Wednesday, November14, 2018 L-36.com


Marine Weather and Tides
Flowery Branch, 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 7:07AMSunset 5:33PM Wednesday November 14, 2018 10:04 AM EST (15:04 UTC) Moonrise 12:55PMMoonset 11:35PM Illumination 40% Phase: Waxing Crescent; Moon at 6 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 Flowery Branch, GA
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location: 34.19, -83.92     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 141154
afdffc
area forecast discussion
national weather service peachtree city ga
654 am est Wed nov 14 2018

Prev discussion issued 436 am est Wed nov 14 2018
short term today through Thursday ...

short term forecast continues to be relatively straight forward and
summed up in a single word: wet. But there does seem to be an end in
sight in time for the weekend.

Models continue to show deepening upper level flow over the lower
mississippi valley that will lift through the tennessee valley
through late Thursday. The combination of anomalously high
precipitable water, strong forcing, and enhanced isentropic lift
will support a prolonged period of moderate to heavy rainfall
through Thursday, particularly this evening and overnight. Main
concern will be the flooding potential, with limited instability
keeping the severe storm threat non-existent.

For now, the heaviest forecast rainfall amounts run northeast across
the state, stretching from the greater columbus area through athens.

In this wide swath, 1.5 to 2.5 inches are forecast, with the
majority of it occurring between 7 pm tonight and early Thursday
morning. The highest forecast rainfall amounts are east of atlanta,
north of i-20 and south of i-85 (in the athens area), where rainfall
amounts of 2.5" or more will be common.

The prolonged rainfall observed over the last several days has kept
soils saturated, with local creeks and rivers at normal to well
above normal levels. As rainfall continues to accumulated, the
ability of rivers to handle the increased runoff is suppressed and
could quickly result in flash flooding. The flash flood watch
continues for a large majority of north and central georgia through
Thursday morning.

Near the end of the period, cold air advection will allow
temperatures to cool quickly Thursday night. There is a small
possibility of some mixed precip in the higher elevations just
beyond the valid period and into the extended forecast.

31
long term Thursday night through Tuesday ...

short wave moving rapidly through the oh valley Thursday night
could spread some cloudiness into our northern counties. The issue
is whether or not there will be enough moisture to produce
measurable precipitation. Dynamics look fairly strong into our far
north... So have continued with low pops for the 00z to 06z period
Friday. Rw- or sw- still look possible with little or no
accumulation. The next shift can revisit this for the afternoon
forecast. After that... The remainder of the long term looks dry
with mostly zonal flow aloft. A front pushes through ga on Monday
but GFS and ECMWF both show moisture decreasing as the front moves
south. So have included no pops for Monday. Temperatures should
moderate through the period.

41

Aviation
12z update...

ifr CIGS will persist through the period, with brief stints of
MVFR possible. Light rain will continue off an on through the day.

Winds have shifted to the ne, and expect ne-se winds through
sunrise Thursday before shifting back to the nw. Speeds will
increase to 9-12kt by late morning, with gusts to 18-21kt
persisting into the evening hours. Cig improvement expected
through the day tomorrow as the rain ends, with MVFR by mid to
late morning.

Atl confidence... 12z update...

medium on visibility.

High on all other elements.

31

Preliminary point temps pops
Athens 49 36 42 32 100 100 50 5
atlanta 48 38 42 32 100 100 30 5
blairsville 47 35 41 28 100 100 50 30
cartersville 48 37 42 30 100 100 40 5
columbus 53 41 45 33 100 100 20 0
gainesville 47 36 41 32 100 100 40 5
macon 52 40 49 32 100 100 30 5
rome 48 38 40 30 100 100 40 10
peachtree city 50 38 43 30 100 100 30 5
vidalia 57 45 54 36 90 100 40 5

Ffc watches warnings advisories
Flash flood watch through Thursday morning for the following
zones: baldwin... Banks... Barrow... Bartow... Bibb... Bleckley...

butts... Carroll... Catoosa... Chattahoochee... Chattooga...

cherokee... Clarke... Clayton... Cobb... Coweta... Crawford... Crisp...

dade... Dawson... Dekalb... Dodge... Dooly... Douglas... Fannin...

fayette... Floyd... Forsyth... Gilmer... Glascock... Gordon...

greene... Gwinnett... Hall... Hancock... Haralson... Harris... Heard...

henry... Houston... Jackson... Jasper... Jefferson... Johnson...

jones... Lamar... Laurens... Lumpkin... Macon... Madison... Marion...

meriwether... Monroe... Morgan... Murray... Muscogee... Newton...

north fulton... Oconee... Oglethorpe... Paulding... Peach...

pickens... Pike... Polk... Pulaski... Putnam... Rockdale... Schley...

south fulton... Spalding... Stewart... Sumter... Talbot...

taliaferro... Taylor... Towns... Troup... Twiggs... Union... Upson...

walker... Walton... Warren... Washington... Webster... White...

whitfield... Wilcox... Wilkes... Wilkinson.

Short term... 31
long term... .41
aviation... 31


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHDS1 - Strom Thurmond Dam, SC 98 mi25 min NE 8.9 G 13 50°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gilmer Memorial Airport, GA7 mi72 minno data10.00 miLight Rain47°F46°F100%1025.4 hPa
Gwinnett County Airport-Briscoe Field, GA15 mi69 minE 105.00 miLight Rain Fog/Mist48°F46°F96%1026.3 hPa

Wind History from GVL (wind in knots)
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Last 24hrW6W4W10W9W6W9W9W9W8NW4CalmE3NW6N5NE4W4E9E7E8E11E8E8--E10
1 day agoE9E8NE10E7E8NW9E5E11
G18
E10E9E8E5E6E10E7E4E8E5N3CalmCalmCalmSE3SW5
2 days agoE9E9E5E7E6E5E6E5NE6E6E7E4E8E8E9E6E6NE5E5NE8E10
G16
E9E10NE14
G20

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    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 (10,2,3,4)
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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.