Marine Weather and Tide Forecast for Barnwell, SC
March 18, 2024 9:37 PM EDT (01:37 UTC) Change Location
Sunrise 7:30 AM Sunset 7:38 PM Moonrise 12:34 PM Moonset 2:54 AM |
AMZ330 Charleston Harbor- 720 Pm Edt Mon Mar 18 2024
.small craft advisory in effect until 6 am edt Tuesday - .
Tonight - W winds 20 to 25 kt early, becoming nw 20 to 25 kt with gusts to 30 kt. Waves 1 to 2 ft early, building to 2 to 3 ft.
Tue - NW winds 15 kt early, diminishing to 10 kt.
Tue night - SW winds 10 kt.
Wed - W winds 10 kt.
Wed night - SW winds 10 kt, becoming W after midnight.
Thu - N winds 10 to 15 kt, becoming E with gusts to 20 kt in the afternoon.
Thu night - E winds 10 to 15 kt with gusts to 20 kt. A chance of showers after midnight.
Fri - E winds 10 to 15 kt. Showers likely with a slight chance of tstms.
Fri night - NE winds 15 kt. Showers likely with a slight chance of tstms.
Sat - N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.
Sat night - N winds 15 to 20 kt. Waves 1 to 2 ft. A slight chance of showers.
winds and waves higher in and near tstms.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 63 degrees.
winds and waves higher in and near tstms.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 63 degrees.
AMZ300 720 Pm Edt Mon Mar 18 2024
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - High pressure will build over the area tonight and prevail into Thursday. A storm system could impact the area Friday and Saturday, before high pressure returns early next week.
Area Discussion for - Columbia, SC
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FXUS62 KCAE 190055 AFDCAE
Area Forecast Discussion National Weather Service Columbia SC 855 PM EDT Mon Mar 18 2024
SYNOPSIS
Some freezing temperatures are possible tonight and early Tuesday morning across the northern and western Midlands. Dry weather and warmer temperatures follow during the middle of next week. Our next storm system is expected to develop across the southeast late in the week and bring increased chances of rain Friday and Saturday.
NEAR TERM /UNTIL 7 AM TUESDAY MORNING/
Batch of clouds continues to move through the northern Midlands and Pee Dee with much lower dewpoints moving into the western Midlands. Winds have also remained around 10 mph with gusts to 15 mph so temperatures have been a bit slower to fall however with the drier air temperatures will also begin falling.
Continue to expect overnight lows in the western counties will fall to freezing or below so the freeze warning will continue through early Tuesday morning. Elsewhere expect overnight lows generally in the mid 30s.
SHORT TERM /7 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/
After a cold start, deep northwest flow will build in at low levels and aloft Tuesday behind the sharp trough axis and will continue the strong cold-dry advection into the area. PWAT's will fall below 0.2" and cold advection will strongly mitigate any diurnal heating or downsloping, so temps will stay below average and top out right around 60F. Cold advection will steadily weaken overnight Tuesday into Wednesday, but winds will still prevent ideal cooling. So overnight lows will be noticeably warmer than Monday night. With little-no advection to speak of, downsloping flow and diurnal heating will help rapidly warm temps back into the 70's Wednesday afternoon. A very weak dry front is then expected to move across the area late Wednesday into Thursday as a low pressure system moves across the Ohio Valley. Moisture will be so limited that only some mid-level clouds are expected, but a marked wind shift from the northwest to east will occur by Thursday morning.
LONG TERM /THURSDAY THROUGH MONDAY/
Confidence is increasing overall in the long term period as a clearer picture for the SW CONUS trough is no evident in the GEFS and EC ensemble members. Thursday is generally a transition day, with fairly high confidence that we will remain warm and dry ahead of the approaching trough. As now seen in the GEFS and EC (both operational and ensembles), the SW Conus cutoff mid- level low will phase with some stronger southern stream flow and eject eastward Thursday. Strong warm-moist advection will occur ahead of the shortwave across our area by late Thursday night and throughout much of the day Friday. The ensemble solutions nearly universally show a widespread isentropic lift setup with a wedge-like surface ridge in place lee of the Appalachians, as PWAT's climb to around 150% of average. So a fairly classic setup for the region for a fairly prolonged light-moderate overrunning rain event. The trough then will push east and likely develop some sort of coastal low pressure into Saturday. Rainfall totals are still a bit uncertain but confidence is much higher in the PoP's than 24 hours ago. Drier and cooler air will fill in behind the coastal low late Saturday and Sunday.
