Monday, May29, 2017 L-36.com


Marine Weather and Tides
Darien, GA

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:21AMSunset 8:25PM Monday May 29, 2017 11:33 PM EDT (03:33 UTC) Moonrise 9:24AMMoonset 11:21PM Illumination 21% 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- 910 Pm Edt Mon May 29 2017
Tonight..South winds 10 to 15 knots...becoming west southwest after midnight. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Tuesday..West northwest winds 5 to 10 knots...becoming east southeast 10 knots in the afternoon. Seas 1 to 2 feet. Dominant period 5 seconds. Inland waters becoming a light chop. A chance of showers and Thunderstorms late in the afternoon.
Tuesday night..South southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 7 seconds. Inland waters mostly smooth. A chance of showers and Thunderstorms in the evening, then a slight chance of showers and Thunderstorms after midnight.
Wednesday..South winds 5 to 10 knots...becoming east southeast 10 knots in the afternoon. Seas 1 to 2 feet. Dominant period 7 seconds. Inland waters becoming a light chop. A chance of showers and Thunderstorms in the afternoon.
Wednesday night..South winds 5 to 10 knots. Seas 1 to 2 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Thursday through Friday..South southeast winds 10 knots. Inland waters a light chop. A chance of showers and Thunderstorms.
Friday night and Saturday..South winds 10 to 15 knots. Seas 2 to 3 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- 910 Pm Edt Mon May 29 2017
Synopsis.. A frontal boundary will approach the georgia waters from the northwest on Tuesday afternoon. Scattered showers and Thunderstorms will be possible from late Tuesday afternoon through the upcoming weekend as this weak boundary persists over the coastal waters...with generally light wind speeds expected outside of Thunderstorm activity through Friday.

7 Day Forecast for Marine Location Near Darien, GA
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location: 31.32, -81.36     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 300229
afdchs
area forecast discussion
national weather service charleston sc
1029 pm edt Mon may 29 2017

Synopsis
High pressure will persist offshore through tonight. A weak cold front
will gradually move into the area midweek. Atlantic high pressure will
extend west over the region late week into the upcoming weekend.

Near term until 6 am Tuesday morning
Looks like the cap is going to hold. Kclx reflectivity data show
a broad outflow boundary dropping southeast and should clear
just about the entire forecast area over the next several hours
bringing a brief wind shift to the northwest. The shortwave has
passed to the north with dnva overspreading the area. Grids and
text products have been updated to remove mentionable pops and
make minor adjustments to sky cover. While an isolated shower
can not be completely ruled out, probabilities for measurable
rainfall will be <20%.

Short term 6 am Tuesday morning through Thursday
Tuesday: models continue to indicate this could be an active day. At
the surface, a weak cold front will be just to our north and slowly
trending southward. Aloft, a shortwave is expected to pass over the
area late in the day. High temperatures around 90 degrees will
combine with dewpoints around 70 degrees to create instability in
the form of blcapes exceeding 1,000 j kg in the afternoon. Li's are
decent along with steepening low mid-level lapse rates. 0-6 km shear
will be 25-30 kt, which is marginal, but could support some storm
organization. Dcapes initially exceeding 800 j kg and dry air aloft
should support decent cold pools and a damaging wind potential. The
best severe weather potential looks to be inland, closer to the
better upper level energy.

Wednesday: models have backed off a bit on the thunderstorm
potential. Despite the cold front moving closer to the area, it will
be weakening dissipating. Additionally, less instability along with
a stronger cap should limit the overall convection, especially
considering the veering mid-level flow. We lowered pops a little,
but the general thinking remains that isolated to maybe scattered
storms are possible in the afternoon. The severe weather potential
is low.

Thursday: the cold front appears to dissipate across or just south
of the area. However, this appears to have a limited impact on our
area. If anything, instability might be comparable to Wednesday,
with temperatures maybe 1-2 degrees lower. The amount of moisture is
not overly impressive. With perhaps capping in place the convective
potential appears low, but uncertainty reigns.

