Monday, March18, 2019 L-36.com


Marine Weather and Tides
Kings Bay Base, 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 7:31AMSunset 7:37PM Monday March 18, 2019 9:26 PM EDT (01:26 UTC) Moonrise 4:07PMMoonset 4:57AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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- 257 Pm Edt Mon Mar 18 2019
.small craft advisory in effect from late tonight through Wednesday evening...
Tonight..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 6 seconds. Inland waters a moderate chop.
Tuesday..North northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 5 to 7 feet with occasional seas up to 9 feet building to 6 to 9 feet with occasional seas up to 11 feet in the afternoon. Dominant period 7 seconds. Inland waters rough. A chance of rain.
Tuesday night..North northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 8 seconds. Inland waters choppy. A chance of showers in the evening. A slight chance of showers after midnight.
Wednesday..North winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Inland waters choppy. A slight chance of showers.
Wednesday night..North northwest winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop.
Thursday..Northwest winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a light chop.
Thursday night and Friday..North northwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop.
Friday night..North winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop.
Saturday..East northeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 257 Pm Edt Mon Mar 18 2019
Synopsis.. As high pressure develops north of the waters, and weak low pressure develops south of the waters, the pressure gradient over the waters will increase Tuesday and Wednesday, resulting in higher winds and seas. Advisory conditions are expected in both nearshore and offshore components. Winds and seas will gradually decrease late Thursday through Saturday.
Gulf stream.. The approximate location of the west wall of the gulf stream as of mar 16, 2019 at 1200 utc... 51 nautical miles east northeast of flagler beach. 49 nautical miles east of saint augustine beach. 49 nautical miles east of jacksonville beach. 46 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


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 181821
afdjax
area forecast discussion
national weather service jacksonville fl
221 pm edt Mon mar 18 2019

Becoming windy along the coast on Tuesday with rough surf, high
risk of rip currents and possible minor coastal flooding...

Near term Through Tuesday night...

drier air is spreading southward on northerly flow... With surface dew
points falling through the 30s across the area, and 20s across s-ctrl
ga. With clear skies and light winds, temperatures would normally drop
quite a bit. However, satellite imagery is showing a large mass of
cloudiness over the gulf of mexico which will spread NE over forecast
area tonight, keeping temperatures up a bit. Latest consensus guidance
is a bit above current low temperature forecast for tonight... Will
trend forecast up closer to consensus.

On Tuesday, a weak shortwave trough aloft will approach the fl peninsula.

Model guidance shows a large area of rain spreading across central and
southern fl during the day... Some guidance suggests a threat for light
rain in our southeastern counties. Have limited chance pop coverage to the
far southeastern part of our forecast area. Otherwise mostly cloudy skies
expected... With best chance of any sunshine over our northern counties. Some
uncertainty on high temperature forecast... Consensus guidance seems on the
low side without a lot of precipitation... Have gone a few degrees above
consensus given potential for any partial insolation.

Long term Wednesday through Sunday...

weak low pressure will move over offshore waters Wednesday... With scattered
showers over the coastal waters... Expect dry over land with partly cloudy skies.

Weak cold air advection pattern on back side of low will help keep temperatures
a little below normal with high temperatures in the 65-70 range and low
temperatures Thursday morning 40-45 SE ga, 45-50 NE fl.

A shortwave trough will swing over the southeastern states Thursday, but will
not be associated with any precipitation.

High pressure at the surface and aloft will build over the region Friday through
Sunday, leading to a period of dry weather. Latest consensus guidance suggests a
slow warming trend this period, with temperatures getting above normal by Sunday.

Aviation Vfr conditions through tonight and early Tuesday with just mid and
high clouds expected. Lower CIGS to around 3000-5000 ft could occur for ksgj
after 12z Tuesday but for now have scattered deck at 3000 ft and vcsh toward
midday. Winds rest of today northeast to north 10-15 kt... Highest at ksgj.

