Monday, June18, 2018 L-36.com


Marine Weather and Tides
St. Simons, GA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:20AMSunset 8:33PM Monday June 18, 2018 12:14 AM EDT (04:14 UTC) Moonrise 10:36AMMoonset 11:58PM Illumination 22% Phase: Waxing Crescent; Moon at 5 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- 828 Pm Edt Sun Jun 17 2018
Rest of tonight..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Monday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop.
Monday night..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Tuesday..South southeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 6 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the afternoon.
Tuesday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop.
Wednesday..South winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Wednesday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Thursday..South southwest winds 5 to 10 knots. Seas 1 to 2 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Thursday night..West southwest winds 10 to 15 knots. Seas 1 to 2 feet. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Friday..South southwest winds 5 to 10 knots. Seas 1 to 2 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 828 Pm Edt Sun Jun 17 2018
Synopsis.. High pressure ridge to the north will build over the region Monday and Tuesday. The ridge will push south of area waters by Wednesday and Thursday resulting in an offshore wind flow regime again.

7 Day Forecast for Marine Location Near St. Simons, GA
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location: 31.13, -81.39     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 172313
afdjax
area forecast discussion
national weather service jacksonville fl
713 pm edt Sun jun 17 2018

Update Radar shows scattered convection which should
gradually diminish. May see some flare up with converging
outflow boundaries suwanne co to baker co. For an hour or two.

Otherwise... Partly cloudy skies tonight with low temps near our
current forecast lows. Latest hi-res guidance not showing much
precip after midnight thru mid-morning Monday... So made some
adjustments to hourly pop weather grids for this period.

Aviation Vfr conditions through tonight. Latest hrrr suggests
some lower clouds possible around coastal TAF sites... But sref
not showing this. Put in a 4hr tempo for MVFR CIGS 10z-14z at
kssi and ksgj for now. Limited vcts tomorrow to just kvqq and
kgnv with minimal tsra coverage anticipated at TAF sites further
east.

Marine No significant changes planned for next cwf issuance.

High pressure to the north will continue the east to southeast
winds through Monday. Surface ridge pushes south of the area by
midweek resulting in an offshore flow pattern again interrupted
by daily seabreezes. Low wind speeds and sea heights are expected
over the next few days.

Rip currents: moderate risk on Monday with onshore winds.

Preliminary point temps pops
Amg 71 91 71 92 20 50 20 40
ssi 76 86 75 89 10 20 10 20
jax 73 90 72 92 10 20 10 40
sgj 75 87 72 89 10 20 0 30
gnv 72 91 71 92 30 40 20 40
ocf 72 92 71 92 30 30 20 30

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Wolf elsenheimer bricker


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 21 mi74 min Calm 77°F 1020 hPa (+1.0)75°F
41112 - Offshore Fernandina Beach, FL (132) 30 mi44 min 82°F1 ft
FRDF1 - 8720030 - Fernandina Beach, FL 32 mi44 min SSE 1.9 G 2.9 81°F 82°F1021.5 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 33 mi84 min SSE 7.8 G 9.7 81°F 83°F1 ft1020 hPa (+1.0)

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick, Malcolm McKinnon Airport, GA1 mi21 minSSE 410.00 miFair81°F78°F91%1020.4 hPa
Brunswick / Glynco, GA10 mi19 minN 010.00 miFair75°F71°F89%1020.7 hPa

Wind History from SSI (wind in knots)
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Last 24hrW3CalmNW3W3CalmCalmSW3SW6W5W4W6NW5--N6N7E8SE8SE7SE6E4S4SE3SE4SE6
1 day agoW4SW6W3W5W5W3W4W4W3W5NW6NW8W7SW66SW5SE10
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2 days agoSW5SW7SW5SW6SW6W5W4W5W5W7NW7W7W7W96SW6S10S8N8SE4SW7SW9SW8SW7

Tide / Current Tables for St. Simons Lighthouse, St. Simons Island, Georgia
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St. Simons Lighthouse
Click for Map
Mon -- 12:15 AM EDT     Moonset
Mon -- 12:33 AM EDT     7.73 feet High Tide
Mon -- 06:21 AM EDT     Sunrise
Mon -- 07:10 AM EDT     -0.62 feet Low Tide
Mon -- 11:36 AM EDT     Moonrise
Mon -- 01:14 PM EDT     6.69 feet High Tide
Mon -- 07:28 PM EDT     -0.27 feet Low Tide
Mon -- 08:31 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.67.66.85.23.31.40-0.6-0.312.84.766.76.45.43.82.10.7-0.2-0.10.92.74.7

Tide / Current Tables for Mackay River (Daymark #239), Georgia
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Mackay River (Daymark #239)
Click for Map
Mon -- 12:15 AM EDT     Moonset
Mon -- 01:18 AM EDT     8.41 feet High Tide
Mon -- 06:21 AM EDT     Sunrise
Mon -- 07:42 AM EDT     -0.56 feet Low Tide
Mon -- 11:36 AM EDT     Moonrise
Mon -- 02:03 PM EDT     7.31 feet High Tide
Mon -- 08:01 PM EDT     -0.23 feet Low Tide
Mon -- 08:32 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.68.48.27.15.43.31.2-0.2-0.50.42.145.76.87.36.95.842.10.4-0.20.31.93.9

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (0,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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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.