Long term Thursday night through Monday
Friday through Sunday may feature higher coverage of showers
and tstms mainly in the afternoon and evening as a series of
shortwaves moves through the southeast and a lee surface trough
exists inland. A more pronounced cold front could affect the
area Sunday or Monday, though the front may not end up making it
this far south.

Aviation 03z Tuesday through Saturday
Vfr. Tstms are expected to pass north of kchs this evening.

Extended aviation outlook: mainlyVFR. Brief flight restrictions are
possible in afternoon evening showers and tstms.

Marine
Tonight: southwest to south flow late this afternoon and
evening should average 15 kt with a typically warm air advection
surge regime during this time. Seas will average 2 to 3 ft.

Later tonight, winds will become more offshore. The main risk
overnight may be possible tstms with gusty winds, as an upper
level disturbance passes by. A few of the high resolution models
suggest the sc coastal waters should have a better chance for
showers and tstms late this evening and early in the overnight.

Tuesday through Saturday: a weak cold front will gradually move into
the area midweek. Atlantic high pressure will extend west over the
region late this week into the upcoming weekend. Light winds and
small seas are expected to prevail. The sea breeze will be fairly
weak Tuesday through Thursday, then potentially strengthening a bit
Friday into Saturday as the atlantic ridge strengthens.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 8 mi93 min S 7 80°F 1017 hPa (+2.0)74°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 27 mi43 min S 14 G 16 80°F 79°F2 ft1016.9 hPa (+1.4)73°F
41112 - Offshore Fernandina Beach, FL (132) 42 mi63 min 80°F2 ft
FRDF1 - 8720030 - Fernandina Beach, FL 45 mi45 min SSE 5.1 G 8 81°F 82°F1018.4 hPa

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA7 mi38 minS 510.00 miPartly Cloudy81°F71°F74%1017.6 hPa
Brunswick, Malcolm McKinnon Airport, GA12 mi40 minS 710.00 miFair82°F73°F74%1017.6 hPa

Wind History from BQK (wind in knots)
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Last 24hrSW7SW7W7SW6SW7W7SW6W5W5NW7NW6W6W9NW4W6SW6S7SE9SE12S9SE8S6S5S5
1 day agoCalmSW3W4W5W4W4W3W4W5W6W8W11
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2 days agoCalmCalmCalmCalmSW3CalmW3W3W5NW4SW5W7SW8W7SW8SW6SW10W6SW4SE8S8S6S4Calm

Tide / Current Tables for Jones Creek entrance, Hampton River, Georgia
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Jones Creek entrance
Click for Map
Mon -- 12:25 AM EDT     9.01 feet High Tide
Mon -- 06:07 AM EDT     -0.70 feet Low Tide
Mon -- 06:22 AM EDT     Sunrise
Mon -- 10:24 AM EDT     Moonrise
Mon -- 01:06 PM EDT     7.51 feet High Tide
Mon -- 06:20 PM EDT     -0.55 feet Low Tide
Mon -- 08:23 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.98.87.55.42.80.4-0.7-0.312.74.56.17.17.575.63.31-0.4-0.30.92.74.76.5

Tide / Current Tables for Old Tower, Sapelo Island, Georgia
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Old Tower
Click for Map
Mon -- 06:10 AM EDT     -0.68 feet Low Tide
Mon -- 06:22 AM EDT     Sunrise
Mon -- 10:23 AM EDT     Moonrise
Mon -- 12:14 PM EDT     7.05 feet High Tide
Mon -- 06:24 PM EDT     -0.56 feet Low Tide
Mon -- 08:23 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.47.66.14.220.2-0.7-0.21.33.25.16.476.85.94.32.40.6-0.5-0.31.13.15.37

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 Charleston, SC (23,6,7,8)
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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.