361 
FXUS62 KFFC 100813
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
413 AM EDT Thu Sep 10 2020

.SHORT TERM /Today through Friday/...

500mb analysis shows the drier air still lingering across NW and W 
portions of the CWA. An inverted trough remains near the SE coast. 
Along and east of this trough, a very moist airmass is in place. A 
weak upper level disturbance will move west across the CWA 
today...mainly across central and southern portions of the area. 
High pressure from the west will build in across the north tonight 
and Friday, but a weakness between this ridging and the western 
Atlantic ridge will continue along the coast through the remainder 
of the short term period. 

At the surface, an inverted trough also remains stationary along the 
SE US coastline. The trough should continue as a focus for 
convection through the period. In combination with the upper 
disturbance today, expect more convective coverage than in previous 
days. The surface trough and upper levels are expected to be even 
more active again tomorrow and pops should be a bit more widespread 
than today's, especially across the south.

NListemaa


.LONG TERM /Friday Night through Wednesday/...

The tropical airmass with PW values exceeding 2 inches will make 
this weekend feel hot and muggy for most of the CWA. Temperatures in 
the high 80s and lower 90s will be accompanied by widespread 
dewpoints in the mid 70s. As a result afternoon thunderstorms appear 
likely each day. These storms could produce some heavy rain, and a 
few isolated storms could become severe. 

This tropical airmass remains in place going into the beginning of 
next week as well with afternoon thunderstorms and temperatures 
around 5 degrees above normal. There is the potential for parts of 
northern Georgia to see up to 1.5 inches of rain early next week as 
a stationary front stalls in Tennessee. Isolated areas could see 
higher amounts. By the middle of the week though models are 
indicating a dip in the jet stream accompanied by a surface high 
across southern New England. Northeasterly flow could produce a 
wedge which may bring about some fall temperatures to the region. 
There is some uncertainty though, the wedge may be reinforced or 
prevented by the presence of a tropical system that is expected to 
remain off the coast. 

The tropics have become more active in the past few days, and as we 
enter peak hurricane season all persons with invested interest 
should continue to monitor the tropics and updated forecasts 
carefully. 

Vaughn


&&

.AVIATION... 06Z Update... MVFR/IFR CIGs likely overnight and 
early Thursday morning. There are some differences between the 
models for CIGs overnight Thursday into Friday morning, so will 
stick to potentially BKN MVFR. East winds through the period, 
although they will try and go light/vrb overnight tomorrow night. 
Chances for precip are higher today...no changes to the prob group
at this time. 

//ATL Confidence...06Z Update... 
Med confidence CIGs and pops. High confidence remaining elements. 

NListemaa

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          87  71  88  71 /  30  30  50  40 
Atlanta         87  72  88  71 /  30  30  40  20 
Blairsville     84  65  84  66 /  50  30  60  30 
Cartersville    89  70  89  71 /  30  20  40  10 
Columbus        90  73  91  73 /  40  30  60  20 
Gainesville     86  71  87  71 /  30  30  40  30 
Macon           89  72  90  71 /  40  30  60  30 
Rome            90  70  90  71 /  20  10  30  10 
Peachtree City  87  71  88  70 /  30  30  50  20 
Vidalia         89  73  89  73 /  60  40  70  30 

&&

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

$$

SHORT TERM...NListemaa
LONG TERM....Vaughn
AVIATION...NListemaa