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Marine Weather and Tide Forecast for Acworth, GA

June 25, 2024 2:25 PM EDT (18:25 UTC) Change Location
Sunrise 6:27 AM   Sunset 8:55 PM
Moonrise 11:11 PM   Moonset 9:06 AM 
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7 Day Forecast for Marine Location Near Acworth, GA
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Area Discussion for - Peachtree City, GA
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708 FXUS62 KFFC 251748 AFDFFC

Area Forecast Discussion National Weather Service Peachtree City GA 148 PM EDT Tue Jun 25 2024

New 18Z Aviation Discussion

(Today through Wednesday)
Issued at 423 AM EDT Tue Jun 25 2024

At a glance:

- Unseasonable heat continues

- Clear and mostly dry through Wednesday

For today and the better part of the day Wednesday, north and central Georgia will be situated under a relative lull in our presiding flow pattern, with exiting troughing resulting in weakly northwesterly flow at the mid-levels. Frontal progression has stalled out along/just south of the CWA border in south central Georgia, and with even drier air having since moved in across the area, expect any chances for afternoon thunderstorms today to be focused in our far southeastern tier -- in closest proximity to residual frontal forcing. Unhampered warming under sunny skies will allow temperatures to rebound into the upper-90s areawide (apart from northeast Georgia, relegated to the mid-80s to near 90), with the lower triple digits possible once again for areas along and south of a line extending from Columbus to Macon. What continues to be our saving grace from truly oppressive heat will be strong mixing and climatologically-low afternoon dewpoints (in the upper-50s to lower-60s; between the 10th and 25th percentile per SPC`s Sounding Climatology). As a result, peak afternoon heat index values will be within a degree or two of actual temperatures, and perhaps even slightly "cooler" than actual highs this afternoon. Lows will fall into the upper-60s to lower-70s.

Beginning midday Wednesday, a shortwave rounding the base of a broader mid-level trough lifting across the Great Lakes will approach from the northwest. Moisture will begin to gradually rebound ahead of it, resulting in pockets of (very) slightly higher humidity through the afternoon, and increased -- but still low-end (15-25%) -- chances for isolated thunderstorms. With highs once again forecast to surge into the upper-90s to lower-100s, will need to keep a close eye on our heat index values across our far southeastern tier, as they may approach or exceed Heat Advisory criteria.


(Wednesday night through Monday)
Issued at 423 AM EDT Tue Jun 25 2024

As the extended period begins on Wednesday night, a longwave trough will be extending from the eastern Great Lakes into the Lower Mississippi River Valley. Scattered showers and thunderstorms will be advancing into north Georgia ahead of this trough and an associated frontal boundary. Precip chances will spread southeastward overnight and into Thursday as the weakening frontal boundary sinks southward through the forecast area. Rain chances will be highest in the afternoon, when temperatures ranging from the low 90s in west Georgia to the upper 90s in east-central Georgia and in the upper 60s to low 70s will combine for strong instability.
This instability will lend itself for diurnal enhancement of showers and thunderstorms, and thus PoPs are forecast to range from 40-60% in the afternoon. The frontal boundary is anticipated to stall and wash out by the afternoon, so there will be little in the way of shear for the afternoon storms to work with. While the threat for organized severe weather will be low, a few storms may nonetheless become strong and capable of producing frequent lightning, locally heavy rain, and gusty winds.

Southerly low-level flow will likely return to the area Friday into Saturday, which will promote increasing dewpoints, hot temperatures, and diurnally-driven afternoon thunderstorms through the weekend.
It will be important to keep an eye on temperatures through the later parts of the week into the weekend. Even with trending high temperatures down slightly to account for convective development, highs are still forecast to range from between 4-8 degrees above average for late June. Highs are mainly forecast to be in the mid to upper 90s from Friday through the end of the period, and heat indices are forecast to creep up into the triple digits in many locations, particularly in the southern half of the forecast area. Of particular interest will be some locations in central Georgia, which could see heat index values exceeding 105 this weekend, in which case Fire Danger Statements would be warranted.


(18Z TAFS)
Issued at 142 PM EDT Tue Jun 25 2024

VFR conditions to continue. SKC to FEW at 25kft could trickle in overnight. Winds currently vrb to light from NE. Winds drop to vrb to 00000KT with sunset. Winds SW with sunrise tomorrow morning, though will remain below 5KT through at least 15Z. Pds of VRB winds psbl when speeds drop below 4kts.

//ATL Confidence
18Z Update
High all elements.


Athens 71 98 74 95 / 0 10 10 40 Atlanta 74 99 76 94 / 0 0 20 40 Blairsville 67 91 67 88 / 0 10 30 60 Cartersville 70 99 71 94 / 0 10 30 50 Columbus 73 101 75 94 / 0 10 20 50 Gainesville 71 96 74 93 / 0 0 20 50 Macon 71 101 74 96 / 0 10 10 50 Rome 69 99 74 94 / 0 10 40 50 Peachtree City 71 99 72 95 / 0 10 20 40 Vidalia 74 100 76 98 / 0 40 20 50


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