Saturday, April4, 2020
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Marine Weather and Tides
Country Club Estates, 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 7:08AMSunset 7:48PM Saturday April 4, 2020 11:48 PM EDT (03:48 UTC) Moonrise 3:05PMMoonset 4:02AM Illumination 91% Phase: Waxing Gibbous; Moon at 12 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- 936 Pm Edt Sat Apr 4 2020
Rest of tonight..East northeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 14 seconds. Inland waters a light chop.
Sunday..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 13 seconds. Inland waters a light chop. A chance of showers.
Sunday night..East southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 13 seconds. Inland waters a light chop.
Monday..Southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 13 seconds. Inland waters a light chop.
Monday night..South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Inland waters a light chop.
Tuesday..South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Inland waters a light chop. A slight chance of showers.
Tuesday night and Wednesday..West southwest winds 5 to 10 knots. Seas 2 to 4 feet. A chance of showers and a slight chance of Thunderstorms.
Wednesday night and Thursday..West southwest winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of. A slight chance of Thunderstorms in the morning.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 936 Pm Edt Sat Apr 4 2020
Synopsis.. Long period swells from the northeast driven by a low pressure system over the northwestern atlantic waters will lead to increasing seas. Offshore waters south of fernandina beach will see waves build to 4 to 6 feet tonight, peaking around 5 to 7 feet Sunday and Sunday night. A weak backdoor cold front Sunday will lead to chances for showers. On Tuesday, another weak front will move into the region, followed by yet another front around Thursday night, bringing a return for Thunderstorm chances in addition to more showers mid-week.
Gulf stream.. The approximate location of the west wall of the gulf stream as of apr 04, 2020 at 1200 utc... 65 nautical miles east of flagler beach. 74 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 93 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Country Club Estates, GA
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location: 31.23, -81.4     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 050143 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 943 PM EDT Sat Apr 4 2020

UPDATE.

A strong seabreeze front (in terms of cooler temperature and higher moisture advection) moved through this afternoon, so have adjusted hourly temperatures and dewpoints accordingly. Otherwise, forecast remains on track for a cloudy, dry evening with overnight temperatures in the upper 50s to low 60s.

PREV DISCUSSION [756 PM EDT].

NEAR TERM [Through Tonight].

Weak backdoor frontal boundary that settled southward today will drift inland through southeast GA tonight and portions of northeast FL and then stall. Flow aloft currently is west- northwest, but an upstream complex shortwave system over TX and LA will push eastward tonight, and be located right at our door step Sunday 12Z. This system will transport much more moisture than there is currently and some slight chance of rain by the morning.

SHORT TERM [Sunday Through Monday Night].

Sunday . Almost the entire day we expect cloudy skies as the shortwave with some substantial mid level vorticity pushes through the region. PWATS will be around the 1.3 to 1.5 inch range. By the late afternoon, neg vort advection should be developing as the shortwave begins to move out of the area so decreased cloudiness seems probable in the aftn. The shortwave trough may induce weak low pressure along the stalled frontal boundary over the forecast area. Expect scattered shower activity to develop given the front and shortwave activity passing through. Best chances at this time look to be over northeast FL mainly to the north of GNV. Highs not as warm as today but mid 70s to near 80 are in the forecast at this time.

Monday . Surface high pressure will return to the area with the mid and upper level ridge remaining in place aloft, rendering dry conditions once again. Highs will warm back up into the mid 80s, with low 80s along the immediate coastline.

LONG TERM [Tuesday Through Saturday].

A weak pressure pattern will remain in place aloft of the local area next week, with broad ridging over the north-central Gulf coastline and a few shortwave impulses rounding over the top of the ridge. To our north, however, the pattern is more active. On Tuesday, a low pressure system moving off the New England coastline will drag a weak cold front into SE GA, though it will stall out near the state line. Scattered showers and isolated thunderstorms are possible with this system Tuesday through Wednesday night, mostly in SE GA. On Thursday, a more potent upper level vort max will dig into the Great Lakes region, developing another cold front that will move across the southeast Thursday night-Friday.

Warming temperatures will continue early in the week with prevailing west-southwest flow. Highs will be in the 80s Tue and Wed, possibly returning to the low 90s Thu with morning lows in the 60s. Behind the cold front passage Friday, however, noticeably cooler temperatures will advect into the area with highs dropping back down to the 70s by Saturday and morning lows dipping back into the 50s.

