James, SC Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for James, SC

April 12, 2024 4:36 PM EDT (20:36 UTC) Change Location
Sunrise 6:51 AM   Sunset 7:49 PM
Moonrise 8:25 AM   Moonset 11:40 PM 
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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.

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Marine Forecasts
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AMZ256 Coastal Waters From Murrells Inlet To South Santee River Sc Out 20 Nm- 259 Pm Edt Fri Apr 12 2024

.small craft advisory in effect through Saturday morning - .

Through 7 pm - SW winds 20 kt with gusts up to 30 kt. Seas 4 to 6 ft.

Tonight - W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft.

Sat - W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.

Sat night - W winds 10 to 15 kt, becoming nw 5 to 10 kt after midnight. Seas 2 to 3 ft.

Sun - NW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 ft.

Sun night - SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

Mon - SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft.

Mon night - SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft.

Tue - SW winds 10 to 15 kt. Seas 2 to 3 ft.

Wed - SW winds 10 to 15 kt. Seas 2 to 3 ft.

AMZ200 259 Pm Edt Fri Apr 12 2024

Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles -
remaining breezy today as low pressure deepens to the north and high pressure builds to our south. Hazardous marine conditions continue today and will gradually improve late tonight into Sunday as high pressure builds into the area into early next week.


7 Day Forecast for Marine Location Near James, SC
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Area Discussion for - Charleston, SC
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FXUS62 KCHS 122009 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 409 PM EDT Fri Apr 12 2024

SYNOPSIS
High pressure will gradually build across the region into the weekend, and persisting through much next week. A cold front might impact the area late in the week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/
Satellite water vapor indicated a broad longwave trough across the eastern U.S., with a shortwave passing over the southern Appalachians this afternoon. The disturbance is expected to pass east, tracking over middle and eastern NC late this afternoon and evening. This feature may support a weak field of cumulus across the CHS Tri-county late this afternoon, dissipating around sunset. At the sfc, a sfc trough will sweep across the forecast area late this afternoon and evening. In the wake of the trough, the combination of weak CAA and a pinched pressure gradient should result in wind gusts remaining past sunset. Conditions tonight will feature clear sky and steady west winds. Minimum temperatures are forecast to range from the mid 40s inland to the low to mid 50s along the coast.

Lake Winds: Strong and gusty winds will continue across Lake Moultrie, as well as along the western lakeshore. Frequent gusts into the 25-30 knot range are expected and a Lake Wind Advisory has been extended until midnight tonight.

SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/
Saturday: The upper trough in the Atlantic will pull further away, allowing for ridging and it's associated climbing heights to approach from the west. Surface high pressure initially over the northern Gulf of Mexico coast will expand east, while a trough lingers upstream from the local area through the day. Downslope flow, full insolation and 850 mb temperatures about 2C greater than on Friday suggests an even warmer day. This results in afternoon highs of 73-77F degrees. There is still a modest gradient in place, and that along with deep mixing will produce some gusty breezes throughout, peaking at 20 mph or a little higher.

Saturday night: High pressure is the main feature, as the trough dissipates or becomes less defined. Winds quickly decouple by sunset, and with clear skies and within a very dry air mass, excellent radiational cooling will commence. We leaned toward the cooler side of guidance, supporting lows generally in the upper 40s and lower 50s. However, some middle 40s are likely in normally colder rural sections of Berkeley, Dorchester and Colleton County, with the Charleston-North Charleston and Savannah urban sections, and the barrier islands in the middle 50s.

Sunday through Monday: An intense upper low digs through southeast Canada, with another deep low moving through the Southwest U.S. In between there is ridging across much of the central states. The local vicinity lies within a fairly dry west-northwest flow, with subtle impulses to move through at times. These features won't be able to generate anything more than some clouds, especially with subsidence associated with Bermuda high pressure eventually establishing itself. This is the beginning of even warmer weather, with higher 850 mb temperatures and heights, along with expanding low level thicknesses. We currently looking at highs well into the 80s, except for coastal sections where the afternoon sea breeze holds temperatures down into the 70s if not cooler. Much warmer Sunday night than the previous night, with winds never fully decoupling in most communities and dew points much higher within a south to southwest synoptic flow.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/
Ridging aloft will prevail through the first half of the week, before it breaks down late in the period. This is in response to a fast moving short wave that is progged to move across the southern tier of the country. However, since we're mainly still under the influence of Atlantic high pressure and the flow aloft in westerly, and moisture is still rather limited through at least Wednesday, rain chances are slim to none. Maybe by late week as a cold front approaches we might finally get some showers into the local area.
Temperatures stay far above climo through most, if not all the week thanks to 850 mb temperatures near or above the 90th percentile.

AVIATION /20Z FRIDAY THROUGH WEDNESDAY/
VFR conditions will prevail at KCHS, KJZI, and KSAV through 18z Saturday. West winds will continue to gusts between 25-30 kts until mid-evening. The rest of the night should feature west winds around 10 kts. Gusty northwest winds are forecast to redevelop across the terminals by 14Z Saturday.

