Friday, August23, 2019 L-36.com


Marine Weather and Tides
Wilmington Island, GA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:52AMSunset 8:00PM Friday August 23, 2019 9:03 AM EDT (13:03 UTC) Moonrise 11:54PMMoonset 1:02PM Illumination 45% Phase: Third Quarter Moon; Moon at 23 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
    EDIT      (on/off)   Help
AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 706 Am Edt Fri Aug 23 2019
Today..SE winds 5 to 10 kt. Seas 1 to 2 ft.
Tonight..S winds 5 to 10 kt. Seas 2 ft.
Sat..SE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms in the afternoon.
Sat night..E winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Sun..NE winds 5 to 10 kt. Seas 2 ft, building to 3 ft in the afternoon. Showers likely with a chance of tstms.
Sun night..NE winds 10 kt. Seas 2 to 3 ft. A chance of showers. A chance of tstms, mainly in the evening.
Mon..NE winds 5 to 10 kt. Seas 2 ft. Showers and tstms likely.
Mon night..SE winds 5 to 10 kt. Seas 2 ft. A chance of showers with a slight chance of tstms.
Tue..S winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Tue night..SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 706 Am Edt Fri Aug 23 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Atlantic high pressure will prevail today, before a cold front approaches from the north tonight. The front will cross through the area on Saturday then will stall offshore Sunday. Low pressure could develop along the front and track northeast and offshore through the first half of next week. Another cold front could impact the region late next week.


7 Day Forecast for Marine Location Near Wilmington Island, GA
   Hourly   EDIT   Help
location: 32, -81     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kchs 231126
afdchs
area forecast discussion
national weather service charleston sc
726 am edt Fri aug 23 2019

Synopsis
Atlantic high pressure will prevail today, before a cold front
approaches from the north tonight. The front will cross through
the area on Saturday then will stall offshore Sunday. Low
pressure could develop along the front and track northeast and
offshore through the first half of next week. Another cold
front could impact the region late next week.

Near term through tonight
Today: mid level ridging will gradually decay along and just
off the southeast coast while the overall synoptic pattern
remains persistent across the region. A weak mid level vort seen
on early morning GOES water vapor satellite imagery over south
central ga is forecast to drift northeast over the csra and into
the sc midlands later today. Dry weather this morning along
with plenty of surface heating, will lead to another warm and
humid afternoon across the region with highs in the lower to mid
90s and heat indices in the 104-106 degree range. Around mid
afternoon, scattered convection should be on the increase across
inland areas of southeast ga and sc. Slightly deeper moisture
and broad low level moisture convergence along with the weak mid
level feature all favor a greater coverage of tstms along and
inland from i-95. A few stronger tstms in this region are likely
with an isolated severe TSTM not out of the question in our far
inland zones adjacent to the csra and midlands. Along the
coastal corridor, we think convection will be mainly isolated
this afternoon with the advancing sea breeze and we maintained
only slight chance pops for the most part to the east of u.S.

17.

Tonight: deeper moisture ahead of a cold front will be sagging
into sc overnight. We maintained some slight chance overnight
pops to account for some nocturnal convection north of the
savannah river. Otherwise, it should be mainly dry in ga.

Models suggest some patchy inland fog is possible well inland
but confidence to include in the forecast was poor at this time.

Short term Saturday through Monday
A fairly unsettled period on tap as a cold front impacts the area.

The front is progged to drop south into the forecast area on
Saturday, then become stationary to the south and east through early
next week. A wave of low pressure could then develop along the
stalled front and lift northeast parallel to the coast. Regardless
of potential development of tropical characteristics, models at this
point are in consensus that this low will stay well offshore.

Given the deep moisture and forcing in play, rain chances will be
higher than normal, particularly Saturday into Sunday. Periods of
heavy rain are expected and some localized ponding flooding in poor
drainage areas will be possible especially with weak storm motions.

The time of greatest concern appears to be Saturday afternoon into
Saturday night. Otherwise, the severe weather threat appears low but
could not rule out a couple stronger storms with the front. On
Monday, there will be a decent gradient in pops with highest rain
chances across southeast georgia zones in proximity to enhanced
convergence and better moisture.

Seasonable temperatures on Saturday will drop a few degrees below
normal Sunday and Monday behind the front.

Long term Monday night through Thursday
Models are in good agreement that low pressure will be lifting
northeast away from the area Monday night into Tuesday. Another cold
front could impact the region later in the period. There are some
discrepancies in regards to convective coverage but with elevated
moisture and shortwave energy, it looks to stay a bit unsettled.

Temperatures are expected to be near normal.

Aviation 12z Friday through Tuesday
Vfr will dominate through 12z Saturday. The greater chances of
shra tsra looks to occur inland from both kchs and ksav this
afternoon and will continue to leave convection our of the tafs
on the 12z cycle.

Extended aviation outlook: periodic flight restrictions expected in
showers thunderstorms at kchs ksav through early next week.

Marine
Through tonight: persistence forecast once again with S to sw
flow below 15 kt and seas 1 to 3 ft, highest well offshore.

Saturday through Wednesday: a cold front will approach from the
north on Saturday and stall in the vicinity through early next week.

