Sunday, October22, 2017 L-36.com


Marine Weather and Tides
Columbus, GA

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 7:48AMSunset 6:59PM Sunday October 22, 2017 6:50 PM EDT (22:50 UTC) Moonrise 9:17AMMoonset 8:11PM Illumination 8% 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 Columbus, GA
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location: 32.51, -84.87     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 221903
afdffc
area forecast discussion
national weather service peachtree city ga
303 pm edt Sun oct 22 2017

Short term tonight through Monday night
Cold front is currently moving across the lower mississippi river
valley with a pre-frontal trough analyzed just east of the
mississippi river. Surface high pressure has finally begun to push
off the mid atlantic coast. The precipitation shield associated with
the trough front will continue to spread eastward overnight and
approach far western ga during the early morning hours.

The cold front should move through most of the cwfa by the late
afternoon early evening. The 12z nam, GFS and ECMWF all support a
deep 500mb trough swinging through during the day... And all with a
negative tilt and open wave by the time it reaches ga. All have
varying strengths to the mid level system, with the GFS being the
strongest and a little further south with the forcing.

The ECMWF and the NAM take the best forcing just north of the cfwfa,
with some marginally steep lapse rates across the far north. Surface
instability values are a bit higher than they were yesterday, with
all of the CAPE along and ahead of the frontal boundary. Surface
instability across the north is slightly more concurrent with the
marginal lapse rates than in previous model runs. The best cape
values are expected across the southeast cwfa across areas that
should receive the most sunshine. The best shear values are expected
across the northern cwfa in the morning, but some marginal values
are possible across the SE along the frontal boundary.

Isolated to scattered thunderstorms are possible tomorrow beginning
early in the morning in the west. Widespread severe weather is not
anticipated but isolated severe thunderstorms will be possible as
the system moves through. Locally heavy rainfall is also likely as
the cold front moves through tomorrow. Pwats reach near 2" ahead of
the boundary. FFG is rather high, so no widespread flooding is
expected but localized flooding will definitely be possible.

Rainfall amounts should average between 1" and 3", with locally
higher amounts will be possible.

Cooler temperatures and a drier airmass are expected behind the cold
front Monday night. Lows in the 40s and 50s are possible, but the
much cooler air will settle across the region into the long term
portion of the forecast.

Nlistemaa

Long term Tuesday through Sunday
Only tweaks to the long term based on the latest guidance.

Overall, much quieter weather expected.

Bdl
previous discussion...

heavier precipitation should be sweeping east of the forecast area as
the period begins Monday night into early Tuesday. Right now it
appears that moisture will be too limited Wednesday for pops as a
secondary upper trough and associated short wave move across. This
secondary system does push through another shot of good cold
advection with our coolest temperatures of the week expected
Wednesday and Wednesday night. Highly amplified and very progressive
upper pattern transitions the region back to southwesterly upper flow
quickly with a subsequent quick rebound in temperatures back toward
seasonal normals by the end of the week. The next upper trough short
wave and the associated surface front sweep through next weekend.

20

Aviation
18z update...

latest Sat imagery shows lingering stratus from this morning has bkn
up into a widespread CU field. Sct bkn sct025 will be possible for
the next hour or two. Ifr CIGS are expected overnight, along with
increasing chances for shra. Do think the best chances for thunder
will be between 14z and 18z tomorrow and think thunderstorms should
remain isolated to scattered. Winds will remain on the east side
through early tomorrow, but go to the west side behind any
convection the cold front.

Atl confidence... 18z update...

medium to high confidence on thunder timing. Medium confidence on
cigs overnight. High confidence remaining elements.

Preliminary point temps pops
Athens 66 71 50 69 60 90 50 10
atlanta 68 71 51 66 80 90 30 5
blairsville 61 67 44 60 70 90 40 10
cartersville 67 71 48 64 90 90 30 5
columbus 71 75 54 70 80 90 30 5
gainesville 66 69 51 65 70 90 50 10
macon 70 75 51 71 50 90 50 5
rome 67 71 48 64 90 90 20 10
peachtree city 68 73 49 67 80 90 30 5
vidalia 72 79 57 74 40 90 80 5

Ffc watches warnings advisories
None.

Short term... Nlistemaa
long term... .Bdl
aviation... Nlistemaa


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbus, Columbus Metropolitan Airport, GA3 mi59 minESE 710.00 miFair81°F64°F58%1017.5 hPa
Fort Benning, GA14 mi54 minE 510.00 miFair80°F67°F66%1017.6 hPa

Wind History from CSG (wind in knots)
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Last 24hrE10E9E8E6E6E5E5E6E7E7E7E8E8E6E8E9SE11SE9SE9SE10SE9SE11SE7SE7
1 day agoNE5NE4CalmCalmCalmCalmE5SE7E3CalmCalmCalmE6E7E7SE6E7E9E8E7SE7SE9SE10E8
2 days agoNE5NE4NE3CalmE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3E94E4--3E8E7E7

Tide / Current Tables for
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Tide / Current Tables for
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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 Peachtree City, GA (18,4,5,8)
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Ground Weather Radar Station Atlanta, GA
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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.