Tuesday, June27, 2017 L-36.com


Marine Weather and Tides
St. Marks, 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 6:36AMSunset 8:44PM Tuesday June 27, 2017 10:07 PM EDT (02:07 UTC) Moonrise 9:27AMMoonset 10:52PM Illumination 16% Phase: Waxing Crescent; Moon at 4 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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GMZ730 Apalachee Bay Or Coastal Waters From Keaton Beach To Ochlockonee River Fl Out To 20 Nm- Coastal Waters From Apalachicola To Destin Fl Out 20 Nm- Coastal Waters From Ochlockonee River To Apalachicola Fl Out To 20 Nm- Coastal Waters From Suwannee River To Keaton Beach Out 20 Nm- Waters From Apalachicola To Destin Fl From 20 To 60 Nm- Waters From Suwannee River To Apalachicola Fl From 20 To 60 Nm- 846 Pm Edt Tue Jun 27 2017
Rest of tonight..East winds 5 to 10 knots. Seas 1 foot. Dominant period 4 seconds. Protected waters a light chop. Slight chance of showers and Thunderstorms.
Wednesday..Southeast winds around 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters smooth to a light chop. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.
Wednesday night..Southeast winds around 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters smooth to a light chop. Chance of showers and Thunderstorms.
Thursday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters smooth. A chance of showers and Thunderstorms.
Thursday night..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters smooth.
Friday..South winds 5 to 10 knots. Seas 1 to 2 feet. Protected waters smooth. A chance of showers and Thunderstorms.
Friday night through Sunday..Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Protected waters smooth. A slight chance of showers and Thunderstorms.
GMZ700 Synopsis For The Suwannee River To Destin Out To 60 Nm 846 Pm Edt Tue Jun 27 2017
Synopsis.. Winds and seas will be at generally low summertime levels through the next several days. Chances of showers and Thunderstorms are expected each day.

7 Day Forecast for Marine Location Near St. Marks, FL
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location: 30.08, -84     debug


Area Discussion for -
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Fxus62 ktae 280045
afdtae
area forecast discussion
national weather service tallahassee fl
845 pm edt Tue jun 27 2017

Update
Convection has been on a decreasing trend with the loss of daytime
heating and mainly just showers across the CWA this evening. Based
on radar trends though, did increase pops across the southeast
big bend area for the first half of the night to better account
for current conditions. Will continue to see a decrease in
precipitation though over the next few hours.

Prev discussion [711 pm edt]
Near term [through tonight]
The stalled front lies just south of our forecast area. Daytime
heating on the "dry" side of the front over our area has initialized
a light seabreeze as can be seen in the surface observations and
radar imagery. The inland extension of the seabreeze will be
moderated by drier air and northerly winds- chances for showers and
thunderstorms decrease sharply when you move north of a line from
valdosta to panama city. Temperatures are generally about where
they'll peak today- in the mid to upper 80s. Scattered convection is
expected to dissipate shortly after sunset. Overnight lows will be
around 70, slightly warmer along the immediate coastline.

Short term [Wednesday through Thursday night]
A weak disturbance over the western gulf of mexico will slowly
begin to move northeastward toward our region on Wednesday around
the northwestern edge of the subtropical ridge. This will lead to
a further increase in moisture and an small increase in rain
chances on Wednesday. Still expect coverage to be greatest,
however in the southeast florida big bend where convergence with
the big bend sea breeze will be maximized with the ese low level
flow.

By Thursday, most of the model guidance has the weak disturbance
moving northeastward across southern alabama and into middle
georgia. Expect a fairly early start to convection before sunrise
across the coastal waters off the florida panhandle. In fact, some
of this convective activity could limit destabilization later in
the afternoon across southeast alabama. As a result, haven't
shown a significant increase in pops in the western half of the
region, however, did increase pops into the likely category across
southwestern georgia. Expect with plenty of convection on Thursday
that afternoon temperatures will be held back into the mid 80s,
and perhaps even into the low 80s in the western half of the
region.

Long term [Friday through Tuesday]
Weak synoptic forcing will provide a fairly stagnant pattern through
the forecast period with ridging over the southeast us and weak
southerly surface winds. Typical afternoon summertime
thunderstorms with pops around 40-50% through the weekend for the
area are anticipated. Into next week the location of the ridge
remains a little uncertain, and associated subsidence might
slightly suppress convection. Pops on Tuesday are generally a
little lower around 30-40% as a result. High temperatures will be
in the upper 80s through the weekend, gradually shifting to lower
90s into next week, while low temperatures will remain in the
lower to mid 70s.

