Severe Thunderstorm Warning 429, NWS Atlanta, GA

338 
WWUS52 KFFC 071943
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
343 PM EDT Mon Aug 7 2023

GAC015-071952-
/O.CAN.KFFC.SV.W.0429.000000T0000Z-230807T2000Z/
Bartow GA-
343 PM EDT Mon Aug 7 2023

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BARTOW COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
north central Georgia.

LAT...LON 3426 8429 3418 8434 3416 8436 3414 8436
      3414 8437 3415 8462 3428 8462 3437 8437
TIME...MOT...LOC 1942Z 261DEG 25KT 3423 8446 

$$

GAC057-072000-
/O.CON.KFFC.SV.W.0429.000000T0000Z-230807T2000Z/
Cherokee GA-
343 PM EDT Mon Aug 7 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR CENTRAL CHEROKEE COUNTY...

At 342 PM EDT, a severe thunderstorm was located over Canton, moving
east at 30 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Canton, Holly Springs, Ball Ground, Waleska, Buffington, Little River
Landing, Hickory Flat, Union Hill, Lake Arrowhead, Lathemtown,
Sutallee, and Bridgemill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3426 8429 3418 8434 3416 8436 3414 8436
      3414 8437 3415 8462 3428 8462 3437 8437
TIME...MOT...LOC 1942Z 261DEG 25KT 3423 8446 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Area Forecast Discussion
National Weather Service Peachtree City GA
314 PM EDT Mon Aug 7 2023

...Afternoon Area Forecast Discussion...

.SHORT TERM...
(This afternoon through Tuesday)
Issued at 238 PM EDT Mon Aug 7 2023

Key Messages:

- A widespread wind damage threat is evolving this afternoon and
  could continue through late evening across the forecast area.
  SPC has included an Enhanced risk (level 3 out of 5) for much of
  the area. Tornadoes will be possible, mainly across Northern GA,
  however, the wind threat should be considered the dominate
  impact.

- An Excessive Heat warning has been issued for portions of Middle
  GA. Heat index values are in excess of 110 for several counties.
  A heat advisory is in effect for much of the remainder of
  Central GA through 8 pm.

- Thunderstorms are again in the forecast for Tuesday with a
  Slight Risk in effect for much of Middle GA. Damaging winds will
  be the main concern.

Today and tonight:
A lot happening this afternoon and in the short term. Lets start
with heat.  Mid 90 temps and upper 70 dewpoints across West
central GA have led to heat index values exceeding 110 in several
locations so a Excessive Heat warning was introduced through early
evening for a portion of the Heat Advisory area.

Severe threat... 18z FFC sounding is juicy to say the least.
Observed 5390 J/KG CAPE, nearly 1500 DCape and sufficient shear in
place to support organized severe storms. Similarly to what we
experienced a few weeks ago across North GA not out of the
question given that amount of instability and slightly more jet
dynamics in play this time around. Expect the clusters of storms
across northern GA and Northern AL to congeal into more of a line
that shifts through the region later this afternoon. Damaging
winds with that line and within that line would be expected to be
widespread given the status of the environment its moving into.
Analyzed helicity values on the margin for some tornadoes so a few
cannot be ruled out, however, the main focus should be on the
damaging wind threat through this evening. Expect that line to
continue south through the CWA. There is some uncertainty with the
intensity of the line as it reaches the area south of
Macon/Columbus but certainly unstable enough to support severe
storms.

Tuesday:
Another wave is still progged to slide east out of OK/AR and
potentially develop into an MCS which may clip the southern
sections of the CWA late Tue afternoon/early evening. There are
some discrepancies on the northward extent of the convection with
the WRF FV3 the furthest north into the I20 corridor and the NAM
Nest and WRF ARW further south across southwestern and south
central GA. SPC does highlight a slight risk across that southern
tier of counties more inline with the NAM nest and ARW.

Stellman

&&

.LONG TERM...
(Wednesday morning through next Sunday)
Issued at 238 PM EDT Mon Aug 7 2023

The long term forecast remains on track. Model guidance continues to
prog a potent disturbance kicking out of the Plains that could bring
yet another round of impactful weather on Thursday afternoon. Bulk
shear ranging from 35 to 60+KT across north Georgia coinciding with
2000-3000+ J/kg of SBCAPE will merit a watchful eye in the coming
days for the threat of severe weather. See the previous
discussion below for more details regarding the extended forecast.

