Monday, August10, 2020
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Marine Weather and Tides
Burton, 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 6:43AMSunset 8:13PM Monday August 10, 2020 8:55 PM EDT (00:55 UTC) Moonrise 11:19PMMoonset 11:57AM Illumination 55% Phase: Third Quarter Moon; Moon at 22 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- 739 Pm Edt Mon Aug 10 2020
Tonight..SW winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms.
Tue..W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 ft. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon.
Tue night..SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Wed..S winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Wed night..S winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Thu..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Thu night..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Fri..SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Fri night..S winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Sat..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Sat night..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 739 Pm Edt Mon Aug 10 2020
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. The region will remain positioned between atlantic high pressure well to the east and an inland area of broad low pressure.


7 Day Forecast for Marine Location Near Burton, SC
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location: 32.41, -80.7     debug


Area Discussion for - Charleston, SC
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FXUS62 KCHS 102350 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 750 PM EDT Mon Aug 10 2020

SYNOPSIS. The region will remain positioned between Atlantic high pressure well to the east and an inland area of broad low pressure.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. Early this evening: The radar is a bit chaotic this evening thanks to numerous outflow boundaries seemingly propagating in many different directions. The two main outflow boundaries include one marching to the southeast associated with convection that moved in from the Midlands and central Georgia, and the other is one moving at about 25 knots to the northeast. The main line of convection currently runs from around Sylvania to around Orangeburg and is trying to progress to the southeast. The interesting thing is that the boundary moving to the northeast seems to be cutting off and destabilizing much of the area out ahead of the convection. All of that to say, it is unclear how far to the southeast this convection will be able to progress especially in the presence of sunset and decreasing surface heating. We aren't very confident that convection will be able to make it all the way into Beaufort or the Charleston area as it may dissipate and wane before moving that far. Overall, the severe threat isn't particularly high. There is some wind showing up on base velocity data, but with updrafts that are struggling to produce much significant reflectivity near the -20 C height (27.2 kft) it is hard to see severe level gusts occurring.

SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/. The synoptic pattern continues to change little through the period. A broad, deep layer trough of low pressure will remain to the west with a deep layer Atlantic ridge to the east- southeast. South- southwest low-level flow is expected to become onshore near the coast each afternoon due to the sea breeze. Given the orientation of the coastline, the southerly sea breeze will push further inland for our SC area, whereas in GA, the sea breeze will remain parallel to the coast. A weak land breeze may set up in the overnight/early morning hours, producing showers over the marine zones with mainly chance PoPs in place during those periods. Models hint at a weak mid- level shortwave that passes over the area Tuesday night, therefore likely PoPs are in place for much of the GA area with chance PoPs over the remaining SC land areas. As has been the case for the past week, the sea breeze and convective outflow boundaries will be the main focus for any showers and thunderstorms. Generally chance to low-end likely PoPs are forecast for the afternoon and early evening showers/thunderstorms each day. High temperatures remain in the normal range, mostly in the lower 90s. Lows above normal in the lower to mid 70s, except upper 70s along the immediate coast. Upper level flow remains weak and will continue to result in slow-moving storms. With plenty of deep layer moisture and P-WATS hovering just above 2 inches, some storms could produce locally heavy rainfall.

LONG TERM /THURSDAY NIGHT THROUGH MONDAY/. Global models begin to diverge during this period, but the consensus solution indicates the potential for a slightly sharper upper trough trying to push toward the area from the northwest. If this happens, the upper flow would back to more southwest, helping to draw even more tropical moisture northward, while also potentially providing some upper level diffluence. Thus, blended guidance continues to show likely PoPs, which seems a bit high for so far out in time, especially when climo PoPs are 30-40%. However, as has been the case, these PoPs collaborate well with surrounding offices. Did cap PoPs to high end chance for the end of the period/Monday due to some indication of a lowering of deep layer moisture. This pattern may also become more conducive for locally heavy rainfall with deep layer/uni-directional flow from the southwest, resulting in a higher potential for training of convective cells. Have kept temperatures close to normal given uncertainty with PoPs and potential afternoon cloud cover.

