Friday, July21, 2017 L-36.com


Marine Weather and Tides
Darien, GA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 6:35AMSunset 8:29PM Friday July 21, 2017 12:33 AM EDT (04:33 UTC) Moonrise 3:41AMMoonset 5:54PM Illumination 7% Phase: Waning Crescent; Moon at 27 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- 858 Pm Edt Thu Jul 20 2017
Rest of tonight..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Friday..South southwest winds around 5 knots becoming southeast in the afternoon. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the afternoon.
Friday night..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the evening.
Saturday..Southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the morning. A chance of showers and Thunderstorms in the afternoon.
Saturday night..South winds 10 to 15 knots becoming southwest after midnight. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Sunday..Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Sunday night..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Monday..South southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Monday night..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Tuesday..South southwest 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- 858 Pm Edt Thu Jul 20 2017
Synopsis.. High pressure ridge will remain south of the waters the next few days. Winds will become onshore each afternoon as the sea breeze moves inland, with south to southwesterly winds prevailing otherwise through the weekend.

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 210135
afdchs
area forecast discussion
national weather service charleston sc
935 pm edt Thu jul 20 2017

Synopsis
Atlantic high pressure will extend west into the southeast
coast through this weekend as a surface trough remains inland.

Unsettled weather will ensue toward the early to middle part of
next week as a cold front approaches the area.

Near term until 6 am Friday morning
Dry conditions will prevail overnight. An isolated shower tstm
could brush far western areas from reidsville to millen, but
only for the next hour or so. A few high clouds rotation around
the northeast periphery of the upper low spinning near
jacksonville, florida, will move overhead from time to time, but
expect mostly clear skies to prevail through daybreak. Some
shallow ground fog will be possible early Friday, mainly in
areas that saw rain earlier today. Lows lower-mid 70s inland
with mid-upper 70s coast look on track.

Short term 6 am Friday morning through Sunday
Familiar summer pattern should prevail through the weekend with
upper level ridge building eastward over the forecast area
while the upper low to the southwest further weakens. Despite
large scale subsidence, there will remain enough atmospheric
moisture to combine with the sea breeze to support isolated
diurnal convection along the sea breeze. Temperatures will push
into the mid 90s away from the coast Fri Sat under plenty of
sunshine while the sea breeze will limit MAX temps to around 90
to the lower 90s. This will result in heat indices in the 100 to
105 range during this period.

The upper ridge will begin to break down on Sunday as upper
heights start to fall in response to a digging trough over the
great lakes into the ohio valley region. This will result in an
increase in pops with increasing moisture advection into the
region and with increasing clouds, temperatures will moderate a
bit back near normal values.

Long term Sunday night through Thursday
A more active and synoptically driven weather pattern expected
during the extended forecast period. Slow moving positively
tilted upper trough will settle over the east coast early next
week combining with increasing atmospheric moisture with a
continued southerly circulation associated with the bermuda
high. Precipitable water values will be at or above 2 inches
resulting in increasing pops each day through Wednesday. Expect
highest chances of pops on tues Wed as a surface boundary will
push into the area and stall.

There is some uncertainty towards the end of the extended
period as the GFS is showing some drier air pushing in from the
north while the ECMWF keeps much deeper moisture over the
forecast area with a lingering upper trough axis along the
coast.

Temperatures during this period will generally be near normal
for MAX temperatures but slightly above normal for min
temperatures due to extensive cloud cover.

Aviation 02z Friday through Tuesday
Vfr.

Extended aviation outlook:VFR conditions will prevail.

Marine
The atlantic surface ridge will tend a bit tonight with winds
10-15 kt at times. Seas through tonight will range from 1-2 ft
nearshore to 2-3 ft offshore.

The weekend will feature a typical summer pattern with bermuda
ridge holding strong and influencing the coastal waters.

Generally light to moderate southwesterly winds backing during
the afternoon near the coast due to the sea breeze. Incoming
swell is low and expected seas 2 to 4 ft through the weekend
into early next week, mainly due to the local wind.

Tides coastal flooding
Elevated tide levels due to the lunar perigee and new moon will
result in the possibility for minor coastal flooding during the
evening high tides this weekend into early next week,
especially along the sc coast.

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 Calm 78°F 1017 hPa (+0.0)73°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 27 mi43 min S 9.7 G 12 82°F 83°F2 ft1017.2 hPa (+0.3)76°F
41112 - Offshore Fernandina Beach, FL (132) 42 mi33 min 82°F2 ft
FRDF1 - 8720030 - Fernandina Beach, FL 45 mi45 min Calm G 1.9 79°F 85°F1018.2 hPa

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA7 mi38 minN 010.00 miFair73°F71°F94%1017.6 hPa
Brunswick, Malcolm McKinnon Airport, GA12 mi40 minN 010.00 miFair79°F73°F82%1017.4 hPa

Wind History from BQK (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmSW3CalmCalmCalmCalmW3E3SE5SE11SE8SE6SE7N10
G19
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1 day agoCalmCalmN3CalmCalmCalmCalmCalmCalmNE4N4N3SE6SE8E8S6CalmSE7SE9SE4SE5SE5SE4S3
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3NW3NE3CalmCalmSE6SE6SE4SE3SE4S6CalmCalm

Tide / Current Tables for Jones Creek entrance, Hampton River, Georgia
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Jones Creek entrance
Click for Map
Fri -- 01:05 AM EDT     -0.19 feet Low Tide
Fri -- 04:41 AM EDT     Moonrise
Fri -- 06:35 AM EDT     Sunrise
Fri -- 07:45 AM EDT     7.47 feet High Tide
Fri -- 01:15 PM EDT     -0.98 feet Low Tide
Fri -- 06:53 PM EDT     Moonset
Fri -- 08:15 PM EDT     9.14 feet High Tide
Fri -- 08:27 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.7-0.20.21.43.14.96.37.37.46.64.82.60.4-0.9-0.70.62.74.978.59.18.87.35.1

Tide / Current Tables for Old Tower, Sapelo Island, Georgia
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Old Tower
Click for Map
Fri -- 01:06 AM EDT     -0.18 feet Low Tide
Fri -- 04:41 AM EDT     Moonrise
Fri -- 06:34 AM EDT     Sunrise
Fri -- 06:51 AM EDT     7.08 feet High Tide
Fri -- 01:17 PM EDT     -0.97 feet Low Tide
Fri -- 06:53 PM EDT     Moonset
Fri -- 07:22 PM EDT     8.61 feet High Tide
Fri -- 08:27 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.5-0.20.31.83.75.56.77.16.55.33.61.80-0.9-0.60.93.35.77.68.58.47.45.93.9

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 (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.