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Area Forecast Discussion (AFD)

Issued by Peachtree City, GA (FFC)

FXUS62 KFFC 201750

Area Forecast Discussion
National Weather Service Peachtree City GA
150 PM EDT Tue Mar 20 2018

.PREV DISCUSSION... /Issued 1140 AM EDT Tue Mar 20 2018/ 

A few showers linger across east central GA late this morning,
mainly along the surface front. Anticipate the front will have
exited the forecast area by the time afternoon heating can aid in
thunderstorm development. Have dropped showers and thunderstorms 
from central GA this afternoon, but will continue to monitor. 
Temperatures look on track for this afternoon, but have made 
tweaks to the sky cover as we will see some partly cloudy skies - 
particularly south of the Atlanta and Athens areas - before the 
wrap around moisture bring the mid clouds back into the area. 
Continue to expect a mix of rain and snow overnight with all snow 
in the higher elevations. Accumulations remain light - at less 
than an inch. Updated forecasts will be out shortly.

PREV DISCUSSION... /Issued 443 AM EDT Tue Mar 20 2018/ 

SHORT TERM /Today through Wednesday/...
Main line of strong to sever storms has moves south of MCN and
will continue moving southeast through daybreak. the main parent
low center is right along the NC/TN/KY/VA borders and is expected
to continue moving NE through tonight. This will allow the main 
frontal boundary to move off the eastern seaboard by sunset Thu 
evening. We are looking for a good deal of deep moisture to move 
back in across N GA around the back side of the low center this 
afternoon and tonight. This will bring rain to the area and it 
will turn over to snow as a cooler airmass moves into the area 
overnight. Not expecting much in the way of accumulations with 
only locations across N GA expecting any snow at all. Most places 
will see a half inch or less with some isolated spots in the N GA
mountains seeing up to an inch. Winds will also pick up behind 
this frontal boundary with W to NW winds expected in the 15-20mph 
range gusting to near 30 mph by this afternoon and tonight. right
now we are expecting winds to be just under criteria from a wind 
advisory but will have to keep a close eye on how this develops to
see if we may need one a little later today. Winds will still be 
a bit breezy Wednesday but will have clear skies. 

High temps today will range from near 60 across N GA to the upper
70s across central GA. Low temps tonight will plummet into the 
30s and 40s with high temps Wednesday only rising into the 40s to 
near 60. 


LONG TERM /Wednesday Night through Monday/...
Thursday and Friday will bring moderating temperatures and will 
remain primarily dry with only a slight chance of a few showers 
sneaking into far north Georgia by late Friday. Rain chances 
appear to begin to increase more appreciably by Saturday as the upper
pattern transitions into a more zonal flow and a low pressure 
system moves into the Ohio Valley. There is still some
inconsistencies in the run to run guidance of the models but
definitely transitioning into a wetter pattern for the weekend 
into the middle of next week. 



18Z Update...
VFR CIGs will continue across TAF sites although ATL area may
flirt with MVFR 04-08Z before skies scatter out. WEST to NORTHWEST
winds will increase to 8-13kts with gusts possible through
tomorrow afternoon. Brief showers n ATL area possible this
afternoon but confidence is too low to include a TEMPO group at
this time. No restrictions to visibility is expected.

//ATL Confidence...18Z Update...
High confidence in all elements except chance of showers.



Athens          71  37  53  33 /  30  20   5   0 
Atlanta         66  36  52  34 /  30  20   0   0 
Blairsville     61  31  42  27 /  50  40  20   5 
Cartersville    63  35  51  31 /  40  30   5   0 
Columbus        69  40  59  37 /  20  10   0   0 
Gainesville     65  35  49  32 /  30  20   5   0 
Macon           74  40  59  35 /  20   5   0   0 
Rome            61  34  52  31 /  30  30   5   0 
Peachtree City  67  37  54  34 /  30  20   0   0 
Vidalia         77  42  60  38 /  40  10   0   0