Friday, July19, 2019 L-36.com


Marine Weather and Tides
Acworth, GA

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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 6:39AMSunset 8:50PM Friday July 19, 2019 6:31 AM EDT (10:31 UTC) Moonrise 9:52PMMoonset 8:02AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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 Acworth, GA
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location: 34.1, -84.62     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 190720
afdffc
area forecast discussion
national weather service peachtree city ga
320 am edt Fri jul 19 2019

Short term today through Saturday
500mb analysis shows a broad trough across the SE us. This trough
should stay in place today, while high pressure tries to build
eastward. However, a weakness between the ridge to the west and the
atlantic ridge to the east will remain in place across the cwfa into
Saturday. Plenty of shortwave energy in place along the trough shear
axis. At the surface, a weak surface trough will continue to bi-sect
the cwfa through the short term portion of the forecast.

As in previous days, moisture remains abundant with pwats 2"+. Bl
winds will continue to average less than 10-15kt, so the potential
for locally heavy rainfall will continue. Along with abundant
moisture, there will be plenty of potential energy both today and
tomorrow. All of this will combine with the mid mid level shear
axis trough to increase the potential for scattered to numerous
showers and thunderstorms each day. Do think the model lapse rates
are a bit underdone. Strong thunderstorms during the afternoon and
early evening are possible. Isolated severe thunderstorms cannot be
ruled out. Gusty winds, frequent lightning strikes and heavy
rainfall will be the primary hazards from storms.

With the increased cloud cover and higher end chance low end likely
pops, heat indices should remain below criteria at this time.

Nlistemaa

Long term Saturday night through Thursday
Main concerns in long term period are chances for diurnal convection
and likelihood that front will actually push through CWA middle of
next week.

Pattern at start of period still dominated by large, e-w oriented
upper ridge centered along 35 deg N latitude, extending across
entire CONUS and into western atlantic. Underneath this ridge, there
is an easterly wave moving very little over the middle gulf coast
and lower ms valley states. Medium range model guidance keeping most
of the deep moisture with this easterly wave and weakness in the
upper ridge over al ms Sun and mon. Meanwhile, models also
indicating shortwave over upper midwest Sun digging SE into the oh
valley by late Mon and carving out a nice upper trough over the
eastern CONUS by 00z Wed then slowly fill the trough thru the rest
of the week. Some disagreement seen in guidance on exactly how deep
this trough becomes and how far any drier air could push into the
state behind front. 00z GFS more aggressive while 00z ec keeps front
a bit weaker and keeps it stationary further north over middle ga.

00z cmc in between the two but closer to the ec. Model blend pops
look good.

Convective ingredients do not appear to be excessive during the long
term period. Will be a touch more vertical wind shear starting early
next week as 20-30kt h5 flow from upper trough moves in. With
coverage of afternoon evening convection increasing this weekend
with the increased moisture pooling ahead of front, temps will be a
bit cooler than recently.

Snelson

Aviation
06z update...

the only major change to the tafs for this cycle was to narrow
down the prob group to the 4 hours where precip is most likely and
can be easily be transitioned to a tempo. High clouds will hang
around overnight with CU between 035-040 during the afternoon
tomorrow. Winds will remain on the west side through the period.

Atl confidence... 06z update...

med confidence on convective timing. Otherwise, high confidence
remaining elements.

Nlistemaa

Preliminary point temps pops
Athens 93 73 93 73 40 20 40 30
atlanta 90 74 90 74 50 30 50 30
blairsville 86 68 86 67 40 20 50 30
cartersville 90 72 90 72 40 30 50 30
columbus 93 74 91 74 60 60 60 30
gainesville 89 73 89 73 40 20 40 30
macon 94 73 94 74 60 60 40 20
rome 92 73 91 72 40 30 60 30
peachtree city 91 72 90 72 50 30 50 30
vidalia 95 74 95 75 60 50 30 20

Ffc watches warnings advisories
None.

Short term... Nlistemaa
long term... .Snelson
aviation... Nlistemaa


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cobb County International Airport - McCollum Field, GA6 mi41 minW 310.00 miFair76°F73°F94%990.1 hPa
Cartersville Airport, GA12 mi38 minN 07.00 miA Few Clouds73°F72°F96%1016.5 hPa
Marietta / Dobbins Air Force Base, GA13 mi35 minSW 310.00 miMostly Cloudy76°F73°F92%1017 hPa
Dallas Paulding County Regional Airport, GA22 mi36 minW 37.00 miFair73°F73°F100%1018.3 hPa
Fulton County Airport-Brown Field, GA23 mi38 minSW 310.00 miFair76°F73°F91%1016.6 hPa
Atlanta, De Kalb-Peachtree Airport, GA23 mi38 minWSW 310.00 miFair75°F73°F96%1016.2 hPa

Wind History from RYY (wind in knots)
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Last 24hrCalmS4W7W8W8W9
G15
W6W7W10W9N3SW6W5CalmS3SW3CalmSW5W3S3CalmS3CalmW3
1 day agoSW5SW5SW5W10
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5W7SW5SW4SW3W6SW6SW5SW3CalmCalmCalmW5SW5W4SW3
2 days agoCalmCalmS4W8SW8SW8W11SW10SW12
G18
S6SW8SW8SW76CalmSW3CalmSW3CalmCalm3W3CalmCalm

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 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Peachtree City, GA (6,6,7,8)
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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.