Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Barnwell, 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 6:56AMSunset 5:26PM Tuesday November 13, 2018 2:27 AM EST (07:27 UTC) Moonrise 12:02PMMoonset 10:32PM Illumination 27% Phase: Waxing Crescent; Moon at 5 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- 1013 Pm Est Mon Nov 12 2018
Rest of tonight..S winds 10 to 15 kt with gusts to 20 kt. Showers with a slight chance of tstms.
Tue..W winds 5 to 10 kt. A slight chance of tstms. A chance of showers in the morning, then showers likely in the afternoon.
Tue night..N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt after midnight. Showers likely with a slight chance of tstms in the evening, then a chance of showers after midnight.
Wed..NE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. Showers likely.
Wed night..NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Waves 1 to 2 ft. Showers with a slight chance of tstms.
Thu..NE winds 10 kt, becoming nw in the afternoon. Showers with a slight chance of tstms in the morning, then showers likely in the afternoon.
Thu night..NW winds 5 to 10 kt. A chance of showers.
Fri..NW winds 10 kt.
Fri night..NW winds 5 to 10 kt.
Sat..N winds 5 to 10 kt.
Sat night..N winds 5 to 10 kt. Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 66 degrees.
AMZ300 1013 Pm Est Mon Nov 12 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A series of storm systems will impact the area through mid week with cool and dry high pressure returning by this weekend. A mainly dry cold front could move through early next week.


7 Day Forecast for Marine Location Near Barnwell, SC
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location: 33.23, -81.36     debug


Area Discussion for - Columbia, SC
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Fxus62 kcae 130222 aaa
afdcae
area forecast discussion... Updated
national weather service columbia sc
922 pm est Mon nov 12 2018

Synopsis
A low pressure system developing over the western gulf coast
states will bring widespread rainfall to the forecast area
through Tuesday. A second low pressure system will bring more
rain Wednesday into Thursday. Drier air returns to the region
for Friday into the weekend.

Near term until 6 am Tuesday morning
Widespread rainfall spreading across the forecast area this
evening will continue into the overnight hours, associated with
a strong 40-50 knot southwesterly low level jet. Rainfall
amounts have generally been around an inch or so in most
locations over the past 3 hours but last few scans of radar data
showing some enhanced reflectivities and dual pol data
suggesting some of the stronger showers have embedded 1.5-2
in hr rain rates. Highest totals so far today have been across
the upper csra and western midlands with a gradient to lower
values eastward. Will continue to carry categorical pops into
the overnight hours and then lower them a bit to likely late
tonight as the low level jet wanes and shifts east.

Temperatures not going to move too much tonight but may actually
rise a few degrees in the far eastern midlands and lower csra
closer to the stalled coastal front as low pressure rides along
the boundary into southeast ga around dawn Tuesday. Atmosphere
has been quite stable with cad wedge conditions and
northeasterly flow so instability has been confined to the coast
near the boundary.

Short term 6 am Tuesday morning through Thursday night
Upper low will cut off over texas and move slowly east to the
mississippi and ohio valleys, maintaining a SW flow aloft over our
forecast area (fa). Weak in situ wedge expected to remain over the
western and central carolinas and csra Tuesday. A surface boundary
will come through Tuesday Tuesday night. Cold canadian high pressure
center to build into the mid atlantic and northeast Tuesday
night Wednesday behind the boundary. The frontal boundary will stall
just to our south, and upper energy will move through from the sw
Wednesday Thursday with surface low tracking up the coast.

Isentropic lift precipitation expected to provide widespread
rain, with strong cold air damming regime in place Wed thu,
providing cool, somewhat breezy and rainy conditions. Models
indicate upper low to open and accelerate to the ene Thursday
night, with surface low moving well to our ne, with premise for
drier air coming in from the west gradually scouring out the low
level wedge cloudiness Thursday night.

