Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Atlanta, GA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:30AMSunset 7:55PM Sunday March 26, 2017 1:27 AM EDT (05:27 UTC) Moonrise 5:44AMMoonset 5:34PM Illumination 2% Phase: Waning Crescent; Moon at 28 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 Atlanta, GA
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location: 33.76, -84.42     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 260127
afdffc
area forecast discussion
national weather service peachtree city ga
927 pm edt Sat mar 25 2017

Update
Have increased pops southward toward columbus as an area of
showers and a few tstorms has developed just to the west. Have
also increase pops across north ga to categorical as the rain
area continues to move slowly eastward and all hi-res models show
this area moving into west and north ga later this evening and
tonight.

Have also increased overnight lows as temps with the cloud shield
and continue southeast winds have not allowed temps to fall as
fast as previously forecast.

No other changes planned.

Prev discussion /issued 313 pm edt Sat mar 25 2017/
short term /tonight through Sunday night/...

cold front is currently poised to cross the mississippi river this
afternoon. A line of showers and thunderstorms has developed out
ahead of the frontal boundary,and is now making it across central
al. The front and line of convection will continue to trudge
eastward for the remainder of the afternoon into the overnight
hours.

The line of convection should begin to approach the far nw/w cwfa
between 22z and 00z - well outrunning the front. Models are not
progging a whole lot of surface instability or shear with this
system and the lapse rates are weak. A few thunderstorms are
possible tonight, but severe weather is not anticipated.

The main mid level energy with this system gets shunted well to the
north overnight and Sunday. However, there is some energy associated
with a shortwave trough that comes through during peak heating
tomorrow. Frontal convergence is weak, but there will be enough
surface instability for another round of thunderstorms. Again,
severe weather is not anticipated, but a few storms could become
strong.

Nlistemaa
long term /Monday through Saturday/...

an active weather pattern appears in store for the southeast region
beginning early next week, as an open (upper level) wave crosses the
area Monday night into Tuesday. The system is expected to weaken as
it tracks east into a shortwave ridge off the carolina coast so
severe threat remains very low at this time. Best chance to see any
organized storms will be across north georgia where best forcing
along a sfc front, along with marginal low level wind shear and
instability will exist.

Upper ridge will build across the region mid week
(Wednesday/Thursday) ahead of next system that is expected to be
rather strong as it moves away from the four corners/desert SW into
the southern plains. Remnant "cold front" / boundary may be draped
somewhere across south georgia and will likely move north as a warm
front Thursday. At this is occurring, high pressure building east of
the appalachians could result in a "wedge" front situation
developing Thursday across north and east-central georgia where
cooler/wetter weather will exist. Models diverge on approaching
(southern plains) system Thursday/Friday as the 12z GFS being the
outlier -- taking the system farther south than the ec and
gem/canadian models. This "positioning" discrepancy will have a
large influence on the potential severity with this system. In any
case, it looks like the potential to see active weather across north
and central georgia is increasing late Thursday into Friday.

Djn.83

Aviation
00z update...

area of rain over al will slowly spread across the forecast area
tonight. There could be isolate tsra, but mainly in the csg area
for this evening.VFR skies currently, however as the
precipitation moves into the forecast area, CIGS will become MVFR
most areas. CIGS will becomeVFR by 18z Sunday. Precipitation will
diminish but there could still be scattered shra across the region
on Sunday. Winds will be southeast less than 10 kts tonight and
Sunday morning, becoming south around 10 kts by 18z Sunday.

//atl confidence... 00z update...

medium on CIGS tonight.

High on remaining elements.

17

Preliminary point temps/pops
Athens 58 76 58 78 / 60 60 40 30
atlanta 60 75 60 77 / 70 50 20 30
blairsville 54 67 54 71 / 80 70 50 40
cartersville 59 74 57 76 / 80 60 20 30
columbus 60 79 60 81 / 70 40 10 30
gainesville 58 71 57 75 / 70 60 40 30
macon 59 80 59 82 / 40 50 20 20
rome 58 74 57 76 / 80 70 20 40
peachtree city 58 76 57 78 / 60 50 20 30
vidalia 57 80 60 83 / 10 50 20 20

Ffc watches/warnings/advisories
None.

Short term... 17
long term... .Bdl
aviation... 17


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Atlanta, Fulton County Airport-Brown Field, GA5 mi34 minSSW 57.00 miLight Rain61°F55°F84%1019.5 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA7 mi35 minWSW 75.00 miLight Rain Fog/Mist62°F55°F80%1019.7 hPa
Atlanta, De Kalb-Peachtree Airport, GA10 mi34 minSE 12 G 2010.00 miOvercast66°F51°F59%1018.2 hPa
Marietta / Dobbins Air Force Base, GA13 mi29 minSW 65.00 miLight Rain63°F55°F77%1019.4 hPa
Marietta, Cobb County-McCollum Field Airport, GA20 mi2.6 hrsSE 610.00 miMostly Cloudy66°F48°F52%1018.6 hPa

Wind History from FTY (wind in knots)
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Last 24hrSE13
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SE10S4SE4CalmCalmNE3SE8S11
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1 day agoE5SE55E5SE7SE8E5SE8E7SE7SE8S10SE103
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2 days agoCalmE3E9E8E7NE8E14
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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 (1,6,7,8)
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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.