Area Forecast Discussion
Issued by NWS Atlanta, GA

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FXUS62 KFFC 170955
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
455 AM EST Wed Jan 17 2018



.SHORT TERM /Today through Thursday/...

Primary concern is ending time of snow. Currently bands of light to
moderate snow still ongoing south of a Carroton to Canton line.
Could see an additional inch or so before it ends from west to east
this morning. Temps have cooled dramatically as expected and nearly
all roads have beomce ice and snow covered. Have used CONSShort
blend for hourly temps and derived MaxT from that which is somewhat
colder than previous forecast. Used CONSShort and HRRR to derive
near term QPF and SnowAmt. Based on this and radar trends, could see
another 1 to maybe 2 inches additional accumulation over west
central GA and south ATL metro. Wind chills still on track for
advisory criteria, particularly in mountain areas. Further south and
east, snow should have less impacts as temps closer to freezing.

Mainly tweaks to the Winter Wx and Wind Chill Advisories. Based on
reports of slick roads and vehicle incidents, have also issued
Special Wx Statement to highlight extremely hazardous driving
conditions continuing all day and tonight due to temps in the teens
and 20s.


SNELSON



.LONG TERM /Thursday Night through Tuesday/...

The long term begins with a zonal flow aloft and a dry airmass.
A southern stream short wave moves across the northern Gulf and
tracks gradually eastward off the Atlantic coast by the first of the
week. Models seem to bring this across our area without any
precipitation. The next rain event is on track toward the end of the
weekend and into the first of the week. GFS/ECMWF are now slower
with the surface front...starting the showers late Sunday night and
the front crossing the forecast area on Monday. Rain should be
ending on Monday night. There will be a warming trend through the
weekend and this will be an all liquid event. Have kept the mention
of thunder out for now...although some weak CAPE develops over west
central GA on Monday. Tuesday looks dry with near seasonal
temperatures.


41


&&


41

AVIATION...
06Z Update...
IFR/MVFR cigs and VSBYs with continued bands of -SN along strong
cold front pushing SEWD this morning. SN could restrict VSBY down
to 2SM at times so continued tempo groups of lower IFR within
predominant MVFR. SN should push SE of near KATL after about 10z
(slightly later for other sites) and then quickly scatter/lift,
though enhanced NW winds will kick in for the rest of the day
today. Expecting 14-18 kts gusting up to 30 kts, which may end up
in Wind Advisory levels.

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

Baker

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          36  18  46  25 /  70   0   0   0
Atlanta         27  17  42  25 /  30   0   0   0
Blairsville     23  10  42  19 /  10   0   0   0
Cartersville    26  15  41  20 /  10   0   0   0
Columbus        32  20  46  25 /  60   0   0   0
Gainesville     30  18  44  25 /  40   0   0   0
Macon           34  19  47  24 /  80   0   0   0
Rome            26  15  42  20 /  10   0   0   0
Peachtree City  29  17  44  22 /  40   0   0   0
Vidalia         39  23  47  28 /  70   0   0   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 4 PM EST this afternoon for the
following zones: Baldwin...Banks...Barrow...Bibb...Bleckley...
Butts...Chattahoochee...Clarke...Crawford...Crisp...Dodge...
Dooly...Glascock...Greene...Hancock...Houston...Jackson...
Jasper...Jefferson...Johnson...Jones...Lamar...Laurens...Macon...
Madison...Marion...Monroe...Morgan...Muscogee...Newton...
Oconee...Oglethorpe...Peach...Pulaski...Putnam...Schley...
Stewart...Sumter...Talbot...Taliaferro...Taylor...Twiggs...
Upson...Walton...Warren...Washington...Webster...Wilcox...
Wilkes...Wilkinson.

Winter Weather Advisory until 9 AM EST this morning for the
following zones: Bartow...Carroll...Catoosa...Chattooga...
Cherokee...Clayton...Cobb...Coweta...Dade...Dawson...DeKalb...
Douglas...Fannin...Fayette...Floyd...Forsyth...Gilmer...Gordon...
Gwinnett...Hall...Haralson...Harris...Heard...Henry...Lumpkin...
Meriwether...Murray...North Fulton...Paulding...Pickens...Pike...
Polk...Rockdale...South Fulton...Spalding...Towns...Troup...
Union...Walker...White...Whitfield.

Wind Chill Advisory until 10 AM EST Thursday for the following
zones: Dawson...Fannin...Gilmer...Lumpkin...Pickens...Towns...
Union...White.

Wind Chill Advisory until 1 PM EST this afternoon for the
following zones: Bartow...Carroll...Catoosa...Chattooga...
Cherokee...Clayton...Cobb...Coweta...Dade...DeKalb...Douglas...
Fayette...Floyd...Forsyth...Gordon...Gwinnett...Hall...
Haralson...Harris...Heard...Henry...Meriwether...Murray...North
Fulton...Paulding...Pike...Polk...Rockdale...South Fulton...
Spalding...Troup...Walker...Whitfield.

&&

$$

SHORT TERM...Baker/SNELSON
LONG TERM....41
AVIATION...Baker



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