Friday, August23, 2019

Marine Weather and Tides
Marietta, GA

Version 3.4
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at Allen

Sunrise 7:04AMSunset 8:17PM Friday August 23, 2019 8:19 PM EDT (00:19 UTC) Moonrise 12:00AMMoonset 1:21PM Illumination 40% 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 Marietta, GA
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location: 34, -84.47     debug

Area Discussion for - Peachtree City, GA
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Fxus62 kffc 240008 aaa
area forecast discussion... Updated
national weather service peachtree city ga
800 pm edt Fri aug 23 2019

00z aviation forecast discussion...

Short term tonight through Saturday night
Weak frontal boundary continues to sag south across far northern ga
this afternoon. The front will move slowly southward overnight, and
should stall across central portions of the cwfa overnight or into
tomorrow. In the mid levels, mostly zonal flow will allow several
pieces of shortwave energy to move quickly east within the flow,
interacting with the stalled boundary.

Scattered to numerous showers and thunderstorms are anticipated for
the next two days. Widespread severe weather is not anticipated, but
a few stronger storms or an isolated severe storm will be possible.

Gusty winds and frequent lightning will be possible with the
stronger storms. In addition, pwats of 2"+ with bl winds of less than
15kt will allow for slow moving heavy rainers.


Long term Sunday through Friday
To start the new week, a potential tropical low pressure system,
currently invest 98l with a 70% chance of development over the next
48 hours, will be making its way northward off the southeastern
atlantic coastline. At the same time, a strong surface high
pressure will be over maine new brunswick and moving eastward. The
high to the nne and the low to the ese will form a pressure
gradient with northeasterly winds against the lee side of the
appalachian mnts, causing cold air damming and forcing a wedge
front to push through most of the forecast area and replace the
prepositioned stationary front. This will be our best chance of
breaking our current streak of 28 days of temperatures at or above
70 for atlanta, barring any strong outflows later today. This is
the 13th longest streak of its kind on record going back to 1978.

With the continuing fetch of warm moist air moving overhead from the
gulf. Pwats around and over 2" are expected through the beginning of
next week. Combined with the extra forcing from the frontal boundary
should create likely rain chances with scattered convective
showers and thunderstorms until the front begins to lift on

Afterwards, a mid-level trough will sweep across the southeastern
conus, returning the forecast area to conditions we've known and
'loved' over the past several weeks. The southwesterly mid-level
flow will continue to bring gulf moisture into the region,
continuing at least scattered showers and thunderstorms through at
least Wednesday. High pressure is then expected to follow by
Thursday and Friday with at least slight chances for showers and
thunderstorms. It's currently unclear exactly how much drier air
will filter into the forecast area with this next weather pattern
as things diverge within the model guidance, however, as the time
frame gets closer and other synoptic features come and go we
should get a better feel if a break from the rains can be


00z update...

best convective coverage continues to shift into the eastern and
southern portions of the forecast area. Expecting mainly isolated
convection over the area otherwise through the overnight period
before coverage increases once again by late morning through
tomorrow evening. MainlyVFR conditions expected outside of areas of
convection. Local to scattered areas of MVFR or lower visibilities
are likely 06z-14z, however, kahn and kmcn are the only TAF sites
where impacts are expected at this time. Will see MVFR ceilings
developing and spreading across the area from the east after 00z
tomorrow evening. Winds will be light southwest to northwest,
becoming northeast to east 4-8kt after 12-15z.

Atl confidence... 00z update...

medium to high confidence all elements.


Preliminary point temps pops
Athens 72 87 68 79 60 70 60 50
atlanta 75 89 71 81 60 70 60 60
blairsville 66 81 64 74 50 70 60 50
cartersville 71 89 70 83 60 70 50 60
columbus 75 90 74 87 60 60 60 80
gainesville 72 85 67 79 60 70 60 50
macon 74 91 72 85 50 60 60 70
rome 71 89 70 84 50 70 50 70
peachtree city 73 90 71 83 60 70 60 70
vidalia 74 92 74 89 30 60 50 60

Ffc watches warnings advisories

Short term... Nlistemaa
long term... .Thiem
aviation... Nlistemaa

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marietta / Dobbins Air Force Base, GA6 mi83 minNNW 410.00 miMostly Cloudy87°F69°F56%1014.5 hPa
Cobb County International Airport - McCollum Field, GA7 mi29 minNW 310.00 miMostly Cloudy83°F73°F74%988.5 hPa
Atlanta, De Kalb-Peachtree Airport, GA12 mi26 minE 310.00 miFair81°F73°F79%1014.1 hPa
Fulton County Airport-Brown Field, GA15 mi26 minN 010.00 miFair83°F75°F77%1014.5 hPa
Cartersville Airport, GA22 mi26 minN 010.00 miFair82°F73°F77%1014.7 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA24 mi27 minNW 610.00 miMostly Cloudy83°F71°F67%1014.9 hPa

Link to 5 minute data for KMGE

Wind History from MGE (wind in knots)
Last 24hrCalmCalm------SW4SW4----CalmSW2Calm--NW4CalmSW3NW6NW6NW9W11W4NW3NW4N4
1 day agoSW4SW4--------SW5S5----NW2--NW6W10W6S4NW4SE4SE3S6SW6SW10SW7S4
2 days agoS6SW9--------SW5--CalmCalmSW1------W8W7SW7W7S4W7S3SW4SW6SW3

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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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Peachtree City, GA (20,4,5,8)
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Ground Weather Radar Station Atlanta, GA
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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 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 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.