Friday, January19, 2018 L-36.com


Marine Weather and Tides
Richmond Hill, 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 7:23AMSunset 5:48PM Friday January 19, 2018 12:09 PM EST (17:09 UTC) Moonrise 9:03AMMoonset 8:16PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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- 1004 Am Est Fri Jan 19 2018
Rest of today..SW winds 5 to 10 kt. Seas 1 foot.
Tonight..W winds 5 to 10 kt. Seas 1 foot.
Sat..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 foot.
Sat night..SW winds 5 kt, becoming W after midnight. Seas 1 foot.
Sun..N winds 5 kt, becoming ne in the afternoon. Seas 1 foot.
Sun night..E winds 5 kt. Seas 1 foot.
Mon..SE winds 5 to 10 kt. Seas 2 ft.
Mon night..S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
Tue..W winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers.
Tue night..NW winds 5 to 10 kt. Seas 2 ft.
AMZ300 1004 Am Est Fri Jan 19 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail through the weekend. A cold front will move through the region Monday night into Tuesday morning, followed by more high pressure through the middle of next week.

7 Day Forecast for Marine Location Near Richmond Hill, GA
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location: 31.95, -81.34     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 191511
afdchs
area forecast discussion
national weather service charleston sc
1011 am est Fri jan 19 2018

Synopsis
High pressure will prevail through the weekend. A cold front
will move through the region Monday night into Tuesday morning,
followed by more high pressure through the middle of next week.

Near term until 6 pm this evening
No significant changes were made with the latest forecast
update.

High pressure will extend across the region today as a strong,
southern stream shortwave digs across the pineywoods of east
texas. The cold, arctic airmass will begin to steadily moderate
as weak warm air advection combines with full insolation. After
a very cold start to the day, highs should recover into the
upper 50s most locales away from the cooler coastal areas as
850 hpa temperatures warm to around 7.5c and 1000-850 hpa
thicknesses rise to around 1340m by late afternoon.

Short term 6 pm this evening through Monday
Tonight: clear skies will give way to increasing thin cirrus
late as the subtropical jet buckles north ahead of southern
stream shortwave energy propagating across the lower mississippi
valley. This should have little impact on overnight lows where a
decoupled boundary layer will support another night of strong
radiational cooling. Expect lows to bottom out in the upper 20s
inland, lower 30s at the coast with mid 30s at the beaches.

Saturday: the mid upper levels will consist of low pressure over the
deep south in the morning. This low will move eastward and weaken,
passing overhead late Saturday night. At the surface, high pressure
will hover over the southeast. There will be increasing high clouds
associated with the low. Otherwise, large scale subsidence and a
lack of moisture will lead to dry conditions. Southwest winds should
allow temperatures to rise a few degrees above normal during the
day, then dropping to near normal at night.

Sunday: the mid upper levels will consist of a low over the
southeast in the morning. This low will move eastward and weaken
through the day. At the same time a disturbance will move into the
plains states, allowing the flow over our area to become
southwesterly. At the surface, high pressure will hover over the
southeast in the morning, barely shifting offshore by the overnight
hours. Dry conditions will prevail. A moderating air mass combined
with mostly sunny skies will allow temperatures to rise above normal
during the day, then remaining above normal at night.

Monday: the mid upper levels will consist of a trough approaching
the mississippi valley, allowing southwesterly flow to prevail over
our area. At the surface, high pressure offshore in the morning will
move away while a cold front approaches from the mississippi valley.

The front and it's precipitation are expected to hold off until
mainly the nighttime hours. However, some models hint at maybe a
light shower or two far inland late in the day. We have slight
chance pops to cover this potential. Regardless, most locations will
be dry. Despite increasing clouds, warm air advecting into the
region will allow temperatures to rise well above normal.

