Friday, March5, 2021
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Marine Weather and Tides
James, SC

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:41AMSunset 6:21PM Friday March 5, 2021 11:33 PM EST (04:33 UTC) Moonrise 12:30AMMoonset 10:58AM Illumination 50% Phase: Third Quarter Moon; Moon at 22 days in cycle
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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AMZ256 Coastal Waters From Murrells Inlet To South Santee River Sc Out 20 Nm- 907 Pm Est Fri Mar 5 2021
Overnight..NE winds 5 to 10 kt, increasing to 15 to 20 kt. Seas 2 to 3 ft.
Sat..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sat night..N winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft.
Sun..N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft.
Sun night..N winds 10 to 15 kt. Seas 2 to 3 ft.
Mon..N winds 10 to 15 kt, becoming ne 5 to 10 kt in the afternoon. Seas 2 ft.
Mon night..E winds 5 kt. Seas 2 ft.
Tue..E winds 5 kt, becoming se. Seas 2 ft.
Wed..SE winds 5 to 10 kt. Seas 2 ft.
AMZ200 907 Pm Est Fri Mar 5 2021
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. High pressure will build in from the northwest this weekend, finally reaching the carolinas on Monday. Light southerly winds will develop behind the high by Tuesday and continue Wednesday.


7 Day Forecast for Marine Location Near James, SC
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location: 33.31, -79.68     debug


Area Discussion for - Charleston, SC
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FXUS62 KCHS 060348 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1048 PM EST Fri Mar 5 2021

SYNOPSIS. High pressure will prevail this weekend and through much of next week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/. Tonight: Aloft, high cirrus clouds will continue to spread across the region as the left front quadrant of a passing h25 jet shifts across the Southeast. Although a light northeast sfc wind will be in place, high clouds will likely limit overall cooling potential through much of the night, even as a h5 shortwave rounds the southern base of a broad mid/upper lvl trough positioned across the Northeast United States. Despite a fair amount of moisture arriving in the mid-upper lvls along with mid-lvl forcing and upper-lvl divergence in place, the bulk of low-lvl moisture will remain south of the area where sfc low pressure tracks near an east-west oriented cold front. Model soundings, the most recent 00Z CHS sounding, and 10-15 degree sfc temp-dewpt spreads indicate a significant amount of dry air from the sfc to the 500mb lvl, supporting a dry forecast for all areas across southeast South Carolina and Southeast Georgia through the overnight period. In general, low temps should range in the low/mid 40s away from the coast with a few upper 30s possible across northern parts of Berkeley County.

SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/. High pressure will remain the dominant feature over the weekend and early next week. Dry weather is expected, with the possible exception being on Saturday when a few showers could brush the far southeast Georgia coast as a weak system passes well to the south. The main forecast concern for the period is the potential for frost or a freeze each morning. Favorable radiational cooling under clear skies and light winds will allow temperatures to fall into the low/mid 30s across most locations inland of the beaches. These temperatures are supportive of frost development, however relative humidity values are a bit low. Opted to maintain patchy frost in the forecast for now, but coverage could certainly be higher if conditions trend more favorably. In addition, freezing temperatures are possible across the far interior. Freeze Watches and/or Warnings could be needed. High temperatures will remain unseasonably cool as well, generally peaking in the mid to upper 50s over the weekend, then around 60/low 60s on Monday.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/. Models are in excellent agreement for the long term forecast. They keep high pressure off the coast, with it's periphery stretching into the Southeast U.S. Dry conditions with moderating temperatures are expected.

AVIATION /04Z SATURDAY THROUGH WEDNESDAY/. VFR conditions will prevail at both CHS and SAV terminals through 00Z Sunday.

Extended Aviation Outlook: VFR.

MARINE. Tonight: High pressure will persist across local waters while weak low pressure passes south of the region near a cold front. In general, east-northeast winds will average no higher than 10-15 kt early tonight, but are anticipated to increase slightly after midnight with the approach of a h5 shortwave from the west. Fair cold air advection across the waters will be in place late, but 1000 mb geostrophic flow is rather limited (~20 kt). Given the setup, expect winds to turn northeast after midnight with a slight surge in wind speeds gusting up to 20 kt at times. Seas should range between 2-3 ft across nearshore waters and around 4 ft across offshore Georgia waters.

Saturday through Wednesday: Elevated northeast to north winds are expected over the weekend, especially Saturday night into Sunday morning with strong pressure rises and cold air advection. The best chance for Small Craft Advisories will be across the outer Georgia waters for 25 kt wind gusts. Opted to hold off on issuance as conditions appear marginal at this time. Winds and seas will improve early next week as high pressure moves over the area and the pressure gradient relaxes. No additional marine headlines are expected.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . None. MARINE . None.



NEAR TERM . DPB SHORT TERM . LONG TERM . AVIATION . DPB MARINE . DPB


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NIWS1 - North Inlet-Winyah Bay Reserve, SC 26 mi48 min NW 1.9 42°F 1020 hPa40°F
41029 - Capers Nearshore (CAP 2) 35 mi25 min E 3.9 G 7.8 54°F 56°F1020 hPa
CHTS1 39 mi45 min ENE 5.1 G 5.1 52°F 58°F1020.6 hPa
FBIS1 - Folly Island, SC 45 mi33 min E 5.1 G 5.1 54°F 1021.2 hPa (+1.3)
MROS1 - 8661070 - Springmaid Pier, SC 47 mi45 min 46°F

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Georgetown County Airport , SC19 mi38 minN 010.00 miFair39°F36°F87%1021 hPa
Moncks Corner Berkeley County, SC21 mi38 minN 010.00 miFair45°F41°F87%1020.3 hPa

Link to 5 minute data for KGGE

Wind History from GGE (wind in knots)
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Last 24hrCalmCalmNW4CalmN4N5N5N5N6NE6NE8E6E8E10SE12SE9SE8E6CalmCalmCalmCalmCalmCalm
1 day agoCalmCalmW3CalmCalmCalmW4CalmCalmN5N4N5NE3W5NW10W8
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Tide / Current Tables for Jamestown Bridge, Santee River, South Carolina
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Jamestown Bridge
Click for Map
Fri -- 12:30 AM EST     Moonrise
Fri -- 12:32 AM EST     -0.05 feet Low Tide
Fri -- 04:54 AM EST     1.25 feet High Tide
Fri -- 06:41 AM EST     Sunrise
Fri -- 10:57 AM EST     Moonset
Fri -- 01:22 PM EST     0.07 feet Low Tide
Fri -- 05:11 PM EST     1.03 feet High Tide
Fri -- 06:19 PM EST     Sunset
Fri -- 08:32 PM EST     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0-00.30.81.11.21.21.10.90.70.50.30.20.10.10.50.8110.90.80.60.40.2

Tide / Current Tables for Pleasant Hill Landing, Santee River, South Carolina
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Pleasant Hill Landing
Click for Map
Fri -- 12:30 AM EST     Moonrise
Fri -- 03:03 AM EST     2.49 feet High Tide
Fri -- 06:40 AM EST     Sunrise
Fri -- 10:44 AM EST     0.17 feet Low Tide
Fri -- 10:57 AM EST     Moonset
Fri -- 03:20 PM EST     2.05 feet High Tide
Fri -- 06:18 PM EST     Sunset
Fri -- 08:32 PM EST     Last Quarter
Fri -- 10:55 PM EST     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.72.32.52.42.11.81.30.90.50.20.20.61.21.7221.81.51.10.70.40.10.1

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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