Special Weather Statement, NWS Atlanta, GA

Area Forecast Discussion
National Weather Service Peachtree City GA
Issued by National Weather Service Birmingham AL
657 AM EDT Wed Apr 23 2025

...New 12Z Aviation Discussion...

.SHORT TERM...
(Today through Thursday)
Issued at 456 AM EDT Wed Apr 23 2025

Key Messages:

  -Patchy dense fog along and north of I-85 through this morning
   with visibilities down to 1/4 mile.

  -Showers and thunderstorm expected this afternoon across north and
   central Georgia. Marginal risk over central and southeast
   Georgia.

For this morning, have seen visibility values as low at 1/4 SM along
and north of I-85. Although patchy in nature, this has led to the
issuance of an SPS through 9 am this morning. Low clouds are also in
place across much of this area. As the morning goes on should see
the fog begin to dissipate but the lower overcast skies will likely
remain until the afternoon. For this afternoon should begin to see
showers begin this afternoon as we continue this summer like
pattern. Taking a look at the dynamics, southeast central Georgia is
the focus for the highest CAPE values at ~1200-1400 J/kg and thus
SPC has appropriately highlighted this area with a marginal risk for
severe weather. There will be an axis of CAPE over north Georgia as
well so would not be surprised to see storms over much of north and
central Georgia although they will likely be scattered in nature.
With almost non-existent shear these storms will likely be popcorn
in nature with them going up then and down. Hail and wind will be
the main threats today. Overnight tomorrow should see light winds
and the rain dissipate resulting in another chance for patchy fog in
areas where rain occurred during this afternoon.

Hernandez

&&

.LONG TERM...
(Thursday night through Tuesday)
Issued at 456 AM EDT Wed Apr 23 2025

Our summer like pattern continues through the beginning of the
long term starting on Friday. Flow aloft remains relatively weak
Friday, though convectively induced wave does look to sweep by
quickly that may enhance afternoon convection chances within our
warm, moist surface airmass. Saturday, stronger upper level wave
will dig into the Midwest and push surface high pressure to the
north of the area. Thunderstorms will still be possible during the
afternoon as subtropical airmass hangs in place. On Saturday
night, weak front should push into the CWA from the north and
northeast, becoming more of a wedge like front as the surface high
slides over the Appalachians to the north. Some diurnal
thunderstorm chances will be possible on Sunday with this. By
Monday, this should finally push our surface moisture out, putting
an end to our diurnally driven convection chances for a few days.
Next system will bring moisture back into the CWA on Wednesday.

Hard to "pinpoint" any day that might have any elevated severe
chances. Surface instability likely remains one of the biggest
elements of uncertainty, as cloud cover that will act a limiter will
be driven by remnant convection and showers from each previous
day, and the upper levels will be increasingly worked over by
rounds of rain and convection. Saturday may have some chances
given shear will be on the increase and frontal forcing may
provide for additional lift, but uncertainty remains very high.

Temperatures remain warm through the long term. Low to mid 80s
will be in place Friday and Saturday. High Sunday and Monday may
be a few degrees cooler than previous days, before temperatures
begin to warm back up ahead of the next incoming system.

Lusk

&&

.AVIATION...
(12Z TAFS)
Issued at 655 AM EDT Wed Apr 23 2025

Low clouds and visibilities across north Georgia are beginning to
dissipate but patchy fog conditions are possible for the next hour
or two. Overall seeing a slightly later timing to the precip and
-TSRA with starting time around 21z now. OVernight tomorrow should
 see low clouds again with light winds out of the east.

//ATL Confidence...12Z Update...
Medium confidence on all elements.

Hernandez

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          79  60  77  61 /  50  50  80  50
Atlanta         80  62  79  64 /  60  40  80  40
Blairsville     75  56  72  58 /  60  40  80  50
Cartersville    80  59  79  61 /  50  30  70  40
Columbus        84  62  86  63 /  30  20  50  30
Gainesville     77  61  75  62 /  50  40  70  50
Macon           84  62  82  62 /  50  50  70  40
Rome            80  59  79  61 /  50  30  70  40
Peachtree City  81  59  81  61 /  60  40  80  40
Vidalia         86  64  85  62 /  60  40  50  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
None.
&&

SHORT TERM...Hernandez
LONG TERM....Lusk
AVIATION...Hernandez

Hazardous Weather Outlook
National Weather Service Peachtree City GA
Issued by National Weather Service Birmingham AL
450 AM EDT Wed Apr 23 2025

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-240900-
Baldwin-Banks-Barrow-Bartow-Bibb-Bleckley-Butts-Carroll-Catoosa-
Chattahoochee-Chattooga-Cherokee-Clarke-Clayton-Cobb-Coweta-
Crawford-Crisp-Dade-Dawson-DeKalb-Dodge-Dooly-Douglas-Emanuel-
Fannin-Fayette-Floyd-Forsyth-Gilmer-Glascock-Gordon-Greene-
Gwinnett-Hall-Hancock-Haralson-Harris-Heard-Henry-Houston-Jackson-
Jasper-Jefferson-Johnson-Jones-Lamar-Laurens-Lumpkin-Macon-
Madison-Marion-Meriwether-Monroe-Montgomery-Morgan-Murray-
Muscogee-Newton-North Fulton-Oconee-Oglethorpe-Paulding-Peach-
Pickens-Pike-Polk-Pulaski-Putnam-Rockdale-Schley-South Fulton-
Spalding-Stewart-Sumter-Talbot-Taliaferro-Taylor-Telfair-Toombs-
Towns-Treutlen-Troup-Twiggs-Union-Upson-Walker-Walton-Warren-
Washington-Webster-Wheeler-White-Whitfield-Wilcox-Wilkes-
Wilkinson-
450 AM EDT Wed Apr 23 2025

This Hazardous Weather Outlook is for north and central Georgia.

.DAY ONE...Today and Tonight...

Scattered thunderstorms will be possible this afternoon and
evening across portions of north Georgia. A Marginal Risk (Level 1
of 5) is in effect this afternoon for portions of east central
Georgia. The primary risks will be isolated damaging winds gusts
and a storm or two capable of hail up to an inch in diameter.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

Isolated thunderstorms are forecast for Thursday through Sunday
across portions of north and central Georgia, with highest chances
across north Georgia. Widespread severe storms are not expected
at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

Special Weather Statement
National Weather Service Peachtree City GA
Issued by National Weather Service Birmingham AL
121 PM EDT Wed Apr 23 2025

GAZ044-053-054-231745-
Fayette GA-Coweta GA-South Fulton GA-
121 PM EDT Wed Apr 23 2025

...A strong thunderstorm will impact portions of northwestern Fayette
and northeastern Coweta Counties through 145 PM EDT
...

At 120 PM EDT, a strong thunderstorm was over Thomas Crossroads, or
near Newnan, moving northeast at 10 mph.

HAZARD...Up to 40 mph wind, pea sized hail and frequent cloud to
         ground lightning.

SOURCE...Radar indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of
         light, unsecured objects.

Locations impacted include...
Cannongate, Sandy Creek, Tyrone, Thomas Crossroads, Peachtree City,
Fairburn, Newnan, and Fayetteville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3333 8472 3341 8477 3355 8459 3341 8449
TIME...MOT...LOC 1720Z 239DEG 8KT 3340 8466

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH