Monday, July6, 2020
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Marine Weather and Tides
Bamberg, SC

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:21AMSunset 8:41PM Monday July 6, 2020 7:37 PM EDT (23:37 UTC) Moonrise 9:11PMMoonset 6:35AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 326 Pm Edt Mon Jul 6 2020
Tonight..SE winds 10 to 15 kt this evening, becoming S 5 to 10 kt late. A chance of showers and tstms this evening, then showers likely with a slight chance of tstms after midnight.
Tue..SE winds 5 kt, becoming S in the afternoon. Showers and tstms likely.
Tue night..SW winds 5 to 10 kt. Showers and tstms.
Wed..SW winds 5 to 10 kt. Showers and tstms.
Wed night..W winds 5 to 10 kt. Showers and tstms, mainly in the evening.
Thu..W winds 5 kt. Showers and tstms likely.
Thu night..SW winds 5 kt. Showers and tstms likely, mainly in the evening.
Fri..SW winds 5 to 10 kt. A chance of showers and tstms.
Fri night..SW winds 5 to 10 kt. A chance of showers and tstms.
Sat..SW winds 5 to 10 kt. A chance of showers and tstms.
Sat night..SW winds 5 to 10 kt. A chance of showers and tstms. Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 85 degrees.
AMZ300 326 Pm Edt Mon Jul 6 2020
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A stationary front will linger over the region through tonight. An area of low pressure is then expected to develop and slowly move across the southeast during the middle part of the week, before lifting north late week into the weekend.


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 061827 AFDCAE

Area Forecast Discussion National Weather Service Columbia SC 227 PM EDT Mon Jul 6 2020

SYNOPSIS. Moisture will deepen across the area today as an upper trough along the Gulf Coast slowly lifts northeastward through mid week and a weak frontal boundary stalls over the region. This will bring with increasing chances of showers and thunderstorms into the middle of the week with heavy rain possible. Showers and thunderstorms will remain possible from late this week through the weekend as a moist air mass remains over the region.

NEAR TERM /THROUGH TONIGHT/. This afternoon . A band of strong showers and thunderstorms has moved into the northern Midlands with rain rates around 2 in/hr and will continue to push across areas north of Columbia. An outflow boundary is evident pushing westward through the Midlands that is likely to ignite additional convection around the Columbia area later this afternoon. Further south, a band of convection is rapidly lifting northward into the CSRA associated with the deeper moisture with PWATs over 2.2 inches and some convergence at 850mb. A surface low continues to very slowly lift northward through southwest GA within the broader upper level trough along the Gulf Coast. Temperatures outside of convection have warmed into the mid and upper 80s but likely are not going to rise much more with increased cloud cover and showers.

Tonight . A very moist air mass continues to overspread the forecast area with PWATs expected to reach around 2-2.25 inches. The surface low to our southwest and associated warm front will lift toward the region and weak PVA interacting with the deep moisture in place is likely to result in scattered to numerous showers and isolated thunderstorms over the western part of the area late tonight spreading into the remainder of the forecast area around 12z. Rainfall will be quite efficient with moist adiabatic thermal profiles and deep warm layer. Training of storms could pose a localized flooding threat but not widespread enough to warrant a flash flood watch at this time. Overnight lows expected to be near normal in the lower 70s.

SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/. Tuesday tropical moisture will be over the area as PWATs will be well above average for this time of year, maxing out around 2.3 to 2.4 inches. While a front will be stalled over the forecast area, surface low pressure will move in from the west with upper level support from a 500mb trough. As a result, rain and some storms likely continue over the area through the morning. Instability will be limited into the afternoon but there will still be enough for thunderstorm development which combined with weak steering flow as the low sits over the area and PWATs well over 2 inches, will produce heavy rain that will likely lead to localized flooding. This flooding threat will be maximized in areas that receive heavy rain Monday. Temperatures will be well below average in the upper 70s and low 80s.

Showers will continue to be possible overnight Tuesday as the low moves across the forecast area with the greater chances in the east, corresponding with shortwave energy associated with the progressing trough. Wednesday, while PWATs will remain above 2 inches over much of the area, the greatest moisture will shift to the coastal plain. Any widespread flooding concerns would be in the eastern forecast area. While there may not be as much moisture and upper level forcing, afternoon showers and storms remain likely with a sufficient amount of moisture remaining in place. Instability will likely be slightly greater with some dry air moving in aloft and steeper low level lapse rates which may be sufficient to pose a threat for isolated strong downbursts. High temperatures will remain below average in the mid 80s with overnight lows in the low 70s.

