FXUS62 KFFC 111909
Area Forecast Discussion
National Weather Service Peachtree City GA
209 PM EST Mon Dec 11 2017
.SHORT TERM /Tonight through Tuesday Night/...
A rather strong cold front and upper level trough are forecast to
move across the area tonight and early Tuesday. The system is
lacking deep moisture and the models are consistent with indicating
no significant precip for the far N. At this time, am just expecting
an increase of clouds, most so for n GA. Can Not rule out some
brief sprinkles or flurries for the NE Mountains late tonight and
A decent pressure gradient will be associated with the frontal
passage and Gusty WNW winds will increase during the morning hours
across the area. Some locations will likely see wind advisory criteria
of 20 mph sustained. Gusts of 25 to 35 mph will also be likely.
A wind advisory may be needed.
A colder airmass will move over the area as well. Forecast low
temperatures are running close to normal tonight and around
10 degrees below normal Tuesday night. Forecast high temperatures
are running about 6-10 degrees below normal on Tuesday.
Overall confidence is medium to high.
.LONG TERM /Wednesday through Monday/...
Not many changes to the long term as previous was in excellent
shape. Enough evidence now on the system a late Sunday into Monday
to warrant inclusion of some slight chance thunder. Also adjusted
Friday pops to reflect latest model trends.
Previous Long Term...
No significant changes through the extended forecast period from
previous forecast trends. Medium-range models continue to be in
fairly good agreement through the period. Two mainly dry short waves
and associated cold fronts sweep through the region during the
workweek. Cold start to the period Tuesday night/Wednesday behind
the first system. Models indicate temperatures should rebound
quickly heading into the end of the workweek ahead of the next system
Friday. Marginal moisture available with this late week system, and
mainly confined to the southern and eastern portions of the forecast
Much more vigorous system moves in at the end of the period. Much
warmer and more moist air mass sweeps into the region with this
system bringing much better chances for precipitation and minimizing
any chances for wintry precipitation types.
VFR conditions with some increasing clouds. 3000-4500 Few-Sct
clouds expected Tuesday with some Bkn conditions possible around
the 12-18z time frame. Surface winds WSW less than 10 kts today
increasing to WNW 12-20 kts with gusts to 30 kts on Tuesday.
//ATL Confidence...18Z Update...
Low confidence for any lower ceilings on Tuesday.
High confidence on all other elements.
.PRELIMINARY POINT TEMPS/POPS...
Athens 38 49 26 46 / 0 0 0 0
Atlanta 39 45 27 46 / 0 0 0 0
Blairsville 32 40 20 40 / 5 5 5 0
Cartersville 35 44 24 45 / 0 0 0 0
Columbus 39 52 29 50 / 0 0 0 0
Gainesville 38 45 26 43 / 0 0 0 0
Macon 38 54 28 49 / 0 0 0 0
Rome 36 43 24 46 / 0 0 0 0
Peachtree City 37 48 26 47 / 0 0 0 0
Vidalia 40 60 31 50 / 0 0 0 0