Alert archive / Georgia / Special Weather Statements in 2024

Special Weather Statement, NWS Atlanta, GA

July 23, 2024Clayton County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 23, 2024, 5:52 PM EDT for Clayton County, Georgia. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 23, 2024, 5:52 PM EDT (21:52 UTC)
Expired
Jul 23, 2024, 6:15 PM EDT
In force
23 min
Issued by
NWS Atlanta, GA
Hail
0.00 in
Wind
40

County Clayton County, GA

The radar

The Atlanta radar (KFFC), 38 km from the middle of the area, began a volume at 21:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 36 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2024-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 871 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2024-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
871 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
701 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this special weather statement went out at Jul 23, 2:32 PM EDT, 3 hours 20 minutes earlier.

Area forecast discussion, Jul 23, 2:32 PM EDT, 3 hours 20 minutes before
Area Forecast Discussion
National Weather Service Peachtree City GA
232 PM EDT Tue Jul 23 2024

...Afternoon Area Forecast Discussion...

.SHORT TERM...
(This afternoon through Wednesday)
Issued at 222 PM EDT Tue Jul 23 2024

Unsettled weather will remain the theme through Wednesday amid
persistent southwesterly flow and a weak stationary front stalled
across the region. Scattered showers and thunderstorms have begun
blossoming this afternoon with assistance from a weak shortwave
aloft and with analyzed SBCAPE of 2000-2500 J/kg across the area.
The primary concern with this activity through late this evening
will be locally heavy rainfall given PWAT values at or above 2"
(above the 90th percentile per sounding climatology for FFC). Weak
midlevel lapse rates will limit the severe threat today, though a
bit (~20-30 kts) of 0-6km bulk shear across north Georgia could
support a gusty wind threat. Shower and thunderstorm coverage is
expected to gradually wane through the overnight hours, but some
isolated activity could persist past midnight.

Wednesday will bring very similar conditions to today, though
convective coverage appears likely to be even more widespread. Deep
moisture will continue to be transported across the area amid
continued southwest flow aloft, while an additional weak disturbance
will provide an additional impetus for fairly widespread convection.
CAMs continue to support this notion, bringing widespread shower and
thunderstorm development Wednesday afternoon through late evening.
With "skinny" forecast CAPE profiles, heavy rainfall will continue
to be the primary concern within the persistent tropical airmass.
Localized flash flooding concerns could materialize, and WPC
introduced a "Slight" risk for excessive rainfall for much of the
CWA on Wednesday to highlight this risk.

Afternoon high temperatures on Wednesday will remain blunted by more
widespread clouds and convection, ranging from the near 80 in far
north Georgia to the low 90s in Middle Georgia.

RW

&&

.LONG TERM...
(Thursday morning through next Monday)
Issued at 222 PM EDT Tue Jul 23 2024

The upper-level pattern will change at the beginning of the long-
term period as persistent troughing breaks down while a ridge shifts
eastward across the northern tier of the CONUS. Weak upper-level
flow (not quite ridging, not quite troughing) and tropical moisture
(PWAT greater than 1.75") will continue to support generally slow-
moving scattered to numerous showers and storms across the CWA
through the period, with peaks in coverage generally each afternoon
and evening. Instability and precip-loading in downdrafts will be
enough to support frequent cloud-to-ground lightning and gusty to
damaging winds of 40-50 mph (respectively) with strong storms, and a
severe storm or two cannot be ruled out each day. In terms of
antecedent hydrologic conditions, soil moisture is quite high and
many gages on creeks, rivers, and streams are currently measuring
normal to above-normal stages. As a result, slow-moving, efficient
rainfall-producing storms and/or training could cause localized
flash flooding and/or rises on creeks, rivers, and streams. There
are differences among ensemble guidance regarding where the axis of
heaviest rainfall will occur. The GEFS depicts the greatest rainfall
totals in the northeast Georgia mountains and roughly along and
south of I-20, while the EPS depicts the greatest rainfall totals
along and north of I-20. Where the heaviest rainfall occurs each day
will be largely governed by smaller scale features, such as weak
upper-level disturbances and outflow boundaries, which make the QPF
a tad tricky.

Plentiful cloud cover will continue to moderate temperatures,
keeping highs generally in the 80s (with even cooler conditions in
the mountains). Lows will be in the upper 60s to lower 70s (again,
with cooler conditions in the mountains).

