Wednesday, May23, 2018 L-36.com


Marine Weather and Tides
Wilmington Island, GA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:20AMSunset 8:21PM Wednesday May 23, 2018 6:47 AM EDT (10:47 UTC) Moonrise 1:45PMMoonset 1:56AM Illumination 61% Phase: Waxing Gibbous; Moon at 8 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- 330 Am Edt Wed May 23 2018
Today..S winds 5 to 10 kt, increasing to 10 to 15 kt this afternoon. Seas 3 ft. A slight chance of showers and tstms this afternoon.
Tonight..S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A slight chance of showers.
Thu..S winds 5 to 10 kt, becoming se in the afternoon. Seas 2 ft. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon.
Thu night..SE winds 5 to 10 kt. Seas 2 ft. A chance of showers. A chance of tstms, mainly in the evening.
Fri..SE winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Fri night..SE winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms, mainly in the evening.
Sat..SE winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sat night..SE winds 15 kt. Seas 3 to 4 ft. Showers likely with a slight chance of tstms.
Sun..SE winds 15 to 20 kt. Seas 4 to 5 ft. Showers likely with a chance of tstms.
Sun night..S winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers with a slight chance of tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 330 Am Edt Wed May 23 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will remain to the east through Friday while a trough of low pressure lingers to the west. Developing low pressure over the gulf of mexico will slowly move north toward the central gulf coast this weekend, possibly lingering through early next week. This pattern will maintain higher than normal rain chances across southeast south carolina and southeast georgia.

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 230822
afdchs
area forecast discussion
national weather service charleston sc
422 am edt Wed may 23 2018

Synopsis
High pressure will remain to the east through Friday while a
trough of low pressure lingers to the west. Developing low
pressure over the gulf of mexico will slowly move north toward
the central gulf coast this weekend, possibly lingering through
early next week. This pattern will maintain higher than normal
rain chances across southeast south carolina and southeast
georgia.

Near term through tonight
Pre-dawn: patchy low clouds and a few pockets of light fog were
developing inland areas on the edge of some deeper moisture across
central ga and the csra region. We think fog will be no more
than a localized issue as we near dawn. A few light showers may
develop to the west of i-95 close to sunrise but coverage also
on the spotty side. Temps will range from the upper 60s northern
inland areas to the lower 70s southern and coastal areas.

Today: a moist and unsettled weather pattern on tap today as
slightly deeper moisture nudges into the region while a warm
season surface ridge persists offshore close to 30n. Atlantic
ridging will maintain a modest feed of atlantic moisture in the
lower levels. The forecast area can expect another round of
convective rains today, scattered to numerous showers with a
chance of diurnal tstms. Model soundings suggest a convective
temp around 80 degrees with some areas in the lower 80s. Deep
moisture between 850-500 mb along with a weak mid level vort and
some faint upper difluence look best along and west of i-95
this afternoon and this continues to be the region where we
maintained likely pops. Sea breeze convergence and mid level
instability also appear to favor the area from walterboro to
moncks corner but differential heating and mesoscale boundaries
should go a long way as to where concentrated pockets of
convective rains develop. With very low dcapes and warm mid
levels, we believe the risk of strong tstms is quite low. The
more pressing concern would have to be locally heavy downpours
due to slow cell motions and potential for clusters of multicell.

Tonight: deeper moisture tends to linger overnight with little
overall change in the pattern. We maintained some 20-30 pops
into the overnight with somewhat higher chances adjacent to the
csra and midlands and perhaps some of inland ga zones. Clouds
may thin later tonight but there could be more stratus once
again with some patchy fog where clouds become thinner. Lows
will be in the upper 60s to around 70 near the coast.

Short term Thursday through Saturday
A cold front near the santee river should stall out Thursday morning
with atlantic high pressure then prevailing through the end of the
week. By Saturday low pressure over the gulf of mexico should begin
moving north toward the central gulf coast. This pattern will keep a
tropical air mass in place with rain chances staying above normal,
mostly during the afternoon and evening each day. In general we
think the highest chances will be inland near the better moisture,
instability and forcing. Some spots will likely pick up over an inch
through the period. No significant flooding or severe weather is
anticipated at this time. Temperatures will generally be near to
above normal, especially lows.

Long term Saturday night through Tuesday
Not much pattern change late this week into early next week with
high pressure remaining to the east and low pressure over the gulf
of mexico moving north, most likely toward the north-central gulf
coast. The low could stall out near the gulf coast into early next
week. This pattern will mean the tropical air mass will remain in
place across southeast sc ga leading to the continuation of higher
than normal rain chances, especially each afternoon evening.

Temperatures should generally stay near to above normal.

Aviation 08z Wednesday through Sunday
Kchs and ksav should remainVFR through most of the 06z cycle.

However, there is some risk for low stratus and or ground fog at
both sites between 09z and 12z, and a chance for shra tsra in
the afternoon. Any potential for prolonged flight restrictions
remains too limited at this time to show in the forecast.

