Tuesday, May21, 2019 L-36.com


Marine Weather and Tides
Wilmington Island, GA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:21AMSunset 8:19PM Tuesday May 21, 2019 7:08 PM EDT (23:08 UTC) Moonrise 10:10PMMoonset 7:40AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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- 648 Pm Edt Tue May 21 2019
Tonight..S winds 10 to 15 kt early, diminishing to 10 kt. Seas 2 ft.
Wed..S winds 5 to 10 kt, becoming se in the afternoon. Seas 2 ft.
Wed night..SE winds 5 to 10 kt. Seas 2 ft.
Thu..SE winds 5 to 10 kt. Seas 2 to 3 ft.
Thu night..S winds 5 to 10 kt. Seas 2 to 3 ft.
Fri..S winds 5 to 10 kt. Seas 2 ft.
Fri night..SW winds 10 kt. Seas 2 ft.
Sat..SW winds 10 kt. Seas 2 ft.
Sat night..S winds 5 to 10 kt. Seas 2 ft.
Sun..S winds 5 to 10 kt. Seas 2 ft.
Sun night..S winds 10 kt. Seas 2 ft.
AMZ300 648 Pm Edt Tue May 21 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will build over the region this week and will linger into early next week.


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


Area Discussion for - Charleston, SC
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Fxus62 kchs 212258
afdchs
area forecast discussion
national weather service charleston sc
658 pm edt Tue may 21 2019

Synopsis
High pressure will build over the region this week and will
linger into early next week.

Near term until 6 am Wednesday morning
Tonight: a mid-level ridge will be over the region. At the
surface, a weak backdoor cold front is expected to reach near
the santee river by daybreak. This front could bring some clouds
to our northernmost counties late. Otherwise, conditions will be
rainfree with unseasonably warm weather to prevail. Lows will
be in the upper 60s inland and the lower to mid 70s at the
coast. The record high min at kcxm could be challenged (see
climate section below).

Short term 6 am Wednesday morning through Friday
Short term guidance indicates the center of a h5 ridge will settle
over the southeast u.S. Wednesday through Friday. H85 temperatures
on Wednesday are forecast to range from 16 to 18c, warming to around
20c by Friday. On Wednesday, the temperature forecast will be
complicated by the position of a old front, likely dissipating over
the lowcountry Wednesday afternoon. In addition, a sfc ridge will
build south from high pressure centered off the mid-atlantic states.

Flow around the high should result in sfc winds to turn from the se,
likely supporting a sea breeze Wednesday afternoon. The passage of
the sea breeze and weak instability should support a few showers
along and west of the breeze. This scenario is supported by the
majority of the cams, I will highlight the region with schc pops for
showers. High temperatures are forecast to range from the mid to
upper 80s across the chs tri-county to the mid 90s across SE ga. On
Thursday, sfc high pressure is expected to shift over the western
atlantic as the mid-level strengthens over the cwa. The llvl onshore
flow and ridging aloft should maintain sbcinh through the day.

Thursday should be hot and dry, with temperatures 1-2 degrees warmer
than Wednesday. Llvl thicknesses should increase across the region
on Friday, maintaining sbcin through the daylight hours. Using a
blend of mos, high temperatures are forecast to range from the low
to mid 90s along the coast to the upper 90s across the inland
counties. Afternoon dewpoints may mix into the lower to mid 60s
across the inland counties, with near 70 along the coast. The
combination of the temperatures and dewpoints are expected to result
in heat index values around 100 degrees west of the coastal
counties.

Long term Friday night through Tuesday
The hot and dry pattern will linger this weekend into next week. The
h5 ridge is forecast to remain centered over the southeast u.S.

Through this weekend, with the ridge shifting south over the gulf of
mexico early next week. However, a broad and strong h7 ridge will
remain centered over the deep south, with west and downslope h85
winds Sunday night into Tuesday. This pattern is forecast to
maintain h85 temps around 20c and 1000-850mb thicknesses above
1430m. Using a blend wpc and mos, high temperatures are forecast to
range from the mid to upper 90s across the coastal counties with low
100s across the inland counties. The high temperature records for
mon and tues may range very close to record highs, see climate
section below. Heat index values are forecast to reach heat advisory
criteria (105 degrees) across portions of SE ga sat-tues, within 1-2
degrees of criteria elsewhere across the inland counties. In fact,
the climate prediction center has highlighted the forecast area with
a high risk of excessive heat for 5 28 - 5 30. The heat wave
potential will be highlighted in the hwo.

Aviation 00z Wednesday through Sunday
Vfr will dominate. However, with the interaction of the sea
breeze and a nearby cold front on Wednesday there might be a
shra or possibly a tsra at or near kchs. Odds of this happening
though are too remote to consider mention in the 00z TAF set.

