Kiawah Island, SC Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Kiawah Island, SC

April 12, 2024 4:03 PM EDT (20:03 UTC) Change Location
Sunrise 6:51 AM   Sunset 7:49 PM
Moonrise 8:29 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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AMZ330 Charleston Harbor- 321 Pm Edt Fri Apr 12 2024

.small craft advisory in effect until 10 pm edt this evening - .

Tonight - W winds 15 to 20 kt with gusts to 25 kt.

Sat - W winds 10 to 15 kt with gusts to 20 kt.

Sat night - W winds 5 to 10 kt.

Sun - W winds 5 kt, becoming S 10 to 15 kt with gusts to 20 kt in the afternoon.

Sun night - SW winds 10 to 15 kt with gusts to 20 kt.

Mon - SW winds 10 to 15 kt.

Mon night - SW winds 10 to 15 kt.

Tue - SW winds 10 to 15 kt.

Tue night - S winds 10 to 15 kt.

Wed - S winds 10 to 15 kt.

Wed night - S winds 10 to 15 kt.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 67 degrees.

AMZ300 321 Pm Edt Fri Apr 12 2024

Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - 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.


7 Day Forecast for Marine Location Near Kiawah Island, SC
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Area Discussion for - Charleston, SC
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FXUS62 KCHS 121741 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 141 PM EDT Fri Apr 12 2024

SYNOPSIS
High pressure will gradually build across the region into the weekend, persisting through next week.

NEAR TERM /THROUGH TONIGHT/
Early this afternoon, satellite water vapor indicated a broad longwave trough across the east coast, with a shortwave passing over the southern Appalachians. The disturbance is expected to pass east, tracking over middle and eastern NC this afternoon and evening. This feature may support a weak field of Cu across the CHS Tri-county this afternoon. At the sfc, a sfc trough will sweep across the forecast area late this afternoon and evening. This feature should bring a surge of wind gusts and CAA. Temperatures are on pace to peak in the mid 70s this afternoon.

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.

Tonight: High pressure will spread into the area from the west, though we will main a relatively tight pressure gradient through the night. Winds will remain gusty in the evening but should gradually diminish to be more like 10 mph by late Friday night. Temperatures are expected to range from the upper 40s inland to the low 50s along the coast.

SHORT TERM /SATURDAY THROUGH MONDAY/
The mid-levels will consist of a trough just off most of the East Coast Saturday morning with ridings over the Central U.S.
The trough will shift further offshore into Sunday, with the ridge barely moving to the east. The ridge moves over the MS River Valley by late Monday. Overall, mainly northwest flow will prevail over our area. At the surface, High pressure will be centered over the northern Gulf of Mexico Saturday morning, with a trough along the spine of the Appalachians. The trough will shift closer to the coast Saturday evening, then dissipate overnight. At the same time, the High will gradually shift eastward, becoming located over or near the FL Panhandle by Sunday morning. The High will pass to our south Sunday afternoon, moving off the Southeast U.S. coast by Sunday night, then closer to Bermuda by late Monday. The High and it's periphery will be the dominant feature for our weather, bringing our area dry conditions.

Saturday WNW winds could be breezy in the daylight hours. But they'll ease in the evening and overnight. Skies will be sunny/clear. Low-level thickness values support high temperatures generally in the mid 70s, even at the beaches due to offshore winds. Lows will range from the upper 40s to the mid 50s at the beaches.

Sunday skies will be sunny, with some increasing cirrus overnight. Winds shift to the SW during the day, with a notable sea breeze developing during the afternoon and then trending inland. The combination of 850 mb temperatures and low-level thickness values support above normal highs in the lower 80s to maybe middle 80s, except cooler at the beaches. Lows will also be mild, in the upper 50s to lower 60s.

Monday skies will be sunny, with SW winds during the day, followed by another noticeable afternoon sea breeze moving inland. The combination of 850 mb temperatures and low-level thickness values support well above normal highs in the mid to upper 80s, except cooler at the beaches.

LONG TERM /MONDAY NIGHT THROUGH THURSDAY/
Mid-level ridging will be moving over the MS River Valley Monday night. It's axis will shift over our region Tuesday night, then move offshore on Wednesday, leading to zonal flow that'll prevail overhead into Thursday. The Bermuda High will remain locked in place and that'll keep our weather dry and push any fronts or systems north of our area. The summerlike pattern will keep temperatures well above normal.

AVIATION /18Z 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. It could be breezy on Saturday.

