Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Atlanta, GA

June 27, 2020Clayton County, DeKalb County, Rockdale County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 27, 2020, 5:05 PM EDT for Clayton County, DeKalb County, Rockdale County, Georgia. It was in force for 25 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: Jun 27, 2020, 5:05 PM EDT (21:05 UTC)
Expired: Jun 27, 2020, 5:30 PM EDT
In force: 25 min
Issued by: NWS Atlanta, GA
Hail: 0.75 in
Wind: 50

Counties Clayton County, GA, DeKalb County, GA, Rockdale County, GA

The radar

The Atlanta radar (KFFC), 52 km from the middle of the area, began a volume at 21:08 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 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 Jun 27, 2:43 PM EDT, 2 hours 22 minutes earlier.

Area forecast discussion, Jun 27, 2:43 PM EDT, 2 hours 22 minutes before

Area Forecast Discussion
National Weather Service Peachtree City GA
243 PM EDT Sat Jun 27 2020

.SHORT TERM /Tonight through Sunday Night/...
An area of more organized convection associated with a weak upper
wave will be pushing across north GA this afternoon into evening.
While the higher SBCAPE axis is more confined to the west of the
CWA, there is enough marginal instability currently around 2500 J/kg
that could allow for some strong storms and cannot rule out severe,
but overall shear params are not impressive.

Enhanced moisture and possible weak impulses in the mostly broad
upper flow will allow for some lingering pops in the northeast
through tonight. Sunday has some amplified upper ridging into the
west and south portions of the CWA but enough diurnal heating will
still allow for at least slight pops by the afternoon and continued
higher chance pops in the far north with other possible upper wave
influence.

Temps should stay within a few degrees of climo norms through
period.

Baker

.LONG TERM /Monday through Saturday/...
Only tweaks to the long term based on the latest guidance.
An overall wet week still looks in the cards, especially after
Monday.

BDL

PREVIOUS DISCUSSION...
As we transition into next week, models are initially drier than
previous runs in response to a developing mid level ridge across
the area. In addition, instability is not all that high as
relatively warm temps aloft look to curb significant convective
development. All this points to low end chance pops for the area
for Monday afternoon and temps ranging from the upper 80s to mid
90s.

Ridge will get flattened very quickly though on Tuesday as a
shortwave moves into the Tennessee Valley. In addition, moisture
will be increasing from the south with PWATs approaching 2 inches
across Central GA. Will go with likely pops for the entire area
even though instability may struggle a bit given abundant cloud
cover across the area.

Big differences in the evolution of the developing cutoff low over
the Tennessee Valley per the latest long term guidance. The GFS
keeps the energy bottled up north of the area while the ECMWF
sends energy southward into the lower Mississippi Valley.
Regardless of the exact unfolding of this event, enough moisture
and lift should be present to warrant likely pops through Thu.

Deese

&&

.AVIATION...
18Z Update...
VFR conditions thru period, unless TSRA this afternoon/evening
drops VSBYs. Greatest chance for northern sites with an upper
disturbance after about 20/21z until 00z. Some FEW/SCT cu 3-5 kft
otherwise with alto/cirrus. Winds WSW 7-10 kts decreasing to 3-5
kts overnight then west winds back up for Sunday with some low end
gusts possible near KATL. Chances for precip Sunday afternoon too
low to mention in TAFs for now.

//ATL Confidence...18Z Update...
Medium on storm coverage this afternoon/evening.
High on all else.

Baker

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          71  91  72  92 /  30  20  10  40
Atlanta         71  89  72  89 /  30  20  10  40
Blairsville     65  81  66  83 /  30  40  40  50
Cartersville    69  89  71  90 /  30  30  20  40
Columbus        73  93  73  93 /  30  20  10  30
Gainesville     70  87  71  89 /  30  20  20  40
Macon           72  93  73  93 /  20  20   5  30
Rome            69  89  71  90 /  30  30  20  40
Peachtree City  70  89  71  90 /  30  20  10  30
Vidalia         74  95  75  96 /  20  20   5  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...Baker
LONG TERM....BDL
AVIATION...Baker

Hazardous weather outlook, Jun 27, 5:27 AM EDT, 11 hours 38 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
527 AM EDT Sat Jun 27 2020

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-280930-
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-
527 AM EDT Sat Jun 27 2020

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

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

Scattered showers and thunderstorms are expected to develop this
afternoon, mainly impacting north Georgia and portions of west
Georgia. Some isolated strong storms will be possible with gusty
winds, small hail, frequent lightning and heavy rainfall as the
primary concerns.

