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Area Forecast Discussion (AFD)

Issued by Peachtree City, GA (FFC)

                            
961 
FXUS62 KFFC 132004
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
304 PM EST Wed Dec 13 2017


.SHORT TERM /Tonight through Thursday Night/...

No forecast hazards or chc for precip expected in the short term 
period. 12Z model guidance and adjacent office forecasts in good 
agreement today.

Temperatures in the near term this afternoon about on track but 
dewpoint temps several degrees below forecast likely due to deep 
mixing. Humidity quite low and near fire weather criteria but with 
cool temps and winds less than 10kts have held off on issuing any 
products.

High clouds should increase Thurs night but any chc for precip will 
hold off until Friday, if it were to occur. Temps should remain near 
normal with slightly above normal daytime temps.

SNELSON

&&

.LONG TERM /Friday through Wednesday/...

Latest model runs do not warrant adjusting much in the way of the
previously thought pops/weather. There continues to be rather
large discrepancies between the GFS and Euro for early next week
with the evolution of the upper trough energy and interacting
moisture field. The GFS continues to be a much less progressive
solution. Still potential for a thunderstorm threat Monday to
parts of the south given a nose of potential instability in a
highly sheared environment so will watch with future updates.
Previous discussion follows...

BAKER

PREV DISCUSSION... /Issued 330 AM EST Wed Dec 13 2017/ 

LONG TERM /Thursday Night through Tuesday/...

No significant changes made to the long-term forecast trends.
Medium-range models remain somewhat static in the large scale pattern
but fairly progressive concerning the smaller-scale features through
the majority of the period. Also continue to see fairly good
agreement between models through the beginning of next week. Some
divergence as we head into the middle of next week. All-in-all,
period starts out cool but dry. Short wave sweeps through Friday, but
better moisture and precipitation remains generally south of the
forecast area. Shift to a persistent southwesterly upper flow pattern
over the weekend brings in a milder and wetter period by Sunday
through late Monday, tapering off some as we head into the middle of
next week. 

20

&&

.AVIATION...
12Z Update...
VFR Ceilings... No precip... No restrictions to VSBYs expected.
Winds will be the primary concern today. Through the morning a
shift in the wind direction from the NW towards the SW is expected
as wind speeds increase by the afternoon to 8-15 kts with little 
gusts. After 00Z, winds should shift back to westerly with wind 
speeds decreasing after 06Z to 10kts or less.

//ATL Confidence...12Z Update...
High confidence on all elements.

Thiem/01

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          35  56  34  51 /   0   0   0  10 
Atlanta         36  54  35  48 /   0   0   0  10 
Blairsville     29  46  25  42 /   0   0   0  10 
Cartersville    33  51  30  45 /   0   0   0  10 
Columbus        36  60  39  55 /   0   0   5  10 
Gainesville     36  51  33  47 /   0   0   0  10 
Macon           35  60  37  56 /   0   0   5  10 
Rome            32  52  29  45 /   0   0   0  10 
Peachtree City  34  57  34  50 /   0   0   0  10 
Vidalia         38  61  41  59 /   0   0   0  20 

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM...SNELSON
LONG TERM....20/BAKER
AVIATION...SNELSON