Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Bamberg, SC

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 6:45AMSunset 8:04PM Sunday April 22, 2018 5:48 PM EDT (21:48 UTC) Moonrise 11:36AMMoonset 12:57AM Illumination 51% 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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AMZ330 Charleston Harbor- 356 Pm Edt Sun Apr 22 2018
.small craft advisory in effect through Monday evening...
Tonight..E winds 15 kt with gusts to 25 kt. Waves 1 to 2 ft. A slight chance of showers this evening, then a chance of showers after midnight.
Mon..SE winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft. Showers in the morning, then showers with a slight chance of tstms in the afternoon. Locally heavy rainfall possible in the afternoon.
Mon night..SE winds 15 to 20 kt with gusts to 30 kt, diminishing to 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft. Showers with a slight chance of tstms in the evening, then showers likely after midnight.
Tue..S winds 10 to 15 kt. A chance of showers. A slight chance of tstms in the afternoon.
Tue night..SW winds 5 to 10 kt. A chance of showers with a slight chance of tstms in the evening.
Wed..W winds 5 kt, becoming sw in the afternoon.
Wed night..W winds 5 to 10 kt.
Thu..W winds 5 kt. A slight chance of showers.
Thu night..W winds 5 kt. A slight chance of showers.
Fri..W winds 5 to 10 kt.
Fri night..SW winds 5 to 10 kt. Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 65 degrees.
AMZ300 356 Pm Edt Sun Apr 22 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will remain northeast of the forecast area tonight as a low pressure system approaches from the west. The low will stay west of the area on Monday, then move up the east coast through mid week. Weak high pressure will prevail before a cold front crosses the area 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 222045
afdcae
area forecast discussion
national weather service columbia sc
445 pm edt Sun apr 22 2018

Synopsis
A low pressure system over the lower ms river valley will
slowly lift northeast spreading widespread rainfall across the
area through Monday night. This storm system will finally move
out of the area Wednesday.

Near term through tonight
Low pressure will be moving through the gulf coast states. As
gulf moisture pushes inland this evening and overnight, rain
chances will be on the increase as rainfall moves in from the
west. Current regional radars show light rain across the csra
and western midlands, and this will continue moving east.

Low-level winds will continue pushing moisture into the
forecast area with pwat values increasing to over an inch and
rain becoming likely to categorical across the entire area.

Rainfall amounts through tonight will range from one quarter
inch or less in the northern midlands to around an inch in the
northern csra. With increasing clouds and rain, lows tonight
will be in the low 50s north to around 60 south.

Short term Monday through Tuesday night
Vertically stacked cyclone centered over western tn Monday will
slowly move eastward reaching central tn by 12z Tuesday.

Primary surface low associated with this system will remain
beneath the upper cyclone but a secondary low at the triple
point will move across ga and into sc on Tuesday.

Strong isentropic ascent will result in significant rainfall
Monday into Monday night. Models also indicating more
instability from the central midlands on south with capes around
2500 j kg and lifted indices of minus 2c to minus 4c. Could see
isolated storms during the afternoon capable of damaging gusts
and perhaps marginally severe hail.

Pwat amounts expected between 1.5 and 1.75 inches which is
nearly double seasonal normals and will create potential for
moderate to heavy rainfall. Rainfall amounts through Tuesday
night are currently expected mainly between 2 and 2.5 inches.

There still exist the for flooding due to rainfall across the
area as well as heavier amounts in the upstate. Will continue to
monitor and expect significant rises in lake and river levels
from Monday through much of the week.

Kept highs on Monday on the cool side of guidance... Ranging from
the lower 60s north to lower 70s south. Lows Monday night will
range from the upper 50s to lower 60s. Warmer readings in the
70s expected Tuesday.

Long term Wednesday through Sunday
Broad upper troughing will remain over the eastern CONUS through
next weekend.

While the low pressure tracks northward away from the area
Wednesday the next upper level disturbance will drop through the
lower ms river valley. Models differ with the progression of
this feature with the GFS aggressively pushing the feature
eastward with the ECMWF takes a weaker approach. Both models
indicate moisture will remain over the area with low chances of
rain Wednesday and Thursday. Confidence in models remains low
beyond Thursday.

Have based the extended forecast primarily on the GFS model...

indicating a moisture limited front crossing the region Friday
and dry surface high pressure building next weekend. Should see
highs in the 70s with overnight lows in the upper 40s to lower
50s.

Aviation 21z Sunday through Friday
Vfr conditions expected through this evening. Ceilings lowering
tonight as moisture advection develops ahead of warm front.

A low pressure system is approaching from the west. Ceilings
expected to continue to lower this evening, and could be MVFR by
23z at ags dnl, but not until around 03z at other sites. Light showers
are currently spreading into the region from south to north.

Southeast winds are generally light, but could become gusty.

Llws possible early Monday morning. Periods of rain will
continue after sunrise Monday with MVFR cigs. Cannot rule
possible isolated thunder during the day Monday but confidence
is too low to mention in the tafs at this time.

Extended aviation outlook
Widespread showers, possibly heavy, and associated restrictions
Monday Monday night, with thunderstorms possible. Conditions
improving by Tuesday afternoon.

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 mi58 min E 5.1 G 7 67°F 1022.7 hPa
ACXS1 - ACE Basin Reserve, SC 60 mi63 min N 5.1 69°F 53°F

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Orangeburg, Orangeburg Municipal Airport, SC15 mi55 minE 610.00 miOvercast69°F51°F53%1023 hPa
Barnwell Regional Airport, SC19 mi73 minE 410.00 miOvercast70°F53°F57%1023 hPa

Wind History from OGB (wind in knots)
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Last 24hrSE4SE8SE7SE5SE6SE5SE6SE63E3E5E3NE4CalmNE3E7E7E9SE9SE7SE7SE8SE7E6
1 day ago3E4CalmCalmCalmCalmCalmNE3CalmCalmNE3CalmCalmCalmCalmNE5E9NE10
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2 days agoW16
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G16
4NE4N6NE7NE8

Tide / Current Tables for Cuckolds Creek, Combahee River, South Carolina
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Cuckolds Creek
Click for Map
Sun -- 01:54 AM EDT     Moonset
Sun -- 06:31 AM EDT     3.89 feet High Tide
Sun -- 06:45 AM EDT     Sunrise
Sun -- 12:31 PM EDT     0.56 feet Low Tide
Sun -- 12:35 PM EDT     Moonrise
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:11 PM EDT     3.35 feet High Tide
Sun -- 07:57 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.51.222.93.53.83.83.42.71.91.10.60.60.91.52.22.73.23.33.22.721.3

Tide / Current Tables for Ashepoo, Ashepoo River, South Carolina
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Ashepoo
Click for Map
Sun -- 01:53 AM EDT     Moonset
Sun -- 06:03 AM EDT     2.59 feet High Tide
Sun -- 06:44 AM EDT     Sunrise
Sun -- 12:19 PM EDT     0.34 feet Low Tide
Sun -- 12:34 PM EDT     Moonrise
Sun -- 05:46 PM EDT     First Quarter
Sun -- 06:44 PM EDT     2.24 feet High Tide
Sun -- 07:57 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.40.91.52.12.52.62.52.11.61.10.60.40.40.71.11.61.92.22.221.71.20.7

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Columbia, SC (17,4,5,8)
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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.