Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Statesboro, GA

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:44AMSunset 8:05PM Wednesday April 25, 2018 4:32 AM EDT (08:32 UTC) Moonrise 2:52PMMoonset 3:19AM Illumination 75% Phase: Waxing Gibbous; Moon at 10 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- 307 Am Edt Wed Apr 25 2018
Today..SW winds 10 to 15 kt. Seas 3 to 4 ft.
Tonight..W winds 5 to 10 kt. Seas 2 to 3 ft.
Thu..W winds 5 kt, becoming S in the afternoon. Seas 2 to 3 ft.
Thu night..S winds 10 kt, becoming sw after midnight. Seas 3 to 4 ft. A slight chance of showers.
Fri..SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft.
Fri night..SW winds 5 to 10 kt, becoming W after midnight. Seas 2 ft.
Sat..NW winds 5 to 10 kt. Seas 2 ft.
Sat night..W winds 5 kt. Seas 1 foot.
Sun..NE winds 5 to 10 kt. Seas 2 ft.
Sun night..E winds 5 to 10 kt. Seas 2 to 3 ft.
AMZ300 307 Am Edt Wed Apr 25 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Low pressure will develop across the lower gulf coast today then move north of the region by early Friday, followed by a cold front Friday night. High pressure will then build into the region through Sunday and will prevail through next week.

7 Day Forecast for Marine Location Near Statesboro, GA
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location: 32.42, -81.81     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 250744
afdchs
area forecast discussion
national weather service charleston sc
344 am edt Wed apr 25 2018

Synopsis
Low pressure will develop across the lower gulf coast tonight
then move north of the region by early Friday, followed by a
cold front Friday night. High pressure will then build into the
region through Sunday and will prevail through next week.

Near term through tonight
Pre-dawn: temps have been slow to fall across the forecast area
overnight as southwest winds have been able to keep the lowest
levels stirred up to this point. Skies have cleared and winds
may tend to weakly decouple inland toward daybreak, thus some
upper 50s are still expected west of the coastal corridor.

Today: low pressure along the mid atlantic coast this morning
is forecast to lift toward southeast new england by early this
evening. Upper level troughing will lose influence over the
carolinas, while deep layered flow over the region becomes more
west-northwest. Mid level subsidence and low level offshore
flow will result in dry weather today with plenty of morning
sunshine warming temps into the mid 70s by midday most areas.

This afternoon, scattered to broken cumulus and stratocu are
expected to develop across south carolina and then flatten out
below a strong subsidence inversion aloft later in the day.

Some of these clouds could result in slight cooler late day
temps across northern zones but the sinking west flow is
expected to allow much of the coastal corridor to reach 80
degrees this afternoon with at least upper 70s well inland. West
winds will average 10-15 mph this afternoon but it should be
locally breezy along the charleston county resultant sea breeze
during the afternoon, especially if skies remain sunnier rather
than cloudier between 2 pm and 6 pm.

Tonight: quiet weather is on tap with most areas under mainly
clear skies. A weak backdoor front may sneak into the sc zones
overnight but have little impact to forecast elements. Lows will
be in the 56-60 degree range most areas.

Short term Thursday through Saturday
Thursday and Thursday night: a vigorous upper trough and associated
surface low pressure will approach the region from the west. Forcing
for ascent should support an area of showers thunderstorms west of
the region Thursday, but guidance suggests that any precipitation
will not arrive in our area before late afternoon, followed by
highest pops during the first half of Thursday night.

While skies will become mostly cloudy Thursday, daytime pops are
limited to slight chance chance inland during the late afternoon.

Near normal high temps in the upper 70s lower 80s are expected away
from the beaches.

The upper trough will open, become negatively tilted and will begin
to lift northeast Thursday night. However, guidance differs
regarding the details timing of the transition of the upper trough
from a closed low to a weaker open wave, and this in turn will
determine whether decent coverage of showers arrives to produce
measurable rainfall at many locations or if upstream convection
tends to fall apart as it approaches the southeast coast. The latest
forecast indicates Thursday evening pops ranging from 40-50 percent
north west to 15-25 percent far south, but adjustments will no doubt
be required within subsequent forecasts. Also, while instability
remains unimpressive, dynamic forcing for ascent within the
warm moist conveyor belt should support eastward translation of
upstream convection, justifying a slight chance of thunderstorms
mainly north west Thursday evening.

Friday: cannot rule out a few showers within a persistent surface-
850 mb trough, especially along the sea breeze during the afternoon.

However, residual moisture appears meager, so rather than blanket
the entire area with slight chance pops opted to hold pops below 15
percent with no explicit mention of precipitation. Even if a couple
of showers manage to develop, most locations will remain rain-free.

Otherwise, expect high temps in the mid upper 70s away from the
beaches.