.DAYS TWO THROUGH SEVEN...Sunday through Friday...

Scattered to numerous showers and thunderstorms will be possible
each afternoon and evening. Gusty winds, frequent lightning, and
heavy rain will be possible with any storms that do develop.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

In the hours before

Special weather statement, Jun 27, 3:56 PM EDT, 1 hour 9 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
356 PM EDT Sat Jun 27 2020

GAZ030>032-041>043-272030-
Polk GA-Douglas GA-Cobb GA-Haralson GA-Carroll GA-Paulding GA-
356 PM EDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN POLK...NORTHWESTERN
DOUGLAS...WESTERN COBB...HARALSON...NORTHEASTERN CARROLL AND PAULDING
COUNTIES UNTIL 430 PM EDT...

At 355 PM EDT...a line of strong thunderstorms was along a line
extending from near Burnt Hickory Ridge to Tallapoosa...and moving
east at 45 mph.

  HAZARD...40 to 50 mph wind...pea sized hail and frequent cloud to
           ground lightning.

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

Some locations in the path of these storms include
Marietta, Carrollton, Dallas, Buchanan, Villa Rica, Powder Springs,
Bremen, Temple, Hiram, Tallapoosa, Mount Zion, Waco, Braswell,
Yorkville, Burnt Hickory Ridge, Lost Mountain Park, Cross Roads,
Abilene, Draketown and Lake Val-Do-Mar.

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 3404 8489 3397 8452 3359 8505 3374 8536
      3387 8538
TIME...MOT...LOC 1955Z 281DEG 41KT 3401 8489 3376 8531

HAIL...0.25IN
WIND...50MPH

Special weather statement, Jun 27, 4:03 PM EDT, 1 hour 2 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
403 PM EDT Sat Jun 27 2020

GAZ013-014-020>022-031>033-272030-
Dawson GA-North Fulton GA-Cobb GA-Cherokee GA-Bartow GA-Forsyth GA-
Pickens GA-Paulding GA-
403 PM EDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DAWSON...NORTH
FULTON...NORTHERN COBB...CHEROKEE...SOUTHEASTERN BARTOW...
NORTHWESTERN FORSYTH...SOUTHERN PICKENS AND NORTHEASTERN PAULDING
COUNTIES UNTIL 430 PM EDT...

At 402 PM EDT...a line of strong thunderstorms was along a line
extending from near Jasper to near Acworth...and moving east at 45
mph.

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

  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.

Some locations in the path of these storms include
Marietta, Canton, Jasper, Dawsonville, Sandy Springs, Roswell,
Alpharetta, Milton, Kennesaw, Woodstock, Acworth, Holly Springs,
Emerson, Ball Ground, Nelson, Waleska, Talking Rock, Free Home,
Buffington and Hickory Flat.

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 3444 8408 3397 8433 3397 8435 3392 8435
      3401 8480 3451 8453
TIME...MOT...LOC 2002Z 266DEG 51KT 3443 8445 3403 8467

HAIL...0.75IN
WIND...50MPH

Special weather statement, Jun 27, 4:30 PM EDT, 35 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
430 PM EDT Sat Jun 27 2020

GAZ031>033-041>045-055-272100-
North Fulton GA-Douglas GA-Cobb GA-Clayton GA-Haralson GA-Carroll GA-
DeKalb GA-Paulding GA-South Fulton GA-
430 PM EDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTH FULTON...DOUGLAS...SOUTHERN
COBB...NORTHWESTERN CLAYTON...SOUTHERN HARALSON...CARROLL...WESTERN
DEKALB...SOUTHEASTERN PAULDING AND SOUTH FULTON COUNTIES UNTIL 500 PM
EDT...

