Thursday, September21, 2017 L-36.com


Marine Weather and Tides
Flemington, 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 7:13AMSunset 7:24PM Thursday September 21, 2017 3:40 PM EDT (19:40 UTC) Moonrise 7:29AMMoonset 7:35PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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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AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm...including Grays Reef National Marine Sanctuary- 334 Pm Edt Thu Sep 21 2017
Tonight..SE winds 5 to 10 kt, becoming E 5 kt. Seas 2 ft.
Fri..NE winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Seas 2 to 3 ft, building to 3 to 4 ft in the afternoon.
Fri night..E winds 10 to 15 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. A slight chance of showers and tstms.
Sat..NE winds 15 kt. Seas 4 to 5 ft, building to 4 to 6 ft in the afternoon. A slight chance of showers and tstms.
Sat night..NE winds 10 to 15 kt. Seas 4 to 6 ft. A slight chance of showers and tstms in the evening.
Sun..NE winds 15 kt. Seas 4 to 6 ft.
Sun night..NE winds 10 to 15 kt. Seas 4 to 6 ft.
Mon..N winds 10 kt. Seas 4 to 6 ft.
Mon night..N winds 5 to 10 kt. Seas 4 to 5 ft.
Tue..NW winds 5 to 10 kt. Seas 3 to 4 ft.
Tue night..NW winds 5 to 10 kt. Seas 3 to 4 ft. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 334 Pm Edt Thu Sep 21 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail through this weekend. The high will weaken and shift inland as hurricane maria tracks northward off the southeast u.s. Coast through the first half of next week.

7 Day Forecast for Marine Location Near Flemington, GA
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location: 31.95, -81.47     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 211651
afdchs
area forecast discussion
national weather service charleston sc
1251 pm edt Thu sep 21 2017

Synopsis
High pressure will prevail through this weekend. The high will
weaken and shift inland as hurricane maria tracks northward off
the southeast u.S. Coast through the first half of next week.

Near term through tonight
This afternoon: weak sfc high pressure will persist over the area
with a fair amount of moisture characterized by pwats near 1.5-1.6
inches. Strong sfc heating under partly cloudy skies will contribute
to mixing out some of this moisture, but a light onshore wind will
help maintain sfc dewpts in the lower 70s closer to the coast this
afternoon. Given the setup, we could see a few showers and or
thunderstorms develop along a weak seabreeze circulation initially,
before a mid upper lvl trough extending northeast to southwest
across the region helps spawn additional showers and or thunderstorms
over parts of southeast south carolina and southeast georgia
during peak heating hours mid afternoon into early evening. Precip
coverage could be higher over inland parts of southeast south
carolina where forcing from the mid upper lvl trough is greatest,
but moisture mixing out of the low-lvls will likely limit the overall
potential. Highs will range in the upper 80s near the coast to
lower 90s inland.

Tonight: a few of the high resolution models suggest isolated
evening convection could linger along a sagging mid level
trough axis across our far northern zones around the santee
cooper lakes. With the loss of diurnal heating and warm mid
level temps, we only hung onto 20 pops prior to midnight while
suspecting models could be overdone. We also opted for patchy
fog mentions across northwest zones late tonight where various
guidance progs suggest the higher chances.

Short term Friday through Sunday
Weak upper troughing and some increased moisture will persist
across the area Friday into Saturday and this along with a
fairly weak sea breeze will support a few showers and
thunderstorms, mainly in the afternoon on Friday and just in ga
on Saturday. Building high pressure from the north later
Saturday and Sunday should keep things dry this period.

Temperatures will stay above normal, generally upper 80s during
the day and around 70 at night.

Long term Sunday night through Wednesday
Inland high pressure will persist through early next week while
confidence is increasing that hurricane maria will remain offshore
of the southeast u.S. Coast as it tracks north through the middle of
next week. Some showers could skirt coastal areas early next week as
maria passes by but otherwise mainly dry conditions are anticipated.

Temperatures look to stay above normal.

Aviation 16z Thursday through Monday
Vfr conditions are expected to prevail at both chs and sav terminals
through 18z Friday. However, a shower and or thunderstorm could
impact either terminal this afternoon evening. Additionally, MVFR
vsbys will be possible at either terminal due to fog late tonight
into daybreak, but confidence with the timing and duration of
the event are too low to include at either terminal.

