Sunday, April23, 2017 L-36.com


Marine Weather and Tides
Bamberg, SC

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:44AMSunset 8:05PM Sunday April 23, 2017 1:36 AM EDT (05:36 UTC) Moonrise 4:01AMMoonset 4:04PM Illumination 9% Phase: Waning Crescent; Moon at 27 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- 934 Pm Edt Sat Apr 22 2017
Tonight..SW winds 10 to 15 kt...except 15 kt near the harbor entrance.
Sun..S winds 10 to 15 kt. A slight chance of showers and tstms.
Sun night..S winds 15 kt. Showers with tstms likely.
Mon..S winds 15 kt...diminishing to 5 to 10 kt in the afternoon. Showers with a chance of tstms.
Mon night..NW winds 5 kt...increasing to 10 to 15 kt after midnight. Showers with a chance of tstms in the evening...then showers likely with a slight chance of tstms after midnight.
Tue..NW winds 15 kt. Showers likely with a slight chance of tstms in the morning.
Tue night..NW winds 5 kt.
Wed..NE winds 5 kt.
Wed night..SE winds 5 kt.
Thu..S winds 5 kt.
Thu night..S winds 5 kt. Mariners are reminded that winds and waves can be higher in and near tstms. Unless otherwise noted...waves 1 foot or less. Charleston harbor water temperature...74 degrees.
AMZ300 934 Pm Edt Sat Apr 22 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Atlantic high pressure will prevail through tonight. A storm system will bring unsettled weather to the region Sunday into Monday night. High pressure will build over the region mid to late week.

7 Day Forecast for Marine Location Near Bamberg, SC
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location: 33.3, -81.04     debug


Area Discussion for - Columbia, SC
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Fxus62 kcae 230535
afdcae
area forecast discussion
national weather service columbia sc
135 am edt Sun apr 23 2017

Synopsis
An approaching low pressure system will slowly cross the region
Sunday through Monday night bringing showers and thunderstorms.

Dry weather and above normal temperatures will return by
Wednesday as high pressure takes control.

Near term /until 6 am this morning/
As the upper level low continues to develop and move slowly
eastward tonight, a surface low will develop over northern
alabama and move into georgia Sunday morning. The front in nc
will transition to a backdoor cold front during this period and
move into the north central midlands and piedmont. Therefore a
few showers will be possible as the front moves into the region
late tonight, mainly north of columbia. Cannot rule out the
possibility of an isolated thunderstorm close to the front, but
instability is weak. Overnight lows will range from near 60
north to the mid 60s south.

Short term /6 am this morning through 6 pm Monday/
The closed upper low over the tn valley Sunday morning will
slowly move across the southeastern states Monday through Monday
night. A frontal boundary will stall across the midlands on
Sunday. Showers are likely across the north midlands as
isentropic lift increases. With front across the area Sunday... A
tight temperature gradient is expected... So confidence is low
for MAX temperatures. Wedge conditions to develop into the
central midlands but more certain to the north. Forecast
temperatures from 60s north to mid 80s southeast Sunday
afternoon.

We'll also see low pressure and its accompanying cold front
approaching the forecast area from georgia during the Sunday.

Thunderstorms expected to develop along the cold front and the
stationary boundary in the area. There is a marginal risk of
severe weather mainly during peak heating in the afternoon with
sb CAPE 500-1000 j/kg and moderately strong deep layer shear.

The shear may be enhanced near the quasi-stationary front in the
central midlands. There is also a heavy rain threat as
precipitable water increases to above 1.5 inches with training
possible. Expect storm total rainfall of generally 1 to 2
inches. Although could see localized rainfall amounts in the 2
to 4 inch category across the north midlands. Convection should
be more progressive with less of a training threat to the south.

As the upper low passes just south of the csra Monday and
Monday night... There will be a continued chance for showers and
thunderstorms given associated cold air and divergence aloft.

May have hail threat Monday. High temperatures for Monday should
be in the mid 60s to mid 70s due to clouds and precipitation.

Long term /Monday night through Saturday/
The upper low and surface low pressure will be off the coast by
Tuesday morning and moving northward away from the region.

