Monday, December18, 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 7:37AMSunset 5:33PM Monday December 18, 2017 4:11 AM EST (09:11 UTC) Moonrise 7:44AMMoonset 6:09PM Illumination 0% Phase: New Moon; Moon at 0 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 180834
afdffc
area forecast discussion
national weather service peachtree city ga
334 am est Mon dec 18 2017

Dense fog advisory through 9am...

Short term today through Tuesday
Ample moisture along with stalled front to the south has resulted
in dense fog formation across portions of the area. Quarter mile
visibility may not technically be widespread as of yet but given
increased travel concerns for this week, have pulled the trigger
on an advisory. Although the radar continues to be rather benign,
still some drizzle for most areas and will carry in initialized
grid set this morning.

Models appear to be a bit overdone thus far with the precip axis
to the south and mid level energy really isn't all that strong
over central ga for what the short term models are trying to
project rain wise. Still think there will be an uptick though in
precip this afternoon given abundant moisture and precipitable
water in excess of 1.75 inches. Will carry mid range chance
transitioning to small area of likely but no thunder inclusion at
this time.

Overall, rain chances will be on the decline through Monday night
as deep layer moisture decreases initially. Visibility
restrictions look to be limited to the extreme southern portions
of the area this go around. Next shortwave will approach late
Monday night however with likely pops entering NW zones once again
by the tail end of the short term period.

Deese

Long term Tuesday night through Sunday
Unsettled weather is still expected for much of the long term
period.

There is continued potential for heavy rainfall with a risk for
flash flooding across far N ga, from rmg to N gvl, Tuesday night
into Wednesday. Potential rainfall is running in the 1 to 3 inch
range with much of this rainfall coming late Tuesday night and
early Wednesday. This all due to deep moisture in the wsw flow aloft
interacting with surface low pressure and a slow moving warm front
moving over the area. Rainfall is expected to diminish end late
Wednesday and Wednesday night.

Another cold front will approach the area Friday and potentially
stall across the area Saturday into Sunday. The GFS and european
are significantly different with the GFS faster than the european
with the front, moisture and rain chances and how far the front
gets into the area. The european moves the front north as a warm
front Saturday night and Sunday while the GFS keeps the front
s of the area. These differences make the forecast low confidence.

Temperatures are expected to be above normal through the period.

Bdl

Aviation
06z update...

low clouds are on the rapid increase across the terminals with ifr
at most all of the atl sites. Visibility has been a different
story and slow to lower at the terminals but more so over NW ga.

Do expect both cig and vsby to continue to trend downward through
sunrise with conditions bottoming out in the life range. Certainly
possible for some vlifr as well but thinking this will be largely
outside of the atl terminal. Winds still expected to shift to the
west side by 16z with no changes to timing for this cycle.

Atl confidence... 06z update...

medium on lifr timing and vlifr potential.

High on remaining elements.

Deese

Preliminary point temps pops
Athens 63 45 67 55 20 0 20 80
atlanta 62 48 64 57 20 5 50 70
blairsville 59 38 63 51 5 0 20 100
cartersville 59 44 61 54 10 5 60 100
columbus 65 54 68 60 50 30 20 50
gainesville 61 46 63 55 10 0 30 100
macon 65 51 69 57 50 30 10 40
rome 59 42 60 53 5 5 70 100
peachtree city 64 47 65 56 20 5 40 70
vidalia 69 57 73 59 60 40 10 10

Ffc watches warnings advisories
Dense fog advisory until 9 am est this morning for the following
zones: bartow... Carroll... Catoosa... Chattahoochee... Chattooga...

cherokee... Clayton... Cobb... Coweta... Dade... Dekalb... Douglas...

fayette... Floyd... Gilmer... Gordon... Haralson... Harris... Heard...

marion... Meriwether... Murray... Muscogee... North fulton...

paulding... Pickens... Polk... South fulton... Stewart... Talbot...

troup... Walker... Webster... Whitfield.

Short term... Deese
long term... .Bdl
aviation... Deese


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marietta / Dobbins Air Force Base, GA6 mi15 minN 00.63 miFog/Mist46°F45°F97%1021.5 hPa
Cobb County International Airport - McCollum Field, GA7 mi23 minN 00.75 miFog/Mist45°F45°F100%993.7 hPa
Atlanta, De Kalb-Peachtree Airport, GA12 mi18 minN 01.50 miFog/Mist46°F45°F96%1022.1 hPa
Fulton County Airport-Brown Field, GA15 mi18 minN 00.50 miFog47°F46°F100%1021.5 hPa
Cartersville Airport, GA22 mi18 minN 05.00 miFog/Mist46°F46°F100%1021.5 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA24 mi19 minNE 40.50 miFog47°F46°F100%1021.6 hPa

Wind History from MGE (wind in knots)
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Last 24hrCalmCalmCalmCalmNW2NW3CalmE6SE5SE5CalmNE4E3E3NE4E4E3NE3E3CalmCalmCalmCalmCalm
1 day agoW6W6NW7W5W7W4W5W5N4W5NW3W3NW3CalmW1N1CalmCalmCalmCalmCalmCalmCalmCalm
2 days agoNW8NW6NW9NW5NW7NW8NW13W13
G19
W16
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NW10W11W10W11NW6W6W6W7W8NW7W6W6W6W5W5

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 (4,6,7,8)
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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.