Saturday, August18, 2018 L-36.com


Marine Weather and Tides
Statesboro, GA

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Sunrise 6:52AMSunset 8:09PM Saturday August 18, 2018 12:26 PM EDT (16:26 UTC) Moonrise 1:20PMMoonset 12:00AM Illumination 47% Phase: First Quarter Moon; Moon at 7 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- 953 Am Edt Sat Aug 18 2018
Rest of today..SW winds 10 to 15 kt, becoming S 15 kt with gusts to 20 kt late. Seas 2 to 3 ft, building to 3 ft.
Tonight..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms in the afternoon.
Sun night..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Mon..SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 ft. A slight chance of showers and tstms.
Mon night..S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Tue..SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms.
Tue night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Wed..SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms.
Wed 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 953 Am Edt Sat Aug 18 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. The area will be situated between an inland trough and atlantic high pressure through the first part of next week. A front will approach the area from the west towards the middle of next week, then stall over or near the region through the end of the 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 181418
afdchs
area forecast discussion
national weather service charleston sc
1018 am edt Sat aug 18 2018

Synopsis
The area will be situated between an inland trough and atlantic
high pressure through the first part of next week. A front will
approach the area from the west towards the middle of next
week, then stall over or near the region through the end of the
week.

Near term through tonight
Today: the main forecast challenge is timing the rain chances
and based on the latest guidance we have lowered slowed chances
this afternoon. Looks like there could be some showers and
storms along the sluggish sea breeze this afternoon and then
farther inland later due to convection pushing east from
central sc ga. The modified 12z chs sounding indicates similar
environmental conditions compared to yesterday with plentiful
moisture, moderate instability and low-moderate dcape. Deep
layer shear is also weak but likely just strong enough to get a
bit of organization to convection inland so a few strong to
possibly severe storms may occur, mainly well inland late in the
afternoon. Also, heavy rainfall is likely with the stronger
convection but the flooding risk is low as storm motions
shouldn't be too slow. Highs will once again top out in the
lower 90s away from the beaches with heat indices peaking near
100 degrees most areas.

Tonight: inland convection is expected to consolidate closer to
sunset as mid-level shortwave energy approaches from the west
and southern south carolina becomes situated beneath an area of
upper divergence associated with the right entrance region of a
250 jet streak. The various cams are still wavering a bit on
timing and coverage of the primary showers TSTM cluster this
evening, but a fairly uniform signal of convection impacting
much of the interior into the charleston metro area can be
identified. Will limit pops to 20-50% for now, highest interior
southeast georgia into the charleston metro area, given there
are still some differences noted in the various cams. If both
the rap and h3r begin to converge a more consolidated
timing placement scenario later today, then pops may need to be
increased into at least the likely category. Most of the
shower TSTM activity should push offshore by 19 06z as shortwave
energy exits off to the northeast and weak dnva filters in from
the west and southwest. There will be a continued risk for
locally heavy rainfall and flooding. Lows will range from the
lower 70s inland to the upper 70s near 80 at the beaches.

Short term Sunday through Tuesday
Sunday: in the morning the mid-levels will consist of a weak
trough to our north, generally stretching from the mid-atlantic
states into the northeastern states. To our east will be a broad
high offshore. To our west will be a ridge stretching across
the upper and mid ms valley. As the day progresses the weak
trough will lift into new england. Though, a weak disturbance
within it should pass over our area. The broad high offshore is
forecasted to build towards the coast, with it's periphery
stretching into our area. Meanwhile, the ridge will move
eastward, passing to our north late at night. At the surface, a
trough will be inland. An east to west stationary front is
forecasted to stretch from the mid- atlantic states into the tn
valley, meandering through the day and into the night.

Meanwhile, high pressure will be in the atlantic. Pwats will
range from 2- 2.15". This is towards the higher end of the climo
scale for chs for this time of year. The setup will feature
showers and thunderstorms. Pops are highest inland and taper
towards the coast. However, they may need to get raised further.

As for instability, there is some in place. The GFS indicates
showalter values exceeding minus 2 in large swaths of our area,
along with blcapes ~1,500 j kg. Though, dcapes are barely a few
hundred and shear is lacking. The thing to watch will be how the
mid-level disturbance helps initiate enhance the storms.

Certainly some stronger storms could produce gusty winds. But
heavy rainfall may be the greater threat. Though, mid-level
winds may be strong enough to move the storms along, hence
limiting the flood potential. Temperatures will be typical of
august.

Monday: in the morning the mid-levels will consist of broad high
pressure in the atlantic, with its periphery stretching into our
area. This high will connect to a ridge that will stretch to our
north. Meanwhile, a trough will be over the plains states. As the
day progresses the ridge will move eastward and weaken slightly.

Meanwhile, the broad high in the atlantic will try to strengthen and
inch its way towards us. However, it appears to get pushed away
later by the eastward moving trough, which will stretch from the
great lakes region into the lower ms valley by the nighttime period.

At the surface, low pressure over or near mo in the morning will
move to the great lakes region by the overnight hours. This low will
pull a warm front (already to our north) with it and drag a cold
front to our west towards us. All this while a trough is just inland
of us. Additionally, high pressure will be hovering over bermuda.

There appears to be a moisture gradient starting to setup. Pwats may
be lower than 2" across our ga counties and above 2" across our sc
counties. Likewise, the pops generally reflect this, being the
highest across northern berkeley county, then tapering as one heads
south and towards the coast. Instability appears to be similar as on
Sunday. However, dcapes are forecasted to be much higher in ga,
generally in areas with the lowest pops. Certainly we'll need to
monitor this for wind potential. Also, similar to Sunday heavy
rainfall could be a threat. Though, mid-level winds may be strong
enough to move the storms along, hence limiting the flood potential.

