Thursday, April25, 2019 L-36.com


Marine Weather and Tides
Apalachicola, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:04AMSunset 7:16PM Wednesday April 24, 2019 11:24 PM CDT (04:24 UTC) Moonrise 12:00AMMoonset 10:13AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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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GMZ755 Expires:201904250830;;439613 Fzus52 Ktae 250124 Cwftae Coastal Waters Forecast For Florida Big Bend And Eastern Panhandle National Weather Service Tallahassee Fl 924 Pm Edt Wed Apr 24 2019 Gulf Coastal Waters From The Mouth Of The Suwannee River To Okaloosa-walton County Line Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Gmz730-750-752-755-765-770-772-775-250830- Apalachee Bay Or Coastal Waters From Keaton Beach To Ochlockonee River Fl Out To 20 Nm- Coastal Waters From Mexico Beach To Okaloosa Walton County Line Fl Out 20 Nm- Coastal Waters From Mexico Beach To Apalachicola Fl Out 20 Nm- Coastal Waters From Ochlockonee River To Apalachicola Fl Out To 20 Nm- Coastal Waters From Suwannee River To Keaton Beach Fl Out 20 Nm- Waters From Mexico Beach To Okaloosa Walton County Line Fl From 20 To 60 Nm- Waters From Apalachicola To Mexico Beach Fl From 20 To 60 Nm- Waters From Suwannee River To Apalachicola Fl From 20 To 60 Nm- 924 Pm Edt Wed Apr 24 2019 /824 Pm Cdt Wed Apr 24 2019/
Rest of tonight..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters a light chop.
Thursday..South winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters a light to moderate chop.
Thursday night..Southwest winds 15 knots. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a moderate chop. Showers and Thunderstorms likely.
Friday..West winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 3 seconds. Protected waters choppy. Rain likely in the morning.
Friday night..North winds 15 to 20 knots becoming northeast after midnight. Seas 2 to 4 feet. Dominant period 4 seconds. Protected waters choppy.
Saturday..East winds 10 to 15 knots becoming southeast 10 knots in the afternoon. Seas 2 to 3 feet. Protected waters a light to moderate chop.
Saturday night..South winds 5 to 10 knots becoming east 5 to 10 knots early in the morning. Seas 2 to 3 feet. Protected waters mostly smooth.
Sunday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Protected waters mostly smooth.
Sunday night..South winds 5 to 10 knots becoming east early in the morning. Seas 1 foot. Protected waters mostly smooth.
Monday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Protected waters a light chop.
GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 924 Pm Edt Wed Apr 24 2019
Synopsis.. Light southerly winds tonight will increase Thursday ahead of an approaching cold front. Winds and possibly seas are expected to elevate to cautionary levels in the wake of the front on Friday. Winds and seas will lower over the weekend.


7 Day Forecast for Marine Location Near Apalachicola, FL
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location: 29.71, -84.98     debug


Area Discussion for -
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Fxus62 ktae 242355
afdtae
area forecast discussion
national weather service tallahassee fl
755 pm edt Wed apr 24 2019

Update
No significant changes were made to the overnight forecast during
the evening update.

Prev discussion [739 pm edt]
Near term [through tonight]
High pressure surface and aloft remain in place. Expect extensive
mid and high level cloudiness with lows in the upper 50s to around
60.

Short term [Thursday through Friday night]
The upper level ridge will move east on Thursday as the next
shortwave and associated cold front approach from the lower
mississippi valley. This system will bring widespread rains to our
area Thursday night into Friday as well as a threat for severe
weather. SPC updated the day 2 convective outlook and has
highlighted our florida panhandle counties in a slight risk and
our SE al, along with most our SW ga and big bend counties in a
marginal risk.

Model forecast soundings and ecam guidance continue to show some
favorable parameters for strong to severe thunderstorms coming
together. Deep layer (0-6 km) shear values have been consistent
around 50 kts along with mid level lapse rates 6.5-7 c km. Mlcape
values are forecast to be between 500-1000 j kg along with surface
to 1km storm relative helicity values of 200-300 m2 s2. This
should support a few supercell thunderstorms or strong to severe
storms in line segments or clusters. The greatest severe weather
threat will be damaging thunderstorm winds and possibly a few
tornadoes.

