Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Douglas, GA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:23AMSunset 7:53PM Wednesday March 29, 2017 3:17 AM EDT (07:17 UTC) Moonrise 7:37AMMoonset 8:44PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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- 303 Am Edt Wed Mar 29 2017
Today..Southwest winds 5 to 10 knots becoming east southeast in the afternoon. Seas 2 to 4 feet. Dominant period 10 seconds. Inland waters smooth.
Tonight..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 10 seconds. Inland waters smooth.
Thursday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the afternoon.
Thursday night..South winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters a moderate chop. A slight chance of showers and Thunderstorms in the evening. A chance of showers after midnight.
Friday..South southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Friday night..West southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
Saturday..Northwest winds 5 to 10 knots becoming east southeast in the afternoon. Seas 2 to 3 feet. Inland waters smooth.
Saturday night..South southeast winds around 5 knots. Seas 1 to 2 feet. Inland waters smooth.
Sunday..East southeast winds 10 to 15 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- 303 Am Edt Wed Mar 29 2017
Synopsis..A weak pressure pattern will continue ovr the area today and early Thursday with the sea breeze developing in the afternoon. South winds will increase late Thursday ahead of an approaching cold front. The front will push south of the water early Saturday trailed by offshore flow. High pressure will build north of the waters early next week with a return of onshore flow.

7 Day Forecast for Marine Location Near Douglas, GA
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location: 31.54, -82.82     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 290057
afdjax
area forecast discussion
national weather service jacksonville fl
857 pm edt Tue mar 28 2017

Update
Only isolated showers remain this evening for southeastern
georgia as northwest flow amplifies from a building upper level
ridge across the gulf. Calm to light westerly winds will allow
moisture off the gulf to form low clouds and fog late
tonight/early Wednesday. Locally dense fog is possible,
especially along and west of the i-75 corridor. Areas of smoke
from recent wildfires could also exacerbate visibility concerns
in areas east of i-75 as well. Rest of the forecast is on track.

Aviation
Vfr conditions are expected this period outside a period of
ifr/MVFR restrictions for fog and some low ceilings late
tonight/early Wednesday morning. Light and variable to mostly calm
winds overnight will allow for some localized dense fog and lifr
restrictions at the usual fog prone airfields. Winds will
increase mid-morning to around 5-10kts and mostly out of the west
to northwest. Seabreeze is expected to develop tomorrow
afternoon, with southeast winds moving a bit further inland than
today.

Marine
Southerly winds at 10-15 knots diminishing some tonight as
offshore flow develops. Long period swells of 3-5 ft nearshore
and 4-6 ft offshore will keep scec headlines offshore through most
of Wednesday. Onshore flow with local sea breezes will develop
again tomorrow afternoon. A strong high pressure center over
eastern canada will press southward by late Wednesday and
Thursday, pushing a weak frontal boundary to near the georgia
waters. This front will stall and then move back northward as a
warm front on Thursday night as a cold front enters the
southeastern states. This weather pattern will tighten our local
pressure gradient, with onshore winds gradually strengthening on
Thursday, reaching caution speeds for the near shore and offshore
waters by Thursday evening. Seas will build to small craft
advisory levels in the offshore waters on Friday as winds become
southerly. The front will cross our coastal waters late on Friday
afternoon, with offshore winds developing and remaining at caution
speeds on Friday night. Weak high pressure will then build over
our region this weekend, with winds and seas quickly diminishing
early on Saturday.

Rip currents: swells begin to fade tonight/early Wed as offshore
flow develops. Marginal moderate risk for rip currents will
continue for Wednesday.

Preliminary point temps/pops
Amg 63 86 61 83 / 20 20 10 40
ssi 64 78 64 76 / 0 10 10 20
jax 62 86 61 83 / 0 20 10 30
sgj 61 81 66 82 / 0 10 10 30
gnv 58 88 59 87 / 0 10 0 40
ocf 57 88 59 86 / 0 10 0 30

Jax watches/warnings/advisories
Fl... None.

Ga... None.

Am... None.

Elsenheimer/sandrik/walker


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 81 mi78 min SSW 4.1 67°F 1015 hPa (-1.0)64°F
FRDF1 - 8720030 - Fernandina Beach, FL 93 mi48 min WSW 1 G 4.1 68°F 70°F1016.3 hPa

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Douglas, Douglas Municipal Airport, GA5 mi43 minWSW 410.00 miFair64°F60°F88%1016.6 hPa
Alma, Bacon County Airport, GA17 mi25 minSW 49.00 miFair66°F63°F90%1015.3 hPa

Wind History from DQH (wind in knots)
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Last 24hrS3CalmSW3SW3SW3W4W8SW6SW7W8W7W4
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SW9SW6CalmSW3CalmSW5W5W4SW5
1 day agoS5CalmCalmCalmCalmS3SW5SW6SW6W6W3W4SW3SW4SE3S4S3CalmCalmSE5S5CalmS3SW5
2 days agoCalmCalmCalmSE3CalmSE3S4S5SW6SW6S6S7CalmS3S5S4SE4CalmSE3SE6SE5S5CalmSE3

Tide / Current Tables for Burnt Fort, Satilla River, Georgia
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Burnt Fort
Click for Map
Wed -- 02:13 AM EDT     3.84 feet High Tide
Wed -- 07:19 AM EDT     Sunrise
Wed -- 08:33 AM EDT     Moonrise
Wed -- 09:20 AM EDT     -0.53 feet Low Tide
Wed -- 02:41 PM EDT     3.62 feet High Tide
Wed -- 07:45 PM EDT     Sunset
Wed -- 09:37 PM EDT     -0.56 feet Low Tide
Wed -- 09:39 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.43.43.83.73.32.51.50.6-0.1-0.5-0.30.61.72.83.53.63.32.71.80.80-0.5-0.50.3

Tide / Current Tables for Below Spring Bluff, Little Satilla River, Georgia
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Below Spring Bluff
Click for Map
Wed -- 05:46 AM EDT     -1.23 feet Low Tide
Wed -- 07:18 AM EDT     Sunrise
Wed -- 08:32 AM EDT     Moonrise
Wed -- 11:55 AM EDT     8.39 feet High Tide
Wed -- 06:03 PM EDT     -1.30 feet Low Tide
Wed -- 07:44 PM EDT     Sunset
Wed -- 09:38 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.87.75.63.10.8-0.8-1.2-02.14.46.57.98.47.86.13.81.3-0.5-1.3-0.51.64.16.48.2

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 (3,6,7,8)
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Ground Weather Radar Station Moody AFB, GA
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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.