Sunday, December17, 2017 L-36.com


Marine Weather and Tides
Kings Bay Base, GA

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 7:16AMSunset 5:29PM Sunday December 17, 2017 8:47 AM EST (13:47 UTC) Moonrise 6:33AMMoonset 5:19PM Illumination 1% Phase: Waning Crescent; Moon at 29 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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AMZ450 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- 211 Am Est Sun Dec 17 2017
Today..East southeast winds 10 knots or less. Seas 1 to 2 feet. Dominant period 10 seconds. Inland waters smooth.
Tonight..South southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 9 seconds. Inland waters a light chop.
Monday..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 9 seconds. Inland waters smooth. A slight chance of showers.
Monday night..West southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 9 seconds. Inland waters smooth.
Tuesday..West winds around 5 knots becoming south southeast in the afternoon. Seas 1 to 2 feet. Inland waters smooth.
Tuesday night..South southwest winds 5 to 10 knots. Seas 1 to 2 feet. Inland waters a light chop.
Wednesday..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers.
Wednesday night..West southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop. A chance of showers.
Thursday..Northwest winds 5 to 10 knots becoming north northeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Inland waters a light chop. A slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 211 Am Est Sun Dec 17 2017
Synopsis.. Surface high pressure will build southeast from offshore of the carolina atlantic coast today to offshore of the florida atlantic coast through Tuesday. A cold front will approach the local waters late Wednesday with an increase in offshore flow preceding the front. Winds shift onshore trailing the front Thursday as high pressure builds northeast of the region.

7 Day Forecast for Marine Location Near Kings Bay Base, GA
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location: 30.77, -81.48     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 170801
afdjax
area forecast discussion
national weather service jacksonville fl
301 am est Sun dec 17 2017

Warming trend with a low chance of inland showers...

Near term Today and tonight...

synopsis... Moderating temperatures back to above climo values
with increasing moisture across the area bringing more cloud
cover, a low chance of inland showers, and late night fog tonight.

Mean layer ridging will be in the control of the area with a mean
trough upstream over the western tier of the country. This broad
synoptic pattern will keep deepest moisture and forcing wnw of the
region and bring a warming trend under the upper ridge. At the
surface, high pressure over the carolina atlantic coast early this
morning will shift ese through tonight centering offshore of the
fl atlantic coast with a ridge axis extending across central
florida by 12z Monday morning. As the ridge swings southward, a
warm front will lift northward from south florida this morning to
north of the altamaha river basin this afternoon. Shallow moisture
pooling and lift along the warm front could spark a few inland
showers generally west of the highway 301 corridor this afternoon.

Dry conditions expected toward the atlantic coast and southward
toward palatka and ocala where subsidence will be stronger near
the low level ridge axis as it builds across central florida.

Surface winds will veer from ene this morning to the SE through
the afternoon, becoming southerly tonight which will not only warm
temperatures but also increase low level moisture. Abundant cloud
cover will blanket much of SE ga near the lingering front and
over the top of the upper level ridge tonight where a low chance
of a shower will be possible generally from douglas toward jesup
northward, while less high clouds and stronger low level
subsidence over NE fl tonight favors fog potential. Included
patchy fog for SE ga with areas of fog patchy dense mentioned for
ne fl south of i-10 corridor.

After a chilly morning with lows in the mid to upper 30s across
parts of SE ga to low mid 40s NE fl, temperatures will moderate
above climo values with highs in the upper 60s to low 70s as low
level winds swing around the SE through the day and upper ridge
persists aloft. Tonight, mild minimum temperatures in the mid to
upper 50s are expected, with fog expected across much of the area.

Short term Monday and Tuesday
Mild conditions will prevail with temperatures well above normal
for most of the area, despite partly to mostly cloudy skies.

Light southerly winds will prevail as high pressure dominates the
area. A very strong upper high will be over cuba with ridging
stretching northward across our region. A quasi-stationary warm
front will be positioned just northwest of our area and this
boundary will be the primary focus for the best chance of rainfall
which should remain west and northwest of our area on Monday.

Nevertheless, an increase in deep layer moisture in association
with an upper shortwave trough embedded in the fast moving flow
around the northwest periphery of the large high aloft over cuba
will support a low chance of a few light to moderate showers north
of interstate 10 on Monday. The best rain chances (40-50%) will
be across our northern zones near the altamaha river basin.

Rainfall amounts should be generally light.

Conditions will be favorable for an advective fog stratus layer
moving into our western zones Monday night. Have added areas of
fog in that area for now.

