Wednesday, January24, 2018 L-36.com


Marine Weather and Tides
Marco Island, 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 7:12AMSunset 6:06PM Wednesday January 24, 2018 2:15 AM EST (07:15 UTC) Moonrise 12:03PMMoonset 12:03AM Illumination 50% Phase: First Quarter Moon; Moon at 7 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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GMZ656 Coastal Waters From Chokoloskee To Bonita Beach Fl Out 20 Nm- Coastal Waters From East Cape Sable To Chokoloskee Fl Out 20 Nm- 930 Pm Est Tue Jan 23 2018
Rest of tonight..North northwest winds 5 to 10 knots nearshore and north 10 to 15 knots offshore. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. Patchy fog through the night. A slight chance of showers through the night.
Wednesday..North winds 5 to 10 knots nearshore and north 10 to 15 knots offshore. Seas around 2 feet. Period 4 seconds. Bay and inland waters a light chop. A slight chance of showers in the morning. A chance of showers in the afternoon.
Wednesday night..North northeast winds 10 to 15 knots nearshore and north northeast 15 to 20 knots offshore. Seas 2 to 3 feet. Period 4 seconds. Bay and inland waters a moderate chop. A chance of showers in the evening. A slight chance of showers after midnight.
Thursday..Northeast winds 10 to 15 knots nearshore and northeast 15 to 20 knots offshore. Seas 2 to 3 feet. Period 3 seconds. Bay and inland waters a moderate chop.
Thursday night through Friday night..East winds 15 to 20 knots. Seas around 2 feet nearshore and 2 to 4 feet with occasional to 5 feet offshore. Bay and inland waters a moderate chop.
Saturday..East winds 10 to 15 knots nearshore and east 15 to 20 knots offshore. Seas around 2 feet nearshore and 2 to 3 feet offshore. Bay and inland waters a light chop.
Saturday night..East southeast winds 10 to 15 knots. Seas less than 2 feet nearshore and 2 to 3 feet offshore. Bay and inland waters a light chop. A slight chance of showers.
Sunday..South southeast winds 10 to 15 knots. Seas around 2 feet. Bay and inland waters a light chop. Showers likely.
GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 944 Pm Cst Tue Jan 23 2018
Synopsis..A moderate to occasionally strong offshore flow becomes easterly by Thursday then southeasterly by Saturday as a cold front approaches from the west. The front moves through around Sunday morning with an offshore flow following in the wake of the front.

7 Day Forecast for Marine Location Near Marco Island, FL
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location: 25.97, -81.71     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 240602
afdmfl
area forecast discussion
national weather service miami fl
102 am est Wed jan 24 2018

Aviation Frontal boundary currently over the south florida
region will keep calm to variable wind across the east coast
terminals overnight. CIGS will fluctuate betweenVFR to MVFR
1500-2500 ft for most of the east coast terminals through the
morning hrs. Winds already northerly to the west will gradually
shift nnw after 12z for east coast terminals. Models suggest vcsh
near the east tafs sites by mid morning. Therefore, vcsh has been
included closer to 15z today. Nne shift with winds 10 to 15 knots
expected early Thu and less chance of shra.

Prev discussion issued 727 pm est Tue jan 23 2018
update...

broken line of showers over eastern palm beach extending to
central broward at 720pm moving eastward with lighter more
isolated activity farther south and west. This line of heavier
activity should mostly move into the atlantic by late evening. For
the rest of the night, showers over the southern and eastern
portions of south florida will consist of mainly light to
moderate isolated to scattered activity. Made slight adjustments
to pops based on latest radar and hrrr. Slowed down the rate of
temperatures falling overnight. No change was made to the forecast
low temperatures for Wednesday morning.

Prev discussion... Issued 655 pm est Tue jan 23 2018
aviation... Band of showers with the occasional storm moving into
region this evening just ahead of cold front. Vcsh for all sites
generally through 04z-08z, with storm threat too low to include in
the tafs at this time. Front moving in around same time with winds
becoming light nw. Models suggest prevailing ifr-MVFR CIGS coming
in with front, lingering through most of Wed as front stalls just
to the south. Shra chances expected to return for kfll-ktmb late
morning.

Prev discussion... Issued 429 pm est Tue jan 23 2018
discussion...

short term (this afternoon through Wednesday night): slow moving
cold front is responsible for showers and a few thunderstorms that
have been occurring this afternoon, mainly over northern portions
of south florida, including the lake region. This activity will
be migrating eastward through the early afternoon hours. The cold
front will move through south florida tonight. The air does not
become drier very quickly behind the front. With light winds, i
added patchy fog to the grids for the overnight period. Expect a
chance of showers to persist through Wednesday night, mainly
across southern and eastern portions of south florida.

