Friday, July28, 2017

Marine Weather and Tides
Cartersville, GA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 6:46AMSunset 8:44PM Friday July 28, 2017 9:08 AM EDT (13:08 UTC) Moonrise 11:13AMMoonset 11:19PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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 Cartersville, GA
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location: 34.2, -84.78     debug

Area Discussion for - Peachtree City, GA
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Fxus62 kffc 281134
area forecast discussion
national weather service peachtree city ga
734 am edt Fri jul 28 2017

Prev discussion issued 325 am edt Fri jul 28 2017
short term today through Saturday ...

early morning radar imagery reveals just a few nuisance showers
between atl and mcn metros. Have not seen any lightning with this
activity the last few hours. Farther upstream... A larger complex of
showers and thunderstorms... Associated with a weak 500mb vort max
was located across south central tn and northwest al moving
southeast. This activity will begin to push into NW ga in the next
few hours as the shortwave maintains its intensity. Could also see
some patchy areas of fog towards sunrise as dewpoint depressions
near zero.

Aforementioned vort MAX will be the main source of shower and
convective development this morning and into the afternoon. Deepest
moisture will reside across north georgia so highest coverage
will generally be in this area. Model analysis of the synoptic
pattern reveals a robust shortwave across the great lakes... And
progged to move southeast towards DELMARVA through 00z Sunday.

Southward movement of this disturbance will allow a sfc wave
initially along a cold front draped across the oh valley to
become more organized as it begins to move eastward through WV and
eventually va and off the atlantic coast. This movement will
allow the cold front to push through the CWA over the next 36
hours... A rather uncommon treat this time of year.

Although the aforementioned shortwave will initially produce
showers and storms over the area... Focus will begin to shift
towards the front this afternoon and evening. With all this in
mind... Southward building of mid upper level cyclonic flow... Along
with strengthening lower level westerly winds associated with the
sfc low to the north will easily allow for deeper layer shear to
approach the lower-mid 20s (kts). This combined with plentiful
moisture and instability should allow for the development of a
healthy mix of both loosely organized line segments and pulse
thunderstorms. Could see some severe activity with the primary
threat of very heavy rainfall and damaging winds downbursts. Would
not be surprised to see SPC upgrade the area back to marginal or
even slight risk.

Activity could persist into Friday night with an overall weakening
trend. Front should be just south of atl-ahn metro areas by 12z
Saturday. Some absolutely beautiful weather is store behind this
front (for july) as drier air moves into north georgia.

Unfortunately central ga will still see one more day of mainly
diurnally driven storms along the front perhaps a few strong .

Mixing ratios behind the front are around 10g kg with pws under 1
inch-this is exciting!
long term Saturday night through Thursday ...

models continue in good agreement through the long term. The cold
front and associated short wave will continue to exit Saturday night
pushing the rest of the precip out of the cwa. It should dry over
the CWA Sunday through Tuesday as canadian high pressure builds over
the ohio valley. Then as the next short wave drops into the mid
mississippi valley, the eastern trough broadens and the moisture
patterns become messy so have gone with climo for pops. Temps will
be at or just below normal through the long term.


12z update...

some patchy areas of fog have developed this morning. Expect this
to continue for perhaps the next hour or so. An area of showers
and probably some thunder will move into northern TAF sites later
this morning. From then on convection will also be possible
through the evening... Though coverage is becoming more uncertain.

MVFR ifr CIGS should develop after midnight or so Friday night as
a cold front moves through. Could again see some patchy fog by
daybreak Saturday. Convection on Saturday should be confined to
csg and mcn. West winds will become more northwest behind the cold
front Saturday morning and begin to gust between 15-20kts.

Atl confidence... 12z update...

medium on convective coverage this afternoon.

High on all other elements.


Preliminary point temps pops
Athens 89 72 88 67 60 50 20 5
atlanta 87 72 86 68 70 50 20 0
blairsville 79 66 81 59 70 50 20 5
cartersville 84 71 85 65 70 50 20 0
columbus 93 75 89 70 50 50 40 5
gainesville 83 71 85 66 70 50 20 0
macon 92 74 90 69 50 50 40 5
rome 84 71 86 65 70 50 10 0
peachtree city 87 72 87 67 60 50 20 0
vidalia 93 75 88 71 50 50 60 20

Ffc watches warnings advisories

Short term... Kovacik
long term... .17
aviation... Kovacik

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cartersville Airport, GA6 mi75 minN 04.00 miFog/Mist73°F73°F100%1011.9 hPa
Cobb County International Airport - McCollum Field, GA16 mi81 minN 010.00 miPartly Cloudy75°F73°F94%1013.9 hPa
Dallas Paulding County Regional Airport, GA21 mi73 minN 010.00 miFair79°F0°F%1014.2 hPa
Rome, R. B. Russell Airport, GA23 mi75 minN 07.00 miFair73°F73°F100%1011.7 hPa
Marietta / Dobbins Air Force Base, GA23 mi70 minSW 310.00 miMostly Cloudy74°F72°F93%1012.6 hPa

Wind History from VPC (wind in knots)
Last 24hrCalmS44S43Calm3S4E3S3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmSE44Calm3CalmSE343CalmCalmCalmSE4CalmCalmCalmCalmS4CalmCalmCalmCalmNE3
2 days agoCalmCalm3CalmN5Calm3Calm4Calm--SE3S8CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

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
IR Satellite Image from GEOS

GOES Local Image of Southeast    EDIT

Wind Forecast for Peachtree City, GA (9,2,3,4)
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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 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.