Saturday, September23, 2017 L-36.com


Marine Weather and Tides
Barnwell, 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 7:15AMSunset 7:22PM Saturday September 23, 2017 5:48 PM EDT (21:48 UTC) Moonrise 9:23AMMoonset 8:43PM Illumination 11% Phase: Waxing Crescent; Moon at 3 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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AMZ330 Charleston Harbor- 353 Pm Edt Sat Sep 23 2017
Tonight..NE winds 10 kt.
Sun..NE winds 10 kt.
Sun night..NE winds 5 to 10 kt.
Mon..N winds 10 kt.
Mon night..N winds 5 to 10 kt.
Tue..N winds 10 kt.
Tue night..N winds 5 to 10 kt.
Wed..NW winds 10 kt.
Wed night..W winds 5 kt.
Thu..NW winds 5 kt.
Thu night..SW winds 5 kt. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 81 degrees.
AMZ300 353 Pm Edt Sat Sep 23 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail this weekend. The high will weaken and shift inland as hurricane maria tracks northward off the southeast u.s. Coast into the first half of next week. A cold front may approach the forecast area late next week.

7 Day Forecast for Marine Location Near Barnwell, SC
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location: 33.23, -81.36     debug


Area Discussion for - Columbia, SC
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Fxus62 kcae 231742
afdcae
area forecast discussion
national weather service columbia sc
142 pm edt Sat sep 23 2017

Synopsis
Surface high pressure centered over the great lakes region will
extend southward into our area through Monday. High pressure will
weaken a bit as hurricane maria moves northward off the carolina
coast Monday through Thursday. Above normal temperatures will cool
for the end of next week behind a moisture limited cold front.

Near term through tonight
An upper level trough over the deep south will shift westward
today. Mid and low level high pressure will build in from the
north producing a capping inversion, inhibiting convective
development. The air mass also appears drier today with
satellite derived pwat values lower than the past couple of
days. Therefore we expect minimal, if any, shower and
thunderstorm development today. Model guidance supports low
pops with values less than 10 percent.

Temperatures will remain above normal today with highs around
90 degrees. Model temperature guidance is likely too cool given
recent verification.

Tonight, models suggest a stronger nocturnal jet and less low
level moisture than last night, indicating a lower threat of
patchy fog. Expect mostly clear skies and temperatures in the
mid 60s.

Short term Sunday through Monday
An upper level ridge over the northeastern and mid atlantic states
will continue extending into the carolinas through Monday. A weak
upper low will drift westward along the gulf coast states as maria
moves northward well off the fl ga coast. Aside from increased waves
and swells along the coast no impacts are expected from hurricane
maria. Surface high pressure centered over the ohio river valley
will extend across much of the eastern half of the country. A north
to northeast low level wind flow will keep a relatively dry airmass
across the region. Models have been consistently showing above
normal temperatures with with afternoon highs in the upper 80s to
lower 90s and overnight lows in the 60s.

Long term Monday night through Saturday
Models show a pattern shift taking place for the latter half of next
week. The trough ridge over the west east on Tuesday will transition
to a ridge trough over the west east by Friday.

Surface high pressure extending from the eastern great lakes to the
gulf of mexico through Wednesday will weaken as maria moves
northward off the carolina coast through Thursday. Although the
official track of maria has shifted slightly westward, maria is
forecast to remain offshore with no impacts for midlands and
csra... Other than an increase in clouds and wind. A moisture limited
frontal boundary moving through on Friday will bring cooler
temperatures for next weekend.

Aviation 18z Saturday through Thursday
High pressure ridging into the mid-atlantic will continue to
push drier air into the region. Drier air and a mid-level
capping inversion will inhibit convective development this
afternoon. Showers and thunderstorms are not likely. Generally
expect light NE surface winds at all TAF sites but may become
variable at times.

Tonight, models suggest a stronger low level jet and drier low
levels than the previous night. The threat of widespread fog
appears low. However fog prone areas, including ags, may still
see some shallow ground fog or low stratus given mostly clear
skies, light winds and persistence forecasting. Model guidance
is consistent suggestingVFR conditions at all TAF sites.

Extended aviation outlook... Late night early morning
fog stratus possible each morning... Mainly at the fog prone
sites ags and ogb.

Cae watches warnings advisories
Ga... None.

Sc... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHDS1 - Strom Thurmond Dam, SC 54 mi69 min E 1.9 G 6 87°F
LMFS1 - Lake Murray SC 61 mi29 min ENE 1 G 5.1 86°F 1014.9 hPa

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Barnwell Regional Airport, SC2 mi54 minE 510.00 miA Few Clouds88°F64°F46%1015.2 hPa

Wind History from BNL (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE45NE8E8E7
G13
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G11
1 day agoSE5SW35S4S4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3CalmNE5E3
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5E5CalmSE6NE5
2 days agoCalmCalmCalmCalmCalmCalmS4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4NE3NE4NE4SW7SE10

Tide / Current Tables for Cuckolds Creek, Combahee River, South Carolina
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Cuckolds Creek
Click for Map
Sat -- 03:14 AM EDT     3.91 feet High Tide
Sat -- 07:11 AM EDT     Sunrise
Sat -- 09:03 AM EDT     0.71 feet Low Tide
Sat -- 10:19 AM EDT     Moonrise
Sat -- 03:45 PM EDT     3.95 feet High Tide
Sat -- 07:17 PM EDT     Sunset
Sat -- 09:35 PM EDT     1.14 feet Low Tide
Sat -- 09:41 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.33.13.63.93.83.32.61.710.70.91.42.22.93.53.93.93.73.22.51.71.21.21.5

Tide / Current Tables for Tulifiny River, I-95 bridge, South Carolina
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Tulifiny River
Click for Map
Sat -- 01:52 AM EDT     5.65 feet High Tide
Sat -- 07:12 AM EDT     Sunrise
Sat -- 08:19 AM EDT     0.21 feet Low Tide
Sat -- 10:20 AM EDT     Moonrise
Sat -- 02:22 PM EDT     5.68 feet High Tide
Sat -- 07:18 PM EDT     Sunset
Sat -- 08:49 PM EDT     0.39 feet Low Tide
Sat -- 09:42 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.55.45.65.34.43.320.90.30.41.32.74.15.15.65.6542.81.60.70.412.1

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 Columbia, SC (17,4,5,8)
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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.