Sunday, February17, 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 6:19AMSunset 5:33PM Sunday February 17, 2019 10:45 PM CST (04:45 UTC) Moonrise 4:28PMMoonset 5:38AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 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:201902181515;;105985 Fzus52 Ktae 180243 Cwftae Coastal Waters Forecast For Florida Big Bend And Eastern Panhandle National Weather Service Tallahassee Fl 943 Pm Est Sun Feb 17 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. Gmz750-752-755-770-772-775-181515- 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- 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- 943 Pm Est Sun Feb 17 2019 /843 Pm Cst Sun Feb 17 2019/
Rest of tonight..South winds 10 to 15 knots. Seas 3 to 4 feet. Dominant period 6 seconds. Protected waters a light chop. Chance of showers early in the evening, then chance of rain after midnight. Areas of fog after midnight.
Monday..Southwest winds 10 to 15 knots becoming northeast 15 knots in the afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Protected waters a moderate chop. Areas of fog in the morning. Chance of rain through the day.
Monday night..East winds 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 5 seconds. Protected waters choppy. Slight chance of rain through the night.
Tuesday..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 6 seconds. Protected waters choppy. Slight chance of rain in the morning.
Tuesday night..Southeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 5 seconds. Protected waters a moderate chop.
Wednesday..Southeast winds 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 6 seconds. Protected waters a moderate chop. Slight chance of showers.
Wednesday night..South winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Protected waters a moderate chop. Slight chance of showers.
Thursday..South winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Protected waters a moderate chop. Slight chance of showers.
Thursday night..Southeast winds 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Protected waters a light chop.
Friday..Southeast winds 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Protected waters a light chop. Slight chance of showers.
GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 943 Pm Est Sun Feb 17 2019
Synopsis..Another round of fog is expected over the marine area tonight. A cold front will move into the marine area on Monday. Offshore winds behind this front will increase to advisory levels at times on Monday afternoon and continue into Tuesday. Winds and seas will begin to decrease on Wednesday.


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 180249
afdtae
area forecast discussion
national weather service tallahassee fl
949 pm est Sun feb 17 2019

Update
Cold front still progged to enter our al counties in the next
couple of hours and move east into the central portions by
daybreak. Fog is still possible especially across the central
and eastern portions of the area. Increased pops to account for
ongoing showers in the gulf and fl panhandle. Otherwise, no other
changes made.

Prev discussion [643 pm est]
Near term [through tonight]
19 utc surface analysis shows the cold front has advanced into the
lower mississippi river valley and extends from eastern
mississippi down into western louisiana. Moderate southerly flow
ahead of this front continues to increase low level moisture
across our region, and has even led to some scattered showers
developing over the last hour.

Overnight, the cold front will continue to advance eastward toward
the region. With extensive low level moisture, expect another
round of low clouds and fog to develop in advance of the front.

Nearly all of the guidance keeps any rain chances off to the west
of the region til 06z, at which point rain will begin to move into
southeast alabama and perhaps portions of the florida panhandle.

Given that fog was not especially widespread last night, will let
the oncoming shift evaluate the need for any land or marine dense
fog advisories. The greatest risk area will be around apalachee
bay.

Short term [Monday through Tuesday night]
The short term period begins with a cold front moving through the
forecast area. With deep layer forcing decreasing with the
eastward advance of the cold front, rain chances will also
decrease with time throughout the day on Monday. The boundary is
expected to stall across the southern half of the forecast area.

Some cooler air will make it into our northern zones, but
significantly cooler temperatures are not expected.

As ridging aloft over the bahamas begins to amplify on Tuesday and
the next trough begins to move eastward out of the SW conus,
surface cyclogenesis will begin over the western gulf, and start
to lift the stalled surface boundary across our region back
northward as a warm front on Tuesday afternoon with a few showers
possible.

With the boundary lifting well north of the region on Tuesday
night, a return to warm, humid and foggy conditions can be
expected at the end of the period and then continuing into the
long term.

Outside of high temperatures on Monday, temperatures throughout
the short term period will be well above normal - particularly
through the end of the period.

Long term [Wednesday through Sunday]
An upper level ridge over the atlantic will maintain
southwesterly flow and abundant moisture at the surface across the
entire region, which will keep temperatures well above normal for
this time of the year. The aforementioned upper level ridge will
prevent disturbances that will develop over the western gulf of
mexico from propagating eastward over our cwa, which will keep
most pop chances to the north and west of the cwa. The best chance
for pops will be in our northern and western portions of our cwa
as disturbances riding over the upper level ridge may provide an
isolated heavy shower or thunderstorm. The bulk of the
precipitation associated with these disturbances will remain
across the ms, northern al, northern ga, and tn valley.

