Tuesday, November20, 2018 L-36.com


Marine Weather and Tides
Hollywood, 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.

Sunrise 6:53AMSunset 5:17PM Tuesday November 20, 2018 3:45 PM EST (20:45 UTC) Moonrise 3:59PMMoonset 4:01AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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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AMZ330 Charleston Harbor- 316 Pm Est Tue Nov 20 2018
Tonight..NW winds 5 to 10 kt, becoming N after midnight.
Wed..N winds 5 to 10 kt.
Wed night..N winds 5 to 10 kt.
Thu..NE winds 10 to 15 kt with gusts to 20 kt.
Thu night..NE winds 15 kt with gusts to 20 kt. A slight chance of showers.
Fri..NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.
Fri night..E winds 10 to 15 kt. Showers likely.
Sat..S winds 10 kt. Showers likely.
Sat night..NW winds 5 to 10 kt.
Sun..NW winds 5 kt. A slight chance of showers.
Sun night..SW winds 5 to 10 kt. A chance of showers. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 63 degrees.
AMZ300 316 Pm Est Tue Nov 20 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail through Friday, then a low pressure system will move through on Saturday. A cold front will move through Sunday night followed by high pressure into the middle of next week.


7 Day Forecast for Marine Location Near Hollywood, SC
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location: 32.73, -80.07     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 202031
afdchs
area forecast discussion
national weather service charleston sc
331 pm est Tue nov 20 2018

Synopsis
High pressure will prevail through Friday, then a low pressure
system will move through on Saturday. A cold front will move
through Sunday night followed by high pressure into the middle
of next week.

Near term until 6 am Wednesday morning
Tonight: surface analysis shows that the cold front is very
close to entering the forecast area as of 20z. The front is
expected to pass quickly this evening and move offshore. As it
does, clouds will decrease as cooler drier air moves in. High
pressure centered near the ARKLATEX will bridge across the
southern appalachians tonight and begin building into the
forecast area through daybreak. Clear skies will prevail and
much cooler temperatures as well. The forecast features lows in
the upper 30s well inland ranging to the mid upper 40s at the
coast.

Short term 6 am Wednesday morning through Friday
Surface high pressure will prevail through Wednesday with clear
skies and below-normal high temps in the low mid 60s. A
reinforcing cold front will drop through Wednesday night
followed by canadian high pressure for Thursday. A southern
stream upper shortwave will cause a weak trough to develop off
our coast Thursday afternoon. We're mainly expecting an increase
in cloudiness as a result though a few showers will be possible
over the coastal waters. A stronger upper shortwave will
approach on Friday, bringing increasing low-level moisture into
the area and strengthening the coastal trough. Scattered showers
will be increasingly likely during the day Friday as isentropic
ascent strengthens.

Long term Friday night through Tuesday
Model agreement over the last several runs has improved and
areas of precipitation will begin to overspread the forecast
area from the south east Friday night into Saturday as low
pressure approaches. While a fair bit of uncertainty continues,
some improvement in conditions is looking possible Sunday as the
leading low pulls away from the area while a stronger trough
upstream begins to dig towards the southeast, inducing shortwave
ridging over the region. This additional, stronger low pressure
system looks to cross nearby Monday into Tuesday while parent
troughing possibly becomes more negatively tilted. While the
best forcing looks to remain inland of the forecast area,
unsettled conditions could continue into early next week.

Aviation 20z Tuesday through Sunday
Vfr conditions will prevail at kchs and ksav through 18z
Wednesday. Clouds will clear out this evening as a cold front
pushes through from the west. Still a low end chance of seeing a
brief shower at kchs this afternoon, but no impacts will occur.

Extended aviation outlook:VFR conditions expected through
Thursday night. Flight restrictions increasingly likely Friday
through Saturday as low pressure impacts the area.

Marine
Tonight: a cold front will move off the coast this evening and
high pressure will begin to build in. This will turn the low
level flow from westerly to northerly and eventually
northeasterly overnight. Wind speeds will increase to around 15
knots across most of the local waters. Seas will tick upward,
becoming as high as 4 feet in the outer waters and the
charleston county waters.

