Monday, May27, 2019 L-36.com


Marine Weather and Tides
Irmo, 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 6:14AMSunset 8:28PM Monday May 27, 2019 8:31 AM EDT (12:31 UTC) Moonrise 1:38AMMoonset 1:02PM Illumination 39% Phase: Third Quarter Moon; Moon at 23 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 Irmo, SC
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location: 34.08, -81.18     debug


Area Discussion for - Columbia, SC
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Fxus62 kcae 271109
afdcae
area forecast discussion
national weather service columbia sc
709 am edt Mon may 27 2019

Synopsis
A strong upper-level ridge will persist over the southeast u.S.

Through Wednesday, producing generally dry weather and near
record high temperatures. There is hope for some relief toward
the end of the week as the upper ridge flattens. A front and
increasing moisture will bring a chance of thunderstorms Friday
into the weekend.

Near term through tonight
Little change in the overall pattern over the forecast area
with the persistent upper ridge anchored over the southeastern
states. Unseasonably hot temperatures continue again today under
mostly sunny skies and deep mixing aided by some downsloping
west-northwesterly flow. Forecast highs again in the upper 90s
to just over 100 degrees and we could see daily records fall
once again. Mostly clear skies tonight with overnight lows
remaining mild in the lower to mid 70s.

Short term Tuesday through Wednesday night
Hot and dry pattern to continue as upper level ridge continues
to dominate the region. A generally dry atmosphere and
subsidence associated with upper ridge is expected to preclude
convection. Isolated convection along a sea breeze possible in
the afternoon, but chances low and would generally be south and
east of our fa. H85 downslope flow will promote hot temperatures
and low level dry air. High temps 98 to 102 expected, with apparent
temps heat index values expected to remain below our local heat
advisory criteria.

Long term Thursday through Sunday
Continued fair Thursday but with temps perhaps just a tad lower
due to apparent cessation of downslope flow as h85 winds become
sw ahead of an approaching boundary. Models indicate the upper
ridge to shift west to the W gomex as weak upper troughiness
moves into the E conus. Models do indicate a weak front coming
in around Friday along with some enhanced moisture higher pw
values. There is some question as to timing of front, eventually
appearing to stall just to our south and becoming diffuse. Mean
h85 to h5 flow progged to be generally W to wnw, limiting
moisture increase. Latest guidance consensus still indicating
only slight chance to low chance pops. MAX temps expected to
trend down, though remaining above normal.

Aviation 11z Monday through Friday
Expect generallyVFR conditions through the 24-hour TAF period.

High pressure at the surface and aloft will remain anchored over
the forecast area. Winds will pick up from the west-northwest by
mid morning to around 10 knots or so and some gusts up to 18
knots possible again this afternoon due to deep mixing of a hot
and dry airmass. Could see some passing thin cirrus clouds today
with some scattered cumulus clouds due to solar insolation. Fog
is not expected to be an issue tonight given the continued dry
airmass and low crossover temperatures from deep mixing. Winds
will subside with sunset.

Extended aviation outlook... No significant impacts expected at
this time.

Fire weather
There is an increased fire danger threat today after several
days of hot and dry conditions and no rain expected in the near
future. Min rh values expected to fall into the 25 to 30 percent
range this afternoon with possible wind gusts up to 15 to 20
mph. Latest erc values are quite high and SPC has parts of the
area outlooked in an elevated risk of fire danger. After
coordination with surrounding offices, decided to hold off on a
sps fire danger statement at this time until coordination with
forestry partners can be done to confirm low fuel moistures.

Climate
Prolonged dry and hot conditions expected, with near daily
record high temperatures possible through Wednesday. There is
also the possibility that temperatures could top out at or above
the all-time records for the month of may. Heat index values up
to 104 expected. Please remain ALERT to the dangers of heat and
prepare accordingly.

The all-time record high temperature for the month of may at
augusta is 101 degrees, set on may 26, 2019.

The all-time record high temperature for the month of may at
columbia is 101 degrees met on 3 dates:
may 25, 2000
may 30, 1898
may 31, 1953
daily record high temperatures for columbia sc (cae) and
augusta ga (ags).

Cae ags
mon 05 27 99 in 1916 99 in 2000
tue 05 28 99 in 1914 99 in 1964
wed 05 29 98 in 1941 99 in 1914.

Note... Temperature records for columbia go back to 1887 and for
augusta back to 1873.

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 5 mi72 min WNW 1.9 G 4.1 77°F 1015.9 hPa
WATS1 - Lake Wateree, SC 31 mi62 min Calm G 1.9 69°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbia, Columbia Metropolitan Airport, SC9 mi96 minN 08.00 miA Few Clouds66°F59°F78%1016 hPa
Columbia - Jim Hamilton L.B. Owens Airport, SC12 mi39 minSW 310.00 miFair75°F61°F62%1016.7 hPa
Winnsboro/Fairfield County Airport, SC17 mi37 minWNW 310.00 miFair72°F60°F69%1017.3 hPa
McEntire Air National Guard Weather Facility Base, SC23 mi96 minNW 310.00 miFair65°F61°F89%1016.6 hPa

Wind History from CAE (wind in knots)
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Last 24hrCalm3NW9NW7W12
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W11W10NW7W4W4SW3W5SW4W4W3SW3SW4SW4Calm3
1 day agoCalmNE3CalmSW6NW4W7
G16
NW8N4NW7N5W6W5S4CalmSW3S3CalmCalmSW3CalmCalmW4S5W4
2 days agoW12W8W7W95NW11NW10
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NW9NW8NW9W7W4CalmSW3CalmW3W3CalmSW3CalmCalmCalmCalm

Tide / Current Tables for Bacon Bridge, Ashley River, South Carolina
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Bacon Bridge
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Mon -- 12:19 AM EDT     0.44 feet Low Tide
Mon -- 02:31 AM EDT     Moonrise
Mon -- 05:37 AM EDT     1.79 feet High Tide
Mon -- 06:14 AM EDT     Sunrise
Mon -- 12:59 PM EDT     0.29 feet Low Tide
Mon -- 01:58 PM EDT     Moonset
Mon -- 06:08 PM EDT     1.69 feet High Tide
Mon -- 08:21 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.50.81.21.51.71.81.71.41.20.80.60.40.30.40.81.21.51.71.61.51.210.7

Tide / Current Tables for Pimlico, West Branch, Cooper River, South Carolina
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Pimlico
Click for Map
Mon -- 12:35 AM EDT     1.13 feet Low Tide
Mon -- 02:31 AM EDT     Moonrise
Mon -- 06:13 AM EDT     Sunrise
Mon -- 06:20 AM EDT     1.64 feet High Tide
Mon -- 01:15 PM EDT     0.73 feet Low Tide
Mon -- 01:57 PM EDT     Moonset
Mon -- 06:51 PM EDT     1.55 feet High Tide
Mon -- 08:20 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.11.21.41.51.61.61.61.51.41.210.80.70.811.21.41.51.61.51.41.41.3

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 Columbia, SC (8,2,3,4)
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Ground Weather Radar Station Columbia, 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.