AVIATION. [Through 00Z Monday]

The east coast sea breeze will continue to move west this evening across the FL Peninsula and interior SE GA through 06Z. An upper level impulse will move east along the upper Gulf Coast through the period, leading to mid level (4-5 kft) cigs developing around 06Z. Between 12Z-18Z we should see thickening low cigs between 2.5-5 kft with some light rain breaking out across the region and especially over the FL fields. Between 18-24Z, scattered showers will spread across the area. Cecil could see some light fog overnight between 3-5 SM from 09Z to 13Z.

MARINE.

Long period swells from the northeast driven by a low pressure system over the northwestern Atlantic waters will lead to increasing seas. Offshore waters south of Fernandina Beach will see waves build to 4 to 6 feet tonight, peaking around 5 to 7 feet Sunday and Sunday night. A weak backdoor cold front Sunday will lead to chances for showers. On Tuesday, another weak front will move into the region, followed by yet another front around Thursday night, bringing a return for thunderstorm chances in addition to more showers mid-week.

FIRE WEATHER.

Near critical low RH values of 25-35% will continue through the afternoon before rising in the evening hours. Conditions tomorrow are expected to be less dry with minimum RH values in the 40s and 50s as light rain moves in from out of the SE, with RH levels expected to remain above critical criteria for the rest of the week. Winds will build from out of the east on Sunday to about 5-10 mph for inland areas and up to about 10-15 mph with gusts of about 20-25 mph for areas affected by the east coast sea breeze in the afternoon.

HYDROLOGY.

The Altamaha River in SE GA remains elevated this weekend. The gauge at Baxley continues its broad crest in minor flood stage today, with the sites at Charlotteville, Doctortown, and Everett City remaining in action stage.

PRELIMINARY POINT TEMPS/POPS.

AMG 58 80 57 84 63 / 10 30 0 10 0 SSI 63 74 62 78 64 / 10 30 0 10 0 JAX 62 79 61 83 63 / 10 40 0 10 0 SGJ 63 76 62 80 63 / 10 40 20 0 0 GNV 58 80 59 85 61 / 10 30 0 10 0 OCF 58 80 59 85 61 / 10 30 0 10 0

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . Small Craft Advisory from 10 AM Sunday to 8 AM EDT Monday for 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.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 14 mi48 min E 5.1 66°F 1015 hPa (+1.0)59°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 31 mi58 min E 12 G 12 69°F 67°F2 ft1014.9 hPa (+1.1)61°F
41112 - Offshore Fernandina Beach, FL (132) 36 mi48 min 68°F1 ft
FRDF1 - 8720030 - Fernandina Beach, FL 39 mi48 min E 2.9 G 5.1 73°F 70°F1014.6 hPa (+0.7)

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA4 mi53 minENE 77.00 miFog/Mist60°F57°F91%1014.9 hPa
Brunswick, Malcolm McKinnon Airport, GA6 mi55 minENE 710.00 miFair68°F60°F76%1014.9 hPa

Link to 5 minute data for KBQK

Wind History from BQK (wind in knots)
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Last 24hrSW3SW6SW5CalmSW3CalmW4W5W4NW5NW3N7E6E8NE11NE10E12E11NE10NE10NE6NE5E7NE6
1 day agoCalmCalmCalmCalmCalmW3CalmCalmCalmNW3NW3CalmNE4SW5E4E9SE11SE9SE10S8SW3SW4SW3SW5
2 days agoCalmCalmCalmCalmCalmCalmNW5CalmCalmN4NE3E5S3CalmE11
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Tide / Current Tables for Frederica River, Georgia
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Frederica River
Click for Map
Sat -- 12:16 AM EDT     0.20 feet Low Tide
Sat -- 05:01 AM EDT     Moonset
Sat -- 06:10 AM EDT     7.77 feet High Tide
Sat -- 07:09 AM EDT     Sunrise
Sat -- 12:53 PM EDT     0.17 feet Low Tide
Sat -- 04:04 PM EDT     Moonrise
Sat -- 06:46 PM EDT     7.35 feet High Tide
Sat -- 07:47 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.51.83.75.77.17.87.56.553.41.80.60.20.92.44.367.17.36.85.63.92.2

Tide / Current Tables for Jones Creek entrance, Hampton River, Georgia
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Jones Creek entrance
Click for Map
Sat -- 05:01 AM EDT     Moonset
Sat -- 06:25 AM EDT     7.77 feet High Tide
Sat -- 07:09 AM EDT     Sunrise
Sat -- 12:10 PM EDT     0.17 feet Low Tide
Sat -- 04:03 PM EDT     Moonrise
Sat -- 07:01 PM EDT     7.35 feet High Tide
Sat -- 07:47 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.31.12.54.25.87.17.77.66.54.72.81.10.20.51.534.6677.36.85.43.51.4

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (23,6,7,8)
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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.