River Flood Warning 25, NWS Atlanta, GA

684 
WGUS82 KFFC 250118
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
918 PM EDT Fri Jul 24 2026

...The Flood Warning continues for the following rivers in Georgia...

  Big Creek near Alpharetta affecting Forsyth and Fulton Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at weather.gov/atlanta.

&&

GAC117-121-251330-
/O.CON.KFFC.FL.W.0025.000000T0000Z-260726T0100Z/
/APHG1.1.ER.260724T0530Z.260725T1800Z.260726T1727Z.NO/
918 PM EDT Fri Jul 24 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL SATURDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Big Creek near Alpharetta.

* WHEN...Until Saturday evening.

* IMPACTS...At 10 feet, Minor flooding expands along the creek from
  near Cumming to Alpharetta and Roswell. Backyards of homes off
  Seale Drive and Gunter Court and portions of the Golf of Georgia
  are under a foot of water. The Big Creek Greenway experiences
  significant flooding up to 4 feet deep with closure of the paths.
  This especially occurs upstream and downstream from the gage on
  Kimball Bridge Road and Rock Mill Park. A large portion of the YMCA
  Campground off Preston Ridge Road will be under a two feet of
  water.

* ADDITIONAL DETAILS...
  - At 8:45 PM EDT Friday the stage was 9.3 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 8:45 PM EDT Friday was 9.3 feet.
  - Forecast...The river is expected to rise to a crest of 10 feet
    early tomorrow afternoon. It will then fall below flood stage
    early Sunday afternoon.
  - Flood stage is 7 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427


$$

046 
WGUS82 KFFC 250925
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
525 AM EDT Sat Jul 25 2026

...The Flood Warning continues for the following rivers in Georgia...

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at weather.gov/atlanta.

&&

GAC117-121-252130-
/O.CON.KFFC.FL.W.0025.000000T0000Z-260726T0100Z/
/APHG1.1.ER.260724T0530Z.260725T0000Z.260726T1612Z.NO/
525 AM EDT Sat Jul 25 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL THIS EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Big Creek near Alpharetta.

* WHEN...Until this evening.

* IMPACTS...At 9.0 feet, Minor flooding expands along the creek from
  near Cumming to Alpharetta and Roswell. Backyards of homes off
  Seale Drive and Gunter Court and portions of the Golf of Georgia
  begin to flood. The Big Creek Greenway experiences significant
  flooding up to 3 feet deep...which results in closure of most of
  the paths. This especially occurs upstream and downstream from the
  gage on Kimball Bridge Road and Rock Mill Park. A large portion of
  the YMCA Campground off Preston Ridge Road will be under a foot of
  water.

* ADDITIONAL DETAILS...
  - At 4:45 AM EDT Saturday the stage was 8.7 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 4:45 AM EDT Saturday was 9.3 feet.
  - Forecast...The river is expected to fall below flood stage early
    tomorrow afternoon and continue falling to 2.0 feet early
    Thursday morning.
  - Flood stage is 7.0 feet.
  - Flood History...This crest compares to a previous crest of 8.8
    feet on 04/14/2020.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427


$$

146 
WGUS82 KFFC 251320
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
920 AM EDT Sat Jul 25 2026

...The Flood Warning is extended for the following rivers in
Georgia...

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Caution is urged when walking near riverbanks.

Additional information is available at weather.gov/atlanta.

&&

GAC117-121-260130-
/O.EXT.KFFC.FL.W.0025.000000T0000Z-260726T2010Z/
/APHG1.1.ER.260724T0530Z.260725T0000Z.260726T1410Z.NO/
920 AM EDT Sat Jul 25 2026

...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Big Creek near Alpharetta.

* WHEN...Until Sunday afternoon.

* IMPACTS...At 9.0 feet, Minor flooding expands along the creek from
  near Cumming to Alpharetta and Roswell. Backyards of homes off
  Seale Drive and Gunter Court and portions of the Golf of Georgia
  begin to flood. The Big Creek Greenway experiences significant
  flooding up to 3 feet deep...which results in closure of most of
  the paths. This especially occurs upstream and downstream from the
  gage on Kimball Bridge Road and Rock Mill Park. A large portion of
  the YMCA Campground off Preston Ridge Road will be under a foot of
  water.

* ADDITIONAL DETAILS...
  - At 8:45 AM EDT Saturday the stage was 8.6 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 8:45 AM EDT Saturday was 9.3 feet.
  - Forecast...The river is expected to fall below flood stage late
    tomorrow morning and continue falling to 1.9 feet Thursday
    morning.
  - Flood stage is 7.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427


$$

005 
WGUS82 KFFC 260044
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
844 PM EDT Sat Jul 25 2026

...The Flood Warning continues for the following rivers in Georgia...

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Caution is urged when walking near riverbanks.

