Sunday, September23, 2018 L-36.com


Marine Weather and Tides
Jacksonville Beach, 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 7:13AMSunset 7:21PM Sunday September 23, 2018 3:58 PM EDT (19:58 UTC) Moonrise 5:54PMMoonset 4:45AM 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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AMZ452 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 329 Pm Edt Sun Sep 23 2018
Tonight..East winds around 10 knots. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Monday..East winds 10 to 15 knots. Seas 3 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms in the morning.
Monday night..East southeast winds 10 to 15 knots becoming east around 5 knots in the morning. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the evening.
Tuesday..East winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters smooth.
Tuesday night..Southeast winds 5 to 10 knots becoming south after midnight. Seas 2 to 4 feet. Inland waters a light chop.
Wednesday..South southeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Wednesday night..South winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Thursday..South winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Thursday night..South winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Friday..South winds 5 to 10 knots becoming southeast in the afternoon. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 329 Pm Edt Sun Sep 23 2018
Synopsis.. High pressure will be north of area waters through tonight. A wave of low pressure will move northwest through the western atlantic Monday into Tuesday. High pressure will build to the northeast mid week, as a front moves into the southeastern us and stalls.


7 Day Forecast for Marine Location Near Jacksonville Beach, FL
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location: 30.29, -81.36     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 231852
afdjax
area forecast discussion
national weather service jacksonville fl
252 pm edt Sun sep 23 2018

Near term through Monday ...

high pressure will be northeast of the region through tonight. This
will continue the moist onshore flow pattern with scattered showers
and possibility for embedded thunderstorms moving inland this
afternoon. This activity will dissipate with loss of diurnal heating
this evening. A wave of low pressure will move northwest into the
western atlantic Monday afternoon. Between the high and the
approaching the wave, an increased pressure gradient develops over
the coastal waters, which will enhance the onshore flow. This is
expected to increase precipitation potential late tonight through
Monday.

Short term Monday night through Thursday ...

for Monday night into Tuesday, high pressure will be to the north,
with a wave of low pressure to the east over the western atlantic.

This wave will disrupt the moist onshore flow pattern, and should be
far enough away that a lower chance for convection is anticipated
for Tuesday. Highs Tuesday will range from the upper 80s along the
coast to the lower 90s inland.

High pressure will build to the east northeast Tuesday night into
Wednesday, as a cold front approaches from the northwest. This front
will stall just to the northwest Thursday, with the high remaining
to the east northeast. This pattern will result in a warm southerly
flow for Wednesday into Thursday scattered diurnal convection and
highs in the lower 90s.

Long term Thursday night through Sunday ...

remnants of stalled frontal boundary will linger across SE ga
through at least Saturday, remaining a focus for additional
convection this period. Otherwise, high pressure will build to the
north northeast this period resulting in another onshore pattern for
the weekend.

Temperatures will be above normal Friday, then trend closer to
normal for Sunday.

Marine
High pressure will be north of area waters through tonight. A
wave of low pressure will move northwest through the western
atlantic Monday into Tuesday. High pressure will build to the
northeast mid week, as a front moves into the southeastern us and
stalls.

Rip currents: high risk today NE fl. Moderate risk today SE ga.

Moderate risk Monday.

Aviation
Sct to broken cumulus rest of today with a few showers expected but for
most part, these showers will be west of the TAF sites. Winds will
be east at about 10 kt into the evening then becoming light overnight.

Like a broken record, a few showers are expected along the coast
later tonight, coming in off the warm atlantic waters, with perhaps brief
cig vsby restrictions but given the low chances will keep at vcsh at
this time.

Preliminary point temps pops
Amg 72 87 72 92 20 60 10 20
ssi 78 84 76 88 30 40 20 10
jax 74 87 74 90 30 40 10 10
sgj 78 85 75 87 30 40 10 10
gnv 72 89 72 92 10 40 10 20
ocf 72 90 72 92 10 40 10 40

Jax watches warnings advisories
Fl... High rip current risk until 8 pm edt this evening for coastal
duval-coastal flagler-coastal nassau-coastal st. Johns.

Ga... None.

Am... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 8 mi40 min 85°F 72°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 8 mi40 min E 7 G 11 84°F 85°F1016.6 hPa
BLIF1 11 mi40 min E 8 G 12 87°F 1017.1 hPa73°F
DMSF1 12 mi40 min 87°F
FRDF1 - 8720030 - Fernandina Beach, FL 27 mi40 min ESE 4.1 G 9.9 88°F 85°F1017.1 hPa
41112 - Offshore Fernandina Beach, FL (132) 29 mi58 min 86°F2 ft
SAUF1 - St. Augustine, FL 30 mi58 min E 7 G 8 83°F 83°F1016.9 hPa (-1.7)
RCYF1 35 mi40 min 87°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 44 mi73 min ESE 5.1 85°F 1017 hPa73°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mayport Naval Station - Adm David L. McDonald Field, FL8 mi3.1 hrsE 810.00 miMostly Cloudy88°F71°F57%1017.6 hPa
Jacksonville Craig Municipal Airport, FL9 mi65 minESE 810.00 miFair87°F70°F57%1016.2 hPa
Jacksonville Naval Air Station, FL17 mi2.1 hrsESE 810.00 miPartly Cloudy90°F69°F50%1016.4 hPa
Northeast Florida Regional Airport, FL22 mi62 minE 710.00 miA Few Clouds85°F72°F65%1016.6 hPa
Jacksonville International Airport, FL22 mi62 minESE 910.00 miA Few Clouds89°F69°F52%1015.7 hPa

Wind History from NRB (wind in knots)
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Last 24hrE10E9E10E8E10E10E9E11E8SE6SE9SE7SE5SE5CalmCalmW3CalmCalmSW3SE55E7E8
1 day agoE11NE12E11NE13NE11E11E12E9E7E8E7E5--SW3CalmSE5--NW5CalmN3NE5E8E8E9
2 days agoNE11NE13E11E11E11NE12E12E14E13E12E12----------SE6SE7SE6E7SE7----E10

Tide / Current Tables for Jacksonville Beach, 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. Johns River Entrance, Florida Current
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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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (15,3,4,5)
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Ground Weather Radar Station Jacksonville, FL
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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.