Saturday, January25, 2020
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Marine Weather and Tides
Marietta, GA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:38AMSunset 6:02PM Saturday January 25, 2020 4:12 PM EST (21:12 UTC) Moonrise 8:21AMMoonset 6:51PM 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 251949 AFDFFC

Area Forecast Discussion National Weather Service Peachtree City GA 249 PM EST Sat Jan 25 2020


SHORT TERM /Tonight through Sunday Night/. Wrap around clouds associated with the Great Lakes upper low continue to drift across north Ga Satellite showing some thinning. but patches of stratocu may linger into the late afternoon or early evening across the far north. The flow becomes more westerly overnight into early Sunday . but moisture returns rapidly into GA late Sunday afternoon ahead of the next system. A lower MS Valley upper trough and surface low tracking across the northern Gulf will spread showers back over the forecast area . with pops increasing into the overnight hours Sunday. At this time no winter precipitation is expected as temperatures should remain above freezing Also. the air mass remains too stable to mention thunder.

41

LONG TERM /Monday through Saturday/. No major changes made to the extended forecast. Cool/wet pattern still expected for the bulk of the long term period. Cutoff low over NW Mexico now progged for Thurs so forecast uncertainty expected to increase only very late in the period.

First round of rain Sun night/Mon with broad shortwave moving through in strong mean flow. Not a ton of lift but enough for light rain with up to 0.10 inch rainfall. Temps in far NE GA remain above 37F so no mention of rain/snow mix attm. Will need to monitor this in later forecasts.

NW flow for 36-48hrs before next more compact wave moves east along strong southern branch flow. There is some indication of an out-of-phase, fast moving wave in the northern branch that should be far enough ahead to set up cold air damming pattern favorable for light mixed precip in far northeast Wed morning. Have mention of rain/snow mix in higher elevations. QPF overall with this wave very low as low levels will be dry. Could just be sprinkles.

A relatively brief period of sunny weather expected Thurs before next wave from ejected cutoff low arrives. Timing and intensity quite a bit different between model guidance, but should be the strongest of the three with heavier rain. Still no evidence of any instability or a threat of severe storms with this system. Most likely timing is Friday. Again, some indication that temp in far northeast may be cold enough for some light mixed precip so continued with rain/snow mix in higher elevations for Fri morning.

SNELSON/01

01

AVIATION. 18Z Update . MVFR stratocu lingering this afternoon. Satellite showing some thinning but patches of clouds could hold on over the KATL taf sites until 22z. After that . a period of SCT035/040 then SKC across the area by 00z. Winds will remain northwest 10 to 15 kts and gradually diminish through 00z.

//ATL Confidence . 18Z Update . Medium to high on cig trends. High on all else.

41

PRELIMINARY POINT TEMPS/POPS. Athens 34 56 41 54 / 0 10 50 30 Atlanta 34 54 42 53 / 0 20 60 20 Blairsville 28 50 36 47 / 0 20 60 30 Cartersville 31 53 41 53 / 0 20 60 30 Columbus 36 59 44 58 / 0 20 60 20 Gainesville 33 53 41 52 / 0 10 60 30 Macon 36 59 44 58 / 0 10 50 20 Rome 31 53 41 53 / 0 30 60 20 Peachtree City 34 56 42 55 / 0 20 60 20 Vidalia 38 62 46 60 / 0 5 40 30

FFC WATCHES/WARNINGS/ADVISORIES. NONE.

SHORT TERM . 41 LONG TERM . 01 AVIATION . 41


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marietta / Dobbins Air Force Base, GA6 mi77 minW 12 G 1910.00 miOvercast43°F31°F63%1018.6 hPa
Cobb County International Airport - McCollum Field, GA7 mi83 minWNW 810.00 miOvercast43°F30°F60%990.7 hPa
Atlanta, De Kalb-Peachtree Airport, GA12 mi80 minWNW 910.00 miOvercast42°F30°F65%1019 hPa
Fulton County Airport-Brown Field, GA15 mi80 minNW 1210.00 miOvercast44°F30°F60%1018.7 hPa
Cartersville Airport, GA22 mi80 minVar 310.00 miOvercast47°F30°F54%1018.7 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA24 mi81 minWNW 1010.00 miMostly Cloudy44°F30°F60%1018.7 hPa

Link to 5 minute data for KMGE

Wind History from MGE (wind in knots)
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Last 24hrNW4N5NW1CalmS2W3W9W7W7W11W13
G22
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1 day agoE7E10E6E7E5
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2 days agoE7E1CalmE2E2E6E6E8E11E11
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G16
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS Local Image of Southeast    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Peachtree City, GA (16,3,4,5)
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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 numerous 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.