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Marine Weather and Tides James, SC Version 3.4

What's New / NOTES 10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

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Sunrise 6:15AM

Sunset 8:17PM

Tuesday May 21, 2019 11:39 PM EDT (03:39 UTC)

Moonrise 10:08PM

Moonset 7:32AM

Illumination 90%

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.

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7 Day Forecast for Marine Location Near James, SC

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Area Discussion for - Charleston, SC

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Fxus62 kchs 220209 afdchs area forecast discussion national weather service charleston sc 1009 pm edt Tue may 21 2019 Synopsis High pressure will build over the region this week and will linger into early next week. Near term until 6 am Wednesday morning Tonight: a 5890 meter mid-level ridge will be over the region. At the surface, a weak backdoor cold front seen on satellite and via surface analysis sis till near or just north of the north carolina south carolina border. The front will sag south, but will not reach the area. Instead, high pressure to the north will bridge across the front, leading to more cloud cover and a shifting of winds to the east-southeast across berkeley and northern charleston counties by daybreak. Otherwise, conditions will be rainfree with unseasonably warm weather to prevail. Temps on average are running 2-3f warmer than this time last night, which suggests it'll be a little warmer than last night. Lows will only be in the upper 60s and lower 70s, with even some mid 70s along the immediate coast and in downtown charleston. And as a result the record high min at kcxm could be challenged (see climate section below). Short term 6 am Wednesday morning through Friday Short term guidance indicates the center of a h5 ridge will settle over the southeast u.S. Wednesday through Friday. H85 temperatures on Wednesday are forecast to range from 16 to 18c, warming to around 20c by Friday. On Wednesday, the temperature forecast will be complicated by the position of a old front, likely dissipating over the lowcountry Wednesday afternoon. In addition, a sfc ridge will build south from high pressure centered off the mid-atlantic states. Flow around the high should result in sfc winds to turn from the se, likely supporting a sea breeze Wednesday afternoon. The passage of the sea breeze and weak instability should support a few showers along and west of the breeze. This scenario is supported by the majority of the cams, I will highlight the region with schc pops for showers. High temperatures are forecast to range from the mid to upper 80s across the chs tri-county to the mid 90s across SE ga. On Thursday, sfc high pressure is expected to shift over the western atlantic as the mid-level strengthens over the cwa. The llvl onshore flow and ridging aloft should maintain cinh through the day. Thursday should be hot and dry, with temperatures 1-2 degrees warmer than Wednesday. Llvl thicknesses should increase across the region on Friday, maintaining cinh through the daylight hours. Using a blend of mos, high temperatures are forecast to range from the low to mid 90s along the coast to the upper 90s across the inland counties. Afternoon dewpoints may mix into the lower to mid 60s across the inland counties, with near 70 along the coast. The combination of the temperatures and dewpoints are expected to result in heat index values around 100 degrees west of the coastal counties. Long term Friday night through Tuesday The hot and dry pattern will linger this weekend into next week. The h5 ridge is forecast to remain centered over the southeast u.S. Through this weekend, with the ridge shifting south over the gulf of mexico early next week. However, a broad and strong h7 ridge will remain centered over the deep south, with west and downslope h85 winds Sunday night into Tuesday. This pattern is forecast to maintain h85 temps around 20c and 1000-850mb thicknesses above 1430m. Using a blend wpc and mos, high temperatures are forecast to range from the mid to upper 90s across the coastal counties with low 100s across the inland counties. The high temperature records for mon and tues may range very close to record highs, see climate

section below. Heat index values are forecast to reach heat advisory criteria (105 degrees) across portions of SE ga sat-tues, within 1-2 degrees of criteria elsewhere across the inland counties. In fact, the climate prediction center has highlighted the forecast area with a high risk of excessive heat for 5 28 - 5 30. The heat wave potential will be highlighted in the hwo. Aviation 02z Wednesday through Sunday Vfr will dominate. However, with the interaction of the sea breeze and a nearby cold front on Wednesday there might be a shra or possibly a tsra at or near kchs. Odds of this happening though are too remote to consider mention in the 00z TAF set. Extended aviation outlook:VFR. Marine Tonight: a weak pressure gradient will bring generally south winds 15 kt or less. Seas will be about 2 ft. A backdoor cold front will move into the waters north of the marine area late. But as high pressure bridges across the front, winds will shift to the e-se across the far northern waters after 5 or 6 am. Wednesday through Sunday: high pressure will remain over the marine zones through this weekend. Conditions are forecast to remain below small craft advisory criteria. Seas through the period should range from 1-3 feet, with 1-2 feet common Saturday. Winds are expected to remain generally from the south around 10 kts. Climate Record for 05 22... station record high min year ------- --------------- ---- kcxm 76 1998 record for 05 23... station record high min year ------- --------------- ---- kcxm 77 1998 records for 05-27... station record high year(s) ------- ----------- ------- kchs 98 1989 kcxm 95 1962, 1926 ksav 98 1989, 1962 records for 05-28... station record high year(s) ------- ----------- ------- kchs 97 1967, 1964 kcxm 93 2000 ksav 96 1964, 1898 Chs watches warnings advisories Ga... None. Sc... None. Marine... None. Near term... short term... long term... aviation... marine... climate...

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
NIWS1 - North Inlet-Winyah Bay Reserve, SC	26 mi	115 min	SSW 5.1	78°F			1014 hPa	76°F
41029 - Capers Nearshore (CAP 2)	35 mi	32 min	SSW 5.8 G 9.7	77°F	77°F		1015.8 hPa
CHTS1	39 mi	46 min	S 5.1 G 6	78°F	79°F		1016.1 hPa
FBIS1 - Folly Island, SC	45 mi	40 min	SSW 8.9 G 9.9	77°F			1016.5 hPa (+2.2)	76°F
MROS1 - 8661070 - Springmaid Pier, SC	47 mi	46 min		77°F

Wind History for Charleston, SC

(wind in knots)    EDIT      (on/off)   Help

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Georgetown County Airport , SC	19 mi	65 min	N 0	10.00 mi	Fair	73°F	71°F	94%	1016.3 hPa
Moncks Corner Berkeley County, SC	21 mi	85 min	S 3	10.00 mi	Fair	77°F	69°F	79%	1015.2 hPa

Wind History from GGE (wind in knots)

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Tide / Current Tables for Jamestown Bridge, Santee River, South Carolina

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Tide / Current Tables for Pleasant Hill Landing, Santee River, South Carolina

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Weather Map and Satellite Images

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GOES Local Image of    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.
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Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for Charleston, SC (23,6,7,8)

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Ground Weather Radar Station Wilmington, NC

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Disclaimer: 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 numerious 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.