Long term Friday through Monday
Weak dry high pressure behind the departing system is expected to
move in Friday Saturday. Guidance indicating lows could be cool
enough to warrant some frost concerns over some portions of the fa
early Saturday morning depending on the timing and placement of the
high center and any resultant wind, and extent of any upper level
cloudiness. Confidence limited at this time. A front will approach
from the NW Sunday, but appears may stall to our north late Sunday
into Monday as an upper disturbance moves east across the region. At
this time, it appears that moisture from this system may remain just
north of our fa.

Aviation 02z Tuesday through Saturday
Expect ifr or lower conditions through much of the TAF period.

There will also be low-level wind shear overnight.

Cold air damming wedge is firmly in place over the region with
widespread ifr lifr conditions in place. Strong isentropic lift
along with a strong low level jet providing ample moisture
transport into the region will bring significant rain to the
terminals during the 00z-06z time frame. The rain will not have
much impact on the vis cig as they are already quite low and
rain actually may improve vsby a bit during heavier showers.

Generally northeast winds around 5 knots expected this evening
into overnight but then shifting to the north and northwest
during the day Tuesday as reinforcing high pressure builds in
from the north. There will be a strong south to southwest jet
above the surface overnight with the 2000ft wind near 40 knots.

Included low-level wind shear through 12z.

There may be a few isolated thunderstorms in the forecast area
later but observation trends show lightning confined well to
the southwest. Believe the thunderstorm chance is too low to
include in the terminal forecasts at this time.

Extended aviation outlook... Widespread MVFR or ifr conditions
associated with a slow moving frontal system will likely
continue through Thursday.

Hydrology
With the appearance of ample moisture feeding into this system,
having a tropical connection from the eastern pacific, guidance
indicating total precipitation amounts today through Thursday
of 2 inches south to 4 inches north. This, along with runoff
from even higher amounts upstream north of our fa, provides high
confidence of river flooding at some river forecast points.

So far, river flood warnings have already been hoisted for some
area river forecast points along the congaree river, carolina
eastman and gadsden. Additional warnings for other points may be
issued later when confidence warrants.

Cae watches warnings advisories
Ga... None.

Sc... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHDS1 - Strom Thurmond Dam, SC 54 mi47 min NNE 6 G 8.9 44°F
LMFS1 - Lake Murray SC 61 mi67 min NNW 1.9 G 7 44°F 1016.6 hPa

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Barnwell Regional Airport, SC2 mi32 minN 08.00 miOvercast48°F48°F100%1017.3 hPa

Wind History from BNL (wind in knots)
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1 day agoNE5NE5NE6NE5NE8NE7NE6NE6NE8NE75NE6N7N5CalmCalmCalmCalmNE4E6NE5NE5NE4N4
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Tide / Current Tables for Cuckolds Creek, Combahee River, South Carolina
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Cuckolds Creek
Click for Map
Tue -- 04:09 AM EST     3.26 feet High Tide
Tue -- 06:50 AM EST     Sunrise
Tue -- 09:34 AM EST     1.98 feet Low Tide
Tue -- 11:57 AM EST     Moonrise
Tue -- 04:39 PM EST     3.57 feet High Tide
Tue -- 05:22 PM EST     Sunset
Tue -- 10:22 PM EST     2.27 feet Low Tide
Tue -- 10:30 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.62.93.23.33.22.92.62.2222.22.52.83.13.43.53.63.43.12.82.52.32.3

Tide / Current Tables for Tulifiny River, I-95 bridge, South Carolina
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Tulifiny River
Click for Map
Tue -- 02:48 AM EST     4.66 feet High Tide
Tue -- 06:51 AM EST     Sunrise
Tue -- 08:53 AM EST     0.83 feet Low Tide
Tue -- 11:58 AM EST     Moonrise
Tue -- 03:18 PM EST     5.12 feet High Tide
Tue -- 05:23 PM EST     Sunset
Tue -- 09:41 PM EST     0.96 feet Low Tide
Tue -- 10:31 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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33.94.54.74.33.62.71.71.10.81.22.13.144.75.154.53.62.71.71.111.4

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Columbia, SC (2,6,7,8)
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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.