Marine Weather and Tide Forecast for Port Wentworth, GA
April 17, 2024 5:15 PM EDT (21:15 UTC) Change Location
Sunrise 6:50 AM Sunset 7:56 PM Moonrise 1:27 PM Moonset 2:50 AM |
AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 318 Pm Edt Wed Apr 17 2024
Tonight - S winds 10 kt. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds and se 2 ft at 9 seconds.
Thu - SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: S 2 ft at 5 seconds and se 2 ft at 9 seconds.
Thu night - SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: se 3 ft at 9 seconds.
Fri - SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: se 3 ft at 9 seconds. A slight chance of showers and tstms in the afternoon.
Fri night - SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: se 3 ft at 9 seconds and S 2 ft at 5 seconds.
Sat - SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: se 3 ft at 9 seconds and S 2 ft at 5 seconds. A slight chance of showers and tstms in the afternoon.
Sat night - SW winds 10 kt, becoming W after midnight. Seas 2 to 3 ft. A slight chance of showers and tstms.
Sun - NE winds 10 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms.
Sun night - NE winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely with a slight chance of tstms.
Mon - N winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Mon night - NE winds 10 to 15 kt. Seas 4 to 5 ft.
winds and seas higher in and near tstms.
winds and seas higher in and near tstms.
AMZ300 318 Pm Edt Wed Apr 17 2024
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - High pressure will persist through the end of the work week. A cold front is looking to bring a bit more unsettled weather to our area this weekend. High pressure returns early next week.
Area Discussion for - Charleston, SC
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FXUS62 KCHS 171959 AFDCHS
Area Forecast Discussion National Weather Service Charleston SC 359 PM EDT Wed Apr 17 2024
SYNOPSIS
High pressure will persist through the end of the work week. A cold front is looking to bring a bit more unsettled weather to our area this weekend. High pressure returns early next week.
NEAR TERM /UNTIL 6 AM THURSDAY MORNING/
Rest of this Afternoon: Surface analysis from this morning shows high pressure extending into the local forecast area from the east, while to the west a long wave trough aloft is positioned over the Great Lakes. A short wave trough could be analyzed in the vicinity of far western NC. Quiet and cloudy conditions will likely prevail across the forecast area through the rest of the afternoon. Due to the thicker cloud cover, high temperatures were decreased across most locations away from the direct beaches. A weak sea breeze has begun to form, with 1 PM observations showing winds tipping to the SSW across the coastline.
Tonight: The aforementioned short wave trough will swing across the southeastern states, with guidance suggesting a few showers could form across the SC Midlands. 15% PoPs have been introduced across portions of inland southeastern GA for a few hours overnight to account for these showers. However, forecast soundings indicate the showers would have a lot of dry air to overcome, so any rainfall may not actually make it to the surface. The cloud cover is forecast to remain in place through the overnight hours, yielding overnight low temperatures in the low to mid 60s. This cloud cover will also limit the potential for fog formation across the region.
SHORT TERM /6 AM THURSDAY MORNING THROUGH SATURDAY/
Larger scale pattern flattens/becomes a bit more progressive across the CONUS for the latter half of the week as a deeper closed low skirts across south-central Canada and the Northern Plains region.
Surface high pressure offshore across the Bermuda region will be weakening through the period. Some semblance of weak "backdoor" boundary may be sagging down through the region on Thursday while the southern tail end of a better defined boundary presses into and potentially stalls across the southeast region later Friday and into Saturday. Precip chances with these features remain the main forecast concern.
Thursday/Thursday night: As mentioned, a weak "backdoor" boundary is looking to sag down through the region early Thursday with little fanfare, although there could be some lingering nuisance isolated showers exiting the far reaches of the forecast area early on. But the main effect will be to suppress much of the high cloud cover down and out of our area with trend toward increasing sunshine throughout the day along with well above daytime highs in the upper 80s to around 90F. With the warm temperatures and modestly higher surface dewpoints, there is some potential for a few pop-up showers to develop during the afternoon, particularly along an inland pressing sea breeze and across the tri-county area where low level moisture/instability will be greatest. We have opted to leave the forecast dry for now. Dry weather anticipated Thursday night with temperatures dipping into the 60s.
