Sunday, September24, 2017 L-36.com


Marine Weather and Tides
Skidaway Island, 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 7:12AMSunset 7:18PM Sunday September 24, 2017 10:34 PM EDT (02:34 UTC) Moonrise 10:15AMMoonset 9:21PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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- 1017 Pm Edt Sun Sep 24 2017
.small craft advisory in effect through late Monday night...
Overnight..NE winds 10 to 15 kt. Seas 5 to 7 ft.
Mon..N winds 15 kt. Seas 5 to 7 ft.
Mon night..N winds 5 to 10 kt. Seas 4 to 6 ft.
Tue..NW winds 5 to 10 kt. Seas 4 to 5 ft.
Tue night..NW winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight.
Wed..NW winds 5 to 10 kt. Seas 3 to 4 ft.
Wed night..W winds 5 to 10 kt. Seas 2 ft.
Thu..W winds 5 to 10 kt. Seas 1 foot.
Thu night..SW winds 5 to 10 kt. Seas 1 foot.
Fri..NE winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Fri night..E winds 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 1017 Pm Edt Sun Sep 24 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Hurricane maria will track northward off the southeast u.s. Coast through midweek then will turn northeast and will move away from the coast. A cold front will move through our area from the northwest late this week, followed by high pressure that will build into the region through next weekend.

7 Day Forecast for Marine Location Near Skidaway Island, GA
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location: 31.91, -81.06     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 250222
afdchs
area forecast discussion
national weather service charleston sc
1022 pm edt Sun sep 24 2017

Synopsis
Hurricane maria will track northward off the southeast u.S.

Coast through midweek then will turn northeast and will move
away from the coast. A cold front will move through our area
from the northwest late this week, followed by high pressure
that will build into the region through next weekend.

Near term until 6 am Monday morning
As of 1015 pm: thick cirrus continues to stream off the
convection surrounding hurricane maria. I have been increasing
sky cover all evening, I will make a greater increase in sky
cover with this update. Overall, the current forecast appears on
track.

As of 725 pm: based on latest satellite trends, I will increase
sky over through the rest of this evening and overnight.

As of 630 pm: satellite showed that most of the forecast area
remains under mid and high clouds streaming off of hurricane
maria. I will update the forecast to increase sky cover across
the area for this evening and tonight. Otherwise, conditions
should remain dry with light NE winds.

Previous discussion:
subsidence on the western flank of hurricane maria is moving
over the area. The result is dry weather over land and maybe a
small probability for showers over the gulf stream. The high
clouds will prevail, resulting from the upper jet and the
western periphery of maria. There are no fog concerns due low
level mixing. Temperatures are forecasted to be in the mid to
upper 60s, lower 70s at the beaches and barrier islands.

Short term 6 am Monday morning through Wednesday
As hurricane maria passes offshore, a relatively dry capped
environment should ensure rain-free conditions and a warming trend
through midweek. High temps in the mid upper 80s Mon will warm at
least into the upper 80s lower 90s Wednesday. Low temps are expected
to range from 65-70f inland to the lower mid 70s at the coast.

Monday-Tuesday. Most mid upper level cloud cover will be generated
by offshore maria, especially Monday into Tuesday.

Long term Wednesday night through Sunday
Despite the presence of maria offshore, weak NVA under high pressure
should continue to help mitigate precipitation chances initially.

Chances for showers thunderstorms will increase later in the week
into early next weekend due to an approaching cold front. Guidance
continues to suggest that the front will cross the appalachians
Thursday into Friday, with passage through the forecast area likely
by early Saturday. Above average temperatures will persist in
advance of the front, with cooler temperatures and lower dewpoints
likely behind the front as cool high pressure builds back into the
area.

Aviation 02z Monday through Friday
Vfr conditions should continue through the 0z TAF period. Satellite
indicated that most of the forecast area remains under mid and
high clouds streaming off of hurricane maria. I will keep either
bkn or sct in the sky group through the forecast. By mid day
Monday, winds should shift from the nne and increase to near 10
kts as the region falls under the large circulation of hurricane
maria.

Extended aviation outlook: mainlyVFR conditions. Low
probabilities for morning restrictions due to fog, mainly
Wednesday and Thursday.

Marine
Tonight: the pressure gradient between high pressure over the
great lakes and hurricane maria will be sufficiently strong
enough to support NE winds 15-20 kt across much of our waters.

The long period swell from the offshore hurricane will prevail.

