Thursday, March23, 2017

Marine Weather and Tides
Goodland, 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 6:31 AM EDT (10:31 UTC) Moonrise 3:16AMMoonset 2:31PM Illumination 18% Phase: Waning Crescent; Moon at 25 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- 402 Am Edt Thu Mar 23 2017
.small craft advisory in effect from this evening through Friday morning...
Today..East northeast winds 5 to 10 knots. Seas around 2 feet. Period 4 seconds. Bay and inland waters a light chop. A slight chance of showers in the morning...then a chance of showers and a slight chance of Thunderstorms in the afternoon.
Tonight..East northeast winds around 20 knots. Seas 2 to 3 feet. Period 3 seconds. Bay and inland waters a moderate chop. A slight chance of showers.
Friday..East winds 15 to 20 knots. Seas 2 to 3 feet. Period 3 seconds. Bay and inland waters a moderate chop. A slight chance of showers in the afternoon.
Friday night..East winds 10 to 15 knots with gusts to around 25 knots. Seas around 2 feet. Period 3 seconds. Bay and inland waters a light chop.
Saturday..East southeast winds 10 to 15 knots. Seas around 2 feet. Bay and inland waters a light chop.
Saturday night..East winds 10 to 15 knots. Seas around 2 feet. Bay and inland waters a light chop.
Sunday and Sunday night..East northeast winds 5 to 10 knots. Seas around 2 feet. Bay and inland waters a light chop.
Monday..Southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop.
GMZ600 Synopsis For Destin Fl To Pascagoula Ms Out 60 Nm Including Mobile Bay- 402 Am Cdt Thu Mar 23 2017
Synopsis..An area of high pressure will build over the mid-atlantic and western atlantic while and area of low pressure develops over the plains through the end of the week. As a result, a moderate to strong onshore flow will develop along with increasing chances of showers and Thunderstorms by this weekend.

7 Day Forecast for Marine Location Near Goodland, FL
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location: 25.84, -81.57     debug

Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 230811
area forecast discussion
national weather service miami fl
411 am edt Thu mar 23 2017

Today-tonight: weakening frontal boundary making it's way south and
west across central florida early this morning, generating a few
showers and storms, mainly across the waters. Analysis shows that
the deeper moisture associated with the boundary is lagging
behind slightly, and while the boundary and wind shift are likely
to arrive into south florida early morning, the deeper moisture
may lag more towards this afternoon.

Despite this, enough low-level moisture, along with weak
overrunning/isentropic lift will allow scattered showers to spread
from northeast to southwest across the region through the morning
hours. The best rain chances will be late morning into this
afternoon, when the deeper moisture and best lift combine.

Upper level vort maxes crossing the peninsula this morning have
brought in much colder temperatures aloft, with RUC analysis showing
500mb temps around -14 to -16c. With another vort MAX expected to
cool temps a degree or two, and daytime temperatures still expected
to climb into the upper 70s and low 80s, mid level lapse rates will
be quite steep today. This instability means that a few storms can't
be ruled out, especially along the east coast and lake okeechobee
region. It also sets up a favorable environment for a few strong
storms with hail, and SPC has placed most of south florida under a
marginal risk for today. Overall rainfall amounts are expected to
generally be light, but a few areas could see a nice soaking
rainfall of around a half an inch, helping the ongoing drought

Conditions to become breezy to windy late in the day as east-
northeast wind surge arrives behind the boundary, with the
strongest winds along the east coast. Overnight lows will be in
the around 60 over the interior and gulf coast and mid-upper 60s
for the east coast.

Friday: boundary moves south of the region and washes out as strong
high pressure builds to the north. The tight pressure gradient will
lead to an breezy to windy day, with wind gusts of 20-30 mph common
at times. Lingering showers along the east coast will also

Highs on Friday behind the front will be slightly cooler, ranging
from the mid 70s to around 80. Low temperatures will generally be in
the 60s, with a few upper 50s readings in the interior.

Saturday-Wednesday: models have shifted westwards with the cut-off
low that had been forecast to meander well east of the bahamas. This
results in a weaker and shorter lived upper level ridge moving
across the fl peninsula on Saturday. The weaker ridge in turn allows
the next system moving across the tn/ms valley to dig a little
further south before the ridge rebuilds Monday and Tuesday.

Generally easterly flow will prevail through the period, remaining
breezy on Saturday before the surface gradient weakens Sunday and
Monday. Periodic showers are expected through the period off the
atlantic as easterly flow continues to bring in low level
moisture. Some enhancement in coverage is possible during the
weekend as vort maxes rotate through the region, and again on
Tuesday as another weak front approaches.

