Thursday, February20, 2020
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Marine Weather and Tides
Apalachicola, FL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:16AMSunset 5:35PM Thursday February 20, 2020 6:35 PM CST (00:35 UTC) Moonrise 5:26AMMoonset 3:58PM Illumination 8% Phase: Waning Crescent; Moon at 27 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:202002210815;;837932 Fzus52 Ktae 201939 Cwftae Coastal Waters Forecast For Florida Big Bend And Eastern Panhandle National Weather Service Tallahassee Fl 239 Pm Est Thu Feb 20 2020 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. Gmz730-755-765-775-210815- Apalachee Bay Or Coastal Waters From Keaton Beach To Ochlockonee River Fl Out To 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 Suwannee River To Apalachicola Fl From 20 To 60 Nm- 239 Pm Est Thu Feb 20 2020
.small craft advisory in effect from 1 am est Friday through Saturday morning...
Tonight..Northwest winds 10 to 15 knots becoming north 15 to 20 knots late in the evening, then increasing to 25 knots after midnight. Seas 1 to 2 feet building to 4 to 6 feet with occasional seas up to 8 feet. Dominant period 4 seconds after midnight. Protected waters choppy. Patchy fog in the evening. Chance of showers and slight chance of Thunderstorms in the evening.
Friday..North winds 20 to 25 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 4 seconds. Protected waters choppy.
Friday night..Northeast winds 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 4 seconds. Protected waters choppy.
Saturday..Northeast winds 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Protected waters a moderate chop.
Saturday night..Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a light chop.
Sunday..Northeast winds 10 knots. Seas 1 to 2 feet. Protected waters a light chop.
Sunday night..East winds 10 knots. Seas 1 to 2 feet. Protected waters a light chop.
Monday..Southeast winds 15 to 20 knots. Seas 2 to 3 feet. Protected waters a moderate chop. Chance of showers through the day. Slight chance of Thunderstorms in the afternoon.
Monday night..South winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Protected waters a moderate chop. Chance of showers in the evening. Slight chance of Thunderstorms through the night. Showers likely after midnight.
Tuesday..Southwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet subsiding to 2 to 3 feet in the afternoon. Protected waters a light chop. Chance of rain.
GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 239 Pm Est Thu Feb 20 2020
Synopsis.. Winds and seas will increase dramatically this evening as low pressure and an associated cold front move through. Advisory level conditions will develop and persist into Friday morning before a slow improvement begins. Boating conditions then look favorable for the second half of the weekend into Monday as high pressure builds in.


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 202318 AFDTAE

Area Forecast Discussion National Weather Service Tallahassee FL 618 PM EST Thu Feb 20 2020

AVIATION. [Through 00Z Saturday]

Widespread MVFR/IFR conditions will continue through tonight with LIFR conditions at times. Rain showers will diminish overnight with a return to VFR conditions Friday. Northwest winds on Friday will gust to around 20 knots.

PREV DISCUSSION [236 PM EST].

NEAR TERM [Tonight and Friday].

The main story will be locally heavy rainfall through this evening northwest of Dothan and Albany, followed by much colder temperatures.

A frontal boundary along and north of the I-10 corridor will lift ample moisture, with rainfall across this area gradually diminishing from west to east around midnight. Some locally heavy rainfall of 1 to 1.5 inches is expected northwest of Albany and Dothan, leading to ponding of water in low lying areas.

Patchy fog is also likely mainly north of I-10 early into tonight.

Temperatures will be 20-25 degrees colder compared to last night, with lows in the mid-30s far north to mid-40s along coastal areas. High temperatures on Friday will only be in the 50s, around 15 degrees below normal. It will feel even colder with considerable cloudiness to start the day and northwest wind gusts up to around 20 mph.

SHORT TERM [Friday Night Through Sunday Night].

The weekend will be dry and feature a warming trend as heights aloft rise and high pressure at the surface shifts east. Fairly widespread frost is likely for inland locations on Saturday Morning.

LONG TERM [Monday Through Thursday].

