Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Jacksonville, 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 6:50AMSunset 5:31PM Tuesday November 13, 2018 9:14 PM EST (02:14 UTC) Moonrise 11:57AMMoonset 10:39PM Illumination 35% Phase: Waxing Crescent; Moon at 6 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 Fernandina Beach To St. Augustine Fl Out 20 Nm- Waters From Fernandina Beach To St. Augustine Fl From 20 To 60 Nm- 221 Pm Est Tue Nov 13 2018
.small craft exercise caution tonight...
.small craft advisory in effect from Wednesday morning through Wednesday evening...
Tonight..South southwest winds 10 to 15 knots becoming north northeast late in the evening. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 9 seconds. Inland waters a moderate chop. Showers and a slight chance of Thunderstorms in the evening, then showers likely after midnight.
Wednesday..Northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Inland waters a moderate chop. Showers likely. A slight chance of Thunderstorms in the afternoon.
Wednesday night..East winds 15 to 20 knots becoming west southwest 10 to 15 knots in the morning. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Inland waters a moderate chop. Showers likely and a chance of Thunderstorms.
Thursday..West northwest winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 9 seconds. Inland waters a moderate chop. A chance of showers in the morning, then a slight chance of showers in the afternoon.
Thursday night..Northwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop.
Friday..North northwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop.
Friday night..North winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Saturday..Northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters smooth.
Saturday night..East northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop. A slight chance of showers.
Sunday..North northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop. A chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 221 Pm Est Tue Nov 13 2018
Synopsis.. A cold front will move southeast across area waters this afternoon and evening, with high pressure building to the north behind it. An area of low pressure will move northeast across the region Wednesday into Wednesday night. High pressure will build from the west Thursday. The high will build to the northwest then north Friday night into Sunday.


7 Day Forecast for Marine Location Near Jacksonville, FL
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location: 30.28, -81.7     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 131851
afdjax
area forecast discussion
national weather service jacksonville fl
151 pm est Tue nov 13 2018

Near term through Wednesday ...

showers with embedded thunderstorms will move southeast across the
region this afternoon, associated with an area of low pressure and
its cold front.

Cold front is expected to sink just to the south this evening, with
decreasing precipitation chances behind it. The area of low pressure
on this front will linger just to the southeast through the night
into early Wednesday, which will keep precipitation potential for
southeastern counties through the night into Wednesday morning. High
pressure will build to the north Wednesday, as another area of low
pressure builds in the northeastern gulf. The combination of the two
lows and the high will yield an enhanced onshore flow. This will
keep precipitation in the forecast through the day Wednesday, along
with breezy conditions for the beaches, especially for SE ga
beaches.

Cold advection behind the front will allow temperatures to fall
overnight into Wednesday, especially for SE ga and inland NE fl. The
onshore flow off the relatively warmer atlantic waters, will help
keep temperatures a little milder over NE fl. A fairly large
gradient in high temperatures is forecast for Wednesday with
readings over the interior portion of SE in the mid 50s, while areas
south of kgnv top out around 80.

Short term Wednesday night through Saturday ...

low over the northeastern gulf will track northeast across region
Wednesday evening, and combine with low to the east Wednesday
night. Increased coverage of showers and storms expected during
this period. This low will then track northeast up the coast late
Wednesday night into Thursday, with high pressure building to the
west Thursday afternoon. As the high builds moisture will
decrease from west to east. With the flow from the northwest
Thursday, the cooler air will be able to advect all the way to the
coast.

The high will remain to the west northwest Thursday night, yielding
a cool northwest flow, with lows falling well below seasonal
normals. Readings dipping into the 30s will be common across inland
portions of the region.

The high will be to the northwest Friday, then to the north on
Saturday with a cool northwest to north flow continuing into Friday
night. Despite expected sunny skies for Friday, temperatures will
trend well below normal. After another night with readings dipping
into the 30s for much of the region, readings will start to recover
somewhat on Saturday as the flow becomes more north northeast.

Long term Saturday night through Tuesday ...

high pressure will remain north of the region over the weekend, with
a cold front sliding through Sunday night into Monday. Strong high
pressure will build to the north Tuesday. Near seasonal temperatures
are expected this period.

Marine
A cold front will move southeast across area waters this afternoon
and evening, with high pressure building to the north behind it.

An area of low pressure will move northeast across the region
Wednesday into Wednesday night. High pressure will build from the
west Thursday. The high will build to the northwest then north
Friday night into Sunday.

Rip currents: SE ga: moderate to high risk for Wednesday.

Ne fl: moderate to high risk for Wednesday.