MARINE
Today through tonight: West to west-southwest winds will remain elevated and gusty across the waters today and tonight. Small Craft Advisories have been issued for all waters for today and will remain into much of tonight. Winds will turn more northwesterly overnight and remain elevated. The advisories will continue for the longest period of time across the Charleston County waters and the outer Georgia waters.

Rip Currents: The combination of lingering swell energy and strong and gusty westerly winds will produce a moderate risk of rip currents at all beaches today.

High pressure will be centered over the northern Gulf of Mexico Saturday morning, with a trough along the spine of the Appalachians. The trough will shift closer to the coast Saturday evening, then dissipate overnight. At the same time, the High will gradually shift eastward, becoming located over or near the FL Panhandle by Sunday morning. The High will pass to our south Sunday afternoon, moving off the Southeast U.S. coast by Sunday night, then closer to Bermuda by late Monday, where it'll strengthen and remain in place for most of next week. It's periphery will be the dominant feature for our weather, driving our local winds. Expect gusty WNW winds Saturday morning that'll ease into the afternoon. A summerlike wind pattern sets up on Sunday, with morning winds backing, followed by gusty winds along the land/sea interface in the afternoon due to the formation of the sea breeze. Gusts could reach 20 kt in the Charleston Harbor with its passage. Winds then veer in the evening and overnight, with some weak coastal jetting developing. This pattern looks to repeat itself through the end of the marine period. Seas should generally be 2-3 ft.

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 AMZ350-374.
Small Craft Advisory until 6 AM EDT Saturday for AMZ352-354.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
CHTS1 16 mi46 min W 14G19 72°F 67°F29.88
ACXS1 - ACE Basin Reserve, SC 18 mi79 min WSW 7 72°F 29.9544°F
41076 24 mi62 min 6 ft
41067 27 mi79 min 66°F3 ft
41029 - Capers Nearshore (CAP 2) 30 mi116 min SW 18G23 67°F 29.8854°F
41065 30 mi102 min 6 ft


Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KJZI CHARLESTON EXECUTIVE,SC 10 sm28 minW 16G2310 smClear75°F43°F31%29.87
KCHS CHARLESTON AFB/INTL,SC 22 sm67 minWSW 19G2910 smClear73°F43°F33%29.87
Link to 5 minute data for KJZI


Wind History from JZI
(wind in knots)
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Tide / Current for Kiawah River Bridge, South Carolina
   
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Kiawah River Bridge
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Fri -- 05:44 AM EDT     0.07 feet Low Tide
Fri -- 06:54 AM EDT     Sunrise
Fri -- 09:29 AM EDT     Moonrise
Fri -- 12:02 PM EDT     5.27 feet High Tide
Fri -- 05:47 PM EDT     -0.02 feet Low Tide
Fri -- 07:48 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Kiawah River Bridge, South Carolina, Tide feet
12
am
6.7
1
am
6
2
am
4.6
3
am
2.9
4
am
1.4
5
am
0.3
6
am
0.1
7
am
0.7
8
am
1.8
9
am
3.1
10
am
4.2
11
am
5
12
pm
5.3
1
pm
4.9
2
pm
4
3
pm
2.6
4
pm
1.3
5
pm
0.3
6
pm
-0
7
pm
0.6
8
pm
1.8
9
pm
3.3
10
pm
4.7
11
pm
5.8



Tide / Current for Charleston Harbor Entrance, South Carolina Current
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Charleston Harbor Entrance
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Fri -- 03:02 AM EDT     -2.78 knots Max Ebb
Fri -- 06:14 AM EDT     0.00 knots Slack
Fri -- 06:52 AM EDT     Sunrise
Fri -- 08:27 AM EDT     1.55 knots Max Flood
Fri -- 09:27 AM EDT     Moonrise
Fri -- 12:06 PM EDT     -0.00 knots Slack
Fri -- 03:16 PM EDT     -2.19 knots Max Ebb
Fri -- 06:14 PM EDT     0.00 knots Slack
Fri -- 07:47 PM EDT     Sunset
Fri -- 08:46 PM EDT     1.73 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Charleston Harbor Entrance, South Carolina Current, knots
12
am
-0.2
1
am
-1.4
2
am
-2.4
3
am
-2.8
4
am
-2.4
5
am
-1.4
6
am
-0.3
7
am
0.8
8
am
1.5
9
am
1.5
10
am
1.2
11
am
0.8
12
pm
0.1
1
pm
-0.9
2
pm
-1.7
3
pm
-2.2
4
pm
-2
5
pm
-1.2
6
pm
-0.2
7
pm
0.8
8
pm
1.5
9
pm
1.7
10
pm
1.5
11
pm
1.2




Weather Map
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GEOS Local Image of southeast   
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Charleston, SC,



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