AVIATION /00Z TUESDAY THROUGH SATURDAY/
High confidence in VFR conditions through the TAF period.
Skies continue to clear out as of 00z and are then expected to remain clear through the rest of the TAF period. West to northwest winds of 10-15 kts, gusting to 20-25 kts continue through about 06z before diminishing to generally less than 10 kts. Winds pick up again after 18z-19z, gusting to near 20 kts.
EXTENDED AVIATION OUTLOOK...Rain and associated restrictions possible Friday.
CAE WATCHES/WARNINGS/ADVISORIES
SC...Lake Wind Advisory until 8 AM EDT Tuesday for SCZ016-018- 020>022-025>031-035-037-038-041-115-116-135>137.
Freeze Warning from 5 AM to 8 AM EDT Tuesday for SCZ016-018- 020-021-025-026-115-116.
GA...Lake Wind Advisory until 8 AM EDT Tuesday for GAZ040-063>065- 077.
Freeze Warning from 5 AM to 8 AM EDT Tuesday for GAZ040-063- 064.
Area Forecast Discussion National Weather Service Columbia SC 855 PM EDT Mon Mar 18 2024
SYNOPSIS
Some freezing temperatures are possible tonight and early Tuesday morning across the northern and western Midlands. Dry weather and warmer temperatures follow during the middle of next week. Our next storm system is expected to develop across the southeast late in the week and bring increased chances of rain Friday and Saturday.
NEAR TERM /UNTIL 7 AM TUESDAY MORNING/
Batch of clouds continues to move through the northern Midlands and Pee Dee with much lower dewpoints moving into the western Midlands. Winds have also remained around 10 mph with gusts to 15 mph so temperatures have been a bit slower to fall however with the drier air temperatures will also begin falling.
Continue to expect overnight lows in the western counties will fall to freezing or below so the freeze warning will continue through early Tuesday morning. Elsewhere expect overnight lows generally in the mid 30s.
SHORT TERM /7 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/
After a cold start, deep northwest flow will build in at low levels and aloft Tuesday behind the sharp trough axis and will continue the strong cold-dry advection into the area. PWAT's will fall below 0.2" and cold advection will strongly mitigate any diurnal heating or downsloping, so temps will stay below average and top out right around 60F. Cold advection will steadily weaken overnight Tuesday into Wednesday, but winds will still prevent ideal cooling. So overnight lows will be noticeably warmer than Monday night. With little-no advection to speak of, downsloping flow and diurnal heating will help rapidly warm temps back into the 70's Wednesday afternoon. A very weak dry front is then expected to move across the area late Wednesday into Thursday as a low pressure system moves across the Ohio Valley. Moisture will be so limited that only some mid-level clouds are expected, but a marked wind shift from the northwest to east will occur by Thursday morning.
LONG TERM /THURSDAY THROUGH MONDAY/
Confidence is increasing overall in the long term period as a clearer picture for the SW CONUS trough is no evident in the GEFS and EC ensemble members. Thursday is generally a transition day, with fairly high confidence that we will remain warm and dry ahead of the approaching trough. As now seen in the GEFS and EC (both operational and ensembles), the SW Conus cutoff mid- level low will phase with some stronger southern stream flow and eject eastward Thursday. Strong warm-moist advection will occur ahead of the shortwave across our area by late Thursday night and throughout much of the day Friday. The ensemble solutions nearly universally show a widespread isentropic lift setup with a wedge-like surface ridge in place lee of the Appalachians, as PWAT's climb to around 150% of average. So a fairly classic setup for the region for a fairly prolonged light-moderate overrunning rain event. The trough then will push east and likely develop some sort of coastal low pressure into Saturday. Rainfall totals are still a bit uncertain but confidence is much higher in the PoP's than 24 hours ago. Drier and cooler air will fill in behind the coastal low late Saturday and Sunday.
AVIATION /00Z TUESDAY THROUGH SATURDAY/
High confidence in VFR conditions through the TAF period.
Skies continue to clear out as of 00z and are then expected to remain clear through the rest of the TAF period. West to northwest winds of 10-15 kts, gusting to 20-25 kts continue through about 06z before diminishing to generally less than 10 kts. Winds pick up again after 18z-19z, gusting to near 20 kts.
EXTENDED AVIATION OUTLOOK...Rain and associated restrictions possible Friday.