Winds will relax tonight, then increase again for Tuesday. North-northeast
winds will increase to sustained 15-18kt with higher gusts by 14z-15z. The
higher winds most likely to occur at kssi, kcrg, and ksgj

Marine With high pressure building north of the waters, and low pressure south
of the waters, the pressure gradient across the waters will increase Tue wed,
resulting in stronger winds and higher seas. Will maintain current small craft
advisory. Winds and seas are expected to gradually decrease late Thursday and Friday.

Rip currents: high risk on Tuesday and Wednesday as winds increase and become
more onshore producing rough surf with breakers increasing to near 7 feet.

Preliminary point temps pops
Amg 43 65 40 66 0 0 0 0
ssi 49 62 49 63 0 0 0 0
jax 47 66 49 67 0 10 0 0
sgj 54 65 54 66 10 20 10 10
gnv 48 67 48 70 0 10 10 0
ocf 49 68 50 72 10 20 10 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory from 2 am Tuesday to 10 am edt Thursday 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.

Small craft advisory from 4 am Tuesday to 11 pm edt Wednesday
for 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.

Shashy wolf peterson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 7 mi38 min SSE 1 G 1 60°F 63°F1022.6 hPa
41112 - Offshore Fernandina Beach, FL (132) 11 mi56 min 63°F3 ft
BLIF1 26 mi38 min Calm G 0 61°F 1023 hPa45°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 26 mi38 min ENE 1.9 G 2.9 61°F 63°F1021.9 hPa
LTJF1 27 mi38 min 61°F 40°F
SAXG1 - Sapelo Island Reserve, GA 46 mi86 min S 5.1 59°F 1021 hPa (+1.0)42°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 54 mi36 min SW 1.9 G 3.9 62°F 62°F3 ft1021.6 hPa (+1.3)34°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fernandina Beach Municipal Airport, FL11 mi31 minN 010.00 miFair57°F41°F56%1022 hPa
Jacksonville International Airport, FL22 mi30 minN 010.00 miOvercast56°F45°F67%1021.7 hPa

Wind History from FHB (wind in knots)
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Last 24hrN6N4N4N6N5NW6NW5N4N7N7N8N7N8N8NE11N13NE14
G18
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1 day agoNE5N5NW6N7NW7N7N6N5NE8NE7NE10N6NE9N9N12
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2 days agoS8S8SW4SW3W5W5NW5NW9N9N9N8N7NW9N10N8N7N4NE8E9NE9NE10E6NE6NE8

Tide / Current Tables for Seacamp Dock, Cumberland Island, Georgia
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Seacamp Dock
Click for Map
Mon -- 12:54 AM EDT     -0.57 feet Low Tide
Mon -- 05:57 AM EDT     Moonset
Mon -- 07:30 AM EDT     7.17 feet High Tide
Mon -- 07:32 AM EDT     Sunrise
Mon -- 01:35 PM EDT     -0.44 feet Low Tide
Mon -- 05:06 PM EDT     Moonrise
Mon -- 07:35 PM EDT     Sunset
Mon -- 07:56 PM EDT     6.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.60.11.53.356.37.17.16.24.62.70.9-0.2-0.30.62.13.85.36.36.76.24.83

Tide / Current Tables for Chester, Bells River, St. Marys River, Florida
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Chester
Click for Map
Mon -- 12:58 AM EDT     -0.60 feet Low Tide
Mon -- 05:57 AM EDT     Moonset
Mon -- 07:32 AM EDT     Sunrise
Mon -- 07:46 AM EDT     7.17 feet High Tide
Mon -- 01:39 PM EDT     -0.46 feet Low Tide
Mon -- 05:07 PM EDT     Moonrise
Mon -- 07:36 PM EDT     Sunset
Mon -- 08:12 PM EDT     6.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0-0.6-01.334.76.16.97.16.54.931.1-0.2-0.40.41.83.556.16.76.45.23.3

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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Other links: Northern Pacific     Contential US     Full GOES-East
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.