Expect 5-9 ft seas near shore and 9-11 ft seas across the outer
ga waters. Small craft advisories are in effect.

Monday through Friday: small craft advisories will continue due
to high seas pushing into the waters from offshore hurricane
maria. NE winds 15 to 20 knots with some gusts to 25 knots
Monday into early Tuesday will back to the N then NW and will
diminish, and swell size will gradually subside below sca
levels, as maria pushes N NE of the region Tuesday Wednesday.

More tranquil conditions will then prevail by the end of this
forecast period.

Rip currents: long period swell generated by offshore hurricane
maria will continue to impact beaches early this week. A high
risk for life-threatening rip currents will continue at least
through Monday. As maria advances well northeast of our
coastline and the swell diminishes in size, an elevated risk
for rip currents should persist into mid-week.

Tides coastal flooding
Powerful surf created by offshore hurricane maria will drive
significant wave run-up, which could cause further beach erosion
around the times of high tide early this week. A high surf
advisory remains in effect through Monday. Also, the potential
for shallow salt water flooding will persist around the times of
high tide early this week, particularly along the south
carolina coast.

Chs watches warnings advisories
Ga... High rip current risk through Monday evening for gaz117-119-
139-141.

High surf advisory until 8 pm edt Monday for gaz117-119-139-
141.

Sc... High rip current risk through Monday evening for scz048>051.

High surf advisory until 8 pm edt Monday for scz048>051.

Marine... Small craft advisory until 8 pm edt Tuesday for amz352.

Small craft advisory until 4 pm edt Wednesday for amz350-374.

Small craft advisory until 5 am edt Tuesday for amz354.

Near term... Ned
short term...

long term... Jmc
aviation... Ned
marine...

tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 12 mi46 min ENE 6 G 7
SAXG1 - Sapelo Island Reserve, GA 36 mi94 min Calm 77°F 1014 hPa (+1.0)72°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 37 mi44 min NE 16 G 18 80°F 80°F6 ft1013.3 hPa (+0.0)71°F
41033 43 mi86 min NE 12 G 16 80°F 1019.8 hPa

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA10 mi96 minN 010.00 miFair77°F70°F82%1013.5 hPa
Savannah-Hilton Head International Airport, GA18 mi41 minNNE 410.00 miA Few Clouds75°F69°F82%1014.3 hPa

Wind History from SVN (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmN4NW3N3NE4N5NE7NE10E10NE6NE7NE8N4N7NE6NE5NE4CalmCalmCalm
1 day agoCalmCalmCalmCalmCalmCalmN3N3CalmCalmN3N6N4E8NE7E13NE12
G20
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2 days agoCalmSE4CalmCalmCalmCalmCalmN4N3N3NE5NE5NE6E6E8E10E6E10E8E8E8E5E3Calm

Tide / Current Tables for Vernon View, Burnside River, Georgia
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Vernon View
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Sun -- 05:56 AM EDT     0.64 feet Low Tide
Sun -- 07:14 AM EDT     Sunrise
Sun -- 11:15 AM EDT     Moonrise
Sun -- 12:22 PM EDT     8.18 feet High Tide
Sun -- 06:30 PM EDT     0.99 feet Low Tide
Sun -- 07:18 PM EDT     Sunset
Sun -- 10:21 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
87.46.14.42.61.20.61.22.74.56.27.58.187.15.73.92.21.11.12.13.75.36.7

Tide / Current Tables for Savannah River Entrance, Georgia Current
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Savannah River Entrance
Click for Map
Sun -- 12:28 AM EDT     -0.00 knots Slack
Sun -- 03:38 AM EDT     -1.81 knots Max Ebb
Sun -- 06:30 AM EDT     0.00 knots Slack
Sun -- 07:13 AM EDT     Sunrise
Sun -- 09:02 AM EDT     2.02 knots Max Flood
Sun -- 11:14 AM EDT     Moonrise
Sun -- 12:59 PM EDT     -0.00 knots Slack
Sun -- 04:31 PM EDT     -1.93 knots Max Ebb
Sun -- 07:09 PM EDT     0.00 knots Slack
Sun -- 07:17 PM EDT     Sunset
Sun -- 09:31 PM EDT     1.84 knots Max Flood
Sun -- 10:20 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.4-0.6-1.4-1.8-1.8-1.5-0.60.61.621.81.40.8-0-1-1.6-1.9-1.9-1.3-0.211.71.81.4

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 (22,6,7,8)
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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.