Northeast winds will strengthen considerably Wednesday night
behind a reinforcing cold front. A tight northeast gradient will
then persist through Friday afternoon before winds clock around
in response to low pressure moving up the coast. However,
winds seas will likely remain elevated into Saturday. A
prolonged period of small craft advisories is expected starting
later Wednesday night and continuing into Saturday. Another
surge is possible on Monday as a cold front sweeps through.

Tides coastal flooding
Strong northeast winds Wednesday night through Friday combined
with increasing astronomical effects will likely result in minor
to moderate coastal flooding with the Thursday and Friday
morning high tides.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term... Bsh
short term... Jrl
long term... Jmc
aviation... Bsh jrl
marine... Bsh jrl
tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHTS1 9 mi27 min WSW 2.9 G 5.1
FBIS1 - Folly Island, SC 10 mi45 min WSW 2.9 G 4.1 64°F 1017.5 hPa (-1.0)55°F
ACXS1 - ACE Basin Reserve, SC 24 mi60 min WSW 1.9 65°F 1017 hPa56°F
41029 - Capers Nearshore (CAP 2) 24 mi37 min W 7.8 63°F 63°F1016 hPa
41033 36 mi37 min Calm G 0
41004 - EDISTO - 41 NM Southeast of Charleston, SC 54 mi25 min W 12 G 16 78°F1017.3 hPa

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC4 mi50 minSW 45.00 miMostly Cloudy with Haze64°F57°F78%1017.3 hPa
Charleston, Charleston Air Force Base, SC13 mi1.8 hrsW 610.00 miOvercast65°F55°F70%1016.9 hPa
Mount Pleasant Regional-Faison Field, SC19 mi70 minSW 510.00 miA Few Clouds64°F57°F78%1016.9 hPa

Wind History from JZI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW3CalmCalm--W7W4NW9SW3SW4SW4
1 day agoNE6CalmN4N5N5N4CalmCalmCalmCalmCalmW4CalmNW3CalmNW3NW4N4NW363CalmW4W5
2 days agoNE6NE4CalmNE5N4N5N4N3N4CalmCalmN4N4N6N6N5N5N6NE7NE8
G13
NE8NE7NE6NE9

Tide / Current Tables for Church Creek bridge, Wadmalaw River, South Carolina
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Church Creek bridge
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Tue -- 12:08 AM EST     0.42 feet Low Tide
Tue -- 04:00 AM EST     Moonset
Tue -- 06:54 AM EST     Sunrise
Tue -- 07:16 AM EST     7.47 feet High Tide
Tue -- 12:37 PM EST     0.62 feet Low Tide
Tue -- 03:58 PM EST     Moonrise
Tue -- 05:16 PM EST     Sunset
Tue -- 07:38 PM EST     7.03 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.71.73.24.86.177.47.25.942.20.90.71.32.645.36.36.9764.32.3

Tide / Current Tables for Charleston Harbor, off Fort Sumter, South Carolina Current (expired 1996-12-31)
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Charleston Harbor
Click for Map
Tue -- 12:10 AM EST     0.00 knots Slack
Tue -- 02:45 AM EST     1.95 knots Max Flood
Tue -- 04:00 AM EST     Moonset
Tue -- 06:14 AM EST     -0.00 knots Slack
Tue -- 06:54 AM EST     Sunrise
Tue -- 09:17 AM EST     -2.34 knots Max Ebb
Tue -- 12:39 PM EST     0.00 knots Slack
Tue -- 03:07 PM EST     1.89 knots Max Flood
Tue -- 03:57 PM EST     Moonrise
Tue -- 05:15 PM EST     Sunset
Tue -- 06:29 PM EST     -0.00 knots Slack
Tue -- 09:32 PM EST     -2.40 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.211.81.91.61.10.3-0.9-1.9-2.3-2.2-1.7-0.80.41.51.91.71.20.5-0.6-1.7-2.3-2.3-1.9

Weather Map and Satellite Images
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wmap_A
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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Wind Forecast for Charleston, SC (15,3,4,5)
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Ground Weather Radar Station Charleston, SC
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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.