Tuesday, October24, 2017 L-36.com

Marine Weather and Tides
World Golf Village, 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 7:34AMSunset 6:47PM Tuesday October 24, 2017 7:11 AM EDT (11:11 UTC) Moonrise 10:42AMMoonset 9:29PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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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AMZ454 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- 312 Am Edt Tue Oct 24 2017
Today..Southwest winds 15 knots becoming northwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop.
Tonight..Northwest winds 5 to 10 knots becoming 15 to 20 knots late in the evening. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 6 seconds. Inland waters a moderate chop.
Wednesday..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 5 seconds. Inland waters a moderate chop.
Wednesday night..Northwest winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Thursday..North northwest winds 10 to 15 knots becoming northeast 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Inland waters a light chop.
Thursday night..East northeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
Friday..East winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a light chop.
Friday night..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A slight chance of showers.
Saturday..East southeast winds 10 to 15 knots. Seas 2 to 4 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- 312 Am Edt Tue Oct 24 2017
Synopsis.. Cold front to cross the waters early this morning. High pressure will build into the region the remainder of the week, then move offshore into the western atlantic by Saturday.

7 Day Forecast for Marine Location Near World Golf Village, FL
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location: 29.86, -81.55     debug

Area Discussion for - Jacksonville, FL
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Fxus62 kjax 240757
area forecast discussion
national weather service jacksonville fl
400 am edt Tue oct 24 2017

Cooler and drier airmass to filter in tonight...

Near term today-tonight
Today... Initial cold frontal passage just crossing the fl ga
border and steadily moving SE early this morning. Not much more
than a wind shift currently but hi-res models still show slight
chance of a few showers possible this morning as it moves through
ne fl and into the coastal waters. Otherwise partly to mostly
cloudy skies early this morning will show a clearing trend through
the day with skies becoming mostly sunny and will be cooler than
Monday but enough insolation to push highs into the upper 70s near
80 degrees in most locations with a w-nw wind around 10 mph.

Tonight... Secondary re-inforcing cold front to push through with
even cooler and drier airmass and this will keep NW surface winds
elevated around 10 mph and temps will fall into the mid upper 40s
inland and 50s along the coast and st johns river basin. A few
clouds possible with the secondary frontal passage otherwise
mostly clear skies are expected with the coolest temps since early

Short term Wednesday through Thursday night
Upper troughing will continue to amplify over the eastern u.S. On
Wednesday as a reinforcing shortwave pivots through the mid-atlantic
states. Deep southwesterly flow aloft over our region early on
Wednesday will veer to northwesterly by the afternoon hours, which
will advect an even drier air mass into our region. A cool surface
ridge over deep south texas on Wednesday afternoon will quickly
build over our region by early Thursday morning. Despite full
sunshine, northwesterly winds of 10-15 mph and strengthening cold
air advection will keep highs in the upper 60s for locations north
of waycross, ranging to the lower 70s in north central florida.

These values are about 7-10 degrees below late oct climo.

Clear skies and gradually diminishing winds on Wednesday night will
result in the coolest low temperatures since april 8-9, with a few
upper 30s possible in the suwannee valley as the surface ridge
settles over that area towards sunrise on Thursday. Lows elsewhere
will fall to the lower 40s, except upper 40s to lower 50s at area
beaches. Surface ridging will continue to slowly lift northeastward
on Thursday and will shift to a position just off the carolina coast
by late in the day. A very loose pressure gradient will allow winds
to become onshore at the coast during the late afternoon hours on
Thursday. Full sunshine, light winds and rising heights aloft will
allow temperatures to rebound to the lower 70s for most locations,
except upper 60s to around 70 at the coast. Radiational cooling will
occur on Thursday evening area-wide, with low level winds becoming
onshore overnight. These light winds will keep coastal lows in the
low to mid 50s, with inland lows mostly in the 40s likely occurring
just after midnight before warm air advection potentially increases
temps a few degrees during the predawn hours on Friday.

Long term Friday through Monday
A potent shortwave trough over the upper midwest on Friday will
carve out the next deep upper trough that will impact our region
this weekend. This amplifying trough will drive a cold front into
the southeastern states on Saturday, with deepening southwesterly
flow aloft potentially tapping tropical moisture over the
northwestern caribbean sea ahead of the front by Saturday afternoon
and evening. Surface ridging just off the u.S. Eastern seaboard on
Friday will strengthen as it slides northward, with low level flow
becoming southeasterly and deepening on Friday. A narrow ridge aloft
and an expected shallow cumulus stratocumulus cloud field on Friday
afternoon will boost highs into the upper 70s for most inland
locations, with mid 70s at area beaches. Moisture off the atlantic
will continue to slowly increase on Friday night, with a few coastal
showers possible after midnight. Lows will range from the mid 50s
inland to the mid 60s at the northeast florida coast.

A veering wind profile will develop locally ahead of the approaching
cold front on Saturday as deep tropical moisture associated with a
potential tropical cyclone over the northwestern caribbean sea
advects northward into the florida peninsula by late in the day.