Temperatures will be near to slightly above normal for the long term

Marine Boating conditions will begin deteriorating late this
morning over the atlantic waters, and into this evening over the
gulf as a weak frontal boundary moves across the region. The
boundary will also bring scattered to numerous showers, with the
potential for a few storms, especially over the local atlantic

Expect east-northeast winds 20-25kts over much of the local waters,
including biscayne bay, through the overnight hours with seas
building to 9-11ft in the gulf stream. Winds diminish into Friday,
but hazardous marine conditions for the atlantic waters are
expected to continue through Saturday. A small craft advisory is
currently in effect for the atlantic waters from midday, and the
gulf waters starting this evening.

Aviation GenerallyVFR conditions should prevail, though sub-
vfr conditions are possible with overnight fog possible at apf.

Showers and thunderstorms will be possible today, with a focus on
the east coast during the afternoon and evening.

Beach forecast East-northeasterly wind surge arrives early this
afternoon with frontal boundary, leading to a rapid increase in the
rip current threat along all the atlantic beaches. There is a high
risk of rip currents for all the east coast beaches today and into
the weekend.

Fire weather Light to moderate showers are expected to overspread
much of the region through the day with a frontal boundary, along
with a threat for isolated thunderstorms. A few showers may also
linger along the east coast into Friday, with relative humidity
values expected to remain above critical levels through Saturday.

Gusty east-northeast winds will also arrive with the boundary late
today, leading to very good to excellent dispersions across much of
the region into Saturday.

Preliminary point temps/pops
West palm beach 78 69 78 68 / 60 40 20 10
fort lauderdale 79 69 78 70 / 60 50 30 20
miami 81 68 79 69 / 50 40 40 20
naples 80 62 82 62 / 40 20 10 0

Mfl watches/warnings/advisories
Fl... High rip current risk from 8 am edt this morning through Friday
evening for flz168-172-173.

Am... Small craft advisory from noon today to 8 am edt Saturday for

Gm... Small craft advisory from 8 pm this evening to 11 am edt Friday
for gmz656-657-676.

Discussion... 88/alm
marine... 88/alm
aviation... 02/rag
beach forecast... 88/alm
fire weather... 88/alm

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RKXF1 - Rookery Bay Reserve, FL 16 mi106 min NW 2.9 62°F 60°F
WPLF1 - Watson Place, FL 19 mi91 min 73°F
CNBF1 - Cannon Bay, FL 22 mi91 min 76°F
NPSF1 - 8725110 - Naples, FL 24 mi43 min 72°F1019.4 hPa
LMRF1 - Lostmans River, FL 29 mi91 min 73°F
WIWF1 - Willy Willy, FL 33 mi91 min 77°F
LBRF1 - Broad River Lower, FL 34 mi151 min 73°F
HREF1 39 mi91 min 73°F
BDVF1 - Broad River, FL 40 mi91 min 75°F
SREF1 42 mi91 min 73°F
GBIF1 - Gunboat Island, FL 43 mi91 min 73°F
TPEF1 - Tarpon Bay East, FL 44 mi151 min 75°F
CANF1 - Cane Patch, FL 44 mi151 min 73°F
CWAF1 48 mi151 min 74°F
NRRF1 49 mi91 min 75°F

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, FL24 mi38 minN 39.00 miFair67°F64°F93%1019.5 hPa

Wind History from APF (wind in knots)
Last 24hrCalmCalmCalmCalmW9NW6W7W10W11
1 day agoNE3NE3NE3E4SE7E5W10SW12W11W11W13W11W8NW6NW5NW4W3CalmCalmCalmCalmCalmCalmCalm
2 days agoN5N7NE66N8444W11W14NW12NW10

Tide / Current Tables for Round Key, Florida
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Round Key
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Thu -- 04:15 AM EDT     Moonrise
Thu -- 05:12 AM EDT     -0.02 feet Low Tide
Thu -- 07:26 AM EDT     Sunrise
Thu -- 11:45 AM EDT     3.15 feet High Tide
Thu -- 03:31 PM EDT     Moonset
Thu -- 05:26 PM EDT     1.20 feet Low Tide
Thu -- 07:38 PM EDT     Sunset
Thu -- 11:04 PM EDT     3.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Cape Romano, Florida
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Cape Romano
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Thu -- 04:15 AM EDT     Moonrise
Thu -- 05:07 AM EDT     0.15 feet Low Tide
Thu -- 07:27 AM EDT     Sunrise
Thu -- 11:34 AM EDT     2.78 feet High Tide
Thu -- 03:31 PM EDT     Moonset
Thu -- 05:15 PM EDT     1.53 feet Low Tide
Thu -- 07:39 PM EDT     Sunset
Thu -- 10:51 PM EDT     2.74 feet High 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 (6,6,7,8)
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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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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.