The next upper level low and associated cold front will approach Monday and slowly cross the region into Tuesday. Decent amount of moisture and lift with this system so will continue with high PoPs across the area. Looks like enough instability for a little thunder by late Monday although severe chances look low right now. Pattern looks to remain fairly progressive so drying should return by the middle of next week with another return to chilly temperatures.

MARINE.

Winds and seas will increase dramatically this evening as low pressure and an associated cold front move through. Advisory level conditions will develop and persist into Saturday morning before a slow improvement begins. Boating conditions then look favorable for the second half of the weekend into Monday as high pressure builds in.

FIRE WEATHER.

The wet pattern will diminish overnight as a front pushed through the region. Drier conditions prevail on Friday, with strong northeasterly transport winds leading to high dispersions for portions of southwest GA in the morning, then becoming widespread through the afternoon. Although min RH values are forecast to be in the 20s and 30s on Sat, red-flag conditions are not expected. 20-ft winds will remain light and available fuel moisture above critical levels.

HYDROLOGY.

Moderate to locally heavy rainfall is likely into tonight along a frontal passage. The highest rainfall amounts (about 1 to 2 inches) are expected on the northern fringe or our forecast area. Another round of rain will be possible Monday into Tuesday. 7 day rainfall amounts show a little over 2 inches for parts of SE AL and SW GA with less than an inch farther south. This could push a few rivers into Minor flood stage by next week (especially along the Flint). The Apalachicola remains in minor flood and looks to remain there for the foreseeable future.

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 41 54 31 60 34 / 90 0 0 0 0 Panama City 43 56 35 59 39 / 50 0 0 0 0 Dothan 37 51 31 57 33 / 50 0 0 0 0 Albany 36 50 29 57 32 / 90 0 0 0 0 Valdosta 40 52 29 59 33 / 90 0 0 0 0 Cross City 43 57 31 63 37 / 70 0 0 0 0 Apalachicola 45 55 35 58 42 / 70 0 0 0 0

TAE WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AL . None. GM . Small Craft Advisory from 1 AM Friday to 10 AM EST Saturday for Apalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River FL out to 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 Suwannee River to Apalachicola FL from 20 to 60 NM.

Small Craft Advisory until 9 AM CST Saturday for Coastal waters from Mexico Beach to Apalachicola FL out 20 NM-Coastal waters from Mexico Beach to Okaloosa Walton County Line FL out 20 NM-Waters from Apalachicola to Mexico Beach FL from 20 to 60 NM-Waters from Mexico Beach to Okaloosa Walton County Line FL from 20 to 60 NM.



NEAR TERM . LF SHORT TERM . Johnstone LONG TERM . Johnstone AVIATION . Humphreys MARINE . Johnstone FIRE WEATHER . IG HYDROLOGY . Johnstone


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
APCF1 - 8728690 - Apalachicola, FL 1 mi47 min SE 5.1 G 7 64°F1016.1 hPa
APXF1 - Apalachicola Reserve, FL 8 mi110 min SE 4.1 1017 hPa
SGOF1 - Tyndall AFB Tower C (N4), FL 22 mi35 min SSW 11 G 11 69°F 1016.2 hPa (-1.0)69°F
SHPF1 - SHP - Shell Point, FL 44 mi101 min ESE 4.1 G 5.1 64°F 1016.1 hPa
PACF1 - 8729108 - Panama City, FL 48 mi47 min NNE 13 G 22 65°F

Wind History for Apalachicola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KAAF

Wind History from AAF (wind in knots)
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Tide / Current Tables for Apalachicola, Apalachicola Bay, Florida
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Apalachicola
Click for Map
Thu -- 05:26 AM EST     Moonrise
Thu -- 07:15 AM EST     Sunrise
Thu -- 08:50 AM EST     -0.43 feet Low Tide
Thu -- 03:58 PM EST     Moonset
Thu -- 04:16 PM EST     1.14 feet High Tide
Thu -- 06:32 PM EST     Sunset
Thu -- 08:16 PM EST     0.92 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.21.10.90.60.40.1-0.2-0.4-0.4-0.3-0.10.30.60.91.11.11.1110.90.911.1

Tide / Current Tables for St. George Island, 12th St. W (Bayside), St. George Sound, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (19,4,5,8)
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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 numerous 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.