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Area Forecast Discussion
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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320 FXUS62 KFFC 111740 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 140 PM EDT Tue Jun 11 2024 ...New 18Z Aviation Discussion... .SHORT TERM... (Today through Wednesday) Issued at 331 AM EDT Tue Jun 11 2024 Old frontal boundary is currently across far south GA/north FL. This boundary will remain nearly stationary, but could wave just a little northward tomorrow afternoon. The forecast will remain dry today, but some isolated pops are possible in the far south CWA tomorrow...nearest to the old boundary. Temps will remain seasonable. Dewpoints will be very pleasant today and average in the lower to middle 50s. Low level moisture will begin to increase slightly tomorrow and dewpoints will creep upwards into upper 50s to middle 60s. NListemaa && .LONG TERM... (Wednesday night through Monday) Issued at 331 AM EDT Tue Jun 11 2024 Not much change from previous discussion. Models continue to have trouble locking in on the evolution of the Gulf low, though models continue to develop the low anyways. Moisture within the low will be high (PWATs 2.5+"). The question is where the low will go. As of now, models have shifted eastward with a stronger Bermuda high in the Atlantic. This drives the moisture more into the Mississippi Delta region, however this is likely to change. PWATs over GA also look to be difficult to forecast. This is due to the easterly flow from the Bermuda high, which has the potential to keep PWATs as low as 1". Given the large spread in potential PWATs, will maintain at least some PoPs across the southern CWA for much of the extended outlook and particularly in the afternoon. Further discussion on thunderstorms can be seen in previous AFDs, but in short expect showers and thunderstorms possible everyday in the southern CWA and this possibly spreading to include North GA in later forecast iterations. Temperatures will be HOT. Expect the hottest conditions so far this year with a general increase in highs through Saturday before we cool off a little bit. Highs by the weekend will be in the mid to upper 90s across the entire CWA. Dewpoints in the upper 60s and lower 70s will mean that heat could be a threat, particularly to the most vulnerable populations (elderly, pets, etc.). SM && .AVIATION... (18Z TAFS) Issued at 128 PM EDT Tue Jun 11 2024 Wind shift to the east still expected overnight tonight. Winds could go calm before transitioning over to the east side near daybreak but will keep the 05z shift in the ATL for now as it appears to be a pivot point from N to NNE. Winds overall will be very light after sunset today...5kts or less at all sites. Moisture increases at 250 after 06z per cross sections and at 010 late AM on Wednesday. Expect mid and high cloud cover to impact all taf sites during the day tomorrow. //ATL Confidence...18Z Update... High confidence all elements 30 && .PRELIMINARY POINT TEMPS/POPS... Athens 62 88 66 90 / 0 0 0 10 Atlanta 65 89 70 91 / 0 0 0 10 Blairsville 57 82 61 85 / 0 0 0 10 Cartersville 58 89 66 92 / 0 0 0 10 Columbus 66 92 71 94 / 0 10 0 20 Gainesville 63 87 67 89 / 0 0 0 10 Macon 65 92 69 93 / 0 10 0 20 Rome 58 90 65 94 / 0 0 0 0 Peachtree City 62 90 67 92 / 0 10 0 10 Vidalia 70 92 70 92 / 0 20 10 30 && .FFC WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...30 LONG TERM....01 AVIATION...30