AVIATION /00Z TUESDAY THROUGH SATURDAY/. This evening, thunderstorms are currently upstream of both KCHS and KSAV. It appears that the better chance of seeing direct impacts is at KCHS, but it remains unclear if thunderstorms will persist long enough to make it. Given the uncertainty, kept the mention of thunder out of both sites. Overnight, no significant fog or stratus concerns. We could again see thunderstorms Tuesday afternoon and evening, but not enough confidence to introduce anything at this point.

Extended Aviation Outlook: Models continue to indicate the potential for scattered to numerous showers and thunderstorms, mainly in the afternoon and evening. Brief flight restrictions at both sites are possible each afternoon/evening.

MARINE. Tonight: Tranquil conditions will prevail outside of any convection. S winds around 10 kt this evening are expected to veer to the SW after midnight. Seas will average 1-2 ft.

No highlights are expected through the week. The waters will remain between Atlantic high pressure to the east and a broad area of lower pressure well inland. Southerly winds of 15 knots or less and seas of 3 feet or less are expected. A weak afternoon sea breeze will turn winds southerly/onshore near the coast each afternoon. Scattered showers and thunderstorms are expected mainly late night and early morning.

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



NEAR TERM . BSH SHORT TERM . BRM LONG TERM . RFM AVIATION . BSH/BRM MARINE . MS/BRM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACXS1 - ACE Basin Reserve, SC 17 mi70 min SSE 1 84°F 1016 hPa78°F
41033 18 mi47 min WSW 14 G 18 84°F 87°F1015.8 hPa
FPKG1 - 8670870 - Fort Pulaski, GA 28 mi61 min SW 4.1 G 7 81°F 85°F1016.6 hPa
FBIS1 - Folly Island, SC 47 mi115 min S 11 G 13 85°F 1016.2 hPa (-0.6)
CHTS1 48 mi61 min S 6 G 9.9 84°F 87°F1016.1 hPa

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaufort County Airport, SC4 mi60 minS 10 G 147.00 miPartly Cloudy84°F77°F79%1015.9 hPa
Beaufort, Marine Corps Air Station, SC5 mi59 minS 510.00 miMostly Cloudy86°F77°F75%1015.8 hPa
Hilton Head Island, Hilton Head Airport, SC13 mi65 minSW 910.00 miPartly Cloudy84°F73°F70%1016.3 hPa

Link to 5 minute data for KARW

Wind History from ARW (wind in knots)
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Last 24hrSW4W7W3CalmCalmNW5CalmCalmCalmCalmCalmCalmSW5SW6W7NW3W6SW4SW4S7S10S7S6SW8
1 day agoCalmS3SW5SW3W3CalmCalmSW7SW3W3W3W6CalmCalmNW5CalmCalmS4SE8W8CalmS3SW4Calm
2 days agoCalmW3CalmCalmSW7CalmCalmCalmCalmSW3W4CalmSW5SW3SW4SW5S7SW5SW4S5S6S7S7S4

Tide / Current Tables for Battery Creek, 4 mi. above entrance, Beaufort River, South Carolina
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Battery Creek
Click for Map
Mon -- 02:24 AM EDT     7.06 feet High Tide
Mon -- 06:43 AM EDT     Sunrise
Mon -- 07:53 AM EDT     0.75 feet Low Tide
Mon -- 12:56 PM EDT     Moonset
Mon -- 02:48 PM EDT     7.34 feet High Tide
Mon -- 08:11 PM EDT     Sunset
Mon -- 08:16 PM EDT     1.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.66.576.95.94.32.51.20.81.22.43.85.26.47.17.36.65.23.62.21.51.62.33.4

Tide / Current Tables for Capers Creek, Cowen Creek, St. Helena Island, Beaufort River, South Carolina
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Capers Creek
Click for Map
Mon -- 02:12 AM EDT     6.81 feet High Tide
Mon -- 06:43 AM EDT     Sunrise
Mon -- 07:51 AM EDT     0.79 feet Low Tide
Mon -- 12:56 PM EDT     Moonset
Mon -- 02:36 PM EDT     7.08 feet High Tide
Mon -- 08:11 PM EDT     Sunset
Mon -- 08:14 PM EDT     1.48 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.66.46.86.55.542.41.20.81.32.43.85.26.3776.24.93.42.11.51.72.43.5

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 (20,4,5,8)
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Ground Weather Radar Station Charleston, SC
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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.