Saturday, July11, 2020
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Marine Weather and Tides
Beaufort, 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 6:23AMSunset 8:33PM Saturday July 11, 2020 10:18 PM EDT (02:18 UTC) Moonrise 11:53PMMoonset 11:25AM Illumination 59% Phase: Waning Gibbous; Moon at 21 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- 1002 Pm Edt Sat Jul 11 2020
Tonight..SW winds 5 to 10 kt. Seas 2 to 3 ft.
Sun..S winds 5 to 10 kt. Seas 2 to 3 ft.
Sun night..S winds 10 to 15 kt. Seas 3 to 4 ft.
Mon..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms in the afternoon.
Mon night..SW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. A chance of tstms. A chance of showers.
Tue..SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Tue night..SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Wed..S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms.
Wed night..SE winds 5 to 10 kt. Seas 2 ft.
Thu..SE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms.
Thu night..SE winds 5 to 10 kt. Seas 2 ft. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 1002 Pm Edt Sat Jul 11 2020
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A weak stationary front will linger over or near our area through early next week. High pressure is expected to return during the middle of next week and persist through late next week.


7 Day Forecast for Marine Location Near Beaufort, SC
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location: 32.44, -80.67     debug


Area Discussion for - Charleston, SC
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FXUS62 KCHS 112324 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 724 PM EDT Sat Jul 11 2020

SYNOPSIS. A weak stationary front will linger over or near our area through early next week. High pressure is expected to return during the middle of next week and persist through late next week.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. Observed temperatures are running anywhere from 5 degrees cooler (within convection) to 5 degrees warmer (in SE GA where there are no showers) than the hourly forecast. We adjusted the diurnal trend to account for this over the next few hours. Otherwise, despite plenty of MLCAPE, convection has had a hard time initiating and maintaining itself due to the cap. The convection will dissipate with the setting sun, leading to dry conditions and mostly clear skies overnight.

SHORT TERM /6 AM SUNDAY MORNING THROUGH TUESDAY/. Sunday: A weak sfc low will remain across the area Sunday before shifting northeast. The deep moisture is expected to remain east of the forecast area, limiting the overall potential for convection. While a mostly dry day is expected inland, along the afternoon seabreeze, showers/thunderstorms are possible with 1500-2000 J/kg of CAPE along the coast. Another hot day is expected, with temps in the mid to upper 90s. Heat Index values will range around 105 degrees with dewpoints in the upper 70s along the coast.

Monday: As the mid/upper level trough meanders over the area, rain chances will gradually increase through the day, as a front approaches the area. Overall, the CAPE is highest in SE GA and along the coast ranging from 2000-2800 J/kg. Showers/thunderstorms are possible during the afternoon and could persist into the evening, as they move offshore. Another warm day is expected, with temperatures in the low to mid 90s, a degree or two cooler than Sunday with Heat Index Values still reaching 100-105 degrees. Lows are expected to be in the low to mid 70s.

Tuesday: A stationary front is expected to become positioned over the forecast area on Tuesday. Showers/thunderstorms are possible in the afternoon/evening, along a seabreeze and front. CAPE values are actually a bit higher than previous days with some areas exceeding 3000 J/kg. Temperatures will range from upper 90s inland and low 90s along the immediate coast, with heat indexes peaking around 105 degrees.

LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/. A mid/upper lvl trough centered across the Northeast United States will begin to shift offshore and become replaced by a large mid/upper lvl ridge of high pressure expanding across much of the southern half of the United States. The pattern suggests a more typical summertime pattern through late week with few to scattered showers and thunderstorms possible during afternoon/evening hours each day. High temps will also be a few degrees above normal through the week, generally ranging low/mid 90s each day (warmest inland), but could be a degree or two cooler late week as the sfc flow becomes more directly onshore. Overnight lows should range in the low/mid 70s away from the coast.

AVIATION /23Z SATURDAY THROUGH THURSDAY/. 00Z TAFs: VFR with minor wind shifts for the entire TAF time period. There is small risk for convection at CHS Sunday afternoon, which we opted to cover with VCSH.