KAL

&&

.AVIATION...
(18Z TAFS)
Issued at 224 PM EDT Mon Aug 7 2023

Main concerns will be thunderstorms and timing. Now that a solid
line of storms appears to be taking shape we can put a little more
confidence on timing for the sites later this afternoon/evening.
CAMS still struggling with any redevelopment behind the main line
and if there will be any but for now will assume the airmass
stabilizes behind the main surge.
Added prob30 for Tuesday as most convection is forecast to remain
across central GA sites however there is some guidance suggesting
some development post 18z across metro sites. Winds outside of
TS will remain west  and gusty this afternoon.

//ATL Confidence...18Z Update...
Medium confidence precip timing
high confidence all other elements

30

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          70  89  69  90 /  60  10  20  30
Atlanta         72  89  71  91 /  50  30  20  50
Blairsville     64  82  61  84 /  50  10  10  40
Cartersville    69  87  69  89 /  50  20  20  50
Columbus        75  94  73  92 /  20  60  40  60
Gainesville     71  87  69  89 /  60  10  10  40
Macon           73  94  72  92 /  30  50  40  50
Rome            69  88  68  89 /  50  20  20  60
Peachtree City  71  90  69  91 /  40  40  30  50
Vidalia         76  95  73  92 /  20  50  40  50

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 8 PM EDT this evening for GAZ038-039-049>051-
058>062-066>076-078>086-089>098-102>113.

Excessive Heat Warning until 8 PM EDT this evening for GAZ072-
073-080>084-089>096-102>108.

&&

SHORT TERM...30
LONG TERM....KAL
AVIATION...30

Hazardous Weather Outlook
National Weather Service Peachtree City GA
453 AM EDT Mon Aug 7 2023

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-080900-
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-
453 AM EDT Mon Aug 7 2023

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

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

Northern Georgia has an Enhanced Risk (level 3 of 5) of
thunderstorms with damaging winds between 3 PM and 10 PM today.
This risk area includes the Atlanta Metro. The strongest storms
may produce 50 to 70 mph wind gusts, with isolated gusts near 80
mph not out of the realm of possibility. Winds of this magnitude
may cause widespread tree and power line damage if they
materialize. Please heed any warnings issued for your area.

A Heat Advisory is in place across central Georgia from noon to 8
PM today due to expected heat indices in the 105 to 110 degree
range. Be sure to take the necessary steps to stay cool and
hydrated.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday...

There is a Slight Risk (level 2 of 5) for thunderstorms with
damaging winds in central Georgia on Tuesday.

Periods of thunderstorm activity will continue through next
Sunday. The highest storm chances will occur during the afternoon
and evening hours each day.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

Special Weather Statement
National Weather Service Peachtree City GA
251 PM EDT Mon Aug 7 2023

GAZ021-022-033-071930-
North Fulton GA-Cherokee GA-Forsyth GA-
251 PM EDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of southeastern
Cherokee, northwestern Forsyth and northeastern Fulton Counties
through 330 PM EDT...

At 251 PM EDT, a strong thunderstorm was over Union Hill, or 7 miles
southeast of Canton, moving east at 25 mph.

HAZARD...40 to 50 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...
Canton, Cumming, Milton, Free Home, Buffington, Hickory Flat, Drew,
Union Hill, Coal Mountain, Hightower, Birmingham, Matt, Holbrook,
Lathemtown, and Ducktown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
north central Georgia.

&&

LAT...LON 3427 8408 3413 8413 3412 8446 3422 8448
      3434 8425 3434 8417
TIME...MOT...LOC 1851Z 253DEG 20KT 3419 8439

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Special Weather Statement
National Weather Service Peachtree City GA
258 PM EDT Mon Aug 7 2023

GAZ011>013-019>021-030-071945-
Chattooga GA-Polk GA-Cherokee GA-Gordon GA-Bartow GA-Pickens GA-
Floyd GA-
258 PM EDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of northwestern
Cherokee, Floyd, southern Gordon, northern Polk, southwestern
Pickens, Chattooga and Bartow Counties through 345 PM EDT...

At 257 PM EDT, a strong thunderstorm was near Coosa, or near Rome,
moving east at 30 mph.