Extended aviation outlook:VFR.

Marine
Tonight: a weak pressure gradient will bring generally south winds
15 kt or less. Seas will be about 2 ft. A backdoor cold front
will approach the santee river close to sunrise, shifting winds
more e-se across the far northern waters after 5 or 6 am.

Wednesday through Sunday: high pressure will remain over the marine
zones through this weekend. Conditions are forecast to remain below
small craft advisory criteria. Seas through the period should range
from 1-3 feet, with 1-2 feet common Saturday. Winds are expected to
remain generally from the south around 10 kts.

Climate
Record for 05 22...

station record high min year
------- --------------- ----
kcxm 76 1998
record for 05 23...

station record high min year
------- --------------- ----
kcxm 77 1998
records for 05-27...

station record high year(s)
------- ----------- -------
kchs 98 1989
kcxm 95 1962, 1926
ksav 98 1989, 1962
records for 05-28...

station record high year(s)
------- ----------- -------
kchs 97 1967, 1964
kcxm 93 2000
ksav 96 1964, 1898

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term...

long term... Dpb
aviation...

marine...

climate...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 6 mi39 min S 6 G 9.9 83°F 78°F1013.9 hPa
41033 37 mi61 min SSW 9.7 G 14 79°F 81°F1013.3 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 42 mi79 min S 9.7 G 12 78°F 79°F2 ft1013.5 hPa (-0.8)71°F
SAXG1 - Sapelo Island Reserve, GA 43 mi69 min SSE 8.9 87°F 1013 hPa (-1.0)74°F
ACXS1 - ACE Basin Reserve, SC 48 mi84 min S 1.9 85°F 1013 hPa75°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, GA8 mi2.2 hrsSE 810.00 miFair81°F73°F79%1012.8 hPa
Savannah-Hilton Head International Airport, GA14 mi2.3 hrsS 1110.00 miPartly Cloudy90°F69°F50%1012.8 hPa
Hilton Head Island, Hilton Head Airport, SC22 mi79 minS 1010.00 miFair82°F75°F79%1013.9 hPa

Wind History from SVN (wind in knots)
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Last 24hrSE11SE11S9S6S6S5S4SW3S4SW4W3CalmCalmCalmS4SW6S4NW3S5SW6SE9W5SE15
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1 day agoSE11SE10
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SE11SE8SE7SE7SE6SE7S5S3S4CalmCalmCalmS6SW5SW7SW4SW6W6W7SW6SE8SE9
2 days ago--S9S8S7S8S6S7S6S6S3S3CalmCalmCalmCalmS4S10SE10SE10S11
G15
S9SE12SE12S10

Tide / Current Tables for Savannah Sheraton Resort Hotel, Wilmington River, Georgia
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Savannah Sheraton Resort Hotel
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Tue -- 04:56 AM EDT     -0.27 feet Low Tide
Tue -- 06:23 AM EDT     Sunrise
Tue -- 08:40 AM EDT     Moonset
Tue -- 10:50 AM EDT     7.60 feet High Tide
Tue -- 04:54 PM EDT     0.09 feet Low Tide
Tue -- 08:18 PM EDT     Sunset
Tue -- 11:10 PM EDT     Moonrise
Tue -- 11:17 PM EDT     8.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.16.54.42.20.4-0.30.42.14.26.17.37.675.63.92.10.60.10.82.54.66.57.98.6

Tide / Current Tables for Savannah River Entrance, Georgia Current (2) (expired 1999-12-31)
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Savannah River Entrance
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Tue -- 02:54 AM EDT     -2.86 knots Max Ebb
Tue -- 06:22 AM EDT     Sunrise
Tue -- 06:25 AM EDT     0.00 knots Slack
Tue -- 08:36 AM EDT     1.46 knots Max Flood
Tue -- 08:39 AM EDT     Moonset
Tue -- 11:39 AM EDT     -0.00 knots Slack
Tue -- 03:08 PM EDT     -2.46 knots Max Ebb
Tue -- 06:25 PM EDT     0.00 knots Slack
Tue -- 08:17 PM EDT     Sunset
Tue -- 08:51 PM EDT     1.78 knots Max Flood
Tue -- 11:09 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-1.7-2.6-2.9-2.5-1.7-0.50.61.31.410.5-0.3-1.2-2-2.5-2.2-1.5-0.50.71.51.81.40.8

Weather Map and Satellite Images
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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.
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Wind Forecast for Charleston, SC (19,4,5,8)
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Ground Weather Radar Station Charleston, SC
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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.