Thursday, January23, 2020
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Marine Weather and Tides
George, SC

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:16AMSunset 5:39PM Thursday January 23, 2020 2:59 AM EST (07:59 UTC) Moonrise 6:25AMMoonset 4:35PM Illumination 4% Phase: Waning Crescent; Moon at 28 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- 1006 Pm Est Wed Jan 22 2020
.small craft advisory in effect through Thursday afternoon...
Overnight..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.
Thu..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.
Thu night..NE winds 15 to 20 kt, becoming E 10 to 15 kt after midnight. Seas 4 to 5 ft. A slight chance of showers in the evening, then a chance of showers after midnight.
Fri..SE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of rain in the morning, then rain likely with isolated tstms in the afternoon.
Fri night..S winds 15 to 20 kt, becoming sw 10 to 15 kt after midnight. Seas 4 to 6 ft. Showers with isolated tstms.
Sat..W winds 15 to 20 kt. Seas 4 to 6 ft, subsiding to 3 to 4 ft.
Sun..NW winds 10 to 15 kt. Seas 2 to 3 ft.
Mon..N winds 10 to 15 kt. Seas 2 ft. Winds and seas higher in and near tstms.
AMZ200 1006 Pm Est Wed Jan 22 2020
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Small craft advisory continues as winds and seas remain heightened into Thursday. The next system approaches late this week into the weekend for more rounds of small craft advisory chances. High pressure builds in with improving marine conditions into the middle of next week.


7 Day Forecast for Marine Location Near George, SC
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location: 33.37, -79.27     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 230738 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 238 AM EST Thu Jan 23 2020

SYNOPSIS. Another night with near to below freezing temperatures, before a warmup into late week. Rain will spread across the area Friday and linger into Saturday, as a low pressure system moves from the Gulf of Mexico then across the Carolinas. Clearing, with fair weather in the upcoming week expected, temperatures seasonably cool, and not nearly as cold as the last dew days.

UPDATE. No big changes necessary from the ongoing forecast with this update.

NEAR TERM /THROUGH FRIDAY/. Stiff northerly flow will diminish through into Thursday as gradient begins to relax as high pressure weakens as it continues to extend down from the north while the low near the northern Bahamas moves farther off to the east. Overall, expect air mass to modify as N winds veer slowly around to the NE and eventually more easterly into Fri morning as high shifts farther off the coast. The very dry column with pcp water values less than an inch, will begin to moisten in a deeper SW flow aloft. This should bring mainly mid to high clouds over the area into Thurs aftn. Model soundings also indicate some potential for stratus development early Thurs morning with very shallow low level moisture present. Rain should hold off until early Fri morning when on shore flow brings an increase in moisture through column and better lift. Otherwise gusty northerly winds will diminish with passing cirrus and thickening clouds into Thurs night.

Air mass will continue to modify slowly. Expect another cool night tonight with lows within a few degrees of freezing most places. Temps on Thurs will rebound toward normal, reaching mid 50s most places. By Thurs night, increasing clouds and moisture will help to keep overnight lows in the 40s most places.

SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/. Rain will overspread the area Friday, lingering into early Saturday, as low pressure tracks rapidly from the NE Gulf of Mexico at dawn, to across the Carolinas Friday evening. A good bit of the PCPN will be stable rain, embedded with isolated convection. Since m much of the pre-storm wind flow will be southerly tending to westerly, there is little concern at this time regarding frozen precipitation types. System total rainfall Friday into early Saturday 0.35"-0.50" for most areas, with coastal zones favored slightly, as sea showers scattered in coverage, move landward early on Friday, having resided along a coastal trough nearshore. Saturday expect full column drying trends, and west flow, isolated convection at best, since downslope flow and mid-level drying to shut down most precipitation. Temperatures to rise above normal both Friday and Saturday, with CAA late, as the southern extent of a dynamic system scrapes the area.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Fair and dry this period, as deep-layered arid air covers the region with moderate cold air advection in wake of the cyclone passing to the north. A mainly dry short-wave Monday may bring post-frontal 850 mb cloud, otherwise fair weather, and seasonably cool in the extended period, not far from climatology numbers, with generous amounts of sunshine minutes expected.

