Sunday, March26, 2017

Marine Weather and Tides
Marco Island, 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 7:22AMSunset 7:42PM Sunday March 26, 2017 4:50 PM EDT (20:50 UTC) Moonrise 5:27AMMoonset 5:27PM Illumination 1% Phase: New Moon; Moon at 29 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- 332 Pm Edt Sun Mar 26 2017
Tonight..East northeast winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. A slight chance of showers in the evening.
Monday..East northeast winds 5 to 10 knots becoming west in the afternoon. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop.
Monday night..East northeast winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop.
Tuesday..East northeast winds around 5 knots becoming west in the afternoon. Seas less than 2 feet. Period 3 seconds. Bay and inland waters a light chop.
Tuesday night..West northwest winds around 5 knots becoming east northeast late in the evening. Seas less than 2 feet. Bay and inland waters smooth.
Wednesday..South winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop.
Wednesday night..South southeast winds around 5 knots becoming east after midnight. Seas less than 2 feet. Bay and inland waters a light chop.
Thursday..South southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop.
Thursday night..Southeast winds 10 to 15 knots. Seas less than 2 feet nearshore and 2 to 3 feet offshore. Bay and inland waters light chop.
Friday..South southeast winds 10 to 15 knots. Seas 2 to 3 feet. Bay and inland waters a light chop.
GMZ600 Synopsis For Destin Fl To Pascagoula Ms Out 60 Nm Including Mobile Bay- 1006 Am Cdt Sun Mar 26 2017
Synopsis..A light to moderate southerly wind flow persists through mid week as high pressure rebuilds over the eastern and north central gulf. A stronger onshore flow...a resultant build in seas and higher chances of Thunderstorms return late this week as next storm system approaches from the west.

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 261900
area forecast discussion
national weather service miami fl
300 pm edt Sun mar 26 2017

Near term /through 6 am Monday morning/...

as of 300 pm edt... Plentiful low-level moisture continues to move
across the region in a brisk east/northeasterly flow, helping to
promote periods of scattered showers across the region. The 12z
observed kmfl sounding indicated some instability, around 500 j/kg,
present which may lead to some brief heavy downpours with the
heaviest showers. The formation of the gulf sea breeze late this
afternoon and early evening will also provide a focus for additional
shower activity along the gulf coast and interior, and cannot rule
out a few rumbles of thunder where coastal convergence is maximized.

For tonight, scattered showers streaming in off the atlantic will
continue to remain possible, mainly affecting eastern areas although
coverage should begin to gradually wane as the night progresses. The
easterly flow will also begin to weaken tonight as well. Low
temperatures will range from the upper 50s to upper 60s, coldest in
the interior and warmest in the east coast metro.

Short term /6 am Monday morning through Tuesday night/...

high pressure and increasing upper-level heights will build across
the region for early in the week. These features will allow for the
east/northeasterly flow to continue to slowly subside and eventually
become southeasterly by late Tuesday. Meanwhile, drier air and
lowering inversion levels associated with the high pressure will
move into the region, with generally dry conditions expected outside
of a brief light shower across eastern areas.

Highs Monday and Tuesday will generally be in the 80s with lows
Monday night ranging from the upper 50s to upper 60s. Lows Tuesday
night will generally be in the 60s, with a few upper 50s reading
possible in portions of the interior.

Long term /Wednesday through Saturday/...

the long term period will feature tranquil and dry weather as high
pressure continues to dominate. The next major weather feature looks
to occur late Friday and into the weekend as a frontal boundary
approaches the region. This frontal boundary looks to be the next
chance for possible widespread rainfall across the region. With a
southeast/east flow in place, temperatures will be above normal with
highs in the low to mid 80s for eastern areas, and upper 80s to near
90 for portions of the interior and gulf coast. Lows will generally
be in the 60s.

Winds will continue to gradually subside over the next few days as
high pressure builds into the region, with a return of good boating
conditions. The flow will initially be east/northeasterly, but
gradually become southeasterly by late Tuesday generally 15 knots or
less. Seas will be 4 feet or less into the midweek period.