Friday and Saturday: Remaining warm but with increasing shower chances. Southern tail end of a second boundary is looking to press into the region on Friday before slowing/stalling across the southeast region later Friday and through the day Saturday. Modest moisture and instability along/ahead of the boundary will lead to at least some increasing risk for showers and possibly a few thunderstorms across the region, particularly during the daytime hours. Of note; forecast soundings across the area on Saturday show a fair amount of instability and increased winds aloft suggesting at least the possibility of a couple of stronger storms. We will continue to monitor forecast trends.
Otherwise, very warm temperatures continue with highs in the upper 80s and lows in the 60s through the period.
LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/
Overall zonal flow pattern is looking to remain in place across the CONUS through the latter half of the weekend before a piece of northern stream short-wave energy dives out of the Plains and through the Mid-Atlantic/southeast CONUS region and acts to develop a bit more troughiness across the east into next week. Secondary surface wave may be developing in the northern Gulf along the stalled boundary and lifting up through the southeast states and off the Carolina coasts Sunday into Monday, and finally acting to suppress the boundary down into northern Florida. The better rain chances are still shaping up to be later Sunday/Sunday night as the surface wave moves up through the region, subject to further refinement in later forecasts, with showers lingering into Monday.
Sunday has the look of a cool air wedge developing through Carolinas into Georgia north of the surface wave track, setting the stage for an abrupt cool down in temperatures as reflected in the latest MAV guidance (upper 80s Saturday to the lower-middle 70s on Sunday).
Surface high pressure redevelops across the region for Tuesday into the middle of next week with a subsequent drying trend and rebounding temperatures.
AVIATION /20Z WEDNESDAY THROUGH MONDAY/
Prevailing VFR through 18Z Thursday at KCHS/KJZI/KSAV.
Extended Aviation Outlook: VFR conditions are likely to dominate through Saturday, although with some increasing shower chances.
Flight restrictions are looking most likely on Sunday with a wave of low pressure moving through the region.
MARINE
Tonight: High pressure will dominate across the local marine waters tonight, with SW winds around 10 knots expected. A few gusts around 20 knots are possible along the direct coastline this afternoon associated with the sea breeze. Seas will average 2 to 3 feet.
Thursday through Monday: High pressure near Bermuda will remain the dominant player through at least Thursday with overall south to southwesterly flow. Winds will be locally enhanced along the coast during the afternoon into the evening with formation of a sea breeze. But with gusts 20 knots or less and seas 2 to 3 feet, marine headlines are not anticipated.
Surface boundary will be pressing into the southeast states later Friday, potentially stalling across the region into the weekend before finally pressing through the region late in the weekend into Monday. Overall southerly/southwesterly flow will persist through much of the weekend before shifting into the north/northeast thereafter. Seas remain largely 3 feet or less through much of the weekend before north to northeasterly flow behind the boundary leads to building seas early next week.
CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...None.
Area Forecast Discussion National Weather Service Charleston SC 359 PM EDT Wed Apr 17 2024
SYNOPSIS
High pressure will persist through the end of the work week. A cold front is looking to bring a bit more unsettled weather to our area this weekend. High pressure returns early next week.
NEAR TERM /UNTIL 6 AM THURSDAY MORNING/
Rest of this Afternoon: Surface analysis from this morning shows high pressure extending into the local forecast area from the east, while to the west a long wave trough aloft is positioned over the Great Lakes. A short wave trough could be analyzed in the vicinity of far western NC. Quiet and cloudy conditions will likely prevail across the forecast area through the rest of the afternoon. Due to the thicker cloud cover, high temperatures were decreased across most locations away from the direct beaches. A weak sea breeze has begun to form, with 1 PM observations showing winds tipping to the SSW across the coastline.
Tonight: The aforementioned short wave trough will swing across the southeastern states, with guidance suggesting a few showers could form across the SC Midlands. 15% PoPs have been introduced across portions of inland southeastern GA for a few hours overnight to account for these showers. However, forecast soundings indicate the showers would have a lot of dry air to overcome, so any rainfall may not actually make it to the surface. The cloud cover is forecast to remain in place through the overnight hours, yielding overnight low temperatures in the low to mid 60s. This cloud cover will also limit the potential for fog formation across the region.
SHORT TERM /6 AM THURSDAY MORNING THROUGH SATURDAY/
Larger scale pattern flattens/becomes a bit more progressive across the CONUS for the latter half of the week as a deeper closed low skirts across south-central Canada and the Northern Plains region.
