Sunrise 6:55 AM   Sunset 8:16 PM Moonrise 7:15 PM   Moonset 5:39 AM

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FXUS62 KFFC 232337 AFDFFC

Area Forecast Discussion National Weather Service Peachtree City GA 737 PM EDT Tue Apr 23 2024

New 00Z Aviation Discussion

SHORT TERM
(This evening through Wednesday)
Issued at 310 PM EDT Tue Apr 23 2024

An overall quiet period through the next couple of days. High temperatures will be in the 70s and around 80 further south. Lows in the upper 40s to low 50s. Our only feature of interest comes from a boundary (I struggle to call it a cold front) that moves southward through the area tomorrow afternoon. A few showers may be possible along I20 and South, however these will likely be isolated at best.
The problem with this is the stable sfc high which continues to sit to our east, keeping us drier during the boundary passage, and suppressing any upward motion. Therefore, have left PoPs spotty and below 25 percent at its highest.

Fire weather wise, winds may be slightly gusty but overall will mostly stick to around 10 mph. RH values will remain above any 30 percent, particularly since we should begin moistening tomorrow afternoon and evening.

SM

LONG TERM
(Thursday morning through next Monday)
Issued at 310 PM EDT Tue Apr 23 2024

As the extended period begins on Thursday morning, surface high pressure will be centered over the Great Lakes region, which will advance a weakening cold front into central Georgia. Low temperatures on Thursday morning will be in the upper 40s to low 50s in north Georgia behind the front, and in the mid to upper 50s ahead of the front. As the surface high pressure moves away to the east and a low pressure system develops to the east of the Rockies, the frontal boundary is expected to lift back to the north as a warm front on Thursday into Friday. Isolated showers and increased coverage will be possible in the vicinity of the front, although widespread rain is not anticipated at this time. High temperatures on Thursday will range from 0-4 degrees above daily averages, in the upper 70s in north Georgia and low 80s in central Georgia. As the aforementioned high pressure sets up over the New England area on Friday, a CAD wedge is expected to develop along the lee side of the Appalachians and spread into northeast Georgia. Here, temperatures are forecast to be cooler and limited to the 60s to low 70s.
Elsewhere across the forecast area, highs on Friday will once again range from the upper 70s to low 80s.

Friday into Saturday, pronounced mid-level ridging will take hold over much of the eastern CONUS. Meanwhile, the low pressure system to the east of the Rockies will advance northeastward, riding the north side of this ridge towards the Great Lakes region. The cold frontal boundary and associated precipitation expected to stall out before reaching the forecast area. The gradual warming trend will continue through the weekend as 1000-500 mb thicknesses increase under the influence of the ridge. Southwesterly flow aloft will set up on the back side of the ridge in the later part of the weekend, which will also lead to moisture return and increasing cloud cover in the forecast area through the weekend. A second low pressure system will advance northeastward along roughly the same track as the first on Sunday into Monday. While a cold front extending from the south of the low will bring the next appreciable chance for showers and thunderstorms to the area, long-term guidance continues to trend slower with the progression of this system, with precipitation spreading into north Georgia by Monday afternoon, spreading southward overnight into Tuesday.

King

AVIATION
(00Z TAFS)
Issued at 729 PM EDT Tue Apr 23 2024 VFR conditions expected to continue through the period. Expecting increasing clouds Wednesday but they should stay above VFR criteria. We should also see some isolated SHRA/TSRA but it should stay isolated enough to keep away from the TAF locations. Winds are out of the SW and will turn to the W by daybreak. They will continue to turn to the NW through Wed evening. Wind speeds should stay in the 6-12kt range through the period.

//ATL Confidence
00Z Update

Confidence high on all elements.

01

PRELIMINARY POINT TEMPS/POPS
Athens 50 77 50 77 / 0 0 0 10 Atlanta 52 76 54 77 / 0 20 10 10 Blairsville 47 69 44 73 / 0 0 0 0 Cartersville 48 74 48 78 / 0 10 10 10 Columbus 51 80 58 82 / 0 0 0 20 Gainesville 52 74 51 76 / 0 0 0 10 Macon 49 80 57 82 / 0 0 10 10 Rome 49 74 48 78 / 0 10 0 10 Peachtree City 50 78 53 80 / 0 20 20 10 Vidalia 51 81 60 82 / 0 0 0 10

FFC WATCHES/WARNINGS/ADVISORIES
None.

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