Wednesday, June28, 2017 L-36.com


Marine Weather and Tides
Tallahassee, 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 Wednesday June 28, 2017 6:54 PM EDT (22:54 UTC) Moonrise 10:29AMMoonset 11:34PM Illumination 24% 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- Waters From Apalachicola To Destin Fl From 20 To 60 Nm- Waters From Suwannee River To Apalachicola Fl From 20 To 60 Nm- 248 Pm Edt Wed Jun 28 2017
Tonight..Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters a light to moderate chop. A chance of showers and Thunderstorms.
Thursday..Southeast winds around 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters smooth to a light chop. Showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.
Thursday night..Southeast winds around 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters smooth to a light chop. A slight chance of showers and Thunderstorms in the evening.
Friday..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters smooth. A chance of showers and Thunderstorms in the morning, then a slight chance of showers and Thunderstorms in the afternoon.
Friday night..Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters smooth.
Saturday through Monday..Southwest to west 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 248 Pm Edt Wed Jun 28 2017
Synopsis..Winds and seas will remain low through the next several days. After high rain chances on Thursday and Friday...expect a return to more scattered showers and Thunderstorms later in the weekend.

7 Day Forecast for Marine Location Near Tallahassee, FL
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location: 30.46, -84.25     debug


Area Discussion for -
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Fxus62 ktae 281847
afdtae
area forecast discussion
national weather service tallahassee fl
247 pm edt Wed jun 28 2017

Near term [through tonight]
Showers and thunderstorms will continue to develop across the
florida panhandle and big bend through the afternoon before
diminishing after sunset. A weak shortwave aloft will move northeast
into the panhandle overnight. This will lead to an increase in
showers over the coastal waters and panhandle coast after midnight.

Short term [Thursday through Friday night]
Model guidance continues to be in good agreement in the
development of offshore convection early in the day on Thursday
and then spreading inland across the florida panhandle and
perhaps into southeastern alabama by midday Thursday as an
approaching upper disturbance moves through the region. Still some
differences in the details with respect to afternoon storms. It's
possible that the cloud cover from the morning convection
effectively stabilizes southeastern alabama and they see little
additional storms through the afternoon. This does not seem to be
the case further east into southwestern georgia and into the
florida big bend where cloud cover should be more sparse, at least
early in the day. Rain chances are generally in the 60 to 70
percent range across the area. With all the cloud cover,
temperatures will be cooler than normal for this time of year,
generally in the low to mid 80s.

Model guidance shows the disturbance moving northeast of the
region by daybreak on Friday with the mid level ridge beginning to
build westward across the florida peninsula. This should put our
region in a more typical summertime pattern dominated by the daily
sea breeze circulation. With southwesterly flow around 10 kt,
this should yield fairly decent coverage of showers and
thunderstorms Friday afternoon. Will keep pops a little higher
than climatology, around 60 percent inland. Since convection
should have a later start time, expect temperatures to be a little
warmer, generally in the upper 80s to near 90 degrees.

Long term [Saturday through Wednesday]
At the start of the period, ridging will continue building over
the florida peninsula on Saturday and then into the eastern gulf
of mexico on Sunday. Our region will be on the northern periphery
of this ridge, which will provide some convective suppression
during the afternoon hours. However, both the GFS and euro do show
weak shortwaves moving through the tennessee river valley sun-tue
flattening out the northward extension of the ridge. As a result,
expect thunderstorm coverage each day through Tuesday to be near
normal levels for this time of year, which is about 40 percent.

That being said, there is some potential for a drier stretch if
the euro verifies, as it shows a significantly drier airmass
across the region than the 28 12z gfs. One additional side effect
of the ridge will be warmer than normal high temperatures sun-
tues, where some of the guidance suggests highs in the mid to
possibly even upper 90s. This would also result in high heat
indices easily in the triple digits.

By Wednesday, the mid level ridge breaks down and an approaching
trough will lead to increasing afternoon evening rain chances at
the end of the forecast period and slightly cooler afternoon
temperatures.

