Tuesday, August22, 2017 L-36.com


Marine Weather and Tides
Marietta, 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 7:04AMSunset 8:17PM Tuesday August 22, 2017 8:48 PM EDT (00:48 UTC) Moonrise 6:53AMMoonset 8:04PM Illumination 1% Phase: New Moon; Moon at 1 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 Marietta, GA
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location: 34, -84.47     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 222349
afdffc
area forecast discussion
national weather service peachtree city ga
749 pm edt Tue aug 22 2017

Prev discussion issued 319 pm edt Tue aug 22 2017
short term tonight through Wednesday night ...

this afternoon is pretty much panning out as forecast with the
highest pops along and south of a columbus to macon line where
precipitable water values have been in excess of 2 inches this
afternoon. Numerous storms have developed in this environment with
isolated strong storms which seem to be over achieving in the warm
mid level environment. There is a sharp cutoff between this
activity and what is going on across atlanta and points northward
which is basically isolated showers at most. Expect this
configuration to remain through the remainder of the evening with
alabama activity looking to remain west of the area and tennessee
valley activity remaining north initially.

Frontal boundary or at least the pre frontal environment will make
its way into NW ga by 06z tonight with enhanced mid level
moisture. However, CAPE values will remain very low and thinking
only isolated to low end chance pops warranted at this time. Will
include tsra as well but shra may end up being the favored wx type
initially.

For wed, front will sink south through the area with moisture
ahead of it pooling to result in pws around 2 inches for most
areas. Subtle shortwave energy along with CAPE values increasing
to around 2000 j kg should be all that is required to produce high
end chance to low end likely pops. There will be a zone of slight
cooling aloft allowing for slightly steeper lapse rates and the
potential for some stronger activity during the afternoon hours.

Right now, have the best pops across the northern sections but
could easily see a scenario where highest pops would be carried
south of this point given greater afternoon heating potential.

Will let later shifts monitor for possible displacement of this
highest pops axis southward.

Deese
long term Thursday through Tuesday ...

only tweaks to the long term based on the latest guidance.

Bdl
previous discussion...

the long term beings with the cold front continuing to move out of
the CWA taking most of the moisture with it. There remains
residual moisture across parts of central georgia and have left
chance pops across central georgia through Friday. North georgia
should be dry for the rest of the week. All models begin spreading
moisture back across the CWA this weekend and into early next week
although they differ on the moisture depth. Will bring chance pops
to all of the CWA beginning Saturday and continuing through the
rest of the long term.

17

Aviation
00z update...

showers continue to dissipate across the area this evening. Should
have clearing skies through the night tonight. A front will
approach the state overnight and gradually sink south through the
day on Wednesday. This should lead to the development of a cu
field between 030-040 in the morning... Before lifting to between
040-050 through the afternoon. Scattered showers and thunderstorms
will develop by early afternoon... With a prob30 covering this for
most sites. West winds will continue but should become more NW by
Wednesday afternoon at 10kts or less.

Atl confidence... 00z update...

medium on tsra Wed afternoon
high on all other elements.

Kovacik

Preliminary point temps pops
Athens 72 91 70 87 20 60 30 20
atlanta 74 90 71 88 20 60 30 20
blairsville 67 83 61 84 20 60 20 10
cartersville 72 89 66 86 20 60 30 10
columbus 75 93 74 92 30 50 40 40
gainesville 73 89 69 86 20 60 30 10
macon 74 92 73 91 30 50 40 50
rome 72 89 65 87 20 60 30 10
peachtree city 73 91 70 88 30 50 30 20
vidalia 74 94 75 92 40 40 40 60

Ffc watches warnings advisories
None.

Short term... Kovacik
long term... .Nlistemaa
aviation... Kovacik


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marietta / Dobbins Air Force Base, GA6 mi53 minSW 610.00 miA Few Clouds86°F69°F57%1015.2 hPa
Cobb County International Airport - McCollum Field, GA7 mi58 minSW 710.00 miFair87°F70°F57%1016.3 hPa
Atlanta, De Kalb-Peachtree Airport, GA12 mi56 minWSW 710.00 miFair87°F66°F51%1013.9 hPa
Fulton County Airport-Brown Field, GA15 mi56 minWSW 510.00 miFair88°F71°F57%1014.7 hPa
Cartersville Airport, GA22 mi56 minSSW 310.00 miFair85°F73°F68%1014.4 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA24 mi57 minWSW 710.00 miA Few Clouds87°F68°F53%1015 hPa

Wind History from MGE (wind in knots)
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Last 24hrSE2E2CalmCalmSE5S4CalmCalmCalmCalmCalmCalmCalmW3SW4SW5W7S4CalmSW5SW6S8SW8SW6
1 day agoSE4CalmCalmCalmCalmCalmCalmE3CalmCalmNE2NE3NE2NE1NE5NE5E7E9E8SE7SE8SE8SE7S4
2 days agoCalmCalmW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW1S3SW4N1SE2NW3E5CalmE3E6

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
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Peachtree City, GA (20,4,5,8)
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Ground Weather Radar Station Atlanta, GA
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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.