Area Forecast Discussion Issued by NWS Atlanta, GA
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