Monday, December10, 2018 L-36.com


Marine Weather and Tides
Acworth, GA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:32AMSunset 5:31PM Monday December 10, 2018 3:12 AM EST (08:12 UTC) Moonrise 10:13AMMoonset 8:33PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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 100557
afdffc
area forecast discussion
national weather service peachtree city ga
100 am est Mon dec 10 2018

Update
Drizzle and light rain showers characterize the current weather
across a large portion of north georgia this evening with cloudy
skies elsewhere. Temperatures remain in the mid to upper 30s in
most locations with the exception of the higher elevations.

As the upper trough axis moves overhead through tomorrow morning,
expect weak lift to continue to increase light precipitation
across north georgia. Outside of the winter storm warning winter
weather advisory area, a shallow warm layer will maintain
primarily drizzle and light rain, though a brief rain snow mix
would be possible in any heavier bursts of precipitation. No
accumulations would occur as surface temperatures will remain
above freezing.

Within the winter storm warning and winter weather advisory
areas, light snow will be more likely, particularly at the higher
elevations where temperatures will hover around freezing. No
changes to forecast additional snowfall amounts are needed at this
time, and the warning and advisory will remain in place given
continued travel complications in these areas.

Rw

Prev discussion issued 653 pm est Sun dec 9 2018
prev discussion... Issued 212 pm est Sun dec 9 2018
short term tonight through Monday night ...

still some uncertainty with the next short wave that will move
across the CWA tonight and Monday morning. Precipitation is slowly
drying up across tennessee however all models are indicating
moisture will pool as the system moves across the cwa. Have kept
chance to likely pops across the northern part of the cwa
tonight early Monday. As for precipitation type, there is enough
cold air moving over the CWA that all precip will either be light
rain and or light snow with additional accumulations of 1 2 to 1
inch, except 1 to 2 inches above 3000 ft. With roads current wet or
slushy across northeast ga, additional snowfall and refreezing will
create hazardous roads. Will therefore maintain the current winter
weather advisory warning configuration plus add banks and hall
counties to the winter weather advisory. After this system moves
across the cwa, drier air spreads across the CWA Monday night ending
all precipitation.

17
long term Tuesday through Sunday ...

only tweaks to the long term based on the latest guidance.

Another wet system is in the cards late week into next weekend.

Bdl
previous discussion...

precip finally ends Mon evening as short wave moves out. Med range
guidance in fair agreement up until Thursday with NW flow becoming
wsw in advance of strong, digging short wave plowing down into tx
on thurs. GFS and ec cutoff this wave into a deep upper low over
the southern plains early Fri with vigorous ascent over ga,
though ec tracks this upper low over south ga and GFS takes it
north. Cmc meanwhile keeps wave open but still strong as it also
brings strong vertical motion over ga on fri. Luckily, even with
southern track of ec, temps will be too warm for any winter
precip. There could be some convection if GFS solution verifies,
though instability so far appears meager. There is some potential
for heavy rainfall with any of these solutions so will need to
watch this closely.

Snelson

Aviation
06z update...

ifr conditions becoming widespread with local to scattered periods
of lifr possible through 18z before lifting toward MVFR by 20-23z.

Periods of light rain and drizzle can be expected across the atlanta
metro and kahn TAF sites with lesser precipitation potential at
csg mcn. Light -rasn is possible at ahn, but surface temperatures
are expected to remain above freezing. While a brief mix cannot be
ruled out at atl area sites, confidence not high enough to include
in taf. Winds will remain nwly, generally 3-7kt.

Atl confidence... 06z update...

medium confidence on CIGS viz and precipitation coverage.

High confidence winds.

20

Preliminary point temps pops
Athens 34 42 31 53 60 60 30 0
atlanta 36 43 33 51 50 50 20 0
blairsville 32 41 25 47 60 60 20 0
cartersville 35 42 29 49 60 50 20 0
columbus 38 48 36 55 20 20 20 0
gainesville 34 42 30 50 60 60 30 0
macon 35 46 35 55 30 30 20 0
rome 35 42 28 49 60 50 20 0
peachtree city 35 45 33 53 40 40 20 0
vidalia 38 46 36 56 20 20 10 0

Ffc watches warnings advisories
Winter weather advisory until noon est Monday for the following
zones: banks... Fannin... Gilmer... Hall... Pickens.

Winter storm warning until noon est Monday for the following
zones: dawson... Lumpkin... Towns... Union... White.

Short term... Rw
aviation... Rw


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cobb County International Airport - McCollum Field, GA6 mi25 minN 010.00 miLight Rain38°F37°F97%0 hPa
Cartersville Airport, GA12 mi20 minN 09.00 miOvercast39°F37°F93%1017.1 hPa
Marietta / Dobbins Air Force Base, GA13 mi17 minWNW 510.00 miLight Rain38°F36°F93%1016.7 hPa
Dallas Paulding County Regional Airport, GA22 mi18 minN 010.00 miLight Drizzle36°F35°F100%1015.9 hPa
Atlanta, De Kalb-Peachtree Airport, GA23 mi20 minNW 59.00 miLight Rain38°F36°F93%1017.3 hPa
Fulton County Airport-Brown Field, GA23 mi20 minNW 310.00 miLight Rain39°F37°F96%1016.7 hPa

Wind History from RYY (wind in knots)
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Last 24hrE14
G23
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E11
G20
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G22
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G18
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G16
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G17
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G16
E7E7
G14
E6NE4E4E5CalmCalmCalmNW4CalmW5W4W6Calm
1 day ago--3E46E6E4E7E8E96
G14
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E9
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SE12
G24
SE10E10
G16
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G30
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G19
E9E16
G21
2 days agoCalmCalmCalmCalmNW3CalmW5NW3N33Calm--CalmW3W5CalmCalm3CalmCalmCalmCalm3Calm

Tide / Current Tables for
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Weather Map and Satellite Images
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GOES Local Image of    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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Wind Forecast for Peachtree City, GA (3,6,7,8)
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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.