Southeasterly surface winds will bring scattered showers onshore
from the atlantic waters along the interstate 95 corridor, with
increasing shower chances during the afternoon hours in north
central florida as the deeper moisture arrives from the florida
peninsula. Model blends currently depict scattered coverage of
showers for most locations in our region, with highs reaching the
mid to upper 70s despite increasing cloudiness. The cold front is
currently expected to sweep through our region on Saturday night,
with a wave of low pressure possibly developing over the near shore
atlantic waters overnight. A few thunderstorms will be possible
along the front on Saturday evening as the energetic upper trough
approaches our area from the west, accompanied by a decent mid-level
jet per model soundings. Model blends currently yield high-end
chance pops at this time, but these chances could increase depending
on how much of the deeper moisture to our south is able to advect
over our region. Surface winds will shift to westerly overnight,
with decreasing pops during the predawn hours over inland southeast
georgia and the western suwannee valley. Lows will range from near
50 over our far western counties to near 60 along the atlantic coast.

A few showers could linger into early Sunday morning depending on
the timing of the frontal boundary and potential low pressure
development near our region. This low pressure center should
strengthen and will move quickly northeastward along the southeast
u.S. Coast, with strengthening west-northwesterly winds expected
locally during the morning hours, with clearing skies from west to
east by the afternoon hours. Cold air advection will keep highs in
the 60s for southeast georgia and the suwannee valley, with lower
70s elsewhere. A cool dome of high pressure will again quickly build
eastward along the northern gulf coast states on Sunday night,
moving directly over our region by Monday. Northwesterly surface
winds will likely remain breezy on Sunday night in coastal
locations, with winds gradually decreasing after midnight inland.

Lows will fall into the low to mid 40s at inland locations by Monday
morning, ranging to the lower 50s at the northeast florida coast.

Despite full sunshine and light northerly winds, a cool air mass
will likely keep highs in the mid to upper 60s for most locations on

Widespread ifr MVFR CIGS from 800-2000 ft ahead of the front
across NE fl TAF sites this morning with improving conds toVFR
after 12z as front slowly clear the region.

Northwest flow behind the front today generally 10-15 knots with
seas 3-5 ft then surge of n-nw winds tonight increasing back
towards 15-20 knots seas 4-6 ft and at least scec conds are
expected with possibly needing a brief SCA due to winds around 20
knots for a brief period of 4-6 hours. Will hold off with any sca
issuance with this package for now. Moderate NW flow continues
through Wed then decreases for Thu Fri as high pressure builds
over the waters. E to SE flow increases on Sat as high pressure
builds into the WRN atlc and next frontal system approaches.

Rip currents: low risk developing in the offshore flow behind the

Will let coastal flood advisory expire as last of st johns river
flooding ended across putnam county yesterday and offshore flow
will continue to lower river levels the rest of the week.

Preliminary point temps pops
Amg 77 45 68 42 0 0 0 0
ssi 77 54 68 49 0 0 0 0
jax 80 52 71 43 0 0 0 0
sgj 79 56 71 50 0 0 0 0
gnv 79 50 72 41 0 0 0 0
ocf 80 50 71 42 0 0 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Hess nelson

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCYF1 4 mi42 min 78°F
SAUF1 - St. Augustine, FL 15 mi72 min NW 6 G 8 71°F 78°F1012.9 hPa (+0.0)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 22 mi87 min W 1.9 71°F 1015 hPa71°F
41117 27 mi50 min 78°F4 ft
JXUF1 34 mi42 min 76°F
DMSF1 36 mi42 min 77°F
LTJF1 36 mi42 min 66°F 58°F
BLIF1 37 mi42 min NNW 5.1 G 6 65°F 1014.6 hPa63°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 38 mi42 min NNW 6 G 7 65°F 77°F1013.8 hPa

Wind History for I-295 Bridge, St Johns River, FL
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL14 mi16 minN 610.00 miMostly Cloudy67°F61°F81%1013.4 hPa

Wind History from SGJ (wind in knots)
Last 24hrS10S11S10S9S10S10
1 day agoE8E9--E6SE12SE12E11SE12SE6E8E9SE11SE9SE9SE12SE7SE9S6SE7S7S8S7S5S6
2 days agoE11E11E12E14E14E12E15E12E11NE11E11E12E16--E14SE22

Tide / Current Tables for Tocoi, Florida
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Tue -- 12:47 AM EDT     0.27 feet Low Tide
Tue -- 06:02 AM EDT     0.99 feet High Tide
Tue -- 07:34 AM EDT     Sunrise
Tue -- 11:41 AM EDT     Moonrise
Tue -- 12:42 PM EDT     0.27 feet Low Tide
Tue -- 06:23 PM EDT     1.10 feet High Tide
Tue -- 06:46 PM EDT     Sunset
Tue -- 10:28 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Palmetto Bluff, St. Johns River, Florida
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Palmetto Bluff
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Tue -- 12:55 AM EDT     4.07 feet Low Tide
Tue -- 06:26 AM EDT     4.97 feet High Tide
Tue -- 07:34 AM EDT     Sunrise
Tue -- 11:41 AM EDT     Moonrise
Tue -- 01:09 PM EDT     4.06 feet Low Tide
Tue -- 06:46 PM EDT     Sunset
Tue -- 06:53 PM EDT     5.06 feet High Tide
Tue -- 10:29 PM EDT     Moonset
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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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southeast    EDIT

Wind Forecast for Jacksonville, FL (7,2,3,4)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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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.