Monday, May29, 2017 L-36.com


Marine Weather and Tides
Atlanta, GA

Version 3.4
What's New / NOTES
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 6:27AMSunset 8:43PM Monday May 29, 2017 5:05 PM EDT (21:05 UTC) Moonrise 9:32AMMoonset 11:38PM Illumination 19% Phase: Waxing Crescent; Moon at 4 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 291934
afdffc
area forecast discussion
national weather service peachtree city ga
334 pm edt Mon may 29 2017

Short term tonight through Tuesday night
A severe thunderstorm watch is in effect for portions of north
and central georgia until 9 pm edt...

as expected, with ample instability in place, thunderstorms are
quickly developing, primarily in association with an impulse moving
from eastern alabama into western georgia. Thunderstorm coverage
will continue to increase, especially ahead of this disturbance as
it traverses the CWA through this evening. SBCAPE values have
already reached in excess of 2000-2500 j kg which will contribute to
thunderstorm intensification and the increasing possibility of some
severe thunderstorms. Damaging wind gusts will be the primary threat
in the strongest storms with steep low level lapse rates and
plentiful moisture. While some hail is possible, less impressive mid-
level lapse rates will tend to reduce the large hail threat a bit.

Coverage of showers and thunderstorms will gradually diminish
overnight after sunset as daytime heating is lost and the
aforementioned impulse moves eastward.

The cold stationary front currently residing to our northwest will
continue to slowly sag into to our area on Tuesday. The proximity of
this boundary as well as continuing southwest flow aloft will
contribute to additional scattered showers and thunderstorms on
Tuesday afternoon. Deep layer shear will not be a factor tomorrow as
it is today, so while showers and thunderstorms can again be
expected on Tuesday, threat for strong severe thunderstorms will be
low.

Rw

Long term Wednesday through Monday
Models are coming into better agreement for the late week system.

Confidence is increasing on showers tstorms and have therefore
increased probabilities. No other major changes planned. Previous
long term discussion follows...

17
previous long term Tuesday night through Sunday ...

the long term remains unsettled with basically a west or
southwest flow aloft across the southern states... And low pressure
continuing across the great lakes. A moist air mass is expected
to persist and a series of short waves will cross the area through
the period. Breaks in the precipitation will be hard to time. So
the overall pattern remains similar with chance or slight chance
pops each period. Gfs ECMWF hint at a surface front pushing into
ga Wednesday night into Thursday with somewhat drier air but not
confident enough on this to make any big pop changes.

41

Aviation
18z update... Scattered thunderstorms will be in proximity to taf
sites through this evening with locally gusty winds and MVFR
ceilings ifr vsbys in and near thunderstorms. Outside of
thunderstorms primarilyVFR conditions can be anticipated this
evening. MVFR ceilings are possible by Tuesday morning. Scattered
showers and thunderstorms are again expected by Tuesday afternoon.

Winds will be westerly through the period.

Confidence... Medium confidence on ceilings Tuesday morning.

High confidence other elements.

Rw

Preliminary point temps pops
Athens 66 81 64 85 60 40 20 20
atlanta 67 79 65 83 60 40 20 20
blairsville 60 78 58 78 60 30 20 30
cartersville 65 80 62 83 60 40 20 20
columbus 70 84 67 86 30 40 20 20
gainesville 65 79 64 82 60 40 20 20
macon 68 85 66 86 30 40 20 20
rome 65 82 61 84 60 40 20 30
peachtree city 66 80 63 83 50 40 20 20
vidalia 72 89 70 89 20 30 20 20

Ffc watches warnings advisories
Severe thunderstorm watch until 9 pm edt this evening for the
following zones: baldwin... Banks... Barrow... Bartow... Bibb...

bleckley... Butts... Chattahoochee... Cherokee... Clarke... Clayton...

cobb... Coweta... Crawford... Dekalb... Douglas... Fayette...

forsyth... Glascock... Greene... Gwinnett... Hall... Hancock...

harris... Henry... Houston... Jackson... Jasper... Jefferson...

johnson... Jones... Lamar... Macon... Madison... Marion...

meriwether... Monroe... Morgan... Muscogee... Newton... North
fulton... Oconee... Oglethorpe... Paulding... Peach... Pike...

putnam... Rockdale... Schley... South fulton... Spalding... Stewart...

talbot... Taliaferro... Taylor... Twiggs... Upson... Walton...

warren... Washington... Webster... Wilkes... Wilkinson.

Short term... Rw
long term... .17
aviation... Rw


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Atlanta, Fulton County Airport-Brown Field, GA5 mi72 minSSE 93.00 miThunderstorm Rain Fog/Mist71°F71°F100%1016.5 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA7 mi73 minWNW 107.00 miThunderstorm Light Rain71°F68°F90%1016.6 hPa
Atlanta, De Kalb-Peachtree Airport, GA10 mi72 minSSW 710.00 miThunderstorm Rain73°F70°F90%1016.4 hPa
Marietta / Dobbins Air Force Base, GA13 mi67 minSSE 87.00 miThunderstorm Light Rain78°F67°F72%1016.1 hPa
Marietta, Cobb County-McCollum Field Airport, GA20 mi75 minN 64.00 miRain Fog/Mist77°F66°F69%1017.6 hPa

Wind History from FTY (wind in knots)
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Last 24hrSW7W7W6W3CalmSW3SW4W3SW5SW4S3CalmW4CalmCalm3CalmW6W9SW4W6NW7SE9Calm
1 day agoSW9SW9SW6S5SW3CalmCalmSW3N8S4S3Calm4W6S5SW6SW7SW9SW7SW9S10
G18
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2 days agoSW8S8
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SW8S5SW4CalmCalmCalmCalmCalmCalmS3SW3SW3SW4SW7SW5SW65SW6SW86SW8
G15
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G19

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 (17,4,5,8)
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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.