CAE WATCHES/WARNINGS/ADVISORIES
SC...Lake Wind Advisory until 8 AM EDT Tuesday for SCZ016-018- 020>022-025>031-035-037-038-041-115-116-135>137.
Freeze Warning from 5 AM to 8 AM EDT Tuesday for SCZ016-018- 020-021-025-026-115-116.
GA...Lake Wind Advisory until 8 AM EDT Tuesday for GAZ040-063>065- 077.
Freeze Warning from 5 AM to 8 AM EDT Tuesday for GAZ040-063- 064.
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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 |
KBNL BARNWELL RGNL,SC | 3 sm | 2 min | WNW 11G16 | 10 sm | Clear | 55°F | 23°F | 28% | 29.92 | |
KAQX ALLENDALE COUNTY,SC | 17 sm | 22 min | NW 07G13 | 10 sm | A Few Clouds | 57°F | 25°F | 29% | 29.89 |
Tide / Current for Bluff Plantation, Combahee River, South Carolina
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Bluff Plantation
Click for Map
Mon -- 01:03 AM EDT 0.34 feet Low Tide
Mon -- 03:50 AM EDT Moonset
Mon -- 07:28 AM EDT Sunrise
Mon -- 07:32 AM EDT 2.90 feet High Tide
Mon -- 01:33 PM EDT Moonrise
Mon -- 02:04 PM EDT 0.54 feet Low Tide
Mon -- 07:33 PM EDT Sunset
Mon -- 08:07 PM EDT 2.50 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 01:03 AM EDT 0.34 feet Low Tide
Mon -- 03:50 AM EDT Moonset
Mon -- 07:28 AM EDT Sunrise
Mon -- 07:32 AM EDT 2.90 feet High Tide
Mon -- 01:33 PM EDT Moonrise
Mon -- 02:04 PM EDT 0.54 feet Low Tide
Mon -- 07:33 PM EDT Sunset
Mon -- 08:07 PM EDT 2.50 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Bluff Plantation, Combahee River, South Carolina, Tide feet
12 am |
0.5 |
1 am |
0.3 |
2 am |
0.5 |
3 am |
0.9 |
4 am |
1.4 |
5 am |
2 |
6 am |
2.6 |
7 am |
2.9 |
8 am |
2.9 |
9 am |
2.6 |
10 am |
2.2 |
11 am |
1.6 |
12 pm |
1.1 |
1 pm |
0.7 |
2 pm |
0.5 |
3 pm |
0.7 |
4 pm |
1 |
5 pm |
1.4 |
6 pm |
1.9 |
7 pm |
2.3 |
8 pm |
2.5 |
9 pm |
2.4 |
10 pm |
2.1 |
11 pm |
1.6 |
Cuckolds Creek
Click for Map
Mon -- 01:26 AM EDT 1.31 feet Low Tide
Mon -- 03:50 AM EDT Moonset
Mon -- 07:28 AM EDT Sunrise
Mon -- 08:15 AM EDT 3.29 feet High Tide
Mon -- 01:33 PM EDT Moonrise
Mon -- 02:27 PM EDT 2.09 feet Low Tide
Mon -- 07:33 PM EDT Sunset
Mon -- 08:50 PM EDT 2.84 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 01:26 AM EDT 1.31 feet Low Tide
Mon -- 03:50 AM EDT Moonset
Mon -- 07:28 AM EDT Sunrise
Mon -- 08:15 AM EDT 3.29 feet High Tide
Mon -- 01:33 PM EDT Moonrise
Mon -- 02:27 PM EDT 2.09 feet Low Tide
Mon -- 07:33 PM EDT Sunset
Mon -- 08:50 PM EDT 2.84 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Cuckolds Creek, Combahee River, South Carolina, Tide feet
12 am |
1.6 |
1 am |
1.3 |
2 am |
1.3 |
3 am |
1.6 |
4 am |
1.9 |
5 am |
2.4 |
6 am |
2.8 |
7 am |
3.1 |
8 am |
3.3 |
9 am |
3.2 |
10 am |
3.1 |
11 am |
2.8 |
12 pm |
2.5 |
1 pm |
2.3 |
2 pm |
2.1 |
3 pm |
2.1 |
4 pm |
2.2 |
5 pm |
2.3 |
6 pm |
2.5 |
7 pm |
2.7 |
8 pm |
2.8 |
9 pm |
2.8 |
10 pm |
2.7 |
11 pm |
2.4 |
Charleston, SC,
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