Tuesday, September26, 2017 L-36.com


Marine Weather and Tides
Edisto Beach, SC

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:10AMSunset 7:11PM Tuesday September 26, 2017 8:43 AM EDT (12:43 UTC) Moonrise 11:59AMMoonset 10:39PM Illumination 33% Phase: Waxing Crescent; Moon at 6 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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AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 626 Am Edt Tue Sep 26 2017
Today..NW winds 15 kt, diminishing to 10 kt. Seas 3 to 5 ft.
Tonight..NW winds 5 to 10 kt. Seas 3 to 4 ft.
Wed..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 3 ft.
Wed night..W winds 5 to 10 kt. Seas 2 ft.
Thu..NW winds 5 to 10 kt, becoming sw in the afternoon. Seas 1 to 2 ft.
Thu night..SW winds 5 to 10 kt. Seas 1 to 2 ft.
Fri..NE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms.
Fri night..E winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Sat..NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Sat night..NE winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 626 Am Edt Tue Sep 26 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Hurricane maria will track northward off the southeast u.s. Coast through midweek before turning east-northeast and away from the coast into late week. A cold front will move through the area by early this weekend, followed by high pressure into early next week. Refer to the latest advisory on maria issued by the national hurricane center.

7 Day Forecast for Marine Location Near Edisto Beach, SC
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location: 32.48, -80.32     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 261131
afdchs
area forecast discussion
national weather service charleston sc
731 am edt Tue sep 26 2017

Synopsis
Hurricane maria will track northward off the southeast u.S.

Coast through midweek before turning east-northeast and away
from the coast into late week. A cold front will move through
the area by early this weekend, followed by high pressure into
early next week.

Near term through tonight
This morning: an expanding area of broken to overcast stratus
of georgetown and horry counties of sc will advect into parts
of berkeley county and northern charleston county, before it
erodes or lifts into a stratocumulus or flat cumulus deck by
late morning. Elsewhere skies will be generally sunny.

Today: hurricane maria will pass several hundred miles off the
coast as it moves slowly northward. Her broad circulation will
encompass the vast majority of the area, but large scale
subsidence on the w-sw periphery of the cyclonic flow which will
cover the region, plus a void of moisture above the first mile
or two of the troposphere will provide us with another day free
of rain. Other than few-scattered cirrus in association with
outflow from maria and also in response to blow-off from
convection over S fl, plus scattered stratocumulus cumulus that
develop, skies will be sunny to partly cloudy. With plenty of
insolation and a warm and sinking air mass in place, MAX temps
will reach the upper 80s to near 90f most communities this
afternoon, except for a few mid 80s N of i-26 where the lower
clouds could be a little greater in coverage.

Tonight: maria will continue her motion northward to a position
to the E of CAPE hatteras by morning. The environment locally
remains warm and dry, with only a little wrap-around cirrus
and or altocumulus to occur around the tropical cyclone across
our sc zones. Light or calm winds away from the immediate coast
will result in decent radiational cooling to get temps down into
the upper 60s and lower 70s. This is still a good 5-7f above
late september normals.

Short term Wednesday through Friday
Dry conditions are expected to continue through Thursday as maria
moves away from the area. A warming trend with above normal
temperatures will persist, with most locations reaching lower 90s
Wednesday and Thursday. A cold front near the area Thursday should
complete passage through the forecast area by late Friday or early
Saturday, bringing slightly increased shower thunderstorm chances.

Temperatures Friday should peak in the upper 80s most locations with
some locations nearing 90 in southwestern zones, but uncertainty in
cloud cover and precipitation placement timing remains. Low
temperatures will range from the upper 60s to lower 70s through the
period.

Long term Friday night through Monday
High surface pressure will begin filling back into the area later
Friday into the weekend behind the departing cold front. Elevated
probabilities for precipitation will linger behind frontal passage
as a sharpening upper level trough crosses the forecast area
Saturday. Ridging aloft will follow this feature and a weak high
pressure wedge-type pattern could set up near or just inland from
the area later Saturday into Sunday and persist into early next
week.

Aviation 12z Tuesday through Saturday
Kchs: perhaps a period of MVFR ceilings sneaking in from the n
during the mid and late morning, otherwiseVFR conditions will
dominate.

Ksav:VFR.

Extended aviation outlook: mainlyVFR conditions are expected, with
low probabilities for morning restrictions due to fog, mainly
Wednesday and Thursday.

Marine
Today and tonight: the large cyclonic pressure pattern
surrounding TC maria will prevail across the maritime community.

Since we're so far away to the W and sw, winds won't be a
problem, but elevated seas comprised mostly of large and long
period swells will persist. As a result we still have sca's in
effect for charleston county atlantic waters and the outer ga
waters, with significant wave heights as high as 6 ft within 20
nm, and up to 8 ft further offshore. However, as maria gains
some latitude, seas will slowly continue to subside this
afternoon and tonight, and the only SCA remaining by sunset
will be on the amz374 waters for 6 or 7 foot seas. The other
waters will have nothing more than 4 or 5 ft by that time.