Extended Aviation Outlook: VFR. Gusts will reach near 20 kt at times Saturday afternoon.

MARINE
Tonight: High pressure will continue to build over the marine zones tonight. A sfc trough is timed to sweep across the marine zones this evening, resulting in a pinched pressure gradient and CAA late this evening into the late night hours. West winds may continue to gust to around 25 across the Charleston Harbor into this evening. A Small Craft Advisory is in effect until 10 PM. Outside the harbor, winds across the nearshore waters of SC/GA will gusts between 25-30 kts through most of the night. Seas will remain between 3-6 ft through most of the night. Small Craft Advisories will remain in effect for the majority of tonight. The outer GA waters should see gusts of 25 to 30 kts continue into Saturday morning.

Saturday: The remaining Small Craft Advisories will come down during the morning, as the gradient finally starts to slowly slacken, and high pressure edges east of the northern Gulf of Mexico coast. W winds will drop to 15 kt or less, except a little higher in Charleston Harbor. Offshore flow will allow for seas to fall to less than 3 or 4 feet in the afternoon.

Saturday night through Wednesday night: Excellent boating weather under the control of high pressure, resulting in winds and seas far below any advisory thresholds. One possible exception to that would be Charleston Harbor, with afternoon sea breeze influences having to be carefully monitored due to the potential for some gusts maybe as high as near 25 kt (the requirement for a Small Craft Advisory).

CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...Lake Wind Advisory until midnight EDT tonight for SCZ045.
MARINE...Small Craft Advisory until 10 PM EDT this evening for AMZ330.
Small Craft Advisory until 8 AM EDT Saturday for AMZ350.
Small Craft Advisory until 6 AM EDT Saturday for AMZ352-354.
Small Craft Advisory until 11 AM EDT Saturday for AMZ374.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
NIWS1 - North Inlet-Winyah Bay Reserve, SC 26 mi111 min WSW 15 71°F 29.8346°F
41029 - Capers Nearshore (CAP 2) 35 mi148 min SW 18G23 67°F 29.8854°F
41065 35 mi134 min 6 ft
CHTS1 39 mi48 min WSW 9.9G21 72°F 67°F29.87
MROS1 - 8661070 - Springmaid Pier, SC 47 mi48 min WSW 16G27 71°F 65°F29.79


Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KGGE GEORGETOWN COUNTY,SC 19 sm1 minW 19G2610 smClear72°F41°F33%29.82
KMKS BERKELEY COUNTY,SC 21 sm1 minWSW 11G2310 smClear72°F41°F33%29.84
Link to 5 minute data for KGGE


Wind History from GGE
(wind in knots)
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Tide / Current for Jamestown Bridge, Santee River, South Carolina
   
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Jamestown Bridge
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Fri -- 03:37 AM EDT     1.40 feet High Tide
Fri -- 06:51 AM EDT     Sunrise
Fri -- 09:25 AM EDT     Moonrise
Fri -- 12:07 PM EDT     0.02 feet Low Tide
Fri -- 04:05 PM EDT     1.08 feet High Tide
Fri -- 07:47 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Jamestown Bridge, Santee River, South Carolina, Tide feet
12
am
-0
1
am
0.4
2
am
1
3
am
1.3
4
am
1.4
5
am
1.3
6
am
1.2
7
am
0.9
8
am
0.7
9
am
0.4
10
am
0.2
11
am
0.1
12
pm
0
1
pm
0.2
2
pm
0.6
3
pm
0.9
4
pm
1.1
5
pm
1.1
6
pm
0.9
7
pm
0.8
8
pm
0.6
9
pm
0.4
10
pm
0.2
11
pm
0.1



Tide / Current for Pleasant Hill Landing, Santee River, South Carolina
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Pleasant Hill Landing
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Fri -- 01:46 AM EDT     2.80 feet High Tide
Fri -- 06:51 AM EDT     Sunrise
Fri -- 09:24 AM EDT     Moonrise
Fri -- 09:29 AM EDT     0.05 feet Low Tide
Fri -- 02:14 PM EDT     2.17 feet High Tide
Fri -- 07:46 PM EDT     Sunset
Fri -- 09:32 PM EDT     -0.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Pleasant Hill Landing, Santee River, South Carolina, Tide feet
12
am
2
1
am
2.6
2
am
2.8
3
am
2.6
4
am
2.3
5
am
1.8
6
am
1.3
7
am
0.7
8
am
0.3
9
am
0.1
10
am
0.1
11
am
0.6
12
pm
1.3
1
pm
1.9
2
pm
2.2
3
pm
2.1
4
pm
1.9
5
pm
1.5
6
pm
1.1
7
pm
0.6
8
pm
0.2
9
pm
0
10
pm
0
11
pm
0.6




Weather Map
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Wilmington, NC,



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