LONG TERM /THURSDAY THROUGH MONDAY/. Models are converging on a solution that takes the low off the coast of the Carolinas early Thursday as the negatively tilted trough progresses the system slowly, but the 500mb pattern never cuts off which should allow the low to move off into the Mid Atlantic by late Thursday. The NHC continues to give this area of low pressure a 40 percent chance of development as it moves into the warmer Carolina coastal waters but at that point, with our area being on the west side of the system, it would pose little threat. Moisture will likely stay in the area and with temperatures climbing back to near seasonal average, thunderstorm development will be likely during the afternoon and evening. With upper level ridging strengthening over the southwestern US and a trough deepening in the east, lingering moisture and shortwave energy will continue to support chances for showers and storms, especially in the afternoon through the weekend and into early next week.

AVIATION /18Z MONDAY THROUGH SATURDAY/. Restrictions in showers and thunderstorms expected this afternoon and into tonight and again on Tuesday. Heavy rain possible at times.

Scattered showers and thunderstorms associated with a northward lifting warm front and surface low over southwest GA will likely impact the terminals during the 18z-21z time frame. Vsbys could drop to 1SM with some MVFR cigs possible in convection. Outside of the convection low VFR cigs expected due to abundant low level moisture in place through 00z. Reasonably high confidence in MVFR/IFR stratus developing overnight after 03z-07z spreading northward as the low pressure system approaches. Lower confidence in vsbys due to cloud cover and there will be some scattered showers around after 06z moving in from the southwest. Winds will be generally from the southeast 5 to 10 knots through sunset then diminish to around 5 knots or less.

EXTENDED AVIATION OUTLOOK. Increased moisture across the area will lead to restrictions at times in showers and thunderstorms and morning fog/stratus through Friday.

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 SSE 11 G 15 77°F
ACXS1 - ACE Basin Reserve, SC 60 mi112 min SE 2.9 81°F 1017 hPa76°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 minN 08.00 miLight Rain74°F73°F97%1017.3 hPa
Barnwell Regional Airport, SC19 mi42 minN 08.00 miLight Drizzle75°F73°F94%1017.3 hPa

Link to 5 minute data for KOGB

Wind History from OGB (wind in knots)
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Last 24hrSE7SE6SE5E3CalmE3E3Calm3E34E3SE3S5------E654NE7SE6SW4Calm
1 day agoSE4S7S4S4SE3SW3CalmCalmCalmCalmCalmCalmCalmCalm33SE55SE7SE9
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2 days agoSE3SE3S4S4CalmCalmCalmCalmCalmCalmCalmCalmCalmSW3W4W4S3SW5SW5SE34--4SE6

Tide / Current Tables for Cuckolds Creek, Combahee River, South Carolina
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Cuckolds Creek
Click for Map
Mon -- 02:05 AM EDT     4.17 feet High Tide
Mon -- 06:21 AM EDT     Sunrise
Mon -- 07:34 AM EDT     Moonset
Mon -- 08:04 AM EDT     -0.59 feet Low Tide
Mon -- 02:20 PM EDT     3.45 feet High Tide
Mon -- 08:04 PM EDT     -0.38 feet Low Tide
Mon -- 08:34 PM EDT     Sunset
Mon -- 10:07 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.23.94.23.93.22.21-0.1-0.6-0.30.41.42.33.13.43.32.81.90.90-0.4-0.10.51.5

Tide / Current Tables for Ashepoo, Ashepoo River, South Carolina
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Ashepoo
Click for Map
Mon -- 01:39 AM EDT     2.78 feet High Tide
Mon -- 06:20 AM EDT     Sunrise
Mon -- 07:34 AM EDT     Moonset
Mon -- 07:52 AM EDT     -0.36 feet Low Tide
Mon -- 01:53 PM EDT     2.30 feet High Tide
Mon -- 07:52 PM EDT     -0.23 feet Low Tide
Mon -- 08:33 PM EDT     Sunset
Mon -- 10:07 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.72.82.51.91.20.4-0.2-0.4-0.10.51.11.82.22.32.11.71.10.4-0.1-0.200.51.2

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Columbia, SC (19,4,5,8)
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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 numerous 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.