An area of low pressure is progged to develop on the front then lift
northeast along it. This set-up will result in a predominantly
northeast flow Sunday into Monday. Conditions at this point look to
remain below small craft advisory criteria, however should the
pressure gradient tighten a bit more between inland high pressure
and the offshore low, wind speeds could come close. No marine
concerns are expected thereafter.

Rip currents: increasing east northeast winds could contribute to an
enhanced risk of rip currents on area beaches late this weekend into
early next week, especially if offshore low pressure develops and
intensifies.

Waterspouts: most recent forecast sounding data shows some
potential for waterspouts this morning. This risk would be
along a convergent line that forms not far off the south
carolina coast during that time. We will carefully monitor for
this potential.

Tides coastal flooding
Astronomical tides will be running close to minor coastal flood
advisory levels next week and onshore winds could lead to even
higher tides, mainly during the evening high tide cycles starting
Monday. In addition, there is the potential for some heavy rain
around the times of high tide which could exacerbate any flooding
issues.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term... Etm
long term... Etm
aviation...

marine...

tides coastal flooding...



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 6 mi52 min WNW 4.1 G 5.1 80°F 84°F1018.3 hPa
41033 37 mi56 min SW 7.8 G 12 84°F 85°F1017.9 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 42 mi74 min WSW 1.9 G 3.9 82°F 82°F2 ft1017.8 hPa (+1.6)78°F
SAXG1 - Sapelo Island Reserve, GA 43 mi64 min Calm 80°F 1018 hPa (+2.0)77°F
ACXS1 - ACE Basin Reserve, SC 48 mi79 min Calm 78°F 1018 hPa78°F

Wind History for Fort Pulaski, GA
(wind in knots)    EDIT      (on/off)   Help
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
W7
SW7
SW8
W8
G11
W5
S4
G9
S9
G12
S7
G11
S7
G11
SE5
S6
G10
S6
G10
S5
G8
S4
S3
S5
G11
S4
G8
S4
G8
S4
G7
S4
G9
SW5
SW3
W5
W5
1 day
ago
SW4
W6
SW4
SW6
G9
SW5
G9
S6
G10
S9
G12
S9
G14
S7
G12
S8
G13
S6
G12
S7
G12
SW6
G10
S3
S3
S4
G7
S6
G12
S8
G14
SW6
G11
SW7
G10
SW4
SW3
W3
2 days
ago
SW2
SW4
G7
SW4
G7
S4
S5
S5
S6
G9
S5
G8
S6
G9
S7
G11
S7
G11
SE7
G11
S6
G9
S7
G10
S5
G8
S4
S6
G9
S6
G10
SW6
G9
SW4
SW4
W2
W3
SW1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA8 mi68 minN 010.00 miFair77°F75°F94%1017.5 hPa
Savannah-Hilton Head International Airport, GA14 mi71 minVar 310.00 miA Few Clouds77°F77°F100%1017.7 hPa
Hilton Head Island, Hilton Head Airport, SC22 mi74 minWSW 510.00 miA Few Clouds77°F77°F100%1018.3 hPa

Link to 5 minute data for KSVN

Wind History from SVN (wind in knots)
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrSW4SW7SW7SW6SE4SE8SE10SE11NE11
G16
E3SE8SE6S5--------S3S3----W3CalmCalm
1 day agoSW5W5SW6SW6CalmS8SE8SE11S10S5S4S6S5S6--------W3--Calm--W3--
2 days agoSW4CalmCalmSE4--S7--SE9--SE10S8SE6SE6S4--------Calm----CalmCalm--

Tide / Current Tables for Savannah Sheraton Resort Hotel, Wilmington River, Georgia
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Savannah Sheraton Resort Hotel
Click for Map
Fri -- 12:14 AM EDT     Moonrise
Fri -- 02:00 AM EDT     7.10 feet High Tide
Fri -- 06:53 AM EDT     Sunrise
Fri -- 08:05 AM EDT     0.94 feet Low Tide
Fri -- 10:58 AM EDT     Last Quarter
Fri -- 02:02 PM EDT     Moonset
Fri -- 02:31 PM EDT     7.97 feet High Tide
Fri -- 07:59 PM EDT     Sunset
Fri -- 08:42 PM EDT     1.72 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
66.87.16.85.74.22.71.50.91.32.54.25.87.17.97.97.15.74.12.81.91.82.33.5

Tide / Current Tables for Savannah River Entrance, Georgia Current (2) (expired 1999-12-31)
   EDIT      (on/off)   Help   One Week of Data
Savannah River Entrance
Click for Map
Fri -- 12:13 AM EDT     Moonrise
Fri -- 02:14 AM EDT     -0.00 knots Slack
Fri -- 06:33 AM EDT     -2.09 knots Max Ebb
Fri -- 06:52 AM EDT     Sunrise
Fri -- 09:53 AM EDT     0.00 knots Slack
Fri -- 10:58 AM EDT     Last Quarter
Fri -- 12:20 PM EDT     1.47 knots Max Flood
Fri -- 02:01 PM EDT     Moonset
Fri -- 02:59 PM EDT     -0.00 knots Slack
Fri -- 07:09 PM EDT     -2.13 knots Max Ebb
Fri -- 07:58 PM EDT     Sunset
Fri -- 10:38 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.20.90.2-0.5-1.1-1.6-2-2-1.6-0.80.10.91.41.30.7-0-0.6-1.2-1.8-2.1-1.9-1.3-0.50.3

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (9,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Charleston, SC
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.