Area Forecast Discussion
Issued by NWS Atlanta, GA

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
FXUS62 KFFC 071731
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
1231 PM EST Wed Dec 7 2016



.PREV DISCUSSION... /Issued 1004 AM EST Wed Dec 7 2016/

UPDATE...
Increased the cloud cover and lowered the MaxTs a few degrees for
the morning update. Satellite imagery shows a good deal of the
CWFA with mostly clear skies...with copious low clouds along the
edges. The clouds to the east keep slowly inching westward...with
the clouds in the west slowly inching eastward. Do think clouds
will fill in as moisture gets trapped under the inversion. The
increased cloud cover will lead to the high temps begin a few
degrees cooler than expected.

PREV DISCUSSION... /Issued 635 AM EST Wed Dec 7 2016/

.Much colder temperatures expected Thursday night and Friday...

Previous Discussions... /Issued 335 AM EST Wed Dec 7 2016/

SHORT TERM /Today through Thursday/...
Short range models are in good agreement with a zonal flow aloft
helping to hold a stalled cold front across far north GA today. This
coupled with mostly to partly cloudy skies will produce near normal
highs today... mainly from lower to mid 50s north to 60s central. A
strong upper disturbance will push into the Ohio Valley late tonight
and begin to push the cold front southward through Thursday.
Although any associated moisture will be limited... the strong
forcing aloft will warrant a slight chance of light showers across
parts of north GA late tonight/early Thursday morning. The initial
slow frontal push suggest the cold air will not arrive until
Thursday. Therefore tonight... expecting partly to mostly cloudy
skies with near normal lows... generally in mid and upper 30s north
to 40s central. Behind the cold front... a very cold dome of high
pressure will build southward and begin ushering in some of the
coldest air felt so far this winter. Expect a breezy 15 to 20 mph NW
wind to hold highs in the 40s across most of north GA on Thursday...
while south of the cold front... parts of central GA may be able to
see temps climb into the upper 50s to lower 60s before the cold air
arrives by Thursday evening. Either way... the breezy northerly
winds will make it feel colder... so bundle up. Otherwise... a blend
of mos guidances looked reasonable for temps and pops... so did not
stray far through the short term.

39

LONG TERM /Thursday Night through Tuesday/...
Still not looking at any significant changes to the Long-Term
Forecast trends with this cycle. Medium-range models continue to edge
slightly less extreme concerning the cold airmass to start the
period, although temperatures will be below seasonal normals and will
be the coldest of the season so far. Overall pattern remains fairly
progressive and a decent moderation of temperatures occurs ahead of
the late weekend system and it still looks like a liquid event at
this time.

20


39

&&

.AVIATION...
18Z Update...
Difficult cig forecast on tap for this TAF cycle. Models do not
have a great handle on what is currently going on, especially over
near AHN. Do believe moisture will continue to be trapped under
the inversion, and skies will be a little cloudier overnight. For
now, it looks like it could be bkn mvfr...but not confident. Winds
will remain on the west side and frequent gusts to around 15kt
will be possible tomorrow.

//ATL Confidence...18Z Update...
Low to medium confidence on cloud forecast. Otherwise, high
confidence remaining elements.



&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          59  41  54  27 /   5  10  10   5
Atlanta         56  41  50  26 /   5  10  10   5
Blairsville     54  36  44  19 /   5  20  20   5
Cartersville    55  38  47  24 /   5  10  10   5
Columbus        59  44  56  29 /   0  10  10   5
Gainesville     56  40  50  26 /   5  10  10   5
Macon           62  43  59  29 /   5  10  10   5
Rome            55  39  47  23 /   5  20  20   5
Peachtree City  57  40  51  25 /   0  10  10   5
Vidalia         65  47  63  36 /   5  10   5   5

&&

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

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.