Tuesday, March19, 2019 L-36.com


Marine Weather and Tides
Horseshoe Beach, 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 7:40AMSunset 7:48PM Tuesday March 19, 2019 6:44 PM EDT (22:44 UTC) Moonrise 5:29PMMoonset 5:52AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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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GMZ775 Expires:201903200715;;613411 Fzus52 Ktae 191839 Cwftae Coastal Waters Forecast For Florida Big Bend And Eastern Panhandle National Weather Service Tallahassee Fl 239 Pm Edt Tue Mar 19 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. Gmz752-755-772-775-200715- 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 Apalachicola To Mexico Beach Fl From 20 To 60 Nm- Waters From Suwannee River To Apalachicola Fl From 20 To 60 Nm- 239 Pm Edt Tue Mar 19 2019 /139 Pm Cdt Tue Mar 19 2019/
.small craft advisory in effect through Wednesday morning...
Tonight..Northeast winds 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 4 seconds. Protected waters choppy.
Wednesday..Northeast winds 15 to 20 knots becoming north 10 knots late in the afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 5 seconds. Protected waters a moderate chop.
Wednesday night..North winds 10 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Protected waters a light chop.
Thursday..Northwest winds 10 to 15 knots becoming west 15 to 20 knots late in the afternoon. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a moderate chop.
Thursday night..North winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Protected waters a moderate chop.
Friday..Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Protected waters a light chop.
Friday night..Northwest winds 10 to 15 knots becoming north 10 to 15 knots early in the morning. Seas 1 to 2 feet. Protected waters a light chop.
Saturday..East winds 10 knots becoming southeast 5 to 10 knots late in the afternoon. Seas 1 to 2 feet. Protected waters a light chop.
Saturday night..South winds 5 to 10 knots becoming east 5 to 10 knots in the late evening. Seas 1 foot or less. Protected waters mostly smooth.
Sunday..Southeast winds 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 239 Pm Edt Tue Mar 19 2019
Synopsis.. The small craft advisory has been extended for the waters from mexico beach east out to 60 nautical miles until 10 am Wednesday. While a brief lull in the northeast winds is expected late this afternoon and early this evening, they will increase to around 20 knots tonight across the advisory area, along with seas from 4 to 6 feet, occasionally up to 8 feet. Looking ahead, a cold frontal passage may lead to at least cautionary conditions late Thursday into Thursday night as winds become northwest. A return to fair boating conditions is expected this weekend as winds shift to an easterly direction and decrease along with seas.


7 Day Forecast for Marine Location Near Horseshoe Beach, FL
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location: 29.2, -83.95     debug


Area Discussion for -
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Fxus62 ktae 191816
afdtae
area forecast discussion
national weather service tallahassee fl
216 pm edt Tue mar 19 2019

Near term [through tonight]
Dry weather with low temperatures several degrees below normal.

High clouds depart this evening with the flow aloft becoming
increasingly anticyclonic, leading to the development of a
weak subsidence inversion. Some low clouds will skirt under
this feature in the northeast flow overnight, especially to
the south of i-10.

Short term [Wednesday through Thursday night]
A dry period of weather in store with moderating temperatures.

There will be a couple short wave disturbances in the tennessee
valley that will lead to a dry cold frontal passage on Thursday.

Expect the aforementioned subsidence inversion to be maintained,
with just some fair weather clouds below on Wed and thu. Winds
northeast on Wed will back to the northwest and increase on thu,
but only gust up to around 15 mph. In spite of the moderation
in temperatures, daily averages will remain below normal, with
a greater contribution from overnight lows.

Long term [Friday through Tuesday]
Dry thru this weekend with increasing precip chances thereafter.

A general, deep layer northwest flow will prevail on Fri and sat,
promoting a rather dry air mass. Thereafter, the flow veers to
the southwest as a broad long wave trough extends from the great
plains into hudson's bay. This pattern favors increasing clouds
on Sunday and Monday. A stronger shortwave impulse will amplify
the trough as it rounds the base from the great plains toward
the florida peninsula early next week. Both the GEFS and ecens
differ in the position of the surface low, with considerable
dispersion noted in the individual members. Wpc takes the low
across north georgia by Tue morning with a cold front on our
door step at that time. This would favor greater moisture and
lift remaining just northwest of the area, where the extended
cips analogs keep the heaviest precip. Also have added a slight
chance of thunder into the forecast with the passage of the
cold front. Overall, temperatures near normal during this period.