HAZARD...40 to 50 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...
Rome, Cartersville, Calhoun, Cedartown, Summerville, Adairsville,
Euharlee, Emerson, Aragon, Cave Spring, White, Kingston, Plainville,
Taylorsville, Shannon, Cassville, Fairmount, Lyerly, Menlo, and
Pinson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
north central and northwestern Georgia.

&&

LAT...LON 3443 8457 3411 8461 3408 8481 3408 8492
      3406 8493 3399 8540 3454 8551
TIME...MOT...LOC 1857Z 259DEG 28KT 3429 8528

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Special Weather Statement
National Weather Service Peachtree City GA
258 PM EDT Mon Aug 7 2023

GAZ002-004-005-071930-
Whitfield GA-Walker GA-Murray GA-
258 PM EDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of southwestern Murray,
southern Whitfield and southeastern Walker Counties through 330 PM
EDT...

At 257 PM EDT, a strong thunderstorm was near Mill Creek, or just
west of Dalton, moving east at 40 mph.

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...
Dalton, Chatsworth, Eton, Mill Creek, Dawnville, Ramhurst, Villanow,
Rocky Face, Fort Mountain State Park, Tilton, and North Georgia
Speedway.

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.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northwestern Georgia.

&&

LAT...LON 3484 8472 3473 8467 3461 8478 3462 8491
      3463 8491 3463 8493 3462 8493 3463 8513
      3482 8509
TIME...MOT...LOC 1857Z 269DEG 36KT 3474 8505

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

Special Weather Statement
National Weather Service Peachtree City GA
303 PM EDT Mon Aug 7 2023

GAZ014>016-021>025-032>035-071945-
Hall GA-Banks GA-Jackson GA-Dawson GA-North Fulton GA-Barrow GA-
Cobb GA-Cherokee GA-Forsyth GA-Gwinnett GA-White GA-Lumpkin GA-
303 PM EDT Mon Aug 7 2023

...Strong thunderstorms will impact portions of southeastern
Cherokee, northwestern Barrow, Forsyth, northeastern Cobb,
southeastern Lumpkin, northern Gwinnett, Banks, White, southeastern
Dawson, Hall, northwestern Jackson and northeastern Fulton Counties
through 345 PM EDT...

At 303 PM EDT, a line of strong thunderstorms was along a line
extending from Qualatchee Lake to Sandy Plains, and moving northeast
at 45 mph.

HAZARD...40 to 50 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...
Marietta, Gainesville, Jefferson, Commerce, Cumming, Dahlonega,
Cleveland, Homer, Mountain Park, Sandy Springs, Roswell, Johns Creek,
Alpharetta, Milton, Duluth, Sugar Hill, Suwanee, Buford, Braselton,
and Flowery Branch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
north central and northeastern Georgia.

&&

LAT...LON 3473 8362 3465 8366 3462 8364 3458 8364
      3455 8362 3451 8367 3443 8361 3449 8355
      3449 8352 3446 8340 3442 8338 3440 8338
      3414 8355 3393 8459 3471 8377 3476 8363
TIME...MOT...LOC 1903Z 246DEG 37KT 3464 8381 3402 8448

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Special Weather Statement
National Weather Service Peachtree City GA
314 PM EDT Mon Aug 7 2023

GAZ081-082-094-072000-
Peach GA-Bibb GA-Crawford GA-
314 PM EDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of Bibb, northeastern
Peach and northeastern Crawford Counties through 400 PM EDT...

At 314 PM EDT, a strong thunderstorm was near Lee Pope, or 7 miles
southeast of Roberta, moving east at 30 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...
Macon, Byron, Payne, Payne City, Cross Keys, Wesleyan, Lizella, Lake
Tobesofkee, Jack Brown Estates, Skipperton, and Rutland.

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 3270 8396 3292 8372 3290 8367 3289 8366
      3289 8365 3285 8356 3274 8358 3274 8360
      3271 8360 3269 8369 3269 8370 3268 8370
      3261 8392
TIME...MOT...LOC 1914Z 247DEG 25KT 3268 8390

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

Preliminary Local Storm Report
National Weather Service Peachtree City GA
319 PM EDT Mon Aug 7 2023

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

0201 PM     Tstm Wnd Dmg     1 SW Hooker             34.97N 85.45W
08/07/2023                   Dade               GA   Emergency Mngr

            Powerlines down on I-59N near I-24.

&&

KAL