The next marine concerns may begin Friday as southeasterly flow
strengthens to 15-20 knots ahead of an approaching frontal

Beach forecast
A high risk of rip currents will continue for the atlantic beaches
through this evening with a continued brisk easterly onshore flow.

The onshore flow will continue to gradually subside tonight and into
Monday, with the risk of rip currents decreasing to moderate for the
atlantic beaches on Monday. The rip current risk will continue to
decrease further heading into midweek.

Streamer has persisted over broward county into early afternoon
so will hold onto vcsh for those terminals through around 20z.

Gulf breeze arrival appears imminent for kapf, so vcsh in place
along with 1830z windshift to west.VFR conditions will prevail,
but cant rule out some brief restrictions associated with showers
until all activity ends after sunset. Aside from naples
aforementioned windshift, east wind around 10-12 kt today will
diminish to 5 kt overnight then increase to around 10 kt Monday

Preliminary point temps/pops
West palm beach 66 80 65 82 / 10 10 10 10
fort lauderdale 69 81 69 82 / 10 20 10 10
miami 68 82 67 84 / 10 20 10 10
naples 64 82 63 82 / 20 10 10 0

Mfl watches/warnings/advisories
Fl... High rip current risk until 8 pm edt this evening for flz168-172-

Am... None.

Gm... None.

Discussion... 92/irl
marine... 92/irl
aviation... 23/sk
beach forecast... 92/irl

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RKXF1 - Rookery Bay Reserve, FL 6 mi65 min ENE 8 81°F 63°F
NPSF1 - 8725110 - Naples, FL 12 mi50 min 72°F1017.6 hPa (-1.8)
WPLF1 - Watson Place, FL 30 mi110 min 75°F
CNBF1 - Cannon Bay, FL 33 mi110 min 76°F
LMRF1 - Lostmans River, FL 41 mi110 min 74°F
WIWF1 - Willy Willy, FL 44 mi110 min 76°F
LBRF1 - Broad River Lower, FL 45 mi170 min 73°F
FMRF1 - 8725520 - Fort Myers, FL 48 mi50 min ENE 4.1 G 9.9 79°F 76°F1017.5 hPa (-1.9)

Wind History for Naples, FL
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Naples, Naples Municipal Airport, FL13 mi57 minE 910.00 miOvercast81°F61°F51%1017.4 hPa

Wind History from APF (wind in knots)
Last 24hrW9W5W3W3CalmE8E6E4E4CalmE7E7E7E6E8E7E9E10NE11E8
1 day agoE16E13E12E14E12E11E7NE7E8E8E9E9NE7NE6E9E11E11E11E11
2 days agoNW8E13E5E15

Tide / Current Tables for Marco, Big Marco River, Florida
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Sun -- 12:22 AM EDT     2.08 feet High Tide
Sun -- 06:27 AM EDT     Moonrise
Sun -- 07:00 AM EDT     -0.32 feet Low Tide
Sun -- 07:24 AM EDT     Sunrise
Sun -- 01:10 PM EDT     1.97 feet High Tide
Sun -- 06:26 PM EDT     Moonset
Sun -- 07:04 PM EDT     0.08 feet Low Tide
Sun -- 07:41 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Coon Key, Florida
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Coon Key
Click for Map
Sun -- 12:59 AM EDT     3.31 feet High Tide
Sun -- 06:26 AM EDT     Moonrise
Sun -- 07:23 AM EDT     Sunrise
Sun -- 07:31 AM EDT     -0.20 feet Low Tide
Sun -- 01:38 PM EDT     3.43 feet High Tide
Sun -- 06:26 PM EDT     Moonset
Sun -- 07:40 PM EDT     Sunset
Sun -- 07:45 PM EDT     0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southeast    EDIT

Wind Forecast for Miami-South Florida, FL (16,3,4,5)
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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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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 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 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.