Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Columbia, SC

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:01AMSunset 5:18PM Tuesday November 21, 2017 2:29 PM EST (19:29 UTC) Moonrise 9:33AMMoonset 7:58PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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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7 Day Forecast for Marine Location Near Columbia, SC
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location: 34.03, -80.9     debug


Area Discussion for - Columbia, SC
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Fxus62 kcae 211902
afdcae
area forecast discussion
national weather service columbia sc
202 pm est Tue nov 21 2017

Synopsis
A weak wave of low pressure will shift NE from the gulf of mexico to
offshore the carolinas, proving a slight chance of light rain through
early tonight. Another area of low pressure is expected to
shift northeast from the gulf of mexico to offshore the
carolinas, providing a chance of rain Wednesday night and
Thursday. Fair this weekend, with cooler conditions early next
week as a dry cold front pushes through.

Near term through tonight
An upper trough extending from the great lakes region south into
the gulf of mexico will gradually shift eastward tonight.

Surface high pressure ridging into the forecast area from off
the mid- atlantic coast this afternoon will weaken and shift
northward tonight. A wave of low pressure along the gulf of
mexico will move toward the south carolina coast and deepen and
shift northeastward overnight. Onshore flow and isentropic lift
will promote rain chances through the period. The deepest
moisture will be south and east of the area, so have continued
to indicate the best chance east. Mild overnight low
temperatures expected under mostly cloudy skies, in the upper
40s to near 50.

Short term Wednesday through Thursday night
Upper troughiness will extend from the midwest south into the gulf
of mexico, with a series of upper impulses shifting through our
region late Wednesday through Thursday night. Our region appears
will be generally in between systems early Wednesday, as first wave
will be departing off to the ne, while a dry frontal boundary will
attempt to shift into our region Wednesday, slowly getting over the
mountains while battling nearly parallel flow aloft. In general,
models showing weak areas of low pressure developing in the eastern
gulf of mexico and tracking towards fl and the carolina coast, while
surface high pressure builds into the mid atlantic. Chances of
precipitation ramp up late Wednesday through late Thursday,
especially for the central and southern counties, diminishing
Thursday night. Highs on Wednesday a bit above normal in the
middle to upper 60s, lowering to the lower to middle 50s
Thursday. Lows Wednesday night ranging from the upper 30s north
to the middle 40s south.

Long term Friday through Tuesday
Latest GFS keeps the second surface low and most of the associated
moisture offshore Friday Friday night, with some drier air working
into our area Friday, though depending on how much rain we get
Wednesday night and Thursday and how good of a low level wedge gets
established, low cloudiness may be slow to erode and push out of the
region. As a result, some low confidence for Friday so for now will
stay close to model consensus. Fair this weekend as system pushes
farther offshore and upper trough digging into the E CONUS provides
a drier NW flow aloft, with dry cool canadian high pressure building
into the region Monday and Tuesday.

Aviation 18z Tuesday through Sunday
Vfr conditions this afternoon expected to deteriorate tonight.

A wave of low pressure along the eastern gulf of mexico will
shift toward the south carolina coast tonight and deepen as it
shifts northeastward. Isentropic lift and an onshore flow will
provide a chance of rain at the terminals through tonight. The
chance of rain is too low to include in the terminals at this
time. The chance of rain will gradually diminish toward daybreak
as low pressure off the coast shift further northeastward and
the deeper moisture shifts east. Models showVFR ceilings this
afternoon deteriorating to MVFR ifr overnight. Ceilings may
return toVFR around 15z Wednesday, but confidence in
improvement timing is low.

Extended aviation outlook... A front lingering near the coast
may help support MVFR or ifr conditions through Thursday.

Cae watches warnings advisories
Ga... None.

Sc... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LMFS1 - Lake Murray SC 20 mi70 min SE 4.1 G 7 60°F 1017.9 hPa
WATS1 - Lake Wateree, SC 24 mi60 min ESE 4.1 G 6 63°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbia - Jim Hamilton L.B. Owens Airport, SC6 mi37 minN 010.00 miMostly Cloudy63°F48°F60%1018.8 hPa
McEntire Air National Guard Weather Facility Base, SC9 mi92 minESE 410.00 miOvercast62°F49°F64%1019.6 hPa
Columbia, Columbia Metropolitan Airport, SC13 mi34 minN 010.00 miOvercast62°F50°F65%1018.5 hPa
Winnsboro/Fairfield County Airport, SC23 mi35 minN 010.00 miOvercast61°F50°F68%1018.6 hPa
Shaw Air Force Base, SC23 mi34 minE 410.00 miOvercast65°F50°F58%1017.8 hPa

Wind History from CUB (wind in knots)
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Last 24hrCalmSE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3S4S3S4Calm
1 day agoW11
G17
W8W9NW5N3Calm333CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm4SE443
2 days agoSW12
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SW7SW4S6S7S6S8S11
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NW8NW94

Tide / Current Tables for Pimlico, West Branch, Cooper River, South Carolina
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Pimlico
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Tue -- 12:17 AM EST     1.73 feet High Tide
Tue -- 06:56 AM EST     Sunrise
Tue -- 06:56 AM EST     0.45 feet Low Tide
Tue -- 09:26 AM EST     Moonrise
Tue -- 12:49 PM EST     1.98 feet High Tide
Tue -- 05:14 PM EST     Sunset
Tue -- 07:42 PM EST     0.54 feet Low Tide
Tue -- 07:56 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.71.51.310.70.50.40.60.91.31.71.921.91.71.41.10.80.60.60.71.11.4

Tide / Current Tables for Jamestown Bridge, Santee River, South Carolina
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Jamestown Bridge
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Tue -- 01:20 AM EST     1.12 feet High Tide
Tue -- 06:55 AM EST     Sunrise
Tue -- 09:25 AM EST     Moonrise
Tue -- 09:37 AM EST     0.14 feet Low Tide
Tue -- 01:51 PM EST     1.29 feet High Tide
Tue -- 05:13 PM EST     Sunset
Tue -- 07:55 PM EST     Moonset
Tue -- 10:17 PM EST     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.91.11.110.90.70.60.40.20.20.20.50.91.21.31.31.110.80.60.40.30.20.3

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Columbia, SC (14,3,4,5)
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Ground Weather Radar Station Columbia, SC
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weather_mapweather_map weather_map

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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.