Tuesday: in the morning the mid-levels will consist of a weak ridge
just off the east coast. At the same time a trough will stretch from
the great lakes region into the lower ms valley. As the day
progresses the ridge will get pushed away by the eastward moving
trough, which is forecasted to stretch from the great lakes region
down into the southeast overnight. At the surface, low pressure over
the great lakes region in the morning will zoom into canada as the
day progresses. The low will drag with it a cold front to our west,
which is forecasted to approach our region during the overnight
hours. Also, in front of the front will be a weak surface trough.

Moisture is forecasted to increase ahead of the front, but there are
variations regarding how much and when. Even instability is not
overly impressive. With this in mind, we're only going with chance
pops. Temperatures are expected to be a few degrees above
normal.

Long term Tuesday night through Friday
Models are in fairly good agreement showing a long wave trough over
the eastern half of the country Tuesday night. This trough will
gradually shift eastward and then lift to the north into Friday. At
the surface, a front is forecasted to stall over or nearby our area
during this time period. This will lead to above normal pops and
near or maybe even below normal temperatures. But if the front
positions itself further offshore, then large changes in the
forecast would be needed.

Aviation 14z Saturday through Wednesday
Vfr for much of the period. While an isolated shower TSTM could
impact either terminal early-mid afternoon, the better chances
for TSTM impacts look to occur during the early evening hours.

Latest data supports kchs seeing more meaningful impacts from
showers tstms. Will carry prevailing 6sm -tsra with a tempo 4sm
tsra 00-03z to trend. Some intensity and timing adjustments will
likely be needed as the day progresses. At ksav, the greatest
concentration of showers tstms looks to pass to the north of the
terminal, although the tail end of this activity could impact
the terminal. Will carry a tempo 22-01z for 4sm tsra for now.

The bulk of the shower TSTM activity should end by late evening.

Extended aviation outlook: the weather pattern could cause brief
flight restrictions due to showers thunderstorms, especially in the
afternoon evening.

Marine
Today tonight: southerly flow regime will hold in place,
similar to the past several days. South southwest winds will
peak around 15 kt, with some winds near 20 kt at times. Seas
will average 2-4 ft, highest near the gulf stream.

Sunday through Wednesday: the coastal waters will be situated
between an inland trough and high pressure in the atlantic for
the first part of next week. A front will approach the area from
the west towards the middle of next week, then stall over or
near the region through the end of the week. These features and
the resulting synoptic pattern will lead to mainly southwest
winds. The highest winds are expected Sunday afternoon into
Sunday evening due an elevated pressure gradient. Wind gusts at
this time should peak around 20 kt. Though, a few gusts could
briefly approach 25 kt across the northernmost portion of the
charleston waters late Sunday afternoon. However, no marine
headlines are expected. Winds could again become elevated as the
front approaches late Tuesday into Wednesday. As for seas, they
will be their highest Sunday and again Tuesday into Wednesday,
peaking in the 3-4 ft range. The rest of the time they should
hover around 2-3 ft.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term... Rjb
short term...

long term...

aviation...

marine...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 55 mi45 min SW 7 G 11 86°F 84°F1020.2 hPa
ACXS1 - ACE Basin Reserve, SC 73 mi102 min SW 2.9 84°F 1020 hPa74°F
SAXG1 - Sapelo Island Reserve, GA 74 mi87 min W 6 85°F 1020 hPa (+0.0)74°F

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Statesboro, Statesboro-Bulloch County Airport, GA6 mi52 minWSW 410.00 miPartly Cloudy84°F73°F71%1019.6 hPa
Claxton Evans County Airport, GA16 mi32 minSSW 610.00 miPartly Cloudy87°F76°F70%1019.6 hPa
Sylvania, Plantation Airpark, GA19 mi32 minW 5 miFair85°F76°F76%1020 hPa

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Last 24hrCalmSW7W8S7S6S6W6CalmS4S7SW4S3S5S3S4CalmCalmS3CalmS3SW3SW5SW5SW4
1 day agoSW7SW6SW7S6SW4W5SW5SW4CalmCalmS7SW14
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2 days agoS6SE3S4CalmCalmS5
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Tide / Current Tables for Purrysburg Landing, Savannah River, South Carolina
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Purrysburg Landing
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Sat -- 12:32 AM EDT     Moonset
Sat -- 03:49 AM EDT     First Quarter
Sat -- 04:30 AM EDT     3.01 feet High Tide
Sat -- 06:50 AM EDT     Sunrise
Sat -- 12:02 PM EDT     0.15 feet Low Tide
Sat -- 02:16 PM EDT     Moonrise
Sat -- 05:20 PM EDT     3.17 feet High Tide
Sat -- 08:05 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.71.62.52.932.82.31.71.10.70.30.20.41.22.12.83.13.12.82.41.81.30.8

Tide / Current Tables for S.C.L. RR. bridge, Savannah River, Georgia
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S.C.L. RR. bridge
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Sat -- 12:32 AM EDT     Moonset
Sat -- 03:49 AM EDT     First Quarter
Sat -- 04:06 AM EDT     6.25 feet High Tide
Sat -- 06:50 AM EDT     Sunrise
Sat -- 11:33 AM EDT     0.31 feet Low Tide
Sat -- 02:16 PM EDT     Moonrise
Sat -- 04:56 PM EDT     6.60 feet High Tide
Sat -- 08:05 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.82.34.15.66.26.15.44.331.910.40.41.53.356.26.66.35.54.43.22.21.3

Weather Map and Satellite Images
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Wind Forecast for Charleston, SC (12,3,4,5)
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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.