Extended aviation outlook: low probability for brief flight
restrictions in early morning fog and or low clouds Saturday morning
and in mainly afternoon showers thunderstorms Friday at kchs ksav
and at ksav Saturday.

Marine
This afternoon and tonight: fairly tranquil conditions are expected
within weak sfc high pressure over the coastal waters. In general
light variable winds will become south southeast 5-10 kt this
afternoon, highest near the land sea interface. Seas will range
between 1-2 ft nearshore and 2-3 ft in offshore georgia waters,
mainly in a long period swell.

Thursday through Monday: no significant concerns before swells from
hurricane maria nearing the southeast bahamas later this week begin
to impact the waters Thursday night or Friday. Advisories will be
likely for the offshore waters starting Friday and the nearshore
waters starting Friday night. Seas could build to 10 feet or more
near the gulf stream Saturday night and persist in Monday, although
much depends on the exact track strength of hurricane maria.

Rip currents: astronomical influences and a lingering long period
ground swell component will support a low-end moderate rip current
risk at area beaches today. Swell from offshore hurricane maria will
create more significant rip current risks this weekend into the
middle of next week.

Tides coastal flooding
A light onshore wind along with long-period swell and astronomical
influences could lead to minor coastal flooding along parts of the
southeast south carolina coast during near high tide early tonight.

A coastal flood advisory could be needed.

Powerful surf created by offshore hurricane maria will drive
significant wave run-up, which could cause further beach erosion
this weekend into early next week. Also, the potential for
shallow salt water flooding will persist through early next week
around the times of high tide, particularly along the sc coast.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term... Dpb
short term... Rjb
long term... Rjb
aviation... Dpb
marine... Dpb rjb
tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 31 mi41 min SSE 4.1 G 7 85°F 80°F1016.3 hPa (-1.7)
SAXG1 - Sapelo Island Reserve, GA 38 mi41 min Calm 86°F 1016 hPa (-2.0)75°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 50 mi51 min NNE 3.9 G 5.8 80°F 83°F2 ft1016.4 hPa (-1.2)73°F

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA7 mi43 minSSE 610.00 miA Few Clouds89°F68°F51%1015.5 hPa
Hunter U. S. Army Airfield, GA18 mi43 minE 410.00 miA Few Clouds89°F70°F55%1015.1 hPa
Savannah-Hilton Head International Airport, GA19 mi48 minSE 510.00 miMostly Cloudy89°F69°F52%1015.7 hPa

Wind History from LHW (wind in knots)
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Last 24hrE3SW9CalmE7SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3CalmCalmCalm3SE6
1 day agoS5CalmCalmS3E3E4SE3CalmCalmS3CalmSE3CalmCalmCalmCalmCalmCalmSW7SW5NW4W4W4SE3
2 days agoN4NE9N5NE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3SW4W6CalmW3NW4W5

Tide / Current Tables for Highway bridge, Ogeechee River, Georgia
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Highway bridge
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Thu -- 12:24 AM EDT     1.24 feet High Tide
Thu -- 07:12 AM EDT     Sunrise
Thu -- 07:57 AM EDT     -0.00 feet Low Tide
Thu -- 08:27 AM EDT     Moonrise
Thu -- 12:53 PM EDT     1.21 feet High Tide
Thu -- 07:22 PM EDT     Sunset
Thu -- 08:22 PM EDT     0.00 feet Low Tide
Thu -- 08:33 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.21.10.90.70.50.20.1-00.10.50.91.11.21.210.80.60.30.100.10.30.7

Tide / Current Tables for Belfast, Belfast River, Georgia
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Belfast
Click for Map
Thu -- 04:40 AM EDT     -0.15 feet Low Tide
Thu -- 07:12 AM EDT     Sunrise
Thu -- 08:27 AM EDT     Moonrise
Thu -- 10:57 AM EDT     9.21 feet High Tide
Thu -- 05:05 PM EDT     -0.12 feet Low Tide
Thu -- 07:22 PM EDT     Sunset
Thu -- 08:34 PM EDT     Moonset
Thu -- 11:09 PM EDT     9.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.16.34.11.80.2-0.112.95.27.38.89.28.67.25.22.80.8-0.10.52.24.56.88.49.1

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 (15,3,4,5)
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Ground Weather Radar Station Charleston, SC
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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.