Thursday, November23, 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 7:09AMSunset 5:38PM Thursday November 23, 2017 11:00 PM EST (04:00 UTC) Moonrise 11:10AMMoonset 10:00PM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 858 Pm Est Thu Nov 23 2017
Overnight..Northeast winds 15 knots. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a moderate chop. Chance of rain in the evening.
Friday..North winds 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters a light chop. Slight chance of rain in the morning.
Friday night..North winds 5 to 10 knots until early morning becoming light and variable winds. Seas 1 foot or less. Dominant period 3 seconds. Protected waters smooth.
Saturday..Northwest winds 5 to 10 knots. Seas 1 foot or less. Dominant period 2 seconds. Protected waters mostly smooth.
Saturday night..North winds 10 knots. Seas 1 to 2 feet. Dominant period 2 seconds. Protected waters a light chop.
Sunday through Sunday night..North winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light to moderate chop.
Monday..Northeast winds 10 knots. Seas 1 to 2 feet. Protected waters a light chop.
Monday night through Tuesday..East winds 10 knots. Seas 1 to 2 feet. Protected waters a light chop.
GMZ700 Synopsis For The Suwannee River To Destin Out To 60 Nm 858 Pm Est Thu Nov 23 2017
Synopsis..Northeasterly winds will be 15 to 20 knots tonight offshore. Winds and seas will decrease by Friday afternoon. Winds will be light to moderate through mid week.

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 240032
afdtae
area forecast discussion
national weather service tallahassee fl
732 pm est Thu nov 23 2017

Update
No significant changes to the previous forecast appear necessary.

Updated pops to match current radar trends with the band of light
rain across portions of taylor, madison, and lowndes counties as
of 00z. This light rain is still expected to decrease later
tonight across the area.

Prev discussion [627 pm est]
Near term [through tonight]
Patches of light rain will end across the valdosta region and the
big bend this evening as a cooler and drier airmass continue to
filter in from the west. Clouds will diminish as well although there
is a possibility of fog developing across our easternmost zones
overnight. Lows will range from the middle 40s northwest to the
lower 50s southeast.

Short term [Friday through Saturday night]
In the upper levels a trough remains over the southeast. At the
surface a gulf low is centered off the atlantic coast of florida on
Friday morning. High pressure will move into the region on Friday
afternoon and Friday night. A weak decaying cold front will approach
the region Saturday night. Pops will be low with the best chance of
rain in eastern big bend florida on Friday morning as the gulf low
moves out (pops 15 to 30 percent). Temps will be seasonable with
highs in the upper 60s to lower 70s and lows in the 40s.

Long term [Sunday through Thursday]
In the upper levels a trough will be over the southeast
until a ridge builds in on Monday night. At the surface a weak
decaying cold front will move through early Sunday followed by high
pressure in the southeast. Pops will be near zero early in the week.

A slight chance for rain is forecast mid week. Highs will be in the
upper 60s and lower 70s. Lows will be mainly in the 40s.

Aviation [through 00z Saturday]
Cooler and drier air is working in from the northwest on the
backside of departing surface low. Flt conds will improve with
time tonight from west to east with vld the latest. MVFR currently
at tlh aby will return toVFR in the next few hours. Vld to return
toVFR closer to dawn.VFR at all TAF sites Friday.

Marine
Northeasterly winds will be 15 to 20 knots tonight offshore. Winds
and seas will decrease by Friday afternoon. Winds will be light to
moderate through mid week.

Fire weather
Other than marginally low dispersion values across the western
florida panhandle Friday, hazardous fire weather conditions are not
expected over the next several days.

Hydrology
A few spots in eastern big bend florida have received 2 to 3 inches
of rain. Additional rain is possible through tomorrow morning mainly
in the eastern big bend of florida. However any additional rain will
likely be less than 0.25 inch. River flooding is not expected since
river levels are still low.

Spotter information statement
Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur by calling the office or tweeting us @nwstallahassee.

Preliminary point temps pops
Tallahassee 48 70 46 71 44 10 10 0 0 0
panama city 51 69 51 70 47 0 0 0 10 0
dothan 45 68 45 70 42 0 0 0 0 0
albany 44 67 45 69 42 0 0 0 0 0
valdosta 46 67 45 70 43 50 20 0 0 0
cross city 52 69 47 72 45 30 20 0 10 0
apalachicola 52 69 51 71 49 10 10 0 10 0

Tae watches warnings advisories
Fl... High rip current risk until 1 am est Friday for coastal franklin.

Ga... None.

Al... None.

Gm... None.

Update... Dvd
near term... Barry
short term... Mcd
long term... Mcd
aviation... Scholl
marine... Mcd
fire weather... Scholl
hydrology... Mcd


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SHPF1 - SHP - Shell Point, FL 15 mi126 min NNE 5.1 G 8 60°F 1013.5 hPa
KTNF1 - Keaton Beach, FL 28 mi60 min NNE 7 G 11 58°F 1013.4 hPa (+1.1)
APXF1 - Apalachicola Reserve, FL 51 mi75 min NNE 5.1 58°F 57°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 mi65 minNNE 610.00 miOvercast58°F55°F91%1014.6 hPa

Wind History from 40J (wind in knots)
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Last 24hrCalmCalmCalmNE3NE3NE5CalmNE3E5E6NE3NE4NE6NE5NE5NE6NE6NE6NE5NE6NE6N6NE7NE8
1 day agoCalmCalmCalmSE4CalmCalmCalmNE4CalmN3NE5NE3E3NE4N10N8N5NE4CalmCalmCalmNE3NE3Calm
2 days agoE3CalmE4E3CalmNE4E3CalmCalmCalmCalmCalmCalmCalmCalmCalmE4N3NE5NE4NE7NE3E3Calm

Tide / Current Tables for Aucilla River entrance, Florida
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Aucilla River entrance
Click for Map
Thu -- 03:38 AM EST     2.99 feet High Tide
Thu -- 07:08 AM EST     Sunrise
Thu -- 10:54 AM EST     0.11 feet Low Tide
Thu -- 11:09 AM EST     Moonrise
Thu -- 05:27 PM EST     2.76 feet High Tide
Thu -- 05:36 PM EST     Sunset
Thu -- 10:00 PM EST     Moonset
Thu -- 10:46 PM EST     1.33 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.72.22.62.932.72.31.71.10.60.20.10.30.71.31.92.52.72.72.52.11.71.41.3

Tide / Current Tables for St. Marks River Entrance, Florida
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St. Marks River Entrance
Click for Map
Thu -- 03:35 AM EST     3.21 feet High Tide
Thu -- 07:08 AM EST     Sunrise
Thu -- 10:49 AM EST     0.12 feet Low Tide
Thu -- 11:10 AM EST     Moonrise
Thu -- 05:24 PM EST     2.97 feet High Tide
Thu -- 05:37 PM EST     Sunset
Thu -- 10:00 PM EST     Moonset
Thu -- 10:41 PM EST     1.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.92.42.93.23.22.92.41.81.10.60.20.10.30.81.52.12.72.92.92.62.21.81.51.5

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 (23,6,7,8)
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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.