Area Forecast Discussion
Issued by NWS Atlanta, GA

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FXUS62 KFFC 140643
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
143 AM EST Thu Dec 14 2017



.PREV DISCUSSION... /Issued 1036 PM EST Wed Dec 13 2017/

UPDATE...
Forecast is on track with no major changes needed this late
evening.

26

PREV DISCUSSION... /Issued 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...
06Z Update...
VFR Ceilings...No precip...No restrictions to VSBYs expected again
today. Winds will stay out of the West to Northwest at 10kt or
less.

//ATL Confidence...06Z Update...
High confidence on all elements.

01

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          56  34  51  31 /   0   0  10   5
Atlanta         54  35  48  31 /   0   0  10   5
Blairsville     46  25  42  24 /   0   0  10   5
Cartersville    51  30  45  28 /   0   0  10   5
Columbus        60  39  55  33 /   0   5  10  10
Gainesville     51  33  47  31 /   0   0  10   5
Macon           60  37  56  31 /   0   5  10  10
Rome            52  29  45  27 /   0   0  10   5
Peachtree City  57  34  50  29 /   0   0  10   5
Vidalia         61  41  59  36 /   0   0  20  10

&&

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

$$

SHORT TERM...01
LONG TERM....Deese
AVIATION...01



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