Tuesday, July7, 2020
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Marine Weather and Tides
Kings Bay Base, GA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:28AMSunset 8:33PM Tuesday July 7, 2020 4:36 AM EDT (08:36 UTC) Moonrise 9:49PMMoonset 7:44AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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- 212 Am Edt Tue Jul 7 2020
Today..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a moderate chop. Showers and a chance of Thunderstorms.
Tonight..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a moderate chop. Showers likely and a slight chance of Thunderstorms.
Wednesday..West southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. Showers and a chance of Thunderstorms.
Wednesday night..West winds around 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Thursday..West winds 5 to 10 knots becoming south southwest in the afternoon. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. Showers likely and a chance of Thunderstorms.
Thursday night..West southwest winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Friday..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. Showers likely and a chance of Thunderstorms.
Friday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Saturday..Southwest winds around 10 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 212 Am Edt Tue Jul 7 2020
Synopsis.. Low pressure over central georgia will track east toward the carolina coast through Wednesday while high pressure builds across south florida. Small craft exercise caution levels are possible Tuesday night for elevated winds as the pressure gradient increases slightly over the local waters. The national hurricane center is also Monitoring this low for potential tropical cyclone development as it tracks northeast away from the local waters Thursday, with a lingering trough remaining across the southeast region through Saturday.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 07, 2020 at 1200 utc... 65 nautical miles east northeast of flagler beach. 69 nautical miles east of saint augustine beach. 76 nautical miles east of jacksonville beach. 91 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 070627 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 227 AM EDT Tue Jul 7 2020

NEAR TERM [Through Tonight].

Currently, surface low near Macon, GA is slowly moving ENE along a frontal boundary stretching from Myrtle Beach, SC westward into central GA, AL, and MS with another surface low located on the western end of the boundary over the Arklatex region. Aloft, a southern stream mid/upper level trough axis was positioned from the TN and Ohio Valleys southwest into east Texas as mid level ridging was centered over Florida straits into the southeast Gulf of Mexico. Surface High pressure over South FL was nosing in some slightly drier air in the low levels over parts of the FL peninsula and this feature to our south along with the low just to our northwest is bringing southwest low level flow over our region. This pattern continues allowing moisture to move over the suwannee river valley and much of SE GA with showers still ongoing over areas north of I-10 and west of I-75.

Another wet and stormy day is expected as the frontal boundary to our north will nudge little to the north as the surface low slowly crawls ENE from eastern GA towards the carolina coast through tonight. WPC has a Marginal Risk today over SE GA due to continued high moisture levels with precipitable water values of 2 to 2.3 inches that could produce locally heavy rain as storms develop in the afternoon hours over areas that have received 1 to 3 inches of rain over the past 2 days. Not expecting severe weather today as mid level temperatures continue to be warm with very little shear present in forecast soundings for today, but some strong wind gusts of 40-50 mph are possible with frequent lightning as well as diurnal heating drives low level CAPE values to near 3,000 J/kg, especially over NE FL where less overall cloud cover will support higher temperatures.

Hi temperatures today will be around 90 degrees for areas just south of Jacksonville along I-95 towards St Augustine and Palm Coast with upper 80s over interior NE FL while SE GA areas will experience high temperatures in the mid 80s as more cloud cover during the day keep temperatures lower in the afternoon. Lows tonight will be in the mid 70s along the coast with low to mid 70s over inland NE FL and low 70s over inland SE GA.

SHORT TERM [Wednesday Through Thursday].

Wednesday and Wednesday Night: A mid/upper level ridge over south Florida and the southern Gulf of Mexico will shift to the the western Gulf of Mexico Wednesday night. A weak shortwave is forecast to move along the northern portion of the ridge over southeast Georgia during the day on Wednesday, adding additional lift for showers/storms. A broad area of low pressure is forecast to stretch from just north of the area to the coast of South Carolina Wednesday morning, with a surface trough extending back to the southwest across the area. This will be an additional focus for showers/storms. The low is forecast to consolidate along the coast of South Carolina Wednesday night. Deep tropical moisture will be across the region, with precipitable water values of 2.1-2.4 inches. Waves of showers/storms are expected through the day and into the evening hours before dissipating. An early start to convection will not allow the east coast sea breeze to develop, and storms moving to the east at around 15 mph will limit the overall heavy rainfall threat, but some localized heavy rainfall will be possible if storms are able to train. Highs will be in the upper 80s to lower 90s and lows will be in the low to mid 70s.

Thursday and Thursday Night: Upper level ridging will center over the Desert Southwest on Thursday. Guidance also indicates weak ridging could move into the area on Thursday before another shortwaves moves across southern Georgia in the late afternoon and evening. This could lead to slightly lower rainfall chances compared to Wednesday. The surface area of low pressure will move along the coast of Carolinas on Thursday, and a weak surface trough will continue to extend to the southwest over the area. Deep west northwesterly flow will prevail over the area on Thursday, and precipitable water values will fall to 1.9-2.2 inches. Slightly lower rain chances are forecast, but still in the high end scattered to numerous range.