Wednesday through Sunday: lingering 6 foot seas in the offshore
ga waters should drop below small craft advisory criteria by
mid-day Wednesday. Conditions will then remain rather tranquil
through late week with winds peaking 10-15 knots and seas
generally ranging 2-4 feet. NE winds will begin increasing early
Saturday in response to a tightening pressure gradient, peaking
around 20 knots with gusts to 25 knots, and seas increasing in
response. Small craft advisory conditions will be possible again
by Saturday afternoon and could persist into early next week.

Rip currents: there remains a solid 3 or 4 foot swell impacting
the beaches today, arriving around every 12 seconds. This is
more than enough to generate a moderate risk of rip currents.

With a strong pinching of winds and the resulting increase in
seas this weekend, another round of enhanced rip current risk
seems likely.

Tides coastal flooding
The probabilistic extra-tropical storm surge guidance indicates
about a 10% chance of tides reaching 7.0 ft mllw in charleston
harbor with the early afternoon high tide, while the GFS total
water guidance shows levels falling about 1 4 foot shy of the
requirement of a coastal flood advisory. Given the offshore
fetch and since we didn't quite get to 7.0 ft mllw yesterday,
we'll probably not get that high today. Still, we'll need to
closely monitor tidal trends as levels are still running around
1-1.5 ft mllw above predicted levels the past 18-24 hours.

Climate
Maximum temperature records for 28 september (degrees fahrenheit):
kchs... 94 1986.

Ksav... 98 1986.

Kcxm... 92 1986.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... Small craft advisory until 4 pm edt Wednesday for amz374.

Small craft advisory until 5 pm edt this afternoon for amz350.

Near term...

short term... Jmc
long term... Jmc
aviation...

marine...

tides coastal flooding...

climate...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACXS1 - ACE Basin Reserve, SC 9 mi58 min NW 1 70°F 1013 hPa68°F
41033 15 mi35 min N 14 G 18 75°F 1019.1 hPa
FBIS1 - Folly Island, SC 27 mi43 min NW 5.1 G 8 74°F 1012.6 hPa (+1.6)70°F
CHTS1 30 mi43 min NW 6 G 9.9 77°F 81°F1012.1 hPa (+1.4)
41029 - Capers Nearshore (CAP 2) 43 mi35 min NNW 14 G 19 72°F 80°F1011.1 hPa
FPKG1 - 8670870 - Fort Pulaski, GA 44 mi43 min N 8 G 9.9 71°F 80°F1013.3 hPa (+1.4)

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaufort County Airport, SC17 mi48 minNNW 64.00 miFog/Mist72°F68°F88%1012.9 hPa
Beaufort, Marine Corps Air Station, SC21 mi47 minNNW 610.00 miFair72°F69°F91%1013 hPa
Charleston Executive Airport, SC23 mi48 minWNW 610.00 miFair72°F69°F94%1012.5 hPa

Wind History from ARW (wind in knots)
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Last 24hrNE9N8N9N8NE9NE9NE7N7N7N10
G14
N4N3N4N6N5N5N4NW4NW3NW4NW7NW7NW5NW7
1 day agoNE11NE11
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NE12E8NE10NE12NE9NE7NE4N3CalmCalmN3N4CalmN5N7N7N6N4N5N9
2 days agoNE9NE8NE10NE9E10
G18
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G16
E9E6E4E4E4E4E4NE4NE8N6N5N7N6N9NE11

Tide / Current Tables for Edisto Marina, Big Bay Creek entrance, South Edisto River, South Carolina
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Edisto Marina
Click for Map
Tue -- 12:33 AM EDT     5.87 feet High Tide
Tue -- 06:32 AM EDT     1.34 feet Low Tide
Tue -- 07:12 AM EDT     Sunrise
Tue -- 12:58 PM EDT     Moonrise
Tue -- 01:09 PM EDT     6.23 feet High Tide
Tue -- 07:12 PM EDT     Sunset
Tue -- 07:19 PM EDT     1.69 feet Low Tide
Tue -- 11:39 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.85.85.34.33.22.11.41.423.14.25.25.96.265.44.33.22.21.71.82.53.44.4

Tide / Current Tables for Ocella Creek, 2 mi. above entrance, South Carolina
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Ocella Creek
Click for Map
Tue -- 12:59 AM EDT     5.48 feet High Tide
Tue -- 06:45 AM EDT     1.18 feet Low Tide
Tue -- 07:11 AM EDT     Sunrise
Tue -- 12:58 PM EDT     Moonrise
Tue -- 01:40 PM EDT     5.98 feet High Tide
Tue -- 07:11 PM EDT     Sunset
Tue -- 07:28 PM EDT     1.54 feet Low Tide
Tue -- 11:39 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.35.55.24.33.22.11.41.21.62.63.74.75.45.965.44.53.32.31.61.62.23.14.1

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Charleston, SC (8,2,3,4)
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Ground Weather Radar Station Charleston, SC
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weather_mapweather_map weather_map

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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.