Monday, December10, 2018 L-36.com


Marine Weather and Tides
Dock Junction, GA

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 7:12AMSunset 5:25PM Monday December 10, 2018 7:52 PM EST (00:52 UTC) Moonrise 9:54AMMoonset 8:27PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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- 254 Pm Est Mon Dec 10 2018
.small craft exercise caution...
Tonight..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Tuesday..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Inland waters choppy.
Tuesday night..Northwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Inland waters a light chop.
Wednesday..West northwest winds 5 to 10 knots becoming south southwest in the evening. Seas 3 to 5 feet with occasional seas up to 6 feet subsiding to 2 to 3 feet in the afternoon. Dominant period 9 seconds. Inland waters smooth.
Wednesday night..South southeast winds around 5 knots becoming east after midnight. Seas 2 to 3 feet. Inland waters smooth.
Thursday..East southeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A slight chance of showers.
Thursday night..South southeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. A chance of showers.
Friday..South winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy. Showers and a slight chance of Thunderstorms.
Friday night..Southwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. A chance of showers.
Saturday..West southwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters choppy. A slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 254 Pm Est Mon Dec 10 2018
Synopsis..An area of low pressure east of the carolinas will move further to the northeast as high pressure builds to the west. The high will build overhead on Wednesday then to the northeast Wednesday night into Thursday. A low pressure system will track east toward the region late in the week and affect the region Thursday night into Saturday.
Gulf stream.. The approximate location of the west wall of the gulf stream as of dec 08, 2018 at 1200 utc... 60 nautical miles east of flagler beach. 68 nautical miles east of saint augustine beach. 83 nautical miles east of jacksonville beach. 101 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Dock Junction, GA
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location: 31.21, -81.55     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 102014
afdjax
area forecast discussion
national weather service jacksonville fl
314 pm est Mon dec 10 2018

Short term Tonight and Tuesday... Below normal temperatures with
nw winds will continue tonight as a tight pressure gradient... Between
atlantic low and high pressure to the west... Remains across the
area. A trough will push SE across SE ga NE fl late tonight
bringing only a chance of sprinkles or an isolated shower as
moisture is very limited. Clouds will decrease Tuesday morning
with afternoon temperatures reaching the mid upper 50s under
mostly sunny skies.

Tuesday night through Thursday night... A light inland freeze with
frost is expected Tuesday night as surface high center moves
overhead. Mostly clear skies and calm winds will provide good
radiational cooling. Wednesday with be fair with an increase in high
clouds and light winds. Temperatures will warm into the 60s. High
pressure will shift to the northeast for Thursday with increasing
temperatures and moisture ahead of a vigorous upper low moving
into the southern plains. A chance of rain will develop Thursday
night as a S to SW flow increases ahead of an approaching cold
front over the eastern gulf by 12z Friday.

Long term Friday through Monday... 12z models in good agreement
showing a cold front sweeping east across the area on Friday as
low pressure moves from the lower ms river valley into the
tennessee valley on Saturday. Widespread rain expected Friday...

with the potential for severe storms still uncertain at this
time. Wind fields and dynamics will be very strong but models
still show weak instability. A chance of showers will continue
into Saturday as upper trough lags well behind surface front.

Clearing with seasonably cool temperatures expected for Sunday and
Monday.

Aviation MVFR CIGS expected to prevail through the night.

A shortwave will slide through the area Tuesday morning, which
will rapidly clear the clouds out of the area from north to south.

West northwest to northwest winds around 10 knots with higher
gusts will prevail each afternoon, and light winds are expected
tonight.

Marine Advisory conditions offshore as area remains in a tight
pressure gradient between an atlantic low and high pressure to
the west. The high center will build overhead on Wednesday with
winds and seas decreasing. A low pressure system will approach
form the west late in the week and affect the region Thursday
night into Saturday.

Rip currents: low to moderate risk.

Preliminary point temps pops
Amg 37 56 31 58 10 0 0 0
ssi 38 55 36 58 0 0 0 0
jax 40 56 35 61 10 0 0 0
sgj 41 56 38 61 10 0 0 0
gnv 39 57 33 62 0 0 0 0
ocf 38 58 34 64 0 0 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory until 4 am est Wednesday for waters from
altamaha sound ga to fernandina beach fl from 20 to 60 nm-
waters from fernandina beach to st. Augustine fl from 20 to
60 nm-waters from st. Augustine to flagler beach fl from 20
to 60 nm.

Zibura kennedy nelson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 20 mi113 min NW 6 43°F 1020 hPa (+2.0)39°F
FRDF1 - 8720030 - Fernandina Beach, FL 37 mi35 min W 6 G 8 47°F 58°F1021.6 hPa
41112 - Offshore Fernandina Beach, FL (132) 37 mi23 min 60°F2 ft
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 38 mi63 min WNW 12 G 16 45°F 59°F2 ft1019.9 hPa (+1.5)39°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA6 mi58 minN 010.00 miOvercast43°F37°F81%1021 hPa
Brunswick, Malcolm McKinnon Airport, GA10 mi60 minWNW 410.00 miOvercast44°F37°F76%1020.5 hPa

Wind History from BQK (wind in knots)
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Last 24hrNW5N5NW5NW4NW6W4W5W6NW4W6W5NW6W6W10
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2 days agoCalmCalmCalmCalmCalmCalmCalmCalmN3N3NE5NE5NE7NE7NE10
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Tide / Current Tables for Crispen Island, Turtle River, Georgia
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Crispen Island
Click for Map
Mon -- 04:30 AM EST     0.24 feet Low Tide
Mon -- 07:14 AM EST     Sunrise
Mon -- 09:53 AM EST     Moonrise
Mon -- 11:22 AM EST     8.50 feet High Tide
Mon -- 05:11 PM EST     0.41 feet Low Tide
Mon -- 05:23 PM EST     Sunset
Mon -- 08:27 PM EST     Moonset
Mon -- 11:36 PM EST     7.33 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.95.53.61.70.40.41.334.96.67.88.48.37.25.53.41.40.40.71.93.55.16.47.2

Tide / Current Tables for Mackay River (Daymark #239), Georgia
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Mackay River (Daymark #239)
Click for Map
Mon -- 04:31 AM EST     0.25 feet Low Tide
Mon -- 07:13 AM EST     Sunrise
Mon -- 09:52 AM EST     Moonrise
Mon -- 10:47 AM EST     7.61 feet High Tide
Mon -- 05:12 PM EST     0.42 feet Low Tide
Mon -- 05:23 PM EST     Sunset
Mon -- 08:27 PM EST     Moonset
Mon -- 11:01 PM EST     6.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.74.42.81.40.40.41.43.14.96.47.47.67.15.94.42.71.20.40.823.65.16.26.6

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 Jacksonville, FL (19,4,5,8)
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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.