Tuesday should remain primarily dry and very mild with near record
temps possible across portions of the area.

Long term Wednesday through Saturday
Ridging will primarily remain the dominant feature with rather mild
conditions continuing into next weekend. A low pressure system
will track east northeastward from the southern plains Tuesday
night and is expected to pass north of our area on Wednesday. The
ecmwf continues to be persistent with this solution. This track would
keep the more widespread rainfall northwest and north of our
area. A weak trailing cold front, however, will move into
southeast georgia and bring a chance for a few showers to our area
Wednesday afternoon through late Wednesday night. The best rain
chances with this system (50-60%) will be across our northern
zones.

Ridging will begin to amplify again over the region in the wake
of this system Thursday through Saturday with mild and mainly dry
conditions prevailing.

Aviation
Vfr conditions through 00z. Mid and high clouds will pass over the
area today as winds veer from ene to SE into the afternoon with
speeds 10 kts or less. Tonight (sun night) conditions become more
favorable for restrictions due to both stratus and fog. 00z sref
model guidance indicating highest potential for restrictions near
sgj with ifr probabilities at about 20%.

Marine
Surface high pressure will build southeast from offshore of the
carolina atlantic coast today to offshore of the florida atlantic
coast through Tuesday. A cold front will approach the local waters
late Wednesday with an increase in offshore flow preceding the
front with the potential for marginal exercise caution conditions
over the outer waters. Winds shift onshore trailing the front
Thursday as high pressure builds NE of the waters and a coastal
trough develops offshore of the fl atlantic coast, but surge not
expected to meet headline criteria.

Rip currents: low risk today and Monday.

Preliminary point temps pops
Amg 69 57 73 60 20 20 40 10
ssi 64 57 71 61 0 0 20 10
jax 71 58 79 60 0 10 20 0
sgj 70 59 77 61 0 0 10 0
gnv 75 57 80 57 10 10 10 0
ocf 76 57 80 57 0 0 10 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Enyedi shuler


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 7 mi47 min Calm G 1 55°F 60°F1026.5 hPa (+0.9)
41112 - Offshore Fernandina Beach, FL (132) 11 mi47 min 61°F2 ft
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 26 mi47 min NE 6 G 8 60°F 62°F1025.9 hPa (+0.9)
BLIF1 26 mi47 min NNE 1 G 1.9 55°F 1026.7 hPa (+0.7)54°F
DMSF1 27 mi47 min 59°F
LTJF1 27 mi47 min 61°F 51°F
JXUF1 30 mi47 min 57°F
SAXG1 - Sapelo Island Reserve, GA 46 mi47 min NNE 2.9 45°F 1026 hPa (+1.0)45°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 54 mi57 min ENE 7.8 G 7.8 57°F 59°F2 ft1025.6 hPa (+0.9)42°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville International Airport, FL22 mi51 minN 010.00 miMostly Cloudy50°F48°F93%1025.4 hPa

Wind History from FHB (wind in knots)
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Last 24hrCalm----------------------------------------------
1 day ago------------NE12--NE12------------------------NE12----
2 days ago------------------------------------------------

Tide / Current Tables for Seacamp Dock, Cumberland Island, Georgia
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Seacamp Dock
Click for Map
Sun -- 01:43 AM EST     -0.30 feet Low Tide
Sun -- 06:32 AM EST     Moonrise
Sun -- 07:17 AM EST     Sunrise
Sun -- 08:19 AM EST     6.70 feet High Tide
Sun -- 02:26 PM EST     -0.18 feet Low Tide
Sun -- 05:19 PM EST     Moonset
Sun -- 05:26 PM EST     Sunset
Sun -- 08:28 PM EST     5.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1-0-0.30.41.73.34.866.76.55.64.12.40.8-0.1-00.82.23.74.95.65.64.83.4

Tide / Current Tables for Chester, Bells River, St. Marys River, Florida
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Chester
Click for Map
Sun -- 01:45 AM EST     0.21 feet Low Tide
Sun -- 06:32 AM EST     Moonrise
Sun -- 07:17 AM EST     Sunrise
Sun -- 08:36 AM EST     7.13 feet High Tide
Sun -- 02:27 PM EST     0.38 feet Low Tide
Sun -- 05:19 PM EST     Moonset
Sun -- 05:27 PM EST     Sunset
Sun -- 08:41 PM EST     6.23 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.60.50.20.92.13.65.16.377.16.34.93.21.50.50.51.32.64.15.36.16.25.54.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jacksonville, FL (8,2,3,4)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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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.