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Marine Weather and Tide Forecast for Barnwell, SC

June 24, 2024 4:38 PM EDT (20:38 UTC) Change Location
Sunrise 6:16 AM   Sunset 8:42 PM
Moonrise 10:20 PM   Moonset 7:43 AM 
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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- 245 Pm Edt Mon Jun 24 2024

Tonight - SW winds 10 to 15 kt with gusts to 20 kt, diminishing to 5 to 10 kt late. Scattered showers and tstms until early morning, then isolated showers and tstms late.

Tue - SW winds 5 to 10 kt, becoming se in the afternoon. A chance of showers and tstms in the afternoon.

Tue night - S winds 5 to 10 kt. A chance of showers and tstms, mainly in the evening.

Wed - S winds 5 kt, increasing to 10 to 15 kt in the afternoon. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon.

Wed night - S winds 10 kt. A chance of showers and tstms in the evening.

Thu - SW winds 10 to 15 kt. A chance of showers and tstms in the afternoon.

Thu night - S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. A chance of showers and tstms.

Fri - S winds 5 to 10 kt. A chance of showers and tstms.

Fri night - SE winds 5 to 10 kt. A slight chance of showers and tstms.

Sat - SE winds 5 to 10 kt. A slight chance of showers and tstms.

Sat night - S winds 5 to 10 kt.
winds and waves higher in and near tstms.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 84 degrees.

AMZ300 245 Pm Edt Mon Jun 24 2024

Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - High pressure will remain over the western atlantic while a weak cold front approaches the area. This front will likely linger near the area through mid-week.


7 Day Forecast for Marine Location Near Barnwell, SC
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Area Discussion for - Columbia, SC
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FXUS62 KCAE 241900 AFDCAE

Area Forecast Discussion National Weather Service Columbia SC 300 PM EDT Mon Jun 24 2024

SYNOPSIS
Hot temperatures are expected to continue into midweek. Isolated to scattered showers and thunderstorms should occur each afternoon and evening, with better coverage likely Thursday. Increasing heat impacts Friday through the weekend.

NEAR TERM /THROUGH TONIGHT/

KEY MESSAGES: -Max heat indices around 105F today.
-Scattered afternoon storms in eastern area. Marginal risk for severe weather with damaging wind gusts primary threat.

Surface boundary remains weak and diffuse as it moves into the eastern Midlands and southern CSRA with a few showers developing between Sumter and Orangeburg. As the boundary move eastward there it is accompanied by some wind gusts with the direction veering to westerly and the temperatures quickly rising 4 to 6 degrees into the upper 90s at many locations. Although the temperatures are quickly rising the dewpoints are also falling with dewpoints in the western and central Midlands falling into the low to mid 60s. This combination will continue to result in heat index values mainly between 100 and 105 however a few locations in the eastern Midlands may be slightly higher for a brief time. Through the remainder of the afternoon and into the early evening expect the boundary to approach the coast and slow as it becomes more east to west oriented. Concern with any convection which develops will be with dry air in the mid and upper levels thunderstorms could contain strong and gusty winds.
Convection will diminish with sunset and with drier air over the area expect gradually clearing skies with mostly clear conditions by daybreak. High temperatures this afternoon will be in the upper 90s with low tonight falling into the low to mid 70s.

SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/

KEY MESSAGES: -Hot conditions to continue with max heat indices of 100-105.
-Widely scattered to scattered afternoon/early evening thunderstorms, greatest coverage in the southeast Midlands.

The region will be located along the eastern periphery of an upper level ridge on Tuesday. At the surface, a weak front will generally stall just southeast of the area. Higher levels of moisture will persist in closer to proximity to the stalled front (southeastern Midlands) with dewpoints in the upper 60s/lower 70s and precipitable water values around 1.75 inches. However, farther inland, the airmass will be significantly drier with dewpoints bottoming out in the lower to mid 60s and precipitable water values of 1.00-1.25". As a result of the increased moisture and low level convergence, CAMs show isolated to scattered showers and thunderstorms focusing across the eastern Midlands and perhaps lower CSRA during the afternoon and early evening hours on Tuesday. Soundings show enough instability and dry air in place aloft to support a damaging wind threat with any storms that do form. Temperatures will be above normal once again, but with more of a northeasterly/easterly low level flow, expect conditions to be perhaps a couple of degrees cooler than Monday with highs in the mid-upper 90s and heat index values of 100- 105.

The front will lift north of the area on Wednesday, setting up more of a southerly low level flow. Diurnally driven isolated to scattered showers and thunderstorms are possible across most areas.
Slightly rising heights and the southerly flow should result in warmer high temperatures, with highs in the upper 90s in most areas.
Fortunately, dewpoints should mix out enough in the afternoon to keep heat index values to 100-105 degrees.