Martin

&&

.AVIATION...
(18Z TAFS)
Issued at 128 PM EDT Tue Jul 23 2024

Earlier patchy MVFR cigs have largely trended to VFR at this hour
with BKN cigs largely around 3.5-5 kft. Sct SHRA/TSRA will
continue to increase this afternoon with highest coverage expected
between 20-01Z. Areas of IFR cigs are possible mainly 08-14Z
Wednesday, though confidence in extent and area is not high.
Expect more widespread SHRA/TSRA Wednesday afternoon. Winds will
be primarily SW at speeds 3-6 kts, though light and vrb to near
calm overnight.

//ATL Confidence...18Z Update...
Medium confidence on morning cigs and SHRA/TSRA timing.
High confidence on winds.

RW

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          71  90  71  85 /  50  70  70  80
Atlanta         71  87  71  85 /  60  80  80  80
Blairsville     65  81  66  78 /  70  70  70  80
Cartersville    70  85  69  84 /  60  80  80  80
Columbus        74  91  73  88 /  50  80  70  80
Gainesville     71  87  71  83 /  60  80  80  80
Macon           72  92  72  88 /  30  80  70  80
Rome            71  84  70  84 /  60  80  80  80
Peachtree City  70  89  70  86 /  60  80  80  80
Vidalia         74  92  74  90 /  30  80  60  80

&&

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

SHORT TERM...RW
LONG TERM....Martin
AVIATION...RW
Hazardous weather outlook, Jul 23, 5:10 PM EDT, 42 minutes before
Hazardous Weather Outlook
National Weather Service Peachtree City GA
510 PM EDT Tue Jul 23 2024

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-242115-
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-
510 PM EDT Tue Jul 23 2024

This Hazardous Weather Outlook is for portions of North and Central Georgia.

.DAY ONE...Tonight...

Scattered to numerous thunderstorms are expected late this
afternoon and evening with the greatest coverage across north
Georgia. The strongest storms may produce frequent cloud-to-ground
lightning, gusty winds, and heavy rainfall. Localized flash
flooding is possible, especially across north Georgia.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Scattered to numerous thunderstorms, mainly in the afternoon and
evening, can be expected each day through Monday. Severe weather
is not anticipated, but localized flash flooding may occur.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

In the hours before

Local storm report, Jul 23, 4:12 PM EDT, 1 hour 40 minutes before
Preliminary Local Storm Report
National Weather Service Peachtree City GA
412 PM EDT Tue Jul 23 2024

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

0350 PM     Tstm Wnd Dmg     2 NW Good Hope          33.81N 83.63W
07/23/2024                   Walton             GA   Public

            Sub-severe report: small trees and limbs
            reported down near the intersection of
            Bearden Blvd and Luanne Way.

&&

TV
Special weather statement, Jul 23, 4:27 PM EDT, 1 hour 25 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
427 PM EDT Tue Jul 23 2024

GAZ024-025-027-232100-
Madison GA-Banks GA-Jackson GA-
427 PM EDT Tue Jul 23 2024

...A strong thunderstorm will impact portions of southeastern Banks,
northeastern Jackson and northwestern Madison Counties through 500 PM
EDT...

At 427 PM EDT, a strong thunderstorm was near Nicholson, or near
Commerce, moving northeast at 25 mph.

HAZARD...Up to 40 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...
Commerce, Nicholson, Ila, Pocataligo, Apple Valley, Neese, and Banks
Crossing.

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 3442 8338 3432 8339 3427 8334 3424 8334
      3426 8330 3425 8329 3424 8324 3425 8324
      3425 8320 3424 8318 3424 8317 3406 8331
      3416 8353 3445 8339
TIME...MOT...LOC 2027Z 208DEG 20KT 3416 8339

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
Special weather statement, Jul 23, 5:13 PM EDT, 39 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
513 PM EDT Tue Jul 23 2024

GAZ022-023-033-034-232145-
Hall GA-North Fulton GA-Forsyth GA-Gwinnett GA-
513 PM EDT Tue Jul 23 2024

...A strong thunderstorm will impact portions of central Forsyth,
northern Gwinnett and southwestern Hall Counties through 545 PM
EDT...

At 513 PM EDT, a strong thunderstorm was over Suwanee, or 8 miles
northeast of Peachtree Corners, moving northeast at 25 mph.

