Area Forecast Discussion
Issued by NWS Atlanta, GA

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531
FXUS62 KFFC 200509
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
1209 AM EST Mon Feb 20 2017



.UPDATE...
Updated for the 06Z Aviation Discussion.

&&

.PREV DISCUSSION... /Issued 919 PM EST Sun Feb 19 2017/

UPDATE...
High pressure will continue across the area overnight. The
forecast is in good conditions and only made some minor tweaks to
the hourly temps/dews.

PREV DISCUSSION... /Issued 158 PM EST Sun Feb 19 2017/

SHORT TERM /Tonight through Monday Night/...
Ridge of high pressure will dominate the weather pattern over the
state through the short term. Winds will shift to the east around
the surface high on Monday, drawing Atlantic moisture into the
region. As a result, after a sunny day Monday, clouds will increase
over the area Tuesday. There is enough low level moisture will
provide an opportunity for patchy fog to develop each morning
through Tuesday. Next system approaches the area just beyond the
short term period.

Warming trend expected through the short term, with lows generally
in the 40s and low 50s, and highs reaching the mid to upper 70s
Monday afternoon. Forecast temperatures are generally 2-3 degrees
from record values. Please see the Climate section below for
reference.

31

LONG TERM /Tuesday through Sunday/...
Mainly only tweaks to the long term based on the latest guidance.

BDL

PREVIOUS DISCUSSION...
Models in good agreement holding a surface to upper level ridge over
the CWA through Tuesday afternoon. Another developing frontal
system moves out of the southern and central plains and into the
Southeastern U.S. Tuesday morning. This front brings increased
chances of showers to the CWA Tuesday afternoon through Wednesday.
The forecast models differ a bit on the strength and intensity of
this next system but they both show it weakening as it pushes
into GA. There is very little instability with it so staying with
showers and no mention of thunder. This weakening system keeps
increased moisture over the area through the end of the work week
so will keep slight chance to chance pops across the area through
then. Another short wave and associated cold front will move out
of the midwest and into the eastern US Friday. This system is
expected to have a little more instability with it so keeping in
the mention of isolated thunderstorms for Friday/Friday Night.
This second front appears to move east of the CWA Sat and clear
things out for Sat afternoon and Sun.

01

CLIMATE...

Records for 02-20

               Max Temperature         Min Temperature
  Station      High        Low         High        Low
  -------  ----------  ----------  ----------  ----------
   KAHN      78 1986     37 2015     57 1991     14 2015
   KATL      78 1986     32 1901     57 2014     16 2015
                                        1994        1934
   KCSG      80 1986     36 2015     63 1991     21 2015
                                        1917
   KMCN      80 1991     37 2015     61 1961     18 2015
                1986


&&

.AVIATION...
06Z Update...
VFR conditions will continue through the forecast. There could be
areas of fog later this morning in the more fog prone areas but
this should dissipate rapidly after sunrise. Some moisture just
off the surface should lift after sunrise producing FEW035-050
into the afternoon. Otherwise SCT-BKN250 through the forecast.
Areas of SCT015 will develop after midnight Monday night. Winds
will become northeast by 09Z and remain on the east side through
the forecast. Speeds will remain less than 10 kts.

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

17

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          75  49  71  54 /   0   0  20  60
Atlanta         75  53  71  56 /   0   0  20  60
Blairsville     72  45  66  49 /   0   0  20  60
Cartersville    74  49  71  53 /   0   0  50  60
Columbus        78  54  76  57 /   0   0  20  50
Gainesville     73  50  68  53 /   0   0  20  60
Macon           77  50  75  56 /   0   0  20  40
Rome            74  49  71  53 /   0   0  50  60
Peachtree City  76  48  72  53 /   0   0  20  60
Vidalia         78  53  76  58 /   0   0   5  20

&&

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

$$

SHORT TERM...17
LONG TERM....01
AVIATION...17



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