Wednesday, May22, 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 6:24AMSunset 8:20PM Wednesday May 22, 2019 7:59 PM EDT (23:59 UTC) Moonrise 11:00PMMoonset 8:35AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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- 347 Pm Edt Wed May 22 2019
Tonight..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop.
Thursday..East winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop.
Thursday night..Southeast winds 10 to 15 knots becoming around 5 knots in the morning. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop.
Friday..Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters smooth.
Friday night..South southeast winds 5 to 10 knots becoming southwest after midnight. Seas 2 to 3 feet. Inland waters a light chop.
Saturday..South southwest winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Inland waters a light chop.
Saturday night..South southeast winds 10 to 15 knots becoming southwest after midnight. Seas 2 to 3 feet. Inland waters a moderate chop.
Sunday..South southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Inland waters a light chop.
Sunday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop.
Monday..South 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- 347 Pm Edt Wed May 22 2019
Synopsis.. A ridge of high pressure will build across the waters.
Gulf stream.. The approximate location of the west wall of the gulf stream as of may 21, 2019 at 1200 utc... 62 nautical miles east of flagler beach. 70 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 96 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 222045
afdjax
area forecast discussion
national weather service jacksonville fl
445 pm edt Wed may 22 2019

Brief respite from heat on Thursday...

Record heat and dry weather this memorial day weekend...

Near term (through Thursday night)
Cu field associated with the east coast seabreeze advancing
inland will reach the suwannee valley next couple hours and
may produce isolated showers there before dissipating this
evening. Otherwise continued dry pattern tonight.

A ridge of high pressure across the mid atlantic region will
build south on Thursday allowing for a surge of onshore winds
to move into the area on Thursday. There may be a period of
morning clouds (and possible brief shower) near the coast.

As was case today... These clouds will advance inland along
the seabreeze with coastal areas having mostly clear skies.

The flow will bring in slightly cooler air especially near the
coast where high temps will be in the mid upper 80s while
areas well inland will be in the lower 90s. Lows both tonight
and Thursday night will be in the 60s inland and 70s coast.

Short term Friday-Saturday night
The deep layer ridge strengthens over the area resulting in
lighter winds with hotter afternoon temps along with continued
dry conditions. High temps expected to reach the century mark
by Saturday across inland SE ga with mid upper 90s elsewhere
and around 90 coast with seabreeze.

Long term Sunday-Wednesday
Potential for record high temperatures for the holiday weekend as
high pressure continues to dominate the weather pattern with
mostly clear skies and no significant chances for precipitation to
develop. Humidity levels will be in the 20s and 30s going into
next week, which will result in a "dry heat" with the heat index
values being very close to the literal temperature. East coast sea
breeze isn't expected to push much further inland than the st
johns river basin for this span of days. High temperatures during
this period will range from the 90s on Friday and then rise into
the lower 100s for inland areas, while remaining in the 90s along
the coast. Overnight low temperatures are expected to be in the
upper 60s and low 70s.

Aviation Vfr this afternoon with easterly winds at 10-13g15-20
knots at all TAF sites which will start to decrease less than 10
knots after sunset. Low level moisture will begin to increase off
the atlc ocean later tonight and have brought in sct020 deck at
coastal TAF sites in the 06-07z time frame for now as latest sref
probs for MVFR CIGS remain below 20% so have kept out bkn cigs
with this TAF package, and some brief bkn CIGS in the 2000-3000 ft
range will be possible at all TAF sites in the 12-15z time frame
as diurnal heating commences, but for now probs too low to
include.

Marine No headlines. A brief surge of easterly winds on
Thursday as a backdoor front washes out across the waters.

Otherwise a ridge of high pressure will be across the waters
resulting in a light synoptic flow with seabreezes producing
elevated winds in the afternoon and evening.

Rip currents: moderate risk through Thursday due to onshore
flow

Preliminary point temps pops
Amg 68 92 66 95 0 10 0 0
ssi 74 84 72 87 0 10 0 0
jax 71 87 67 91 0 10 0 0
sgj 74 84 69 85 0 0 0 0
gnv 66 91 65 94 0 0 0 0
ocf 68 92 66 93 0 0 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Pp jh sc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 21 mi59 min ESE 7 82°F 1021 hPa (+1.0)71°F
41112 - Offshore Fernandina Beach, FL (132) 30 mi59 min 80°F2 ft
FRDF1 - 8720030 - Fernandina Beach, FL 32 mi59 min ESE 5.1 G 9.9 83°F 84°F1021.3 hPa (+0.7)
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 33 mi69 min ESE 12 G 16 80°F 79°F2 ft1020.7 hPa (+0.3)71°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 mi66 minSE 1010.00 miFair82°F70°F67%1020.9 hPa
Brunswick / Glynco, GA10 mi64 minESE 1210.00 miFair82°F69°F66%1020.7 hPa

Wind History from BQK (wind in knots)
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Last 24hrSE5S8S7S6S6S7S7SW5S6S6S8S5S5S8S6S7SE7SE9E10SE11SE9E12E12SE8
1 day agoS8S6S8S5S7S8SW5SW6S7SW4CalmS5SW6SW9SW5SW5SW5S5E9SE11SE12S10SE11S10
2 days agoSE9SE6SE7SE6SE7SE8S5SW3SW4SW4S4S4SW7SW8SW6SE5S5NW7N4E9SE10SE11S12SE10

Tide / Current Tables for St. Simons Lighthouse, St. Simons Island, Georgia
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Mackay River (Daymark #239), Georgia
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Mackay River (Daymark #239)
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Wed -- 12:01 AM EDT     7.88 feet High Tide
Wed -- 06:26 AM EDT     Sunrise
Wed -- 06:29 AM EDT     0.12 feet Low Tide
Wed -- 09:35 AM EDT     Moonset
Wed -- 12:21 PM EDT     6.60 feet High Tide
Wed -- 06:25 PM EDT     0.51 feet Low Tide
Wed -- 08:18 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.97.56.54.93.11.30.30.31.32.94.65.96.66.45.64.42.91.50.60.71.73.356.3

Weather Map and Satellite Images
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wmap_A
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (19,4,5,8)
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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.