Could see linger showers across the north midlands and pee dee
region Tuesday morning... Before drier air overspreads the
region. Models indicate rising heights and high pressure
building over the southeastern states through Friday. A cold
front stretching from the oh valley to the central gulf states
on Thursday is forecast to wash out before crossing the
mountains. Dry weather looks to persist Wednesday through
Friday. By Saturday... Surface high pressure and upper level
ridging will move into the western atlantic. Increasing moisture
will bring a chance for convection Saturday. Above normal
temperatures will return for the long term.

Aviation /06z Sunday through Thursday/
Vfr at all of our terminals at 05z. Mid and high level
convective debris cloudiness, streaming in from dissipating
convection to our west, is expected to preclude any fog concerns
early this morning. A back door front is currently near the
nc/sc line, with MVFR to ifr cig restrictions behind it over
much of nc. The front will shift farther s/sw into our forecast
area (fa) this morning. Some question as to how far south it,
and associated cig restrictions, will get. This leads to
uncertainty and low confidence at cae/cub with regards to cigs
and wind. Current indications are that the front could affect
cae/cub by 12z. The front is expected to remain nearly
stationary or shift back to the north some this afternoon and
evening. So any cig restrictions at cae/cub this morning could
improve by afternoon. Some diurnal convection is expected to
develop along the front and sea breeze this afternoon, but main
concern will be shower and thunderstorm activity, some possibly
severe, late this afternoon and tonight along and ahead of a
cold front and slow moving upper and surface lows approaching
from the west. For now, will indicate predominate shra, with
vcts, late in the TAF period.

Extended aviation outlook... Rain/showers with cig/vsby restrictions
Sunday night/Monday, with thunderstorms possible, some possibly
severe. Cig restrictions continuing Monday night/Tuesday morning.

Cae watches/warnings/advisories
Ga... None.

Sc... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LMFS1 - Lake Murray SC 57 mi77 min S 8.9 G 14 74°F 1010.8 hPa
ACXS1 - ACE Basin Reserve, SC 60 mi112 min S 1 73°F 1013 hPa69°F

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Orangeburg, Orangeburg Municipal Airport, SC15 mi44 minS 510.00 miFair68°F64°F87%1011.6 hPa
Barnwell Regional Airport, SC19 mi42 minS 510.00 miFair73°F66°F78%1011.8 hPa

Wind History from OGB (wind in knots)
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Last 24hrS6S5S5SW5S4S5SW7SW9SW10SW7W8
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1 day agoSW6SW4SW5SW5SW3SW4SW4SW7SW6W9SW9W9SW8SW7SW9SW7SW10S9S7S10S10S7S7S5
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalm--W7533W7SW9SW4SW6SW3CalmS3S5SW5S4

Tide / Current Tables for Cuckolds Creek, Combahee River, South Carolina
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Cuckolds Creek
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Sun -- 04:16 AM EDT     0.61 feet Low Tide
Sun -- 04:59 AM EDT     Moonrise
Sun -- 06:43 AM EDT     Sunrise
Sun -- 10:53 AM EDT     3.64 feet High Tide
Sun -- 04:46 PM EDT     -0.32 feet Low Tide
Sun -- 05:02 PM EDT     Moonset
Sun -- 07:58 PM EDT     Sunset
Sun -- 11:15 PM EDT     3.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.12.41.710.60.71.11.82.53.13.53.63.32.61.70.7-0.1-0.30.10.91.92.93.63.9

Tide / Current Tables for Ashepoo, Ashepoo River, South Carolina
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Ashepoo
Click for Map
Sun -- 04:04 AM EDT     0.37 feet Low Tide
Sun -- 04:59 AM EDT     Moonrise
Sun -- 06:43 AM EDT     Sunrise
Sun -- 10:26 AM EDT     2.43 feet High Tide
Sun -- 04:34 PM EDT     -0.19 feet Low Tide
Sun -- 05:01 PM EDT     Moonset
Sun -- 07:58 PM EDT     Sunset
Sun -- 10:48 PM EDT     2.59 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.91.40.90.50.40.50.81.31.82.22.42.42.11.60.90.3-0.1-0.20.20.81.52.12.52.6

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 (1,6,7,8)
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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.