LONG TERM /THURSDAY THROUGH MONDAY/

KEY MESSAGES: -Highest chances of showers and thunderstorms Thursday, some possibly severe.
-Increasing heat impacts expected Friday through the weekend.

Models show an upper trough swinging through the area on Thursday, and an associated cold front at the surface. This should provide enough forcing to result in at least scattered showers and thunderstorms in the afternoon/evening, and perhaps be the day with the greatest rain chances in the long term. Overall shear is not that strong, but soundings show weaker capping, moderate instability and more a pronounced inverted V, suggesting the potential for a few strong/severe thunderstorms with primarily a wind threat.

Ensembles are in good agreement showing a strengthening upper ridge aloft Friday through the weekend. Diurnally driven scattered showers and thunderstorms are possible each day, but knocked down the NBM POPs a bit as the subsidence aloft looks to be fairly strong.
Temperatures will rise through the weekend beneath the building ridge, and heat impacts will once again become an issue.

Ensembles show the ridge breaking down on Monday as an upper trough passes to the north, potentially resulting in greater rain chances and cooler temperatures.



AVIATION /19Z MONDAY THROUGH SATURDAY/
VFR conditions expected through the TAF period.

Weak frontal boundary continues to move through the terminals with a few showers currently just east of OGB. Chances of showers and thunderstorms at any terminal remain too low to mention however the highest potential remains at OGB. As the boundary moves east of the area winds will veer to westerly with some gusts to 15 mph through this evening. With sunset convection will end and with drier air moving into the area and a 20 to 25 knots LLJ over the area do not expect fog development during the early morning and sunrise hours Tuesday morning.
Winds Tuesday morning will become easterly at 8 knots or less with some cumulus developing from the late morning through the end of the period.

EXTENDED AVIATION OUTLOOK...Increasing chances for afternoon scattered showers and thunderstorms and associated restrictions Tuesday through Friday.

CAE WATCHES/WARNINGS/ADVISORIES
SC...None.
GA...None.




Weather Reporting Stations
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Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KBNL BARNWELL RGNL,SC 3 sm3 minSW 0810 smA Few Clouds99°F68°F37%29.80
KAQX ALLENDALE COUNTY,SC 17 sm23 minW 07G1310 smClear97°F70°F42%29.81
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Wind History graph: BNL
(wind in knots)
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Tide / Current for Bluff Plantation, Combahee River, South Carolina
   
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Bluff Plantation
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Mon -- 02:10 AM EDT     3.60 feet High Tide
Mon -- 06:16 AM EDT     Sunrise
Mon -- 08:35 AM EDT     -0.06 feet Low Tide
Mon -- 08:41 AM EDT     Moonset
Mon -- 02:31 PM EDT     2.97 feet High Tide
Mon -- 08:34 PM EDT     -0.04 feet Low Tide
Mon -- 08:34 PM EDT     Sunset
Mon -- 11:16 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Bluff Plantation, Combahee River, South Carolina, Tide feet
12
am
2.8
1
am
3.4
2
am
3.6
3
am
3.5
4
am
3
5
am
2.3
6
am
1.5
7
am
0.6
8
am
0
9
am
-0
10
am
0.4
11
am
1.2
12
pm
2
1
pm
2.6
2
pm
2.9
3
pm
2.9
4
pm
2.6
5
pm
2
6
pm
1.3
7
pm
0.5
8
pm
0
9
pm
0
10
pm
0.5
11
pm
1.3


Tide / Current for Cuckolds Creek, Combahee River, South Carolina
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Cuckolds Creek
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Mon -- 02:53 AM EDT     4.08 feet High Tide
Mon -- 06:16 AM EDT     Sunrise
Mon -- 08:41 AM EDT     Moonset
Mon -- 08:58 AM EDT     -0.24 feet Low Tide
Mon -- 03:14 PM EDT     3.36 feet High Tide
Mon -- 08:34 PM EDT     Sunset
Mon -- 08:57 PM EDT     -0.15 feet Low Tide
Mon -- 11:16 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Cuckolds Creek, Combahee River, South Carolina, Tide feet
12
am
2.6
1
am
3.4
2
am
3.9
3
am
4.1
4
am
3.8
5
am
3.1
6
am
2.1
7
am
1
8
am
0.1
9
am
-0.2
10
am
0
11
am
0.8
12
pm
1.7
1
pm
2.5
2
pm
3.1
3
pm
3.4
4
pm
3.2
5
pm
2.7
6
pm
1.9
7
pm
0.9
8
pm
0.2
9
pm
-0.1
10
pm
0.1
11
pm
0.9


Weather Map
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GEOS Local Image of southeast   
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Charleston, SC,




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