Aviation
[through 18z Wednesday]
vfr with northeast winds at or below 10 kts through the period.

Marine
The small craft advisory has been extended for the waters from
mexico beach east out to 60 nautical miles until 10 am Wednesday.

While a brief lull in the northeast winds is expected late this
afternoon and early this evening, they will increase to around 20
knots tonight across the advisory area, along with seas from 4 to
6 feet, occasionally up to 8 feet. Looking ahead, a cold frontal
passage may lead to at least cautionary conditions late Thursday
into Thursday night as winds become northwest. A return to fair
boating conditions is expected this weekend as winds shift to an
easterly direction and decrease along with seas.

Fire weather
Relative humidity values over the next couple of days will fall
to around 30 percent during the afternoons, with winds remaining
at or below 15 mph. Aside from high dispersions the next couple
of days, all indices are expected to remain below critical fire
weather thresholds.

Hydrology
Expect dry weather through this weekend. The next chance for rain
will be early next week. Most local rivers are below action stage.

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 45 70 44 73 45 0 0 0 0 0
panama city 49 68 51 69 50 0 0 0 0 0
dothan 42 66 44 67 44 0 0 0 0 0
albany 41 66 44 68 44 0 0 0 0 0
valdosta 44 68 44 72 44 0 0 0 0 0
cross city 50 71 46 72 46 10 0 0 0 0
apalachicola 50 68 51 69 50 0 0 0 0 0

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... Small craft advisory until 10 am edt 9 am cdt Wednesday for
coastal waters from ochlockonee river to apalachicola fl
out to 20 nm-coastal waters from mexico beach to
apalachicola fl out 20 nm-waters from suwannee river to
apalachicola fl from 20 to 60 nm-waters from apalachicola
to mexico beach fl from 20 to 60 nm.

Near term... Lf
short term... Lf
long term... Lf
aviation... Lf
marine... Lf
fire weather... Lf
hydrology... Mcd


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KTNF1 - Keaton Beach, FL 47 mi44 min NE 8 G 11 64°F 1021.2 hPa (-0.0)51°F
CDRF1 - Cedar Key, FL 49 mi44 min NE 13 G 16 65°F 1019.6 hPa (-0.8)55°F
SGOF1 - Tyndall AFB Tower C (N4), FL 50 mi44 min NNE 13 G 14 63°F 1021.1 hPa (-1.0)43°F

Wind History for Cedar Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cross City Airport, FL54 mi69 minNE 12 G 1910.00 miMostly Cloudy64°F52°F65%1021 hPa

Wind History from CTY (wind in knots)
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Last 24hrN5N5N4CalmCalmCalmCalmN6N7N7N9N6N6NE5N8NE12NE13
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1 day agoN9N9NE5NE6NE8NE4N5N5N4N5N5N4N4N5N6NE9NE12
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2 days agoNE3N7N4N7NE5N6N5N5N4N5N5N5NE6N10N7NE5NE8NE9NE8NE8NE6NE7NE7N10

Tide / Current Tables for Pepperfish Keys, Florida
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Pepperfish Keys
Click for Map
Tue -- 01:01 AM EDT     3.26 feet High Tide
Tue -- 06:49 AM EDT     Moonset
Tue -- 07:38 AM EDT     Sunrise
Tue -- 07:59 AM EDT     -0.67 feet Low Tide
Tue -- 02:11 PM EDT     3.22 feet High Tide
Tue -- 06:25 PM EDT     Moonrise
Tue -- 07:44 PM EDT     Sunset
Tue -- 08:07 PM EDT     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.13.33.12.61.80.90.1-0.5-0.7-0.40.21.22.12.93.23.12.61.91.20.60.40.61.11.9

Tide / Current Tables for Suwannee River entrance, Florida
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Suwannee River entrance
Click for Map
Tue -- 12:55 AM EDT     3.29 feet High Tide
Tue -- 06:48 AM EDT     Moonset
Tue -- 07:37 AM EDT     Sunrise
Tue -- 07:53 AM EDT     -0.67 feet Low Tide
Tue -- 02:05 PM EDT     3.26 feet High Tide
Tue -- 06:24 PM EDT     Moonrise
Tue -- 07:43 PM EDT     Sunset
Tue -- 08:01 PM EDT     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.13.33.12.51.70.80-0.5-0.7-0.40.31.32.233.33.12.61.81.10.60.40.61.22

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.
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Wind Forecast for (18,4,5,8)
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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.