Friday night and Saturday: another upper trough will quickly advance
east and will push a cold front through the region. Latest guidance
generally agrees that moisture return ahead of these features should
remain off the coast, so slight chance pops are limited to coastal
waters Friday night into Saturday. Otherwise, the cold front will
bring drier air but little change in temps as highs average close to
80f Saturday afternoon.

Long term Saturday night through Tuesday
No rain is expected through at least the middle of next week.

Surface high pressure will build from the north this weekend. Then,
the surface high will shift south over the region as an upper ridge
builds over the region by early next week, and this regime will then
prevail through the week. As the surface high migrates south,
persistent onshore flow will commence later this weekend and will
continue next week. Thus, temperatures will remain close to normal
for late april early may, featuring highs in the upper 70s lower 80s
inland and upper 60s lower 70s on the beaches and lows in the 50s
inland 60s at the coast.

Aviation 07z Wednesday through Sunday
Vfr conditions will prevail at kchs and ksav through 06z Thursday.

Extended aviation outlook: brief flight restrictions possible in
showers Thursday night. Otherwise,VFR through this period.

Marine
A modest surface pressure gradient keeping winds closer to 15 kt
over the coastal waters early this morning. The flow is gradually
veering to a more west component and seas were slowly subsiding
pre-dawn. We lowered the SCA for charleston county waters given
latest trends. Winds later today will be mainly SW with speeds
near 15 kt. Weaker SW to W flow tonight as the gradient slackens.

Seas will range from 4-5 ft near shore charleston waters to 3-4
ft ga waters today. We maintained the SCA for outer ga waters
until mid afternoon but it could be lowered a bit sooner.

Thursday through Monday: winds seas will remain below SCA levels
through this weekend. Low pressure passing inland Thursday night
into Friday and a cold front pushing through the waters Friday
night early Saturday will contribute to changing wind directions.

Seas of 2 to 4 ft Thursday-Friday will subside to 1 to 3 ft for a
time this weekend.

Seas will build in response to increasing east northeast winds as
high pressure builds from the north then shifts south later this
weekend into early next week, and 6 ft seas could push into ga
waters beyond 20 nm by early next week.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... Small craft advisory until 2 pm edt this afternoon for amz374.

Near term...

short term... Spr
long term... Spr
aviation... Spr
marine... Spr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 55 mi44 min W 6 G 8 64°F 66°F1010.5 hPa
ACXS1 - ACE Basin Reserve, SC 73 mi107 min N 2.9 65°F 58°F
SAXG1 - Sapelo Island Reserve, GA 74 mi92 min WSW 8.9 66°F 1011 hPa (-2.0)62°F

Wind History for Fort Pulaski, GA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Statesboro, Statesboro-Bulloch County Airport, GA6 mi37 minW 610.00 miFair62°F53°F74%1010.5 hPa
Claxton Evans County Airport, GA16 mi37 minSW 510.00 miFair62°F57°F86%1010.8 hPa
Sylvania, Plantation Airpark, GA19 mi37 minW 310.00 miFair61°F58°F91%1010.5 hPa

Wind History from TBR (wind in knots)
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Last 24hrSW3CalmW3SW7W5SW5SW7W8
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W8W3CalmCalmCalmW3W5W5W6W6
1 day agoE8SE8
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E7E4E5E6CalmE3SE6E7SE6SE6SE6SE6N3SE3S6SE4SE3S4SW4
2 days agoCalmCalmE4E5CalmE7SE4
G14
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E5SE7SE4E6SE4SE5SE4

Tide / Current Tables for Purrysburg Landing, Savannah River, South Carolina
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Purrysburg Landing
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Wed -- 02:27 AM EDT     0.01 feet Low Tide
Wed -- 04:15 AM EDT     Moonset
Wed -- 06:44 AM EDT     Sunrise
Wed -- 07:06 AM EDT     3.15 feet High Tide
Wed -- 03:02 PM EDT     -0.04 feet Low Tide
Wed -- 03:49 PM EDT     Moonrise
Wed -- 07:50 PM EDT     3.11 feet High Tide
Wed -- 08:01 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.40.10.10.922.83.23.12.82.31.71.20.60.2-00.31.32.32.93.132.62.1

Tide / Current Tables for S.C.L. RR. bridge, Savannah River, Georgia
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S.C.L. RR. bridge
Click for Map
Wed -- 01:59 AM EDT     0.02 feet Low Tide
Wed -- 04:16 AM EDT     Moonset
Wed -- 06:42 AM EDT     6.56 feet High Tide
Wed -- 06:44 AM EDT     Sunrise
Wed -- 02:33 PM EDT     -0.07 feet Low Tide
Wed -- 03:49 PM EDT     Moonrise
Wed -- 07:26 PM EDT     6.46 feet High Tide
Wed -- 08:01 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.400.92.956.36.56.25.44.33.11.90.800.11.53.65.56.46.45.953.8

Weather Map and Satellite Images
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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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (4,6,7,8)
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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.