Aviation 18z tafs...

complex TAF forecast package with a front moving through the area
during the afternoon and evening hours. Scattered showers with
embedded thunderstorms are moving eastward across southeast ga and
northeast fl this afternoon. Vcsh vcts groups for all TAF sites
except ssi where more coverage is expected. Wind shift from
southwest to northwest during the evening hours between 22-03z as
the front passes. Even with the passage of the front, a saturated
air mass remains in place, promoting widespread ifr CIGS overnight
and into Wednesday morning. Winds continue to veer to the
northeast by Wednesday as strong wind gusts are forecast for
coastal TAF sites (ssi,sgj).

Preliminary point temps pops
Amg 57 58 49 59 70 60 80 30
ssi 64 65 56 64 50 60 70 50
jax 66 69 57 67 50 50 60 40
sgj 69 75 61 70 50 50 50 40
gnv 66 74 58 67 20 50 60 30
ocf 69 79 60 69 30 50 60 30

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory from 5 am Wednesday to 9 am est Thursday
for coastal waters from altamaha sound to fernandina beach
fl out 20 nm-waters from altamaha sound ga to fernandina
beach fl from 20 to 60 nm.

Small craft advisory from 10 am to 9 pm est Wednesday for
coastal waters from fernandina beach to st. Augustine fl
out 20 nm-waters from fernandina beach to st. Augustine fl
from 20 to 60 nm.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DMSF1 11 mi45 min 75°F
BLIF1 12 mi45 min N 9.9 G 13 74°F 1019.7 hPa74°F
LTJF1 15 mi45 min 73°F 68°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 17 mi45 min NNE 14 G 18 72°F 75°F1019 hPa
FRDF1 - 8720030 - Fernandina Beach, FL 30 mi45 min NNW 9.9 G 16 71°F 73°F1019.9 hPa
RCYF1 34 mi45 min 76°F
SAUF1 - St. Augustine, FL 37 mi75 min WNW 7 G 8 74°F 76°F1017.4 hPa (+0.8)
41112 - Offshore Fernandina Beach, FL (132) 37 mi45 min 73°F4 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 50 mi90 min WNW 4.1 75°F 1018 hPa72°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Naval Air Station, FL3 mi82 minNNW 1110.00 miOvercast76°F70°F82%1017.7 hPa
Jacksonville Craig Municipal Airport, FL10 mi22 minN 1410.00 miOvercast72°F68°F87%1018.4 hPa
Cecil Airport, FL10 mi25 minN 1410.00 miMostly Cloudy72°F68°F88%1018.6 hPa
Jacksonville International Airport, FL15 mi19 minN 14 G 2010.00 miOvercast70°F66°F87%1019 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL17 mi23 minN 14 G 2210.00 miOvercast72°F68°F87%1018.4 hPa

Wind History from NIP (wind in knots)
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Last 24hr--------S5S5S5S7S7S8S4S7S8S9S10S10S8S9S5S6W7NW8NW7NW11
1 day agoN13NE9NE12N10NE13NE9NE12NE11NE11NE8NE6NE7NE6NE8N5----E6SE6SE10----SE8--
2 days agoN11N13N10N10N11N11N12N11N11N10N13N9N9N9NE14--N14N15NE14N15NE11N11N11NE11

Tide / Current Tables for Ortega River entrance, Florida
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Ortega River Entrance
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Tue -- 02:01 AM EST     6.76 feet High Tide
Tue -- 06:50 AM EST     Sunrise
Tue -- 08:10 AM EST     5.90 feet Low Tide
Tue -- 11:56 AM EST     Moonrise
Tue -- 02:36 PM EST     6.93 feet High Tide
Tue -- 05:31 PM EST     Sunset
Tue -- 09:26 PM EST     5.96 feet Low Tide
Tue -- 10:39 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.66.76.86.76.56.365.95.95.966.36.66.86.96.96.86.66.36.16666.1

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Tue -- 01:49 AM EST     -0.00 knots Slack
Tue -- 04:15 AM EST     -1.69 knots Max Ebb
Tue -- 06:49 AM EST     Sunrise
Tue -- 08:19 AM EST     0.00 knots Slack
Tue -- 10:59 AM EST     1.94 knots Max Flood
Tue -- 11:55 AM EST     Moonrise
Tue -- 02:20 PM EST     -0.00 knots Slack
Tue -- 04:52 PM EST     -1.73 knots Max Ebb
Tue -- 05:29 PM EST     Sunset
Tue -- 09:16 PM EST     0.00 knots Slack
Tue -- 10:38 PM EST     Moonset
Tue -- 11:31 PM EST     1.45 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.20.7-0.2-1.2-1.7-1.6-1.3-1-0.30.71.61.91.71.10.4-0.7-1.5-1.7-1.6-1.5-1-0.30.71.4

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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 Jacksonville, FL (21,6,7,8)
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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.