Flash Flood Warning 29, NWS Atlanta, GA

313 
WGUS72 KFFC 171844
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
244 PM EDT Fri Jul 17 2026

GAC111-123-172045-
/O.CON.KFFC.FF.W.0029.000000T0000Z-260717T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fannin GA-Gilmer GA-
244 PM EDT Fri Jul 17 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM EDT THIS
AFTERNOON FOR CENTRAL FANNIN AND GILMER COUNTIES...

At 244 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 4 inches of rain have
fallen. Additional rainfall amounts up to 1 inch are possible in the
warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Ellijay, East Ellijay, Cherry Log, Roy, Cartecay, Pisgah,
  Mountaintown, Stover Creek Shelter and Springer Mountain Shelter.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3489 8462 3493 8458 3466 8415 3461 8419
      3462 8420 3460 8422 3460 8425 3457 8426
      3459 8442 3471 8458 3477 8461 3482 8458
      3486 8462

FLASH FLOOD...RADAR INDICATED

$$

Culver

907 
WGUS72 KFFC 172039
FFSFFC

Flash Flood Statement
National Weather Service Peachtree City GA
439 PM EDT Fri Jul 17 2026

GAC111-123-172049-
/O.CAN.KFFC.FF.W.0029.000000T0000Z-260717T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fannin GA-Gilmer GA-
439 PM EDT Fri Jul 17 2026

...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL FANNIN AND GILMER
COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.

&&

LAT...LON 3489 8462 3493 8458 3466 8415 3461 8419
      3462 8420 3460 8422 3460 8425 3457 8426
      3459 8442 3471 8458 3477 8461 3482 8458
      3486 8462

$$

Area Forecast Discussion
National Weather Service Peachtree City GA
613 AM EDT Fri Jul 17 2026

...New 12Z Aviation Discussion...

.KEY MESSAGES...

  - A hot and muggy airmass remains in place, leading to heat
    index values reaching Heat Advisory criteria in portions of
    east central Georgia this afternoon.

  - Scattered afternoon showers and thunderstorms will continue
    to bring the risk for locally heavy rainfall, frequent
    lightning, and gusty winds.

  - Hot and humid conditions will persist into next week with
    triple digit heat index values remaining likely for many
    areas.

&&

.SHORT TERM...
(Today through Saturday)
Issued at 313 AM EDT Fri Jul 17 2026

A very humid, tropical airmass remains entrenched across the area,
characterized by dewpoints in the mid 70s and PWATs above 2" (which,
based on sounding climatology, puts us near or above the daily
observed maximums for mid July based on the 2.20" on the 00Z FFC
sounding). All this is to say, it will continue feeling like a
sauna, especially when combined with afternoon highs in the low-
to-mid 90s for most. Forecast maximum heat index readings breach
105-108 for a decent portion of east-central Georgia this
afternoon, and a Heat Advisory is in effect for these locations as
a result.

While broad ridging does remain in place across the region, strong
diurnal heating as well as a weakness in the ridge across the area
will result in the development of scattered afternoon and evening
convection. These showers and thunderstorms will bring some relief
to the heat for some this afternoon. Given forecast MLCAPE in excess
of 2000 J/kg, a few storms could reach severe limits, presenting a
risk primarily for locally damaging wind gusts. Locally heavy
rainfall can also be expected within the very moist environment.

Saturday will bring a very similar forecast with no airmass change.
The weak midlevel low (with a 20% "low" formation chance outlooked
by NHC) currently over the northeast Gulf will remain in place,
while a trough will begin to dig to our north and northeast. As
such, additional scattered diurnally-enhanced convection is a good
bet on Saturday afternoon. Outside of the cooling influence of
any these scattered storms, heat index values will again flirt
with or reach Heat Advisory criteria in some areas Saturday.

&&

.LONG TERM...
(Saturday night through Thursday)
Issued at 313 AM EDT Fri Jul 17 2026

Weather through the long term remains warm with conditional
thunderstorms each day dependent on the evolution/movement of a few
key features.

Still watching the interaction and phasing of a weakly developing
Gulf low and upper level trough from the Great Lakes/Ohio Valley.
The NHC continues to highlight the northeast Gulf, northern FL
panhandle, and GA/SC coast with a 20% chance of TC development over
the next 7 days. This system has yet to form yet however this system
will most likely remain weak and drift to the northeast. By Sunday,
the weak low gets picked up by a descending Great Lakes trough which,
while potentially assisting in its development, will likely carry it
into the Atlantic. As the system moves to our southeast, winds out
of the northeast around the low could drive drier (not cooler) air
across the state. This would impinge on daily thunderstorm chances
early next week. As the system moves further away the summer time
diurnally driven PoPs return in normal fashion.

In short, a stronger Gulf low will result in drier conditions to
start next week (unless a significant northward shift occurs),
before conditions return to normal diurnally driven summertime
thunderstorms.

Temperatures through the period won't see a significant shift,
remaining in the upper 80s to low 90s across north and central GA.

&&

.AVIATION...
(12Z TAFS)
Issued at 610 AM EDT Fri Jul 17 2026

VFR conditions are expected to prevail through the TAF period
outside of sct SHRA/TSRA, which will peak in coverage 19-00Z.
Otherwise, expect afternoon sct cu 3.5 - 6 kft. Winds will remain
NW at 6-11 kts.

