Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Tallahassee, FL

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:23AMSunset 7:38PM Wednesday September 19, 2018 4:14 PM EDT (20:14 UTC) Moonrise 3:34PMMoonset 1:25AM Illumination 74% Phase: Waxing Gibbous; Moon at 10 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 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- 303 Pm Edt Wed Sep 19 2018
Tonight..Southwest winds 5 to 10 knots. Seas 1 foot. Dominant period 4 seconds. Protected waters smooth. Slight chance of showers and Thunderstorms after midnight.
Thursday..Southeast winds 5 to 10 knots. Seas 1 foot. Dominant period 3 seconds. Protected waters smooth.
Thursday night..East winds 10 to 15 knots...increasing to around 15 knots after midnight. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a light to moderate chop. A chance of showers and Thunderstorms after midnight.
Friday..East winds around 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters smooth to a light chop. A chance of showers and Thunderstorms in the morning.
Friday night..East winds 10 to 15 knots...increasing to around 15 knots after midnight. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a light to moderate chop. A slight chance of showers and Thunderstorms.
Saturday..East winds around 10 knots. Seas 2 to 3 feet. Protected waters smooth to a light chop. A chance of showers and Thunderstorms.
Saturday night..East winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light to moderate chop. Chance of showers and Thunderstorms.
Sunday through Monday..Southeast winds around 10 knots. Seas 1 to 2 feet. Protected waters smooth to a light chop. A chance of showers and Thunderstorms.
GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 303 Pm Edt Wed Sep 19 2018
Synopsis.. Light winds are expected across the marine area through Thursday. By Thursday night as high pressure builds across the mid atlantic, nightly increases in easterly flow will result in winds near 15 knots at times before decreasing during the day. This pattern should hold through Saturday, when the high pressure area weakens and the winds shift to a southeasterly direction.


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 191848
afdtae
area forecast discussion
national weather service tallahassee fl
248 pm edt Wed sep 19 2018

Near term [through tonight]
Deep layer ridging is building over the southeast today as a trough
pushes further eastward into the atlantic ocean. Isolated to
scattered thunderstorm coverage along and ahead of the seabreeze
front this afternoon are expected to dissipated within a few hours
of sunset. Temperatures have already hit 90 across most of the area
and may continue to warm for another hour or two before beginning
to cool. Overnight lows will be in the mid 70s.

Short term [Thursday through Friday night]
At the start of the short term period, deep layer ridging will be
in place across the tennessee valley. Through Thursday, this ridge
will shift toward the mid atlantic coast moving our winds to a
more east to east southeast direction. With overall moisture
levels lower than normal, the best rain chances will be confined
to areas of increased convergence along the afternoon sea breeze
zones. With southeasterly flow expected across the florida
panhandle on Thursday afternoon, should see best coverage there
with pops in the 40 percent range. With the large ridge
suppressing convection inland, expect it to be another hot day
with highs in the low to mid 90s.

By Friday, the ridge moves more into the western atlantic and a
weak disturbance will move across the florida peninsula. Even
though the ridge will be a little further away than on Thursday,
slightly below normal moisture will limit the overall coverage of
showers and storms. As such, rain chances are only in the 20-30
percent range for Friday. High temperatures are expected to remain
above normal in the low 90s.

Long term [Saturday through Wednesday]
A high pressure system will remain in place over the eastern
seaboard for most of the long-term period. Enhanced atmospheric
subsidence by this ridge will maintain pops relatively low in the 20
to 40 percent range. Both the GFS and ECMWF indicate a cold front
nearing our area by late next week. However, timing and intensity
of the front is very uncertain given the large forecast lead
time. MAX temps will be in the high 80s and low 90s.

Aviation [through 18z Thursday]
Isolated small storms are beginning to pop up across the tri-state
area. These storms may briefly affect some of our local terminals
(with the lowest chances near aby), but prevailing conditions are
expected to remainVFR through the period. Light northerly winds
will calm overnight and become more easterly.

Marine
Light winds are expected across the marine area through Thursday.

By Thursday night as high pressure builds across the mid atlantic,
nightly increases in easterly flow will result in winds near 15
knots at times before decreasing during the day. This pattern
should hold through Saturday, when the high pressure area weakens
and the winds shift to a southeasterly direction.

Fire weather
Relative humidity values will remain above critical levels for
the next several days. Scattered showers and thunderstorms are
expected each afternoon.

Hydrology
Rainfall over the next few days is expected to be fairly light. As
a result there are no flood concerns through 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 74 95 73 92 72 10 20 10 10 10
panama city 75 91 75 90 73 10 30 10 30 10
dothan 73 94 72 90 70 0 20 10 20 10
albany 73 95 72 92 71 0 10 10 10 10
valdosta 73 95 71 93 69 10 10 10 10 10
cross city 74 95 72 93 71 20 30 20 10 10
apalachicola 76 90 76 89 75 10 20 30 30 10

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... None.

Near term... Nguyen
short term... Godsey
long term... Dicatarina
aviation... Nguyen
marine... Godsey
fire weather... Godsey
hydrology... Godsey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SHPF1 - SHP - Shell Point, FL 28 mi81 min S 8.9 G 11 88°F 87°F1013 hPa
KTNF1 - Keaton Beach, FL 56 mi75 min WSW 8 G 8 86°F 1014.2 hPa (-2.1)72°F

Wind History for Apalachicola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tallahassee - Tallahassee International Airport, FL7 mi82 minN 010.00 miPartly Cloudy92°F72°F52%1013.5 hPa
Quincy Municipal Airport, FL19 mi80 minWNW 510.00 miPartly Cloudy91°F73°F56%1014.6 hPa

Wind History from TLH (wind in knots)
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Last 24hrS7E5SW8W6CalmNW5NW3SE3CalmCalmSW3CalmCalmCalmCalmW3CalmNW6N4CalmNW5CalmCalmSE3
1 day agoS4CalmCalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3333CalmCalm
2 days agoS8S9S6S4S3SW3SW4CalmCalmCalmCalmCalmCalmCalmCalmE4CalmSW4SW7S6S6S16
G26
NW12S6

Tide / Current Tables for St. Marks, St. Marks River, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for St. Marks, St. Marks River, Apalachee Bay, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (16,3,4,5)
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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.