Extended aviation outlook: a persistent tropical air mass will lead
to higher than normal rain chances into early next week, mainly each
afternoon. Thunder chances will be low however given the limited
instability. Some restrictions will also be possible from morning
low clouds and or fog as well.

Marine
Broad atlantic high pressure will nose into the waters from
the western atlantic through tonight. The forecast remains on
track with south to southwest flow northern waters and south to
southeast flow ga legs. Speeds mainly less than 15 kt with seas
in the 2-4 ft range, highest beyond 20 nm.

Thursday through Monday: the area will remain between low pressure
to the west and high pressure to the east. A tropical cyclone may
develop in the gulf of mexico later this week and track north toward
the north-central gulf coast and this should lead to an increasing
pressure gradient locally so we think winds and seas will be on an
upward trend as a result. Advisory conditions will be possible this
weekend into early next week, especially near the gulf stream.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term... Rjb
long term... Rjb
aviation... Rjb
marine... Rjb


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 mi47 min SW 6 G 9.9 75°F 78°F1019 hPa (-0.0)
41033 37 mi39 min SW 14 G 19 76°F 78°F1018.3 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 42 mi57 min S 12 G 14 75°F 75°F3 ft1018.5 hPa (+0.3)75°F
SAXG1 - Sapelo Island Reserve, GA 43 mi47 min SSW 5.1 72°F 1019 hPa (-0.0)71°F
ACXS1 - ACE Basin Reserve, SC 48 mi62 min Calm 75°F 1018 hPa72°F

Wind History for Fort Pulaski, GA
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
SE4
S7
G15
SW7
SW5
S11
G15
SE8
G11
S10
G15
S6
G10
S6
G9
S6
G9
S6
G11
S8
G12
S10
G13
S5
G9
S6
G9
S6
G9
S4
G7
S4
G8
S4
G11
S7
G13
SW7
G12
SW9
G12
SW7
G10
SW6
G10
1 day
ago
E4
SE4
E7
E11
E11
E12
SE10
G13
E8
G13
SE11
G14
SE8
G11
S7
G11
SE8
G13
SE5
G8
SE4
G7
SE4
SE4
SE4
SE4
SE5
G8
SE4
SE5
SE4
S3
SE4
2 days
ago
SW1
SW2
SW3
SW5
S5
S4
G9
S5
SE5
SE6
G11
SE7
G10
SW4
W4
W3
N1
NE1
E3
NE4
SE3
SE2
SE2
SE2
SE3
SE4
E3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA8 mi1.9 hrsS 510.00 miPartly Cloudy73°F69°F89%1017.9 hPa
Savannah-Hilton Head International Airport, GA14 mi54 minS 710.00 miA Few Clouds71°F69°F94%1018.6 hPa
Hilton Head Island, Hilton Head Airport, SC22 mi52 minSSW 710.00 miMostly Cloudy75°F71°F89%1018.6 hPa

Wind History from SVN (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrCalmSE9
G19
SE5SE4S5SE6S5CalmS5SE9S12
G17
SE9SE9SE8S4S4S4S3S4S3S5S6S5S5
1 day agoCalmNE3NE4E8E8SE8SE5SE11
G16
SE10
G17
SE8--------------E3E4SE4SE3SE3SE3SE3
2 days agoSW3SW3S4S5S6S4SE4SE6S8SE6SE7W3W3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3

Tide / Current Tables for Savannah Sheraton Resort Hotel, Wilmington River, Georgia
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Savannah Sheraton Resort Hotel
Click for Map
Wed -- 02:56 AM EDT     Moonset
Wed -- 03:48 AM EDT     8.24 feet High Tide
Wed -- 06:22 AM EDT     Sunrise
Wed -- 10:13 AM EDT     0.04 feet Low Tide
Wed -- 02:45 PM EDT     Moonrise
Wed -- 04:34 PM EDT     8.08 feet High Tide
Wed -- 08:19 PM EDT     Sunset
Wed -- 10:45 PM EDT     0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.94.96.77.98.27.56.24.42.50.90.10.41.63.35.377.987.25.83.920.60.3

Tide / Current Tables for Savannah River Entrance, Georgia Current
   EDIT      (on/off)   Help   One Week of Data
Savannah River Entrance
Click for Map
Wed -- 01:17 AM EDT     2.13 knots Max Flood
Wed -- 02:55 AM EDT     Moonset
Wed -- 04:52 AM EDT     -0.00 knots Slack
Wed -- 06:21 AM EDT     Sunrise
Wed -- 08:22 AM EDT     -2.17 knots Max Ebb
Wed -- 11:04 AM EDT     0.01 knots Slack
Wed -- 01:52 PM EDT     2.02 knots Max Flood
Wed -- 02:44 PM EDT     Moonrise
Wed -- 05:29 PM EDT     -0.00 knots Slack
Wed -- 08:19 PM EDT     Sunset
Wed -- 09:03 PM EDT     -2.27 knots Max Ebb
Wed -- 11:36 PM EDT     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.72.121.71-0.1-1.2-1.9-2.1-2.1-1.3-0.11.11.921.91.50.6-0.6-1.5-2-2.3-1.9-0.8

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (6,6,7,8)
      (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.