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FXUS62 KFFC 021858 AFDFFC

Area Forecast Discussion National Weather Service Peachtree City GA 158 PM EST Sat Dec 2 2023

New 18Z Aviation Discussion

SHORT TERM
(Today through Sunday)
Issued at 323 AM EST Sat Dec 2 2023

Large scale upper trough is presently located over the E Rockies with SW flow aloft over the local area. A weak shortwave is over the N GOMEX. At the surface, a cold front extends from the OH Valley to SW Louisiana with several weak waves along the front. A warm front (and remnant of the wedge) extends into the NE corner of the state. Areas of dense fog have developed across much of N GA, and a Dense Fog Advisory has been hoisted (valid until 9 AM). Due to the thick cloud shield across the area, the advisory may need to be extended. Patchy drizzle is also occurring across portions of the area.

Rain showers are forecast to increase across the area today, with the heaviest rainfall amounts across the S County Warning Area (CWA), mainly S of a Columbus to Warner Robbins line where 1-2" of additional rainfall area is possible. Thin CAPE profiles and increasing wind shear will lead to isolated thunderstorms today, with scattered storms possible across the S portion of the area. The aforementioned cold front will slide into the area early Sunday morning, potentially supporting a pre-frontal band of thunderstorms as well. Severe storms are not anticipated, but storms across the SW portion of the CWA may become strong this afternoon. Pre-frontal temperatures will remain warm, with highs today ranging from the upper 50s in the NE mountains to the lower 70s across the SE. Rain will come to an end behind the front as it moves SE through the day Sunday. Similar daytime highs are expected on Sunday as some peeks of sun return and before cooler air filters in. /SEC

LONG TERM
(Sunday night through Friday)
Issued at 323 AM EST Sat Dec 2 2023

By the start of the longterm outlook, the cold-front will have made its way through the CWA. Northwest flow will mean significantly drier air works its way into the region with PWATs dropping from around 1 inch to around 0.25 inches. Temps will drop slightly as well with daily highs in the 50s and lows falling from low 40s down into the 30s. Conditions through the remainder of the outlook look to be dry with little to no airmass changes and weak shortwave pulses aloft.

Given breezy and dry conditions behind the front over continued drought, fire weather may become more of an issue around mid week.
SM

AVIATION
(18Z TAFS)
Issued at 156 PM EST Sat Dec 2 2023

Low MVFR cigs likely through the late afternoon. Do expect the Cigs to begin lowering again by the early evening with LIFR conditions likely shortly after 00Z. Patchy dense fog will once again be possible tonight. Gradual improvement expected during the early afternoon tomorrow. Winds should turn to the SW side around 7Z.

//ATL Confidence
18Z Update

Med confidence.

NListemaa

PRELIMINARY POINT TEMPS/POPS
Athens 61 69 42 63 / 50 30 0 0 Atlanta 62 66 44 61 / 70 20 0 0 Blairsville 56 61 36 55 / 70 30 0 10 Cartersville 59 65 41 61 / 70 20 0 0 Columbus 65 70 47 65 / 70 60 0 0 Gainesville 59 65 42 60 / 60 30 0 0 Macon 65 71 46 66 / 60 60 10 0 Rome 59 66 41 60 / 60 20 0 0 Peachtree City 62 67 42 62 / 70 30 0 0 Vidalia 66 74 52 68 / 80 60 10 0

FFC WATCHES/WARNINGS/ADVISORIES
None.

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