Friday, March5, 2021
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Marine Weather and Tides
McClellanville, 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 6:40AMSunset 6:21PM Friday March 5, 2021 11:26 PM EST (04:26 UTC) Moonrise 12:28AMMoonset 10:57AM 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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AMZ350 Waters From South Santee River To Edisto Beach Sc Out 20 Nm- 1030 Pm Est Fri Mar 5 2021
Tonight..E winds 10 to 15 kt, becoming ne 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft.
Sat..NE winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft.
Sat night..N winds 10 to 15 kt. 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 to 10 kt. Seas 2 ft.
Tue night..E winds 5 to 10 kt. Seas 2 ft.
Wed..E winds 5 to 10 kt. Seas 2 ft.
Wed night..SE winds 5 to 10 kt. Seas 2 ft.
AMZ300 1030 Pm Est Fri Mar 5 2021
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail this weekend and through much of next week.


7 Day Forecast for Marine Location Near McClellanville, SC
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location: 33, -79.36     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 060211 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 911 PM EST Fri Mar 5 2021

SYNOPSIS. A dry cold front overnight will reinforce cool air through the weekend and into Monday, with low temperatures below freezing in most locations early Sunday and again Monday. As this high moves off the coast, pronounced warming will be felt mid week.

UPDATE/.

No changes this update, substantial elevated cloudiness to overtake the region but the low levels of the troposphere remain in a drying mode, so no mentionable POP values.

NEAR TERM /THROUGH SATURDAY NIGHT/. High pressure will dominate the surface pattern through Saturday night. The high, over central Canada, will continue building south through the OH Valley into next week. The only semblance of weather will be a shortwave crossing southern GA and northern FL tonight into Sat. The 5h trough over the East Coast is strong enough to keep the shortwave and the bulk of its moisture suppressed south of the local area. Forecast soundings do show an increase in moisture above 9k with the wave passing south and an increase in mid and upper level cloud cover is anticipated overnight and for the first half of Sat. Moisture aloft shifts southeast later Sat with afternoon skies clearing from northwest to southeast with clear skies expected Sat night.

Increasing cloud cover tonight will help offset the impact of light winds and dry boundary layer conditions. Lows will end up below climo, but not as low as they could be. Highs Sat will again run below climo, with temps in the mid to upper 50s in most areas. Clouds in the morning will gave way to patches of sun by late morning with increasing afternoon sunshine. Light winds and clear skies Sat night will allow for excellent radiational cooling with lows potentially into the upper 20s in typical cold spots.

SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/. Deep layer north-northwesterly flow in place on Sunday as strong mid level trough axis swings through. Surface gradient will remain rather weak, the end result a sunny but very cool afternoon. Highs in the mid 50s some 10 degrees below climatology as will be the lows near 30. The mid level system swings decidedly off the coast by Monday but the surface high remains directly overhead as do higher heights in the entire boundary layer. This will lead to shallow mixing and a similarly cool afternoon as the low level thermal recovery is inhibited from being realized at the surface (the few added degrees a function of solar modification rather than advection).

LONG TERM /TUESDAY THROUGH FRIDAY/. Tuesday afternoon warms back up to climatological norms as high pressure starts to slide off the coast. Even warmer values are slated for Wednesday as the center of the high moves even farther east, though an extension of ridging into the Carolinas will prevent what would've ended up even larger deviations from climo. As this setup largely remains unchanged Thursday into Friday temperatures will continue to climb as the airmass is modified by ample sunshine, the continued ridging from the northeast preventing strong warm advection.

AVIATION /02Z SATURDAY THROUGH WEDNESDAY/. VFR, only high clouds expected, as a system passes near the area, well above restrictions. N-NNE winds to increase a bit after 3-4z as a dry cold front crosses the coast, NNE winds Saturday 6-9 kt, easing to N 2-5 kt at end of TAF cycle.

Extended Outlook . VFR with mostly clear skies Saturday night through Tuesday.

MARINE. Through Saturday night: High pressure centered northwest of the area will maintain northeast flow across the waters through Sat night. Gradient will support 10 to 15 kt with occasional periods of solid 15 kt. Seas 2 to 3 ft with an occasional 4 ft overnight will diminish to around 2 ft by Sat evening/night.

Sunday through Wednesday . Slow moving high pressure will be the dominant wind and wave maker through the period. Early on as the center of the ridge progresses east while remaining to our north winds will be out of the north. As the center makes its closest approach on Tuesday winds will become light and quite variable allowing east to fall to 2 ft, maybe less. A light southerly flow will become established later in the day that will last into Wednesday in response to both the high moving offshore as well as it extending a ridge axis of higher pressures/lower wind speeds into the Carolinas.

ILM WATCHES/WARNINGS/ADVISORIES. SC . None. NC . None. MARINE . None.



SYNOPSIS . ILM UPDATE . MJC NEAR TERM . III SHORT TERM . mbB LONG TERM . mbB AVIATION . 8 MARINE . III/MBB


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41029 - Capers Nearshore (CAP 2) 20 mi48 min E 5.8 G 9.7 54°F 56°F1019.9 hPa
NIWS1 - North Inlet-Winyah Bay Reserve, SC 26 mi101 min WNW 1 42°F 1020 hPa40°F
CHTS1 34 mi56 min ENE 5.1 G 6 52°F 58°F1020.5 hPa
FBIS1 - Folly Island, SC 35 mi86 min E 5.1 G 6 53°F 1021 hPa (+1.7)

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Georgetown County Airport , SC22 mi31 minN 010.00 miFair39°F36°F87%1021 hPa
Mount Pleasant Regional-Faison Field, SC24 mi31 minN 010.00 miPartly Cloudy46°F45°F93%1020.7 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 Cape Romain, South Carolina
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Cape Romain
Click for Map
Fri -- 12:15 AM EST     5.04 feet High Tide
Fri -- 12:28 AM EST     Moonrise
Fri -- 06:36 AM EST     0.21 feet Low Tide
Fri -- 06:40 AM EST     Sunrise
Fri -- 10:56 AM EST     Moonset
Fri -- 12:32 PM EST     4.15 feet High Tide
Fri -- 06:17 PM EST     Sunset
Fri -- 06:47 PM EST     0.07 feet Low Tide
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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54.94.23.2210.30.30.81.82.83.64.14.13.62.81.80.90.20.10.51.52.63.7

Tide / Current Tables for Five Fathom Creek entrance, South Carolina
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Five Fathom Creek entrance
Click for Map
Fri -- 12:29 AM EST     Moonrise
Fri -- 12:31 AM EST     5.27 feet High Tide
Fri -- 06:40 AM EST     Sunrise
Fri -- 06:46 AM EST     0.22 feet Low Tide
Fri -- 10:57 AM EST     Moonset
Fri -- 12:48 PM EST     4.34 feet High Tide
Fri -- 06:18 PM EST     Sunset
Fri -- 06:57 PM EST     0.07 feet Low Tide
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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5.25.24.63.62.31.20.40.20.71.72.73.64.24.343.12.11.10.30.10.41.32.53.6

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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