Additional information is available at weather.gov/atlanta.

&&

GAC117-121-262000-
/O.CON.KFFC.FL.W.0025.000000T0000Z-260726T2010Z/
/APHG1.1.ER.260724T0530Z.260725T0000Z.260726T1410Z.NO/
844 PM EDT Sat Jul 25 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Big Creek near Alpharetta.

* WHEN...Until Sunday afternoon.

* IMPACTS...At 8.0 feet, Minor flooding continues to expand further
  into the woodlands and fields along the creek from near Cumming in
  south Forsyth County to Alpharetta and Roswell in north Fulton
  County. Additional portions of The Big Creek Greenway have minor
  flooding with 1 to 2 feet of water. Most of the walking and biking
  paths will be closed...especially upstream and downstream from the
  gage on Kimball Bridge Road and near Rock Mill Park. Portions of
  the YMCA Campground off Preston Ridge Road will flood.

* ADDITIONAL DETAILS...
  - At 7:45 PM EDT Saturday the stage was 8.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 7:45 PM EDT Saturday was 9.3 feet.
  - Forecast...The river is expected to fall below flood stage by
    Sunday afternoon and continue to slowly fall through Monday.
  - Flood stage is 7.0 feet.
  - Flood History...This crest compares to a previous crest of 8.4
    feet on 01/20/2001.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427


$$

Culver

943 
WGUS82 KFFC 261005
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
605 AM EDT Sun Jul 26 2026

...The Flood Warning is cancelled for the following rivers in
Georgia...

  Big Creek near Alpharetta affecting Forsyth and Fulton Counties.

GAC117-121-261115-
/O.CAN.KFFC.FL.W.0025.000000T0000Z-260726T1005Z/
/APHG1.1.ER.260724T0530Z.260725T0000Z.260726T1200Z.NO/
605 AM EDT Sun Jul 26 2026

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Big Creek near Alpharetta.

* ADDITIONAL DETAILS...
  - At 5:45 AM EDT Sunday the stage was 4.8 feet.
  - Forecast...No further flooding is forecast.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427


$$

Area Forecast Discussion
National Weather Service Peachtree City GA
552 AM EDT Fri Jul 24 2026

...New 06Z Aviation Discussion...

.KEY MESSAGES...

  - A Flood Watch remains in effect through late Friday evening
    across portions of north Georgia.

  - The threat for heavy rainfall and flash flooding will
    remain elevated across north Georgia through Saturday in the
    presence of a stalled front.

  - Heat concerns rebound in earnest next week with an upward
    trend in temperatures and heat indices by Monday.

&&

.SHORT TERM...
(Today through Saturday)
Issued at 525 AM EDT Fri Jul 24 2026

A flood watch remains in effect for northern Georgia until early
Saturday morning. A stationary front will provide a source of lift
until Saturday afternoon along and north of a line from I-20. Rain
amounts between 1-3" are expected though a few isolated areas may
see amounts exceeding 4". The watch is largely dependent on how far
south the front sinks and may need to expand south over the next 12
hours. So far the area of heaviest rain has fallen along a line from
Marietta to Athens, and as a result we'll continue to monitor this
area closely for a flooding threat.

WPC maintains a slight ERO risk for the area, and continued
coordination with them will help us determine whether or not to
extend the flood watch into Saturday. We'll have to hold on until a
cold front clears the boundary out on Sunday.

Temperatures should be moderated during this time period to the 80s
and low 90s, with the highest temps across the southern portion of
the CWA. Little victories.

&&

.LONG TERM...
(Saturday night through Thursday)
Issued at 525 AM EDT Fri Jul 24 2026

The overall pattern as we move into the new workweek will see a
broad and deep high pressure system remain parked over the southern
Plains and a deep layer trough dominate the Mid-Atlantic and
Northeastern states.  This pattern will remain in place through the
end of the week.  This will result in a sustained northerly flow
pattern across the forecast area.  As this northerly flow regime
takes hold, drier air will advect into the mid and upper levels, and
this will help push PWATS down to around 1.6 to 1.7 inches from
Monday through Wednesday.  These values are near average for this
time of year, and indicate that enough moisture will remain in place
in the low levels to support some isolated convective development
each afternoon.  The threat of isolated convective development,
generally once the convective temperature in the mid 90s is reached
in the late afternoon and early evening hours, is further supported
by mid-level lapse rates in excess of 6.5 C/KM and MLCAPE in excess
of 1500 J/KG each afternoon. One of the bigger concerns with these
isolated convective cells is the potential for strong to
occasionally severe thunderstorm wind gusts occurring as the cells
entrain the dry mid-level air into their updrafts.  Evaporative
cooling within the updraft could occur, and this could support a few
microburst events each day as the cooler and heavier air exceeds the
updraft strength resulting in thunderstorm collapse.  DCAPE values
of 1100 to 1300 J/KG support this concern.