AVIATION /06Z THURSDAY THROUGH MONDAY/. Mid-level ridge axis overhead early this morning, will push off the Carolina Coasts later this morning. This will allow cirrus to overspread the area from the west, at 1st it will be thin, but with time the cirrus will become more opaque and more widespread. Sfc ridging will persist down the East Coast of the U.S., all the way down to Fl/Ga. Flow in the lower levels will become more dominant from the E-SE. And could see the stratocu/altocu deck just off the NC-SC Coasts partially move onshore late this aftn and especially this evening. VFR conditions to dominate this 24 hr period, possibly dropping to MVFR due to the onshore movement of the stratocu cloud deck. Not much vertical extent of the low level clouds and thus will keep pcpn out of the fcst this period. limited to NNE winds 5 to 10 kt inland, and 10 to occasionally 15 kt across the coastal terminals . will all veer to the NE-ENE by the end of this period.

Extended Outlook . VFR with possible MVFR by early Fri. By late Fri into Sat, periodic IFR/LIFR conditions from cloudiness and liquid pcpn. This a result of the next storm system getting it's act together across the Gulf Coast States Fri and finally lifts NE across the Carolinas thru Sat.

MARINE. Tight gradient between high pressure extending down from the north and low pressure over the northern Bahamas, will maintain gusty northerly winds over the waters. The winds will diminish slowly as the low moves off to the east and high shifts closer towards the coast, but overall stiff N-NE flow and seas up to 5 to 8 ft will continue with Small Craft Advisory conditions through at least Thurs.

As the center of high to the north shifts farther off the east coast late Thurs, a lighter onshore return flow will develop for a brief period heading into Fri morning. Overall, winds will diminish through the period below SCA thresholds by Thurs, but seas above 6 ft in outer waters will linger on, but should drop below SCA thresholds briefly across all waters into Fri morning.

Advisories are possible Friday and Saturday, mainly due to seas of 6-7 feet offshore. Marine visibility will suffer Friday, as rain overspreads the 0-20 nm waters, and isolated TSTMs are possible late Friday and Saturday, likely near the western wall of the Gulf Stream. Marine conditions will improve beginning late Saturday into Sunday. A weak cold front may stir up winds briefly Monday, but overall, much improved marine conditions heading into next week.

ILM WATCHES/WARNINGS/ADVISORIES. SC . None. NC . None. MARINE . Small Craft Advisory until 6 PM EST this evening for AMZ250- 252-254-256.

SYNOPSIS . 08 UPDATE . MAS NEAR TERM . RGZ SHORT TERM . MJC LONG TERM . SHK AVIATION . DCH MARINE . MJC


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NIWS1 - North Inlet-Winyah Bay Reserve, SC 5 mi74 min N 4.1 38°F 1025 hPa28°F
MROS1 - 8661070 - Springmaid Pier, SC 27 mi59 min 38°F
41029 - Capers Nearshore (CAP 2) 43 mi51 min NE 16 G 23 44°F 53°F1026 hPa
FBIS1 - Folly Island, SC 58 mi59 min N 15 G 17 42°F 1025.3 hPa (-1.0)34°F

Wind History for Springmaid Pier, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Georgetown County Airport , SC5 mi64 minN 010.00 miFair34°F28°F81%1025.7 hPa

Link to 5 minute data for KGGE

Wind History from GGE (wind in knots)
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Tide / Current Tables for Georgetown, Sampit River, South Carolina
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Georgetown
Click for Map
Thu -- 02:31 AM EST     -0.32 feet Low Tide
Thu -- 06:25 AM EST     Moonrise
Thu -- 07:18 AM EST     Sunrise
Thu -- 08:24 AM EST     4.17 feet High Tide
Thu -- 03:14 PM EST     -0.05 feet Low Tide
Thu -- 04:36 PM EST     Moonset
Thu -- 05:39 PM EST     Sunset
Thu -- 08:32 PM EST     3.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.2-0.3-0.20.41.52.63.64.14.13.72.921.10.3-00.20.91.92.73.33.332.4

Tide / Current Tables for Hagley Landing, Waccamaw River, South Carolina
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Hagley Landing
Click for Map
Thu -- 03:16 AM EST     -0.28 feet Low Tide
Thu -- 06:25 AM EST     Moonrise
Thu -- 07:18 AM EST     Sunrise
Thu -- 08:58 AM EST     3.88 feet High Tide
Thu -- 03:58 PM EST     -0.04 feet Low Tide
Thu -- 04:35 PM EST     Moonset
Thu -- 05:39 PM EST     Sunset
Thu -- 09:06 PM EST     3.11 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.40.70-0.3-0.10.71.82.83.63.93.73.22.41.60.80.2-00.31.22.12.83.132.6

Weather Map
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wmap_A
GEOS Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wilmington, NC (2,6,7,8)
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Ground Weather Radar Station Wilmington, NC
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.