Surface high pressure offshore across the Bermuda region will be weakening through the period. Some semblance of weak "backdoor" boundary may be sagging down through the region on Thursday while the southern tail end of a better defined boundary presses into and potentially stalls across the southeast region later Friday and into Saturday. Precip chances with these features remain the main forecast concern.
Thursday/Thursday night: As mentioned, a weak "backdoor" boundary is looking to sag down through the region early Thursday with little fanfare, although there could be some lingering nuisance isolated showers exiting the far reaches of the forecast area early on. But the main effect will be to suppress much of the high cloud cover down and out of our area with trend toward increasing sunshine throughout the day along with well above daytime highs in the upper 80s to around 90F. With the warm temperatures and modestly higher surface dewpoints, there is some potential for a few pop-up showers to develop during the afternoon, particularly along an inland pressing sea breeze and across the tri-county area where low level moisture/instability will be greatest. We have opted to leave the forecast dry for now. Dry weather anticipated Thursday night with temperatures dipping into the 60s.
Friday and Saturday: Remaining warm but with increasing shower chances. Southern tail end of a second boundary is looking to press into the region on Friday before slowing/stalling across the southeast region later Friday and through the day Saturday. Modest moisture and instability along/ahead of the boundary will lead to at least some increasing risk for showers and possibly a few thunderstorms across the region, particularly during the daytime hours. Of note; forecast soundings across the area on Saturday show a fair amount of instability and increased winds aloft suggesting at least the possibility of a couple of stronger storms. We will continue to monitor forecast trends.
Otherwise, very warm temperatures continue with highs in the upper 80s and lows in the 60s through the period.
LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/
Overall zonal flow pattern is looking to remain in place across the CONUS through the latter half of the weekend before a piece of northern stream short-wave energy dives out of the Plains and through the Mid-Atlantic/southeast CONUS region and acts to develop a bit more troughiness across the east into next week. Secondary surface wave may be developing in the northern Gulf along the stalled boundary and lifting up through the southeast states and off the Carolina coasts Sunday into Monday, and finally acting to suppress the boundary down into northern Florida. The better rain chances are still shaping up to be later Sunday/Sunday night as the surface wave moves up through the region, subject to further refinement in later forecasts, with showers lingering into Monday.
Sunday has the look of a cool air wedge developing through Carolinas into Georgia north of the surface wave track, setting the stage for an abrupt cool down in temperatures as reflected in the latest MAV guidance (upper 80s Saturday to the lower-middle 70s on Sunday).
Surface high pressure redevelops across the region for Tuesday into the middle of next week with a subsequent drying trend and rebounding temperatures.
AVIATION /20Z WEDNESDAY THROUGH MONDAY/
Prevailing VFR through 18Z Thursday at KCHS/KJZI/KSAV.
Extended Aviation Outlook: VFR conditions are likely to dominate through Saturday, although with some increasing shower chances.
Flight restrictions are looking most likely on Sunday with a wave of low pressure moving through the region.
MARINE
Tonight: High pressure will dominate across the local marine waters tonight, with SW winds around 10 knots expected. A few gusts around 20 knots are possible along the direct coastline this afternoon associated with the sea breeze. Seas will average 2 to 3 feet.
Thursday through Monday: High pressure near Bermuda will remain the dominant player through at least Thursday with overall south to southwesterly flow. Winds will be locally enhanced along the coast during the afternoon into the evening with formation of a sea breeze. But with gusts 20 knots or less and seas 2 to 3 feet, marine headlines are not anticipated.
Surface boundary will be pressing into the southeast states later Friday, potentially stalling across the region into the weekend before finally pressing through the region late in the weekend into Monday. Overall southerly/southwesterly flow will persist through much of the weekend before shifting into the north/northeast thereafter. Seas remain largely 3 feet or less through much of the weekend before north to northeasterly flow behind the boundary leads to building seas early next week.
CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...None.
Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
FPKG1 - 8670870 - Fort Pulaski, GA | 15 mi | 46 min | SSW 8G | 75°F | 67°F | 30.11 | ||
41067 | 39 mi | 76 min | 70°F | 2 ft | ||||
ACXS1 - ACE Basin Reserve, SC | 45 mi | 91 min | S 1.9 | 76°F | 30.09 | 65°F | ||
SAXG1 - Sapelo Island Reserve, GA | 53 mi | 76 min | S 13 | 79°F | 30.09 | 67°F |
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Airport Reports
EDIT (hide/show)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
KSAV SAVANNAH/HILTON HEAD INTL,GA | 5 sm | 22 min | S 12 | 10 sm | Mostly Cloudy | 81°F | 63°F | 54% | 30.08 | |
KHXD HILTON HEAD,SC | 23 sm | 25 min | SSW 13G19 | 10 sm | Clear | 75°F | 66°F | 74% | 30.12 |
Tide / Current for Little Back River, Hwy. 17, Back River., Savannah River, South Carolina
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Little Back River
Click for Map
Wed -- 03:50 AM EDT Moonset
Wed -- 05:19 AM EDT 7.34 feet High Tide
Wed -- 06:52 AM EDT Sunrise
Wed -- 12:02 PM EDT 1.37 feet Low Tide
Wed -- 02:25 PM EDT Moonrise
Wed -- 05:57 PM EDT 6.92 feet High Tide
Wed -- 07:55 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 03:50 AM EDT Moonset
Wed -- 05:19 AM EDT 7.34 feet High Tide
Wed -- 06:52 AM EDT Sunrise
Wed -- 12:02 PM EDT 1.37 feet Low Tide
Wed -- 02:25 PM EDT Moonrise
Wed -- 05:57 PM EDT 6.92 feet High Tide
Wed -- 07:55 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Little Back River, Hwy. 17, Back River., Savannah River, South Carolina, Tide feet
12 am |
1.5 |
1 am |
2.5 |
2 am |
4 |
3 am |
5.5 |
4 am |
6.7 |
5 am |
7.3 |
6 am |
7.2 |
7 am |
6.4 |
8 am |
5.2 |
9 am |
3.9 |
10 am |
2.7 |
11 am |
1.8 |
12 pm |
1.4 |
1 pm |
1.8 |
2 pm |
2.8 |
3 pm |
4.2 |
4 pm |
5.7 |
5 pm |
6.6 |
6 pm |
6.9 |
7 pm |
6.5 |
8 pm |
5.5 |
9 pm |
4.2 |
10 pm |
3 |
11 pm |
1.9 |
Savannah River Entrance
Click for Map
Wed -- 01:37 AM EDT 1.74 knots Max Flood
Wed -- 03:49 AM EDT Moonset
Wed -- 05:11 AM EDT -0.00 knots Slack
Wed -- 06:51 AM EDT Sunrise
Wed -- 08:52 AM EDT -1.69 knots Max Ebb
Wed -- 11:28 AM EDT 0.00 knots Slack
Wed -- 02:13 PM EDT 1.48 knots Max Flood
Wed -- 02:25 PM EDT Moonrise
Wed -- 05:40 PM EDT -0.00 knots Slack
Wed -- 07:54 PM EDT Sunset
Wed -- 09:21 PM EDT -1.69 knots Max Ebb
Wed -- 11:48 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:37 AM EDT 1.74 knots Max Flood
Wed -- 03:49 AM EDT Moonset
Wed -- 05:11 AM EDT -0.00 knots Slack
Wed -- 06:51 AM EDT Sunrise
Wed -- 08:52 AM EDT -1.69 knots Max Ebb
Wed -- 11:28 AM EDT 0.00 knots Slack
Wed -- 02:13 PM EDT 1.48 knots Max Flood
Wed -- 02:25 PM EDT Moonrise
Wed -- 05:40 PM EDT -0.00 knots Slack
Wed -- 07:54 PM EDT Sunset
Wed -- 09:21 PM EDT -1.69 knots Max Ebb
Wed -- 11:48 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Savannah River Entrance, Georgia Current, knots
12 am |
1.1 |
1 am |
1.7 |
2 am |
1.7 |
3 am |
1.5 |
4 am |
1 |
5 am |
0.2 |
6 am |
-0.7 |
7 am |
-1.2 |
8 am |
-1.6 |
9 am |
-1.7 |
10 am |
-1.3 |
11 am |
-0.5 |
12 pm |
0.5 |
1 pm |
1.2 |
2 pm |
1.5 |
3 pm |
1.4 |
4 pm |
1.2 |
5 pm |
0.6 |
6 pm |
-0.3 |
7 pm |
-1 |
8 pm |
-1.4 |
9 pm |
-1.7 |
10 pm |
-1.6 |
11 pm |
-0.9 |
Charleston, SC,
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