Aviation [through 18z Thursday]
Showers and thunderstorms will impact ktlh, kecp, and kvld through
the afternoon before diminishing this evening. Additional showers
and thunderstorms will likely begin to impact kecp towards
morning. Otherwise, winds will remain light, withVFR conditions
prevailing outside of the storms.

Marine
Winds and seas will remain low through the next several days.

After high rain chances on Thursday and Friday, expect a return to
typical scattered showers and thunderstorms later in the weekend.

Fire weather
Red flag conditions are not expected over the next few days with
rh criteria well above critical thresholds. While dispersion
indices will be on the low side, they appear to stay just above 20
across the florida counties.

Hydrology
All area rivers have crested below flood stage across the region
after last week's rainfall. There is some potential for locally
heavy rainfall across the area on Thursday and into Friday as the
disturbance moves through the region. The primary impact would be
localized flooding limited mainly to urban areas. However, the
overall flood threat remains low.

Preliminary point temps pops
Tallahassee 72 85 73 89 74 40 60 20 60 20
panama city 76 83 76 86 77 50 80 20 50 10
dothan 72 82 72 89 73 40 60 30 60 30
albany 72 84 72 90 73 30 70 40 60 40
valdosta 72 86 72 89 73 30 70 40 60 30
cross city 73 89 73 91 74 40 50 20 40 20
apalachicola 77 85 77 87 76 40 70 20 40 10

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... None.

Near term... Camp
short term... Godsey
long term... Godsey
aviation... Camp
marine... Godsey
fire weather... Fieux
hydrology... Godsey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SHPF1 - SHP - Shell Point, FL 28 mi120 min N 8.9 G 11 80°F 1017.4 hPa
KTNF1 - Keaton Beach, FL 56 mi54 min N 12 G 15 76°F 1017 hPa (-0.6)
APXF1 - Apalachicola Reserve, FL 57 mi69 min E 7 83°F 77°F

Wind History for Apalachicola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tallahassee - Tallahassee International Airport, FL7 mi61 minN 010.00 miLight Rain79°F77°F94%1017.4 hPa

Wind History from TLH (wind in knots)
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Last 24hrE34CalmCalmE7E4CalmCalmNE3NE4CalmE5NE4NE7E7NE6NE7E10E9NE5E6SE7SE5Calm
1 day agoN7N6NE3CalmCalmCalmCalmS3SE4CalmE3E5E3SE4CalmCalmCalmCalmCalmNE10
G26
E6S7CalmCalm
2 days agoW4CalmNW5CalmCalmW4NW3NW3NW3N4N3CalmCalmCalmNW5N4NW4CalmCalm3N95N6N6

Tide / Current Tables for St. Marks, St. Marks River, Florida
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St. Marks
Click for Map
Wed -- 01:05 AM EDT     -0.05 feet Low Tide
Wed -- 06:37 AM EDT     Sunrise
Wed -- 07:06 AM EDT     3.01 feet High Tide
Wed -- 11:29 AM EDT     Moonrise
Wed -- 12:54 PM EDT     1.33 feet Low Tide
Wed -- 06:12 PM EDT     3.33 feet High Tide
Wed -- 08:42 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-00.10.71.42.22.832.92.62.21.71.41.31.522.63.13.33.32.92.41.81.2

Tide / Current Tables for St. Marks, St. Marks River, Apalachee Bay, Florida
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St. Marks
Click for Map
Wed -- 01:06 AM EDT     -0.06 feet Low Tide
Wed -- 06:37 AM EDT     Sunrise
Wed -- 07:07 AM EDT     3.00 feet High Tide
Wed -- 11:29 AM EDT     Moonrise
Wed -- 12:54 PM EDT     1.32 feet Low Tide
Wed -- 06:13 PM EDT     3.31 feet High Tide
Wed -- 08:42 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-0.10.10.61.42.22.832.92.62.21.71.41.31.522.63.13.33.22.92.41.81.2

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 (18,4,5,8)
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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.