Aviation [through 00z Thursday]
Ongoing shra and tsra will diminish over the next several hours,
giving way toVFR conditions at all TAF sites. Overnight, ifr to
potentially lifr CIGS and vsbys are likely at vld once again with
conditions quickly improving toVFR after sunrise. Expect similar
conditions during the day tomorrow, with shra and tsra increasing
in coverage after 17z and slowly diminishing after 00z tomorrow
evening.

Marine
Winds and seas will be at generally low summertime levels through
the next several days. Chances of showers and thunderstorms are
expected each day.

Fire weather
Hazardous fire weather conditions are not expected as rh's will
remain above critical thresholds through the remainder of the week.

Chances for wetting rains will exist each afternoon through at least
the weekend.

Hydrology
The choctawhatchee river at bruce will crest on Wednesday just
below flood stage. All other rives are well below flood stage.

Over the next couple of days, scattered to numerous showers and
thunderstorms are expected, especially in the afternoon and
evening. Localized rainfall amounts could briefly cause some minor
flooding in urbanized areas, however, no significant flooding is
anticipated through the next few days.

Preliminary point temps pops
Tallahassee 71 89 73 88 73 20 40 30 50 20
panama city 74 86 75 84 76 20 40 30 50 10
dothan 69 89 72 83 72 0 30 30 50 20
albany 70 90 72 86 73 0 20 20 60 30
valdosta 69 90 72 89 72 30 40 30 60 30
cross city 70 90 72 90 73 40 70 40 50 30
apalachicola 74 86 76 85 76 20 50 30 40 10

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... None.

Update... Fieux
near term... Moore
short term... Godsey
long term... Godsey patton
aviation... Pullin
marine... Godsey
fire weather... Pullin
hydrology... Godsey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SHPF1 - SHP - Shell Point, FL 15 mi133 min NNW 4.1 G 5.1 75°F 1015.4 hPa
KTNF1 - Keaton Beach, FL 28 mi67 min NNE 1.9 G 2.9 75°F 1015.6 hPa (+0.8)
APXF1 - Apalachicola Reserve, FL 51 mi82 min NW 1.9 76°F 74°F

Wind History for Apalachicola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Perry-Foley, Perry-Foley Airport, FL23 mi2.2 hrsN 010.00 miLight Rain76°F73°F92%1015.9 hPa

Wind History from 40J (wind in knots)
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Last 24hrE8SE4CalmE4CalmCalmCalmCalmCalmNE3CalmCalmCalmNW3N3CalmS8CalmNW5S3CalmCalmCalmNE5
1 day agoCalmCalmCalmCalmCalmN3CalmCalmCalmCalmCalmCalmCalmW5W4N6E3E5CalmS4CalmCalmCalmCalm
2 days agoCalmSW3CalmCalmCalmCalmCalmCalmCalmCalmCalmW3W3W5SW7SW6SW5
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Tide / Current Tables for Aucilla River entrance, Florida
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Aucilla River entrance
Click for Map
Tue -- 05:52 AM EDT     3.13 feet High Tide
Tue -- 06:36 AM EDT     Sunrise
Tue -- 10:26 AM EDT     Moonrise
Tue -- 11:05 AM EDT     1.35 feet Low Tide
Tue -- 04:52 PM EDT     3.66 feet High Tide
Tue -- 08:41 PM EDT     Sunset
Tue -- 11:52 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.30.10.81.72.533.12.92.51.91.51.31.51.92.53.13.53.73.42.92.21.40.70.2

Tide / Current Tables for St. Marks River Entrance, Florida
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St. Marks River Entrance
Click for Map
Tue -- 05:49 AM EDT     3.37 feet High Tide
Tue -- 06:37 AM EDT     Sunrise
Tue -- 10:27 AM EDT     Moonrise
Tue -- 11:00 AM EDT     1.47 feet Low Tide
Tue -- 04:49 PM EDT     3.93 feet High Tide
Tue -- 08:41 PM EDT     Sunset
Tue -- 11:53 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.40.10.91.92.73.23.43.12.62.11.61.51.62.12.73.43.83.93.73.12.31.50.70.1

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 (22,6,7,8)
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Ground Weather Radar Station Tallahassee, 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.