012 FXUS62 KFFC 201119 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 719 AM EDT Fri Sep 20 2019 ...12Z Aviation Discussion... .PREV DISCUSSION... /Issued 335 AM EDT Fri Sep 20 2019/ SHORT TERM /Today through Saturday/... Seasonal temperatures have taken hold through the forecast area after the passage of yesterday's wedge front. Through the short term forecast period, ridging aloft will center over the region with surface high pressure situated east of the southern Appalachians. Subsidence and dry air will limit precip and cloud cover over the area with clear to mostly clear skies, and light easterly winds with occasional breezy gusts in the afternoons. High temperatures in the low- to mid-80s will be around the seasonal norm, but tomorrow's temps will begin to increase over the next several days. Thiem LONG TERM /Saturday Night through Thursday/... The long term portion begins with continued dry conditions across the area. High pressure will be anchored off the Carolinas with a return flow off the Atlantic continuing to moderate the airmass and send temps back to the upper 80s Sun afternoon and around 90s for SE portions. The high will begin to break down Monday as mid level high also retreats to the southern plains states. This will allow a weak frontal boundary to swing into the northern portions of the state. Most of the energy with this system will swing eastward across the Great Lakes states and north of our area. Will will see precipitable water increase to around 1.80 inches and some very low most unstable CAPE values for far northern sections. Will go 20 pops for now but even this may be a stretch given the drier ECMWF solution. Front clears the area through Tue but no relief from the heat as mid level ridge remains in place and temps stay in the 90s. Strong shortwave moving through the Tennessee Valley Thu may be enough to generate some isolated pops for the northern tier once again given more favorable moisture and instability profile. Deese && .AVIATION... 12Z Update... VFR conditions will prevail with mostly clear skies expected through the forecast period, with upper-level clouds increasing tomorrow. Winds will remain out of the east around 4-9kts with occasional gusts. //ATL Confidence...12Z Update... High confidence on all elements. Thiem && .PRELIMINARY POINT TEMPS/POPS... Athens 81 59 85 59 / 0 0 5 0 Atlanta 83 62 86 62 / 0 0 5 0 Blairsville 76 53 80 54 / 0 0 0 5 Cartersville 85 60 88 61 / 0 0 0 0 Columbus 86 64 88 64 / 0 0 0 0 Gainesville 81 59 85 59 / 0 0 5 5 Macon 85 63 87 61 / 0 5 5 0 Rome 85 59 88 61 / 0 0 0 0 Peachtree City 84 61 87 60 / 0 0 5 0 Vidalia 86 65 90 63 / 5 5 5 0 && .FFC WATCHES/WARNINGS/ADVISORIES... NONE. && $$ SHORT TERM...Thiem LONG TERM....Deese AVIATION...Thiem