All convection will be ending from west to east during the day on
Friday with the passage of the cold front. Highs will be in the
lower to mid 80s and lows will be around 60 to the mid 60s.

Long term [Saturday through Wednesday]
Surface high pressure and nearly zonal flow aloft will move in
over the weekend before deep layer ridging returns through the
middle of next week. Little if any rain is expected and
temperatures will be at or above seasonal levels.

Aviation
[through 00z Friday]VFR conditions are expected to prevail
through the period. Cloud cover will gradually increase from west
to east through the day on Thursday ahead of an approaching cold
front. South to southwest winds will also increase some during the
afternoon.

Marine
Light southerly winds tonight will increase Thursday ahead of an
approaching cold front. Winds and possibly seas are expected to
elevate to cautionary levels in the wake of the front on Friday.

Winds and seas will lower over the weekend.

Fire weather
High dispersions are expected tomorrow and Friday afternoons. Fog is
possible in the early morning hours.

Hydrology
The apalachicola river near blountstown is currently making its
broad crest in minor flood stage at 19 feet. The river should
gradually recede through the end of the week. Our next chance for
rain across the region will come Thursday night. However, this
system is expected to be progressive, generally keeping rainfall
amounts around 2 inches or less across the region.

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 59 84 65 85 59 0 0 80 70 0
panama city 63 76 67 81 62 0 10 80 40 0
dothan 60 81 64 82 57 0 20 80 30 0
albany 60 84 66 83 58 0 0 80 60 0
valdosta 60 86 65 84 59 0 0 60 80 0
cross city 60 85 65 83 61 0 0 30 80 0
apalachicola 63 76 68 80 63 0 0 80 60 0

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
APCF1 - 8728690 - Apalachicola, FL 1 mi36 min SE 1.9 G 2.9 70°F 72°F1016.1 hPa
SHPF1 - SHP - Shell Point, FL 44 mi90 min NW 1.9 G 2.9 67°F 70°F1015.7 hPa
PACF1 - 8729108 - Panama City, FL 48 mi36 min E 4.1 G 5.1 71°F

Wind History for Apalachicola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Apalachicola, Apalachicola, FL3 mi31 minN 010.00 miFair60°F57°F90%1016 hPa

Wind History from AAF (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmE4SE5SE6S8SW4S7S7S4S4SE3CalmCalmCalmCalmCalm
1 day agoCalmCalmCalmCalmCalmCalmNE5NE4NE4NE43SE6S6S7S8S9SW10SW10W11W6W3CalmCalmCalm
2 days agoCalmCalmN3CalmCalmNE3NE3N3N4N7N4CalmS8S8S11S11S8SW7SW8W5NW3NW4NW3Calm

Tide / Current Tables for Apalachicola, Apalachicola Bay, Florida
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Apalachicola
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Thu -- 01:30 AM EDT     Moonrise
Thu -- 03:15 AM EDT     0.01 feet Low Tide
Thu -- 07:03 AM EDT     Sunrise
Thu -- 11:05 AM EDT     1.33 feet High Tide
Thu -- 12:05 PM EDT     Moonset
Thu -- 02:53 PM EDT     1.21 feet Low Tide
Thu -- 07:24 PM EDT     1.45 feet High Tide
Thu -- 08:12 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.20.1000.20.40.70.91.21.31.31.31.31.21.21.21.31.41.41.41.31.10.9

Tide / Current Tables for St. George Island, Sikes Cut, Florida
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St. George Island
Click for Map
Thu -- 01:30 AM EDT     Moonrise
Thu -- 03:16 AM EDT     -0.06 feet Low Tide
Thu -- 07:03 AM EDT     Sunrise
Thu -- 12:05 PM EDT     Moonset
Thu -- 06:48 PM EDT     1.53 feet High Tide
Thu -- 08:12 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.20-0.1-00.10.30.50.60.80.80.90.90.911.11.31.41.51.51.51.31.20.9

Weather Map and Satellite Images
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GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for (0,6,7,8)
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Ground Weather Radar Station Tallahassee, FL
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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.