//ATL Confidence...12Z Update...
High confidence.

RW

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          95  74  93  74 /  40  10  30  10
Atlanta         91  75  91  75 /  50  10  30  10
Blairsville     86  68  85  68 /  70  10  50  10
Cartersville    92  73  92  74 /  50  10  30  10
Columbus        93  75  93  75 /  30  10  50  30
Gainesville     93  74  91  75 /  60  10  30  10
Macon           93  74  93  74 /  30  20  40  40
Rome            91  72  91  73 /  40  10  30  10
Peachtree City  91  73  91  73 /  40  10  40  20
Vidalia         96  75  95  74 /  30  30  50  40

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from noon today to 8 PM EDT this evening for
GAZ024-025-027-035>039-047>051-059>062-072>076-084>086-097-098-
111>113.

&&

SHORT TERM...RW
LONG TERM....SM
AVIATION...RW

Hazardous Weather Outlook
National Weather Service Peachtree City GA
433 AM EDT Fri Jul 17 2026

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-180845-
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-
433 AM EDT Fri Jul 17 2026

This Hazardous Weather Outlook is for north and central Georgia.

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

Scattered thunderstorms this afternoon and evening will be capable
of producing gusty to locally damaging winds as well as locally
heavy rainfall and frequent lightning.

A Heat Advisory is in effect through this evening for much of east
central Georgia where heat index values in excess of 105 degrees
are expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday...

Scattered to numerous afternoon thunderstorms are likely Saturday
and Sunday. Any storms that form will be capable of producing
gusty winds, frequent lightning, and locally heavy rainfall.
Isolated to widely scattered storms will remain possible for parts
of the area Monday through Thursday.

Heat concerns will linger through next week as maximum heat index
values are expected to rise into the triple digits for many areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

Preliminary Local Storm Report
National Weather Service Peachtree City GA
859 AM EDT Fri Jul 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0610 PM     Tstm Wnd Dmg     2 SSE Lilburn           33.87N 84.13W
07/16/2026                   Gwinnett           GA   Utility Company

            Utility company reports a large tree and
            power lines down near the intersection of
            Lake Front Drive and Lilburn Stone Mountain
            Road.

&&

Preliminary Local Storm Report
National Weather Service Peachtree City GA
908 AM EDT Fri Jul 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0635 PM     Tstm Wnd Dmg     2 SSE Mountain Park     33.81N 84.11W
07/16/2026                   Gwinnett           GA   Public

            Public reports a tree and power lines down
            near the intersection of Dry Fork Creek
            Terrace and Broad Creek Drive.

&&

Preliminary Local Storm Report
National Weather Service Peachtree City GA
1001 AM EDT Fri Jul 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0445 PM     Tstm Wnd Dmg     1 NW Gillsville         34.32N 83.64W
07/16/2026                   Banks              GA   Public

            Public reports large tree down in yard in
            the 900 block of Bell Road.

&&

Special Weather Statement
National Weather Service Peachtree City GA
120 PM EDT Fri Jul 17 2026

GAZ007-171745-
Gilmer GA-
120 PM EDT Fri Jul 17 2026

...A strong thunderstorm will impact portions of northwestern Gilmer
County through 145 PM EDT...

At 120 PM EDT, a strong thunderstorm was over Mountaintown, or 7
miles northwest of Ellijay. This storm was nearly stationary.

HAZARD...40 to 50 mph wind, frequent cloud to ground lightning and
         heavy rain.

SOURCE...Radar indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of
         light, unsecured objects. Heavy rain may cause temporary
         street flooding especially in poor drainage areas.

Locations impacted include...
Ellijay and Mountaintown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder, you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

&&

LAT...LON 3476 8435 3467 8456 3480 8461 3481 8459
      3482 8459 3483 8458 3484 8450
TIME...MOT...LOC 1720Z 335DEG 3KT 3479 8455

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Culver

Special Weather Statement
National Weather Service Peachtree City GA
127 PM EDT Fri Jul 17 2026

GAZ007-171800-
Gilmer GA-
127 PM EDT Fri Jul 17 2026

...A strong thunderstorm will impact portions of southeastern Gilmer
County through 200 PM EDT...

At 127 PM EDT, a strong thunderstorm was near Roy, or 11 miles east
of Ellijay. This storm was nearly stationary.

HAZARD...40 to 50 mph wind, up to penny sized hail, frequent cloud
         to ground lightning and heavy rain.

SOURCE...Radar indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of
         light, unsecured objects. Heavy rain may cause temporary
         street flooding especially in poor drainage areas.

Locations impacted include...
Springer Mountain Shelter, Cartecay, Pisgah, and Roy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder, you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

&&

LAT...LON 3473 8426 3472 8425 3467 8425 3467 8424
      3463 8419 3460 8422 3460 8426 3457 8426
      3457 8429 3458 8433 3458 8434 3457 8434
      3466 8445 3474 8427
TIME...MOT...LOC 1727Z 155DEG 3KT 3463 8429

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Culver