Wednesday, January24, 2018 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 7:30AMSunset 6:08PM Wednesday January 24, 2018 2:25 AM EST (07:25 UTC) Moonrise 12:10PMMoonset 12:15AM Illumination 50% Phase: First Quarter Moon; Moon at 7 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 Suwannee River To Keaton Beach Fl Out 20 Nm- 1049 Pm Est Tue Jan 23 2018
Rest of tonight..North winds 15 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters a moderate chop.
Wednesday..Northwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters a light chop.
Wednesday night..North winds 15 to 20 knots. Seas 1 to 2 feet. Dominant period 2 seconds. Protected waters a moderate chop.
Thursday..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 2 seconds. Protected waters a light chop.
Thursday night..East winds 15 knots. Seas 1 to 2 feet. Dominant period 2 seconds. Protected waters a moderate chop.
Friday..East winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light chop.
Friday night..East winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light chop.
Saturday..East winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light chop. Slight chance of rain.
Saturday night..East winds 15 knots. Seas 2 to 3 feet. Protected waters a moderate chop. Rain likely.
Sunday..Southeast winds 15 to 20 knots becoming northwest 10 to 15 knots late in the afternoon. Seas 2 to 3 feet. Protected waters a moderate chop. Rain likely.
GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 1049 Pm Est Tue Jan 23 2018
Synopsis..Northerly winds of 15 to 20 knots are expected tonight behind a cold front, and small craft should exercise caution. Winds will gradually veer to northeast by Thursday and then easterly on Friday. Periods of cautionary to advisory level winds near 20 knots are expected through the weekend. A period of heavy rain is also possible Saturday night into Sunday as an area of low pressure moves across the northeast gulf.

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 240536
afdtae
area forecast discussion
national weather service tallahassee fl
1236 am est Wed jan 24 2018

Aviation [through 06z Thursday]
Vfr through the period with light northwest winds.

Prev discussion [610 pm est]
Near term [through tonight]
At 18z, the cold front was just east of a line from valdosta, ga
to perry, fl. Cold air advection will continue into the overnight
hours, allowing lows to dip into the 30s tonight, with the
coolest temperatures in southeast alabama.

Short term [Wednesday through Thursday night]
Dry weather will prevail through the short term. An upper level
shortwave will pass north of the area Wednesday night with little
impact given the dry airmass in place. High pressure centered
across the lower ms valley on Wednesday will slide eastward to
the carolinas by Thursday night. Afternoon high temperatures are
expected to range from the upper 50s to mid 60s across the area
with overnight lows mainly in the 30s.

Long term [Friday through Tuesday]
Some model disagreement is evident this weekend with the 12z gfs
tracking an area of low pressure farther south over the northeast
gulf on Saturday night into Sunday compared to the 12z ECMWF and
canadian. This results in the heaviest rainfall staying just
offshore in the gfs, with the ECMWF and canadian models showing
much needed moderate to heavy rainfall farther to the north
across inland areas. The 12z GFS ensemble mean is a bit heavier
than the GFS across inland areas, and the 12z GFS may be somewhat
of a southern outlier. Rain chances look likely for Saturday night
into Sunday. Even if a more northerly low track pans out,
instability looks very marginal and thunderstorm chances appear to
be confined to offshore at this time. Clearing is expected behind
the system on Monday with near average temperatures.

Marine
Northerly winds of 15 to 20 knots are expected tonight behind a
cold front, and small craft should exercise caution. Winds will
gradually veer to northeast by Thursday and then easterly on
Friday. Periods of cautionary to advisory level winds near 20
knots are expected through the weekend. A period of heavy rain is
also possible Saturday night into Sunday as an area of low
pressure moves across the northeast gulf.

Fire weather
A drier airmass has filtered into the tri-state area behind a cold
frontal passage this morning. Near critical afternoon relative
humidity values are possible Thursday but winds will preclude any
fire weather concerns.

Hydrology
Some much needed rainfall is likely on Saturday night into Sunday
as an area of low pressure moves across the northeast gulf. While
there remains some uncertainty with rainfall amounts, there is
potential for the system to produce widespread 1-2 inch amounts
with locally heavier totals. Should this occur, it would be
beneficial rainfall with the ongoing drought conditions.

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 60 33 63 35 66 0 0 0 0 0
panama city 59 38 61 41 63 0 0 0 0 0
dothan 58 31 62 35 63 0 0 0 0 0
albany 59 33 61 34 64 0 0 0 0 0
valdosta 58 34 61 36 65 0 0 0 0 0
cross city 61 34 63 36 68 0 0 0 0 0
apalachicola 58 38 60 41 62 0 0 0 0 0

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... None.

Near term... Nguyen
short term... Dvd
long term... Dvd
aviation... Barry
marine... Dvd
fire weather... Scholl
hydrology... Dvd


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SHPF1 - SHP - Shell Point, FL 28 mi92 min N 7 G 8.9 50°F 1021 hPa
KTNF1 - Keaton Beach, FL 56 mi26 min N 4.1 G 7 49°F 1021.5 hPa (+1.1)
APXF1 - Apalachicola Reserve, FL 57 mi101 min NNW 8 51°F 38°F

Wind History for Apalachicola, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tallahassee - Tallahassee International Airport, FL7 mi33 minN 510.00 miFair48°F34°F58%1021.5 hPa
Quincy Municipal Airport, FL19 mi31 minN 510.00 miFair46°F32°F57%1022 hPa

Wind History from TLH (wind in knots)
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Last 24hrS5S7S4CalmCalmCalmNW15NW10NW10W10W13W11W9
G17
NW11NW9W44NW4CalmNW5NW7N8N6N5
1 day agoCalmCalmCalmE5E4SE4SE3SE4S13S11S9S11S10SE7S6S8S5SW4S7S5S4SE6S7S8
2 days agoCalmCalmCalmCalmCalmCalmCalmSE64SE6E5CalmE4E44E3S4CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for St. Marks, St. Marks River, Florida
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St. Marks
Click for Map
Wed -- 12:15 AM EST     Moonset
Wed -- 01:48 AM EST     0.30 feet Low Tide
Wed -- 07:31 AM EST     Sunrise
Wed -- 07:32 AM EST     2.17 feet High Tide
Wed -- 12:10 PM EST     Moonrise
Wed -- 01:45 PM EST     0.60 feet Low Tide
Wed -- 05:20 PM EST     First Quarter
Wed -- 06:06 PM EST     Sunset
Wed -- 07:25 PM EST     2.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.40.30.50.91.41.92.12.121.71.30.90.70.60.81.31.92.42.62.62.421.5

Tide / Current Tables for St. Marks, St. Marks River, Apalachee Bay, Florida
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St. Marks
Click for Map
Wed -- 12:15 AM EST     Moonset
Wed -- 01:48 AM EST     0.29 feet Low Tide
Wed -- 07:31 AM EST     Sunrise
Wed -- 07:32 AM EST     2.15 feet High Tide
Wed -- 12:10 PM EST     Moonrise
Wed -- 01:44 PM EST     0.58 feet Low Tide
Wed -- 05:20 PM EST     First Quarter
Wed -- 06:06 PM EST     Sunset
Wed -- 07:25 PM EST     2.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.40.30.50.91.41.92.12.121.61.20.90.60.60.81.31.92.32.62.62.421.5

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 (2,6,7,8)
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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.