Long term Monday night through Thursday
The cold front will move through the region Monday night into
Tuesday morning, bringing a brief bout of rain. High pressure will
quickly build in behind the front Tuesday afternoon, bringing dry
conditions. The high will prevail into Wednesday. Models start to
diverge on Thursday, but the general consensus points towards a low
rainfall risk.

Aviation 15z Friday through Tuesday
Vfr through the 12z TAF period.

Extended aviation outlook: flight restrictions are possible with a
cold front Monday night into Tuesday morning.

Marine
Today: west winds this morning will back to the southwest this
afternoon and increase slightly. Speeds will remain less than 15
kt with seas 1-2 ft nearshore and 2-3 ft offshore.

Tonight: southwest winds will once again veer to the west
overnight. Speeds will similarly remain less than 15 kt with
seas 1-2 ft throughout.

Saturday through Tuesday: tranquil conditions will prevail through
the weekend as high pressure hovers over the region. A cold front
will move through the region Monday night into Tuesday morning,
bringing a brief increase in winds seas. High pressure will build
behind the front later Tuesday.

Equipment
The kclx radar is out of service until further notice. Repairs
are ongoing. Adjacent radars include: kltx, kcae, kjgx, kvax and
kjax.

The downtown charleston observation site (chls1 kcxm) remains
out of service until further notice.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term... Rjb
short term...

long term...

aviation...

marine...

equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 24 mi69 min SW 7 G 8 45°F 44°F1027.7 hPa (+0.6)
SAXG1 - Sapelo Island Reserve, GA 37 mi69 min W 4.1 46°F 1028 hPa (+1.0)20°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 45 mi79 min W 7.8 G 7.8 44°F 51°F2 ft1028.1 hPa (+1.1)26°F

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA11 mi73 minWSW 610.00 miFair49°F15°F26%1027.1 hPa
Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA13 mi2.2 hrsSW 510.00 miFair42°F17°F37%1027.4 hPa
Savannah-Hilton Head International Airport, GA15 mi76 minWSW 710.00 miA Few Clouds49°F15°F26%1027.7 hPa

Wind History from SVN (wind in knots)
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Last 24hrNW7NW8N10N6NW7W6W5SW4SW3W5W4CalmCalmW4W5W4CalmW5W4SW4W5W5W6W7
1 day agoW10W11
G19
W16NW13
G19
NW15W10W13NW14NW15NW13NW10W9W7W9W8NW8NW9NW7NW9NW7NW10NW8NW12NW7
2 days agoCalmE4E3SE5SE6E7E4SE4CalmCalmCalmCalmCalmCalmCalmW3CalmW5CalmW8NW8NW11NW12NW10

Tide / Current Tables for Highway bridge, Ogeechee River, Georgia
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Highway bridge
Click for Map
Fri -- 12:18 AM EST     0.95 feet High Tide
Fri -- 07:24 AM EST     Sunrise
Fri -- 07:40 AM EST     -0.01 feet Low Tide
Fri -- 09:02 AM EST     Moonrise
Fri -- 12:44 PM EST     1.05 feet High Tide
Fri -- 05:47 PM EST     Sunset
Fri -- 08:16 PM EST     -0.01 feet Low Tide
Fri -- 08:16 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.90.80.70.50.30.1000.20.50.81110.90.70.50.30.1-00.10.30.7

Tide / Current Tables for Fort McAllister, Ogeechee River, Georgia
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Fort McAllister
Click for Map
Fri -- 04:27 AM EST     -0.17 feet Low Tide
Fri -- 07:24 AM EST     Sunrise
Fri -- 09:01 AM EST     Moonrise
Fri -- 10:09 AM EST     7.06 feet High Tide
Fri -- 05:03 PM EST     -0.10 feet Low Tide
Fri -- 05:47 PM EST     Sunset
Fri -- 08:16 PM EST     Moonset
Fri -- 10:20 PM EST     6.33 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.83.420.7-0.101.33.25.16.57.16.864.83.21.70.4-0.10.52.145.56.36.2

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 (12,3,4,5)
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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.