The cold front has been weakening significantly as it moves
southeastward, so this cold front will not bring air as cold as
the fronts earlier this month. The coldest night will be
Wednesday night, when lows are forecast to range from the upper
40s in glades county to the lower 60s along the southeast beaches.

Medium range (Thursday-Saturday): strong high pressure building
in over the eastern u.S. Behind the front will bring clearing
skies and drier weather for late this week. The main story will
be the very strong pressure gradient and strong winds. Thursday
into Saturday, winds of 20-30 kt with gusts approaching gale force
are forecast for the atlantic waters. Winds will be NE Thursday,
gradually veering to E by late Friday.

Long term (Saturday night through Tuesday):
gfs and ECMWF develop a low pressure trough near the northeastern
gulf of mexico around the Sunday time frame. The models are in a
little better agreement than they had previously been on the
timing for bringing this feature across florida. Increasing
moisture and rain chances are likely for south florida, especially
Sunday afternoon into Monday. Behind the system, somewhat cooler
air can be expected as we head into the middle portion of next
week.

Marine...

a cold front will pass through south florida tonight, with a
chance of showers persisting over the waters into Wednesday night.

Hazardous northerly winds are expected to develop along with rough
seas Wednesday night into Thursday, then remain strong into the
weekend as they turn easterly. For the atlantic waters, seas in
the 7 to 9 foot range, with winds of 20-30 kt and gusts near gale
force will be possible later this week.

Beach forecast...

the rip current risk may increase on atlantic waters by late
Wednesday, and especially on Thursday as breezy north winds
impact the region. The winds will shift to NE on Thursday in
excess on 20 kt and become east on Friday, still over 20 kt. A
high risk of rip currents is likely Friday into Saturday on
atlantic beaches, when the strong winds will be out of the east.

Preliminary point temps pops
West palm beach 74 57 70 61 20 20 0 10
fort lauderdale 76 60 71 63 30 30 10 10
miami 77 61 72 62 30 30 10 10
naples 75 53 73 57 10 10 0 0

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Aviation... 67 mt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RKXF1 - Rookery Bay Reserve, FL 6 mi91 min 70°F 67°F
NPSF1 - 8725110 - Naples, FL 12 mi46 min N 5.1 G 7 65°F1018.9 hPa
LMRF1 - Lostmans River, FL 41 mi136 min 72°F
WIWF1 - Willy Willy, FL 44 mi136 min 76°F
FMRF1 - 8725520 - Fort Myers, FL 48 mi46 min NNE 4.1 G 6 65°F 70°F1019 hPa

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Naples, Naples Municipal Airport, FL13 mi23 minNNE 510.00 miMostly Cloudy67°F66°F97%1018.8 hPa

Wind History from APF (wind in knots)
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Last 24hrE6E5SE6SE3CalmNE3SE4SE6S11S12S11S14S11S9SW8SW5CalmNW3NW4N4N4N4N5NE5
1 day agoNE5NE6E5E5E5E6E9SE10
G19
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2 days agoN7NE6E7NE6N4N8NE8NE7NE8E10E8E6E7NE13E12E8NE6E7E6NE5NE5E5NE6NE5

Tide / Current Tables for Marco, Big Marco River, Florida
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Marco
Click for Map
Wed -- 12:02 AM EST     0.32 feet Low Tide
Wed -- 12:03 AM EST     Moonset
Wed -- 05:23 AM EST     1.47 feet High Tide
Wed -- 07:13 AM EST     Sunrise
Wed -- 12:03 PM EST     Moonrise
Wed -- 12:04 PM EST     0.55 feet Low Tide
Wed -- 05:20 PM EST     First Quarter
Wed -- 06:00 PM EST     1.93 feet High Tide
Wed -- 06:04 PM EST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.711.31.51.41.31.110.80.60.50.60.91.21.61.81.91.91.61.310.6

Tide / Current Tables for Coon Key, Florida
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Coon Key
Click for Map
Wed -- 12:02 AM EST     Moonset
Wed -- 12:08 AM EST     0.28 feet Low Tide
Wed -- 06:11 AM EST     2.31 feet High Tide
Wed -- 07:13 AM EST     Sunrise
Wed -- 12:03 PM EST     Moonrise
Wed -- 12:05 PM EST     0.56 feet Low Tide
Wed -- 05:20 PM EST     First Quarter
Wed -- 06:04 PM EST     Sunset
Wed -- 06:04 PM EST     2.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.71.21.72.12.32.21.91.51.10.70.60.71.11.72.22.72.82.72.41.91.30.8

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 (2,6,7,8)
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Ground Weather Radar Station Miami, 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.