LONG TERM [Friday Through Tuesday].

Upper level ridging will be over Bermuda and the Desert Southwest the end of the week through early next week, with upper level troughing over the area. High chances for showers and storms (50-70%) are expected each afternoon and evening across the area. Highs will be 90-95F and low will be in the 70s.

AVIATION. [Through 06Z Wednesday]

The period will begin with mostly VFR conditions as showers remain north and west of most the regional terminals. The exception will be KSSI where showers will continue off and on through this morning as a surface low moves slowly east from central GA towards the Carolina coast through the period. Shower activity will resume across most of the terminals from 12Z to 14Z as moist southwest flow from the gulf brings showers eastward. Have VCTS covering cover the TAF sites by 16Z to 19Z as daily heating allows storms to develop with PROB30 groups for all TAF sites generally 18z to 23Z for higher storm coverage during the mid afternoon. The period will end with VCSH at all area terminals by 00Z as showers trail through the area from the low to the north.

MARINE.

Seas of 2 to 4 feet are expected today with southerly winds around 10-15 knots. Waves of showers and thunderstorms will stream over the area waters today with the highest chances over the GA waters. Winds this evening may bring caution level to the offshore waters as the pressure gradient increases between the low to our north and the surface high pressure south of the waters.

Rip Currents: Low rip current risk today and Wednesday.

PRELIMINARY POINT TEMPS/POPS.

AMG 86 72 89 73 91 / 70 40 80 20 60 SSI 86 75 89 76 90 / 80 50 80 30 60 JAX 89 75 91 75 94 / 70 30 90 20 60 SGJ 90 75 90 75 92 / 70 30 80 30 60 GNV 88 74 90 74 92 / 60 40 80 30 60 OCF 89 75 90 75 92 / 50 50 70 30 50

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 7 mi49 min SSE 4.1 G 6 82°F 83°F1015.9 hPa
41112 - Offshore Fernandina Beach, FL (132) 11 mi41 min 82°F3 ft
BLIF1 26 mi55 min S 7 G 8.9 77°F 1016.9 hPa77°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 26 mi49 min SSW 5.1 G 8 75°F 83°F1016.4 hPa
DMSF1 27 mi49 min 84°F
LTJF1 27 mi55 min 75°F 73°F
NFDF1 27 mi49 min SSW 7 G 9.9 73°F 73°F
JXUF1 30 mi49 min 84°F
SAXG1 - Sapelo Island Reserve, GA 46 mi37 min SSW 8.9 78°F 1015 hPa (-1.0)75°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 54 mi47 min SSW 14 G 16 81°F 82°F3 ft1015.5 hPa (-0.8)77°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 mi42 minS 510.00 miFair75°F0°F%1015.9 hPa
Jacksonville International Airport, FL22 mi41 minS 510.00 miMostly Cloudy74°F72°F94%1015.6 hPa

Link to 5 minute data for KFHB

Wind History from FHB (wind in knots)
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Last 24hrS3S5SW7S4S5S6SE7SE11SE13CalmSE4SE8S9S6S7S6S7S7S7S9S9SW6S6S6
1 day agoS3CalmS3CalmSW3CalmCalmS4E4SE9NE4S7S6SE5S5S6S4S5S10S9S6S4S6S5
2 days agoNW3N3N4CalmCalmE5SE10S5CalmNE3E5E7SE5S11E4SE6CalmS3CalmCalmCalmCalmS4Calm

Tide / Current Tables for Seacamp Dock, Cumberland Island, Georgia
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Seacamp Dock
Click for Map
Tue -- 05:13 AM EDT     0.42 feet Low Tide
Tue -- 06:29 AM EDT     Sunrise
Tue -- 08:43 AM EDT     Moonset
Tue -- 11:26 AM EDT     6.64 feet High Tide
Tue -- 05:11 PM EDT     0.55 feet Low Tide
Tue -- 08:32 PM EDT     Sunset
Tue -- 10:48 PM EDT     Moonrise
Tue -- 11:56 PM EDT     7.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.66.54.82.91.20.40.71.83.24.75.96.66.55.74.22.61.20.60.923.456.37.3

Tide / Current Tables for Chester, Bells River, St. Marys River, Florida
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Chester
Click for Map
Tue -- 05:17 AM EDT     0.44 feet Low Tide
Tue -- 06:29 AM EDT     Sunrise
Tue -- 08:43 AM EDT     Moonset
Tue -- 11:42 AM EDT     6.64 feet High Tide
Tue -- 05:15 PM EDT     0.58 feet Low Tide
Tue -- 08:32 PM EDT     Sunset
Tue -- 10:48 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.86.85.13.21.40.50.71.634.55.76.56.65.94.52.81.40.60.81.83.24.76.17.1

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (4,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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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 numerous 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.