000
FXUS62 KFFC 071120 AAA
AFDFFC

Area Forecast Discussion...Updated
National Weather Service Peachtree City GA
620 AM EST Sun Mar 7 2021

...12Z Aviation Forecast Discussion...


.SHORT TERM /Today through Monday/...

Upper flow pattern transitions from northwesterly to weak ridging
through the short-term forecast period as a large surface ridge
builds into the region. Near seasonal normal highs today and a bit
above tomorrow, but persistent dry low-level airmass allows
overnight lows to drop below normal tonight/Monday morning.

20


.LONG TERM /Monday Night through Saturday/...

The forecast area remains in a strong northwest upper flow through
the middle of the upcoming week. After that...the flow flattens
and transitions into a more west to southwest pattern. Models in
good agreement through Friday...but start to diverge at the very
end of the period. Strong high pressure aloft centered in the
northern Gulf should keep the deeper moisture to our north and
west. A cold front drifts into the OH Valley on Friday...but
depends on the evolution of a Great Lakes trough. At this time the
models are undecided on whether to deepen the trough or build the
ridge over the Great Lakes. For now...have taken the dry approach
and kept pops out through Saturday.

41


&&

.FIRE WEATHER...

Looking at widespread area of sub-25% relative humidity values again
this afternoon, essentially covering the entire forecast area.
Duration and 10-hour fuel moisture conditions favorable for a Fire
Danger Statement for all of our counties. Highly likely we will need
another statement for Monday as well as low-level moisture remains
limited and temperatures continue to moderate. Wind speeds should
remain below criteria to elevate this to Red Flag conditions.

&&



AVIATION...
12Z Update...

VFR conditions will predominate through the forecast period. Local
MVFR visibilities are possible, however, only TAF site expected to
see brief impacts is KMCN. Light, generally northwest, become north
to northeast 5-10kt by 14/15Z, then settle back to northwest to
north after 18Z. Wind speeds diminish to 2-6kt after 00Z.

//ATL Confidence...12Z Update...

High.

20

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          62  33  66  36 /   0   0   0   0
Atlanta         61  35  65  38 /   0   0   0   0
Blairsville     55  28  63  33 /   0   0   0   0
Cartersville    61  31  66  35 /   0   0   0   0
Columbus        65  36  68  37 /   0   0   0   0
Gainesville     60  33  65  37 /   0   0   0   0
Macon           64  33  68  34 /   0   0   0   0
Rome            63  32  68  35 /   0   0   0   0
Peachtree City  62  33  67  36 /   0   0   0   0
Vidalia         62  35  65  36 /   0   0   0   0

&&

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

$$

SHORT TERM...20
LONG TERM....41
AVIATION...20