HAZARD...Up to 40 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...
Gainesville, Lawrenceville, Cumming, Peachtree Corners, Duluth, Sugar
Hill, Suwanee, Buford, Braselton, Flowery Branch, Oakwood, Berkeley
Lake, Rest Haven, Buford Dam-Lake Lanier Parks, Aqualand Park,
Chestnut Mountain, Oscarville, Road Atlanta-Lanier Speedway, Lake
Lanier Islands, and Hog Mountain.

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 3417 8378 3391 8400 3397 8419 3426 8411
      3431 8391
TIME...MOT...LOC 2113Z 207DEG 21KT 3404 8410

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
Local storm report, Jul 23, 5:38 PM EDT, 14 minutes before
Preliminary Local Storm Report
National Weather Service Peachtree City GA
538 PM EDT Tue Jul 23 2024

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

0408 PM     Tstm Wnd Dmg     3 SSE Homer             34.30N 83.48W
07/23/2024                   Banks              GA   Emergency Mngr

            Tree reported down on a power line near the
            intersection of Dogwood Dr and Historic
            Homer HWY. Other isolated trees reported
            down just north of Commerce in the same
            area.

&&

TV
Local storm report, Jul 23, 5:42 PM EDT, 10 minutes before
Preliminary Local Storm Report
National Weather Service Peachtree City GA
542 PM EDT Tue Jul 23 2024

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

0430 PM     Tstm Wnd Dmg     3 SSE Homer             34.30N 83.48W
07/23/2024                   Banks              GA   Emergency Mngr

            Corrects previous tstm wnd dmg report from 3
            SSE Homer. Tree reported down on a power
            line near the intersection of Dogwood Dr and
            Historic Homer HWY. Other isolated trees
            reported down just north of Commerce in the
            same area.

&&

TV
Special weather statement, Jul 23, 5:52 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
552 PM EDT Tue Jul 23 2024

GAZ033-044-045-055-232215-
North Fulton GA-Clayton GA-DeKalb GA-South Fulton GA-
552 PM EDT Tue Jul 23 2024

...A strong thunderstorm will impact portions of western DeKalb,
south central Fulton and northwestern Clayton Counties through 615 PM
EDT...

At 552 PM EDT, a strong thunderstorm was over College Park, or 8
miles east of City of South Fulton, moving northeast at 10 mph.

HAZARD...Up to 40 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...
Atlanta, City of South Fulton, East Point, Union City, Forest Park,
Riverdale, College Park, Hapeville, Grant Park-Zoo Atlanta,
Hartsfield-Jackson Airport, West End, Turner Field, Cascade Heights,
Lakewood Park, Sweet Auburn, Gresham Park, and Conley.

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 3377 8449 3376 8438 3369 8431 3355 8444
      3360 8456
TIME...MOT...LOC 2152Z 210DEG 11KT 3362 8448

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 2:34 PM EDTSpecial Weather StatementFFCChattooga26 min
Jul 23, 2:40 PM EDTSpecial Weather StatementFFCNewton35 min
Jul 23, 3:05 PM EDTSpecial Weather StatementFFCWalton25 min
Jul 23, 3:29 PM EDTSpecial Weather StatementFFCWalton31 min
Jul 23, 3:57 PM EDTSpecial Weather StatementFFCGordon33 min
Jul 23, 3:58 PM EDTSpecial Weather StatementFFCJackson32 min
Jul 23, 4:06 PM EDTSpecial Weather StatementFFCGilmer24 min
Jul 23, 4:27 PM EDTSpecial Weather StatementFFCBanks33 min
Jul 23, 5:13 PM EDTSpecial Weather StatementFFCGwinnett32 min
Jul 23, 6:14 PM EDTSpecial Weather StatementFFCGwinnett31 min
Jul 23, 6:19 PM EDTSpecial Weather StatementFFCHaralson26 min
Jul 23, 6:39 PM EDTFlash Flood WarningFFCDeKalb, Fulton, Gwinnett4 hr
Jul 23, 6:44 PM EDTSpecial Weather StatementFFCMuscogee31 min
Jul 23, 6:46 PM EDTSpecial Weather StatementFFCCarroll29 min
Jul 23, 7:00 PM EDTFlash Flood WarningFFCCobb4 hr
Jul 23, 7:24 PM EDTSpecial Weather StatementFFCJasper36 min

Nearby

Special Weather Statements in Georgia, 2024Every special weather statement in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.