Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Columbia, SC

Version 3.4
What's New / NOTES
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 6:13AMSunset 8:29PM Saturday May 27, 2017 5:52 AM EDT (09:52 UTC) Moonrise 7:11AMMoonset 9:35PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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 270720
afdcae
area forecast discussion
national weather service columbia sc
320 am edt Sat may 27 2017

Synopsis
Generally fair and warm today, with a slight chance of late
day evening thunderstorms northern areas. A frontal boundary
will provide a slight chance of thunderstorms Sunday afternoon.

A front will slowly move through into the region Monday and
stall, providing a chance of showers and thunderstorms.

Near term through tonight
Upper high over the gulf of mexico, with upper trough over the
central conus. Upper energy will shift east into the tennessee
valley SRN apps mid atlantic. Most of our fa will be dry and capped,
but better moisture to the north with the upper energy and surface
trough expected to lead to thunderstorm activity developing and
shifting east across tn N ga W nc. Some high resolution model
guidance suggests some of this activity could hold together into
our N NE fa late today this evening before dissipating. Will
indicate slight chance pops for tha area.

Spc day one outlook has the N fa in a mrgl risk of severe.

Moderate instability expected this afternoon with
surface temperatures in the lower 90s and strong shear.

Forecast soundings show plenty of dry air at mid levels along
with an inverted-v in lower levels. Forecast soundings also
indicate a very strong capping inversion with 700mb temperatures
over +10c which is a strong limiting factor. Convective temps
around 100 degrees so do not expect initiation to occur in our
area. Severe threat could be during the late afternoon and
evening hours from upstream convection moving into the area with
corfidi vectors from the west northwest. Damaging wind would be
primary threat with dcape just under 1000 j kg and fairly
unidirectional hodographs.

Short term Sunday through Monday night
Upper high to shift east into the E gulf of mexico fl, with upper
trough to our north. Upper impulses and surface waves to ride by
mainly just to our north, with surface front approaching from the
north and surface high axis remaining to our south, Sunday. This,
along with increasing moisture, to provide slight chance to chance
pops Sunday aftn eve, generally appearing to favor northern areas.

Surface front to move into our region Monday, providing chance
pops. Considerable instability and deep layer shear will provide
a severe threat. SPC has region outlooked in a slgt risk day 3.

Long term Tuesday through Friday
Models indicate weak upper troughiness to shift into the SE conus.

Surface front appears will stall near our region, with sufficient
atmospheric remaining in place, providing continued mainly
diurnal slight chance to chance pops.

Aviation 07z Saturday through Wednesday
High confidence inVFR conditions throughout the 24-hr taf
period.

Surface high pressure centered to the south continues to provide
dry weather over the region through today. Satellite imagery
showing some high clouds advecting over the forecast area but
forecast soundings indicate a very dry atmospheric column so do
not expect to see any lower clouds through the forecast period.

The atmosphere becomes moderately unstable this afternoon but
the lack of deep moisture and a significant capping inversion
will prevent convection from impacting the terminals.

Fog is not expected to develop this morning due to a 20-25 knot
low level jet. Surface winds will be light and variable through
the predawn hours and will pick up after daybreak to around 10
to 15 knots gusting to around 20 knots. Gusts will subside
around dusk.

Extended aviation outlook... A cold front will approach Sunday
and stall in the region through early next week. The front will
help support scattered thunderstorms and associated
restrictions.

Hydrology
Recent rains have prompted river flood warnings and advisories
for a few of our forecast points. Please consult our web page
for the latest more detailed information.

Cae watches warnings advisories
Ga... None.

Sc... None.

Synopsis... 99
near term... 99
short term... 99
long term... 99
aviation... 99
hydrology...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LMFS1 - Lake Murray SC 20 mi32 min W 11 G 13 73°F 1014.2 hPa
WATS1 - Lake Wateree, SC 24 mi82 min SE 1 G 1.9 60°F 1014.9 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbia - Jim Hamilton L.B. Owens Airport, SC6 mi59 minN 010.00 miFair67°F60°F79%1015 hPa
McEntire Air National Guard Weather Facility Base, SC9 mi1.9 hrsN 010.00 miFair59°F58°F98%1015.7 hPa
Columbia, Columbia Metropolitan Airport, SC13 mi56 minWSW 510.00 miFair66°F59°F78%1014.5 hPa
Winnsboro/Fairfield County Airport, SC23 mi57 minWSW 510.00 miFair66°F60°F83%1015.2 hPa
Shaw Air Force Base, SC23 mi54 minWSW 410.00 miFair67°F59°F77%1014.2 hPa

Wind History from CUB (wind in knots)
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Last 24hrCalmCalmSW3W5------W8W8
G20
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W9W9W8W6CalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoSW5SW5W9W10
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W7SW4CalmCalmW4W5SW3W4SW3
2 days agoS3CalmCalmCalmSW5SW6S9S76Calm3S10S9S96S6S7S4S46CalmSW5SW4SW3

Tide / Current Tables for Pimlico, West Branch, Cooper River, South Carolina
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Pimlico
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Sat -- 12:47 AM EDT     2.37 feet High Tide
Sat -- 06:13 AM EDT     Sunrise
Sat -- 07:51 AM EDT     -0.71 feet Low Tide
Sat -- 08:09 AM EDT     Moonrise
Sat -- 01:19 PM EDT     1.88 feet High Tide
Sat -- 07:55 PM EDT     -0.89 feet Low Tide
Sat -- 08:20 PM EDT     Sunset
Sat -- 10:28 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.42.21.81.20.5-0.1-0.6-0.7-0.40.31.11.61.91.81.510.4-0.3-0.7-0.9-0.60.21.1

Tide / Current Tables for Jamestown Bridge, Santee River, South Carolina
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Jamestown Bridge
Click for Map
Sat -- 01:55 AM EDT     1.54 feet High Tide
Sat -- 06:11 AM EDT     Sunrise
Sat -- 08:07 AM EDT     Moonrise
Sat -- 10:29 AM EDT     -0.20 feet Low Tide
Sat -- 02:25 PM EDT     1.22 feet High Tide
Sat -- 08:20 PM EDT     Sunset
Sat -- 10:27 PM EDT     Moonset
Sat -- 10:36 PM EDT     -0.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.31.51.51.31.10.80.50.2-0.1-0.2-0.10.30.91.21.21.10.90.70.40.1-0.1-0.2-0.2

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 (5,6,7,8)
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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.