Sunday, March24, 2019 L-36.com


Marine Weather and Tides
St. Simons, 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 7:23AMSunset 7:41PM Sunday March 24, 2019 4:57 AM EDT (08:57 UTC) Moonrise 10:46PMMoonset 9:03AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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- 341 Am Edt Sun Mar 24 2019
Today..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 11 seconds. Inland waters a light chop.
Tonight..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Monday..South winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 5 seconds. Inland waters a light chop.
Monday night..West southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 5 seconds. Inland waters a light chop.
Tuesday..West northwest winds 10 to 15 knots becoming north northeast 15 to 20 knots in the afternoon. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers.
Tuesday night..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 after midnight. Inland waters rough. Showers likely.
Wednesday..North northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 8 to 11 feet with occasional seas up to 14 feet. Inland waters rough. A chance of showers.
Wednesday night..North northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Inland waters rough.
Thursday..North northeast winds 15 to 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Inland waters choppy.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 341 Am Edt Sun Mar 24 2019
Synopsis.. High pressure will build across the western atlantic. An area of low pressure will move southeastward across the tennessee valley and into the southeast on Monday. A cold front will then move through the waters Monday night or Tuesday. Strong high pressure will build north of the waters Tuesday night through at least Thursday, with advisory- level winds and seas expected.
Gulf stream.. The approximate location of the west wall of the gulf stream as of mar 23, 2019 at 1200 utc... 60 nautical miles east of flagler beach. 66 nautical miles east of saint augustine beach. 72 nautical miles east of jacksonville beach. 80 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


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 240152
afdjax
area forecast discussion
national weather service jacksonville fl
952 pm edt Sat mar 23 2019

Update
Mostly clear this evening with warmer temperatures being observed
across the area in comparison to last night. This is a result of
easterly flow pushing higher dewpoint temperatures inland. The
only feature of note is a subtle backdoor front pushing through
the area from north to south. Behind the front, surface dewpoint
temperatures increased 15 to 20 degrees from the mid 20s and lower
30s into the upper 40s and lower 50s. With the increased
moisture, much warmer temperatures will be observed overnight with
patchy fog possible across the i-10 corridor for Sunday morning.

Nighttime microphysics imagery courtesy of goes-16 reveals a broad
shield of upper level cirrus advancing across the gulf coast. This
shield of clouds provided by a weak trough propagating across the
gom, will provide some limitation to the radiational cooling
through the overnight. High pressure remains dominate into Sunday
with another phenomenal day featuring mostly sunny skies and
temperatures near or slightly above normal.

Aviation
PrevailingVFR conditions. Patchy fog possible a few hours before
sunrise with light easterly winds continuing on Sunday.

Marine
Weak cold front crossing the waters overnight as surface high
pressure remains north of the area. Light winds and low seas are
expected into early next week.

Rip currents:moderate risk of rip currents continues into Sunday
with onshore flow and long-period swell.

Preliminary point temps pops
Amg 47 79 54 80 0 0 0 20
ssi 59 71 58 75 0 0 0 0
jax 51 78 57 81 10 0 0 0
sgj 55 74 59 78 10 0 10 10
gnv 48 80 57 81 0 0 0 0
ocf 48 82 57 82 0 0 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Mcginnis cordero


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 21 mi58 min E 5.1 59°F 1024 hPa (-1.0)56°F
41112 - Offshore Fernandina Beach, FL (132) 30 mi58 min 62°F2 ft
FRDF1 - 8720030 - Fernandina Beach, FL 32 mi40 min E 1 G 1.9 59°F 63°F1024.6 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 33 mi68 min E 9.7 G 12 64°F 62°F2 ft1024.6 hPa (-0.5)57°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick, Malcolm McKinnon Airport, GA1 mi65 minENE 310.00 miFair58°F55°F90%1024.4 hPa
Brunswick / Glynco, GA10 mi63 minN 01.50 miFog/Mist46°F46°F100%1024.7 hPa

Wind History from SSI (wind in knots)
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Last 24hrNW4NW4NW4NW4N5N9NE10NE8NE9E9E9E12E9E12NE11NE9E9E9E6E7E6E5CalmE3
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W7W6W7W7SW7

Tide / Current Tables for St. Simons Light, Georgia
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St. Simons Light
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Sun -- 06:01 AM EDT     -0.97 feet Low Tide
Sun -- 07:24 AM EDT     Sunrise
Sun -- 10:03 AM EDT     Moonset
Sun -- 11:53 AM EDT     7.14 feet High Tide
Sun -- 06:11 PM EDT     -0.64 feet Low Tide
Sun -- 07:39 PM EDT     Sunset
Sun -- 11:45 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.875.53.61.4-0.3-1-0.31.43.55.56.87.16.65.43.71.80.2-0.6-0.21.23.25.16.6

Tide / Current Tables for St. Johns River Entrance, Florida Current (3)
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St. Johns River Entrance
Click for Map
Sun -- 02:05 AM EDT     -0.01 knots Slack
Sun -- 04:48 AM EDT     -2.25 knots Max Ebb
Sun -- 07:25 AM EDT     Sunrise
Sun -- 08:48 AM EDT     0.00 knots Slack
Sun -- 10:04 AM EDT     Moonset
Sun -- 11:18 AM EDT     2.40 knots Max Flood
Sun -- 02:16 PM EDT     -0.00 knots Slack
Sun -- 04:54 PM EDT     -2.18 knots Max Ebb
Sun -- 07:39 PM EDT     Sunset
Sun -- 08:52 PM EDT     0.00 knots Slack
Sun -- 11:43 PM EDT     2.77 knots Max Flood
Sun -- 11:45 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.51.60.1-1.3-2.1-2.2-2-1.4-0.80.21.62.42.21.50.4-1-1.9-2.2-1.9-1.4-0.70.11.42.5

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.
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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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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.