Extended Aviation Outlook: VFR conditions are expected at both CHS and SAV terminals Sunday. Brief flight restrictions are possible at both terminals Monday due to showers/thunderstorms. VFR conditions will generally prevail at both terminals Tuesday and Wednesday.

MARINE. S to SW winds will remain at or below 15 kt through tonight.

Sunday through Thursday: As weak low pressure lingers over the area, the pressure gradient is expected to tighten slightly Sunday night into Monday morning. As of now, winds and seas remain 10-15 knots with gusts to 20 knots at times with seas 3 to 4 feet, remaining below Small Craft Advisories. Depending on how quickly the low shifts northeast, winds should start to decrease on Monday night and remain 10 to 15 knots through the rest of the period with seas 2 to 3 feet as the pressure gradient relaxes.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . None. MARINE . None.

NEAR TERM . SHORT TERM . RAD LONG TERM . DPB AVIATION . RAD MARINE . JRL/RAD


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACXS1 - ACE Basin Reserve, SC 14 mi93 min Calm 85°F 1010 hPa80°F
41033 18 mi70 min SW 12 G 19 85°F 86°F1009.9 hPa
FPKG1 - 8670870 - Fort Pulaski, GA 31 mi48 min SW 5.1 G 7 85°F 85°F1011.2 hPa
FBIS1 - Folly Island, SC 45 mi78 min SSW 7 G 8 84°F 1011 hPa (+0.9)
CHTS1 46 mi48 min SSW 5.1 G 7 85°F 86°F1010.9 hPa

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaufort County Airport, SC3 mi23 minno data7.00 miFair82°F78°F89%1010.8 hPa
Beaufort, Marine Corps Air Station, SC4 mi22 minSSW 510.00 miFair85°F78°F80%1010.8 hPa
Hilton Head Island, Hilton Head Airport, SC15 mi23 minSW 48.00 miFair84°F80°F89%1011.2 hPa

Link to 5 minute data for KNBC

Wind History from NBC (wind in knots)
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Last 24hrS4S55SW6SW4S3SW5SW4W3W5W6W5SW3S4SW7W8NW7NW5N63S4S4S4S5
1 day agoSW4W3CalmCalmNW5CalmN3CalmCalmN5N5W7NW7NW54NE5NW4NW5W6SE6S6SE5S3S4
2 days agoW5NW5NW3NW5NW6NW5N6NW4NW3N5N4N7N8NW6W3W6NW5NW7N4N6N7NW4CalmCalm

Tide / Current Tables for Beaufort, Beaufort River, South Carolina
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Beaufort
Click for Map
Sat -- 12:24 AM EDT     Moonrise
Sat -- 02:15 AM EDT     7.14 feet High Tide
Sat -- 06:24 AM EDT     Sunrise
Sat -- 08:22 AM EDT     0.62 feet Low Tide
Sat -- 12:24 PM EDT     Moonset
Sat -- 02:40 PM EDT     6.83 feet High Tide
Sat -- 08:32 PM EDT     Sunset
Sat -- 08:36 PM EDT     1.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.76.67.16.96.14.631.50.70.81.73.14.75.96.76.86.25.13.72.31.51.423.2

Tide / Current Tables for Parris Island, Marine Corps Recruit Depot, Beaufort River, South Carolina
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Parris Island
Click for Map
Sat -- 12:24 AM EDT     Moonrise
Sat -- 01:49 AM EDT     6.67 feet High Tide
Sat -- 06:24 AM EDT     Sunrise
Sat -- 07:48 AM EDT     0.56 feet Low Tide
Sat -- 12:24 PM EDT     Moonset
Sat -- 02:15 PM EDT     6.36 feet High Tide
Sat -- 08:01 PM EDT     1.21 feet Low Tide
Sat -- 08:31 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.76.46.76.153.520.90.61.12.23.64.85.86.36.15.242.61.61.21.52.43.5

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 Charleston, SC (22,6,7,8)
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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 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.