Before the convection develops, temperatures will climb into the mid
90s south of the fall line and into the upper 80s and lower 90s
north of the fall line in the North Georgia mountains.  Conditions
will remain very humid in the low levels, so heat index values will
easily climb to 100 to 103 on Monday and then rise further to 103 to
108 on Tuesday and Wednesday from I-85 southward, including metro
Atlanta.  Heat advisories will likely be needed as we move into
Tuesday and Wednesday.

All of the medium range guidance is in good agreement that
reinforcing and much stronger northern stream trough will dig into
the eastern seaboard on Thursday and Friday.  This will drive a very
strong front for late July through the region Wednesday evening into
Wednesday night.  Behind the front, a very dry airmass as noted by
PWATS falling to around an inch, or near the 10th percentile for
this time of year, will move into the area.  This will effectively
kill off any rain chances due to a lack of moisture and instability.
Although temperatures will remain near average, heat index values
will fall back below advisory levels and range closer to 100 degrees
on Thursday and Friday.  Overnight lows may also feel almost
pleasant as readings dip into the 60s in the mountains and lower 70s
from Atlanta southward.

&&

.AVIATION...
(12Z TAFS)
Issued at 548 AM EDT Fri Jul 24 2026

SHRA remains in the vicinity this morning, and will continue
through the TAF cycle. Rain will become prevailing after 15Z with
a chance for TSRA between 17-22Z. SCT MVFR cigs will continue with
brief periods of IFR possible through 18Z. Winds will be SSW at
less than 5kts.

//ATL Confidence...06Z Update...

Medium on IFR Cigs
High on all other elements.

Vaughn

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          85  71  87  71 /  80  60  20  10
Atlanta         87  73  87  73 /  90  30  40  20
Blairsville     80  66  81  66 /  90  50  20  20
Cartersville    86  72  87  72 /  90  30  30  30
Columbus        94  76  91  75 /  40  20  50  40
Gainesville     83  72  86  72 /  90  50  30  10
Macon           93  74  91  73 /  40  20  50  20
Rome            86  71  86  71 /  90  20  40  50
Peachtree City  88  72  88  72 /  80  20  50  30
Vidalia         97  75  93  74 /  20  20  50  10

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Flood Watch through this evening for GAZ001>009-011>016-019>024-
030.

&&

SHORT TERM...Vaughn
LONG TERM....Vaughn
AVIATION...Vaughn

Hazardous Weather Outlook
National Weather Service Peachtree City GA
551 AM EDT Fri Jul 24 2026

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-251000-
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-
551 AM EDT Fri Jul 24 2026

This Hazardous Weather Outlook is for north and central Georgia.

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

A Flood Watch remains in effect for portions of north Georgia.
Increased coverage of showers and thunderstorms across mainly
North GA may bring locally heavy rainfall and an isolated risk of
flash flooding today.

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

Increased coverage of showers and thunderstorms are expected
through Saturday. Heavy rainfall could bring the risk for
localized flash flooding. Frequent lightning and gusty winds can
also be expected in the strongest storms.

Heat index values return to the triple digits for many areas
early next week. A heat advisory may be necessary for a large
portion of the area Monday and Tuesday if trends continue.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested but spotters are encouraged
to submit reports of severe weather through the web by going to
weather.gov/atlanta.

Special Weather Statement
National Weather Service Peachtree City GA
916 AM EDT Fri Jul 24 2026

GAZ014-022>025-241400-
Banks GA-Hall GA-Jackson GA-Dawson GA-Forsyth GA-
916 AM EDT Fri Jul 24 2026

...A strong thunderstorm will impact portions of northeastern
Forsyth, western Banks, southeastern Dawson, Hall and Jackson
Counties through 1000 AM EDT...

At 915 AM EDT, a strong thunderstorm was over Oakwood, or near
Gainesville, moving east at 30 mph.

HAZARD...Heavy rain.

SOURCE...Radar indicated.

IMPACT...Heavy rain may cause temporary street flooding especially
         in poor drainage areas.

Locations impacted include...
Gainesville, Jefferson, Commerce, Homer, Buford, Braselton, Flowery
Branch, Oakwood, Lula, Maysville, Arcade, Nicholson, Pendergrass,
Gillsville, Talmo, Rest Haven, Candler, Murrayville, Road
Atlanta-Lanier Speedway, and Hollingsworth.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should slow down and be prepared for possible loss of
control due to hydroplaning.

&&

LAT...LON 3448 8348 3406 8343 3412 8381 3413 8382
      3412 8383 3414 8399 3416 8405 3442 8398
      3447 8364 3443 8361 3448 8356
TIME...MOT...LOC 1315Z 266DEG 25KT 3424 8387

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH