Tides
North Key Largo, 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 7:09AMSunset 7:19PM Thursday September 21, 2017 5:10 PM EDT (21:10 UTC) Moonrise 7:22AMMoonset 7:32PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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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AMZ630 Biscayne Bay- 422 Pm Edt Thu Sep 21 2017
Tonight..East northeast winds 5 to 10 knots. Bay waters a light chop. A chance of showers and Thunderstorms.
Friday..East northeast winds 5 to 10 knots. Bay waters a light chop. Showers and Thunderstorms likely.
Friday night..East winds 5 to 10 knots. Bay waters a light chop. A chance of showers and Thunderstorms.
Saturday..East northeast winds 10 to 15 knots. Bay waters a moderate chop. A chance of showers and Thunderstorms.
Saturday night..East winds 5 to 10 knots. Bay waters a light chop. A chance of showers and Thunderstorms.
Sunday and Sunday night..Northeast winds around 5 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Monday..Northeast winds around 5 knots becoming east southeast in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Monday night..South southeast winds 5 knots in the evening becoming variable winds less than 5 knots...then becoming northeast 5 knots in the morning. Bay waters smooth. A slight chance of showers and Thunderstorms.
Tuesday..North winds 5 knots becoming east northeast in the morning...then becoming southeast in the afternoon becoming east northeast in the evening. Bay waters smooth. A chance of showers and Thunderstorms.
AMZ600 Synopsis For Jupiter Inlet To Ocean Reef Fl Out To 60 Nm And For East Cape Sable To Bonita Beach Fl Out To 60 Nm- 422 Pm Edt Thu Sep 21 2017
Synopsis..A long period northeasterly swell from tropical storm jose will continue across the local atlantic waters through Friday before a northeasterly swell from hurricane maria moves into the atlantic waters this weekend. This will allow for the seas to build through the weekend across the atlantic waters. Winds across the atlantic and gulf waters will remain east northeasterly through the upcoming weekend at 10 to 15 knots. These winds will begin to decrease early next week and they will become more northerly.
Gulf stream hazards..Long period northeasterly swell will bring seas up to 6 feet off palm beach county. The approximate location of the west wall of the gulf stream as of sep 21, 2017 at 1200 utc... 6 nautical miles east southeast of fowey rocks. 11 nautical miles east of port everglades. 5 nautical miles east northeast of lake worth. 8 nautical miles east northeast of jupiter inlet. This data courtesy of the naval oceanographic office.

7 Day Forecast for Marine Location Near North Key Largo, FL
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location: 25.31, -80.27     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 212040
afdmfl
area forecast discussion
national weather service miami fl
440 pm edt Thu sep 21 2017
discussion...

showers and thunderstorms that have developed across the region
this afternoon will begin to diminish as the the evening
progresses. High pressure currently located over the gulf of
mexico will begin to weaken on Friday as a trough of low pressure
digs into the southeastern portion of the country. This will
increase the shower and thunderstorm chances across south florida
on Friday and Saturday. At the same time, hurricane maria will
move in a more northerly direction. We do not expect any direct
impacts from maria as it will pass off to the east.

As the trough begins to lift out of the region later this weekend
into early next week, drier air will move into the region as the
winds become more northerly due to maria passing off to the east.

Therefore, the chances of shower and thunderstorm activity will
decrease by the beginning of next week across the region. Both of
the GFS and the ECMWF continue to show a northerly wind flow
through the middle to end of next week. This will help to keep the
drier weather in place across south florida with lower chances of
showers and thunderstorms.

Marine
A long period northeasterly swell from tropical storm jose will
continue across the local atlantic waters through Friday before a
northeasterly swell from hurricane maria moves into the atlantic
waters this weekend. This will allow for the seas to build through
the weekend across the atlantic waters. Winds across the atlantic
and gulf waters will remain east northeasterly through the
upcoming weekend at 10 to 15 knots. These winds will begin to
decrease early next week and they will become more northerly.

Preliminary point temps pops
West palm beach 78 89 78 89 30 50 40 50
fort lauderdale 80 90 79 89 30 60 40 40
miami 79 90 78 90 30 60 40 40
naples 76 90 75 91 20 60 30 40

Mfl watches warnings advisories
Fl... High rip current risk through Friday evening for flz168.

Am... None.

Gm... None.

Discussion... 55 cwc
marine... 55 cwc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HCEF1 - Highway Creek, FL 10 mi131 min 90°F
LSNF1 - Long Sound, FL 11 mi71 min 90°F
LBSF1 - Little Blackwater, FL 11 mi131 min 88°F
BWSF1 - Blackwater Sound, FL 13 mi131 min 88°F
DKKF1 - Duck Key, FL 15 mi131 min 88°F
BNKF1 - Butternut Key, FL 20 mi71 min 89°F
LMDF1 - Little Madeira, FL 21 mi71 min 91°F
FWYF1 - Fowey Rocks, FL 21 mi71 min NNE 7 G 8.9 83°F 86°F1013.5 hPa (-1.5)
TRRF1 - Taylor River, FL 21 mi71 min 91°F
BOBF1 - Bob Allen, FL 29 mi71 min 91°F
VAKF1 - 8723214 - Virginia Key, FL 30 mi125 min W 2.9 G 5.1 82°F 86°F1013.1 hPa
GBTF1 - Garfield Bight, FL 30 mi71 min 89°F
BKYF1 33 mi71 min 86°F
LRIF1 33 mi71 min 91°F
NRRF1 34 mi71 min 88°F
WWEF1 36 mi131 min 87°F
CANF1 - Cane Patch, FL 36 mi131 min 89°F
TPEF1 - Tarpon Bay East, FL 37 mi131 min 85°F
MUKF1 - Murray Key, FL 38 mi71 min 88°F
JKYF1 - Johnson Key, FL 38 mi131 min 92°F
CWAF1 39 mi131 min 91°F
BDVF1 - Broad River, FL 40 mi71 min 88°F
GBIF1 - Gunboat Island, FL 41 mi71 min 87°F
HREF1 43 mi71 min 85°F
SREF1 44 mi71 min 88°F
WIWF1 - Willy Willy, FL 45 mi131 min 89°F

Wind History for Virginia Key, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL13 mi2.2 hrsN 1110.00 miThunderstorm in Vicinity82°F71°F70%1013.5 hPa

Wind History from HST (wind in knots)
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Last 24hrE6E5E3E3E4E4E3CalmCalmW3CalmCalmNW3CalmN4NW5N5CalmNE6E8E6N11CalmNE8
1 day agoS10S7S6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4E6E7E5S7SE5E7E6
2 days agoNW7NW5W3SW7SW4CalmCalmCalmNW6NW5NW4CalmNW3CalmCalmW4NW7W5W6W8W7W6SE10SE10

Tide / Current Tables for Ocean Reef Harbor, Key Largo, Florida
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Ocean Reef Harbor
Click for Map
Thu -- 03:47 AM EDT     0.21 feet Low Tide
Thu -- 07:09 AM EDT     Sunrise
Thu -- 08:22 AM EDT     Moonrise
Thu -- 09:59 AM EDT     3.24 feet High Tide
Thu -- 04:10 PM EDT     0.41 feet Low Tide
Thu -- 07:18 PM EDT     Sunset
Thu -- 08:32 PM EDT     Moonset
Thu -- 10:16 PM EDT     3.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.50.80.30.20.51.11.82.533.23.12.51.91.20.60.40.611.62.32.83.13

Tide / Current Tables for Caesar Creek, Biscayne Bay, Florida Current
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Caesar Creek
Click for Map
Thu -- 02:23 AM EDT     -2.28 knots Max Ebb
Thu -- 05:49 AM EDT     0.00 knots Slack
Thu -- 07:09 AM EDT     Sunrise
Thu -- 08:21 AM EDT     Moonrise
Thu -- 08:44 AM EDT     1.68 knots Max Flood
Thu -- 11:38 AM EDT     -0.00 knots Slack
Thu -- 02:45 PM EDT     -2.24 knots Max Ebb
Thu -- 06:16 PM EDT     0.00 knots Slack
Thu -- 07:18 PM EDT     Sunset
Thu -- 08:32 PM EDT     Moonset
Thu -- 08:57 PM EDT     1.41 knots Max Flood
Thu -- 11:45 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-1.8-2.2-2.2-1.7-0.90.21.11.61.71.40.7-0.4-1.5-2.1-2.2-1.9-1.2-0.30.61.21.41.20.7

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 Miami-South Florida, FL (17,4,5,8)
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Ground Weather Radar Station Miami, FL
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weather_mapweather_map weather_map

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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.