Aviation
[through 00z Tuesday]
flt conds will lower to MVFR and ifr this evening and become
widespread and remain through the overnight and into Monday. A
cold front will move across the area tonight into Monday,
switching winds from the south to the northwest and helping to
lift flt conds back toVFR. That wont occur till late in the
period and from west to east.

Marine
Another round of fog is expected over the marine area tonight. A
cold front will move into the marine area on Monday. Offshore
winds behind this front will increase to advisory levels at times
on Monday afternoon and continue into Tuesday. Winds and seas will
begin to decrease on Wednesday.

Fire weather
No red flag conditions are expected over the next several days.

Hydrology
Strong ridging will force storm systems over the next few days to
the north of the region. This will keep any threat for locally
heavy rain well to the north of our region over the tennessee
river valley. While the bulk of this heavy rain over the next
several days should miss the chattahoochee river across nrn
georgia, some rainfall into this basin could lead to elevated
river levels within our portion of the chattahoochee (and
apalachicola river) in the next few days.

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 65 71 56 70 59 40 50 10 20 20
panama city 63 67 57 69 63 40 40 20 20 0
dothan 57 61 52 59 55 60 40 10 40 30
albany 61 63 52 58 53 50 50 10 30 40
valdosta 65 71 54 66 57 30 50 10 20 30
cross city 66 78 59 74 61 20 40 20 10 20
apalachicola 65 70 57 67 62 30 40 20 10 0

Tae watches warnings advisories
Fl... High rip current risk until 10 pm est this evening for coastal
bay.

Ga... None.

Al... None.

Gm... None.

Update... Scholl
near term... Godsey
short term... Godsey
long term... Bunker
aviation... Scholl
marine... Godsey
fire weather... Scholl
hydrology... Godsey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
APCF1 - 8728690 - Apalachicola, FL 1 mi33 min S 11 G 12 67°F 64°F1014.2 hPa
SGOF1 - Tyndall AFB Tower C (N4), FL 22 mi45 min S 15 G 17 68°F 1014.7 hPa (+1.2)68°F
SHPF1 - SHP - Shell Point, FL 44 mi111 min S 7 G 9.9 65°F 62°F1014 hPa
PACF1 - 8729108 - Panama City, FL 48 mi27 min SSE 13 G 15 67°F 62°F1014.2 hPa

Wind History for Apalachicola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Apalachicola, Apalachicola, FL3 mi52 minS 70.25 miFog67°F66°F97%1014.1 hPa

Wind History from AAF (wind in knots)
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Last 24hrS5S4S7S6S6S8S6S8S6S6SE10S8S7S8S10S12S12S11S11S11S10S10S9S7
1 day agoS6S6CalmS5S5CalmSW3SW3SW6W6SW6SW6W9SW8W13W14W13SW10SW7W4SW4SW5S5SW6
2 days agoS3NW3CalmNE4NE3NE3E3CalmSE4SE5S9S10S10S9S12S10S9SW7S6S5S6SW5S6S8

Tide / Current Tables for Apalachicola, Apalachicola Bay, Florida
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Apalachicola
Click for Map
Sun -- 12:05 AM EST     1.43 feet High Tide
Sun -- 05:37 AM EST     Moonset
Sun -- 07:17 AM EST     Sunrise
Sun -- 08:57 AM EST     -0.63 feet Low Tide
Sun -- 04:27 PM EST     1.20 feet High Tide
Sun -- 04:27 PM EST     Moonrise
Sun -- 06:30 PM EST     Sunset
Sun -- 08:21 PM EST     0.97 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.41.20.90.60.3-0.1-0.3-0.6-0.6-0.5-0.30.10.50.91.11.21.21.11111.11.2

Tide / Current Tables for St. George Island, Sikes Cut, Florida
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St. George Island
Click for Map
Sun -- 05:36 AM EST     Moonset
Sun -- 07:17 AM EST     Sunrise
Sun -- 08:29 AM EST     -0.62 feet Low Tide
Sun -- 03:17 PM EST     0.86 feet High Tide
Sun -- 04:28 PM EST     Moonrise
Sun -- 06:30 PM EST     Sunset
Sun -- 07:12 PM EST     0.73 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.41.20.90.60.2-0.2-0.5-0.6-0.6-0.4-0.10.30.60.80.90.90.80.80.70.80.91.21.4

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 (23,6,7,8)
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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.