Tuesday, October15, 2019 L-36.com

Marine Weather and Tides
Marietta, GA

Version 3.4
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.
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 L-36.com. Allen

Sunrise 7:41AMSunset 7:05PM Tuesday October 15, 2019 8:00 AM EDT (12:00 UTC) Moonrise 7:27PMMoonset 8:10AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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 151141
area forecast discussion
national weather service peachtree city ga
741 am edt Tue oct 15 2019

12z aviation forecast discussion...

Prev discussion issued 348 am edt Tue oct 15 2019
short term today through Wednesday ...

a more active forecast is on tap in the short term as much-needed
rainfall will be on the increase today into tonight, especially for
central georgia. Showers are already increasing this morning across
south-central georgia in the vicinity of the lingering stationary
boundary as midlevel energy progresses eastward. This surface
boundary will be the continued focus for the axis of most
significant rainfall today and tonight as shortwave energy
transitions through the southeast.

The surface front will make only limited progress northward today
and remain relegated somewhere near or just south of the southern
border of the cwa. Based on this limited northward progress, better
instability will thus remain largely south of the area as reflected
by the placement of the day 1 marginal severe risk area issued by
the storm prediction center. With that being said, with the front in
the vicinity, a strong thunderstorm or two with gusty winds cannot
be entirely ruled out in the far southern fringes of the forecast
area this afternoon and evening, particularly if the front makes
slightly more northward progress. Beneficial rainfall totals are
forecast today into tonight in central georgia with an axis of 1-2+"
rainfall totals expected, especially along and south of a lagrange
to forsyth to louisville line. Totals will gradually taper to the
north, with areas along and north of the i-20 corridor likely to see
lesser sub-1" totals through Wednesday.

By tomorrow morning, a strong cold front will be quickly approaching
the state from the northwest and sweep into the area through the
day. Precipitation will then rapidly come to an end from northwest
to southeast through the day with clearing skies in north georgia by
Wednesday evening. Breezy northwest winds will then begin to usher
in much cooler temperatures heading into Wednesday night.

long term Wednesday night through Monday ...

the long term portion will begin with a front sweeping through and
high pressure building in Wed night bringing some of the coldest
temps so far for this young fall season. By Thu morning, we will
see some upper 30s across the NE mountains and widespread lower to
mid 40s all the way into central sections of the forecast are.

Latest guidance continues the cooler temperatures on thu
afternoon as well with highs likely not getting out of the 60s for
the atlanta metro. Pretty much a carbon copy for the Thu night
with upper 30s into the 40s expected once again.

Next system will take shape for the weekend into early next week
with closed upper low moving through the central plains. This will
allow for a broad fetch of SW flow aloft for the local area and
increasing deep layer moisture. Although rain chances will begin
as early as sat, the best chances now appear for Sunday and then
again on Tuesday of next week. Should models verify, pops will be
in the likely to categorical range but this far out, will limit
to just high end chance for now.


12z update...

cigs at 030-050 presently are expected to continue to trend to
MVFR through 14-15z at csg mcn and by 16-18z at atl sites.

Cigs vsbys will deteriorate to ifr 18-20z and persist into the
overnight hours with areas of lifr increasing after 04-06z.

Widespread shra at csg mcn will continue to spread north toward
atl ahn sites through 18z and into the evening. Tsra potential
will primarily be at csg and perhaps mcn this afternoon. E to se
winds at 3-7 kts will become west at atl sites by 10-12z weds with
speeds increasing towards 10kts thereafter.

Atl confidence... 12z update...

medium confidence.


Preliminary point temps pops
Athens 69 59 76 44 70 80 50 0
atlanta 68 62 72 46 80 80 40 0
blairsville 69 55 63 38 60 70 60 0
cartersville 71 60 71 43 70 60 50 0
columbus 72 65 78 48 100 90 50 0
gainesville 68 59 71 44 70 70 40 0
macon 70 63 79 46 100 90 50 0
rome 72 60 71 42 70 60 40 0
peachtree city 68 61 74 44 90 80 40 0
vidalia 72 66 81 50 100 90 70 0

Ffc watches warnings advisories

Short term... Rw
long term... .Deese
aviation... Rw

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marietta / Dobbins Air Force Base, GA6 mi65 minN 210.00 miOvercast63°F58°F86%1018.8 hPa
Cobb County International Airport - McCollum Field, GA7 mi71 minN 010.00 miOvercast64°F57°F78%991.7 hPa
Atlanta, De Kalb-Peachtree Airport, GA12 mi68 minN 010.00 miOvercast62°F60°F93%1018.5 hPa
Fulton County Airport-Brown Field, GA15 mi68 minN 010.00 miOvercast63°F61°F93%1018.6 hPa
Cartersville Airport, GA22 mi68 minN 010.00 miOvercast65°F57°F78%1018.3 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA24 mi69 minE 610.00 miLight Rain66°F57°F73%1018.6 hPa

Link to 5 minute data for KMGE

Wind History from MGE (wind in knots)
Last 24hrW5W3NW4N3W5W5NW4W3W5W5W4S3W1CalmW2S1CalmCalmCalmCalmCalmNE3CalmN2
1 day agoW6NW6NW2NW4CalmW1W3CalmS3S3W3CalmS7S3SW4W4W5W4NW3CalmCalmW4W5W4
2 days agoCalmCalmW3W7NW3SW3NW9NW9NW9NW7NW7W7NW6NW5N4NW5NW4NW3CalmCalmCalmCalmW4W2

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 (8,2,3,4)
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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 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.