At 429 PM EDT...a line of strong thunderstorms was along a line
extending from Dobbins Air Reserve Base to Douglasville to near
Muscadine...and moving east at 40 mph.

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

  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.

Some locations in the path of these storms include
Atlanta, Marietta, Douglasville, Carrollton, Decatur, Buchanan, Sandy
Springs, Smyrna, Dunwoody, East Point, Union City, Forest Park,
Riverdale, Villa Rica, College Park, Powder Springs, Fairburn,
Chamblee, Doraville and Clarkston.

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 3381 8481 3397 8450 3392 8426 3388 8421
      3355 8434 3353 8513 3369 8535 3379 8536
TIME...MOT...LOC 2029Z 280DEG 35KT 3392 8451 3376 8476 3375 8534

HAIL...0.75IN
WIND...50MPH

Special weather statement, Jun 27, 4:33 PM EDT, 32 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
433 PM EDT Sat Jun 27 2020

GAZ014-022-023-032>034-045-272100-
Hall GA-Dawson GA-North Fulton GA-Cobb GA-DeKalb GA-Forsyth GA-
Gwinnett GA-
433 PM EDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR HALL...SOUTHERN DAWSON...NORTH
FULTON...EASTERN COBB...NORTHWESTERN DEKALB...FORSYTH AND GWINNETT
COUNTIES UNTIL 500 PM EDT...

At 433 PM EDT...a line of strong thunderstorms was along a line
extending from Silver City to near Dunwoody...and moving northeast at
40 mph.

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

  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.

Some locations in the path of these storms include
Gainesville, Lawrenceville, Cumming, Dawsonville, Sandy Springs,
Roswell, Johns Creek, Alpharetta, Dunwoody, Milton, Duluth, Sugar
Hill, Snellville, Suwanee, Buford, Lilburn, Norcross, Doraville,
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. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3442 8371 3381 8398 3395 8444 3412 8437
      3413 8436 3418 8435 3419 8433 3419 8426
      3442 8426
TIME...MOT...LOC 2033Z 235DEG 35KT 3435 8413 3398 8434

HAIL...0.75IN
WIND...50MPH

Local storm report, Jun 27, 4:52 PM EDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
452 PM EDT SAT JUN 27 2020

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

0350 PM     TSTM WND DMG     3 WSW CANTON            34.22N  84.53W
06/27/2020                   CHEROKEE           GA   SOCIAL MEDIA

            A LARGE TREE WAS DOWNED IN THE RIVER GREEN SUBDIVISION.

&&

EVENT NUMBER FFC2000798

RWILLIS

Special weather statement, Jun 27, 5:05 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
505 PM EDT Sat Jun 27 2020

GAZ033-043>048-053>055-057-272130-
Fayette GA-North Fulton GA-Walton GA-Douglas GA-Rockdale GA-
Clayton GA-Coweta GA-DeKalb GA-Newton GA-Henry GA-South Fulton GA-
505 PM EDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN FAYETTE...NORTH
FULTON...SOUTHWESTERN WALTON...DOUGLAS...ROCKDALE...CLAYTON...
NORTHEASTERN COWETA...DEKALB...NORTHERN NEWTON...NORTHWESTERN HENRY
AND SOUTH FULTON COUNTIES UNTIL 530 PM EDT...

At 505 PM EDT...a line of strong thunderstorms was along a line
extending from near Mountain Park to near Chattahoochee Hills...and
moving southeast at 10 mph.

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

  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.

Some locations in the path of these storms include
Atlanta, Decatur, Fayetteville, Conyers, Covington, Jonesboro,
Peachtree City, East Point, Stockbridge, Union City, Forest Park,
Riverdale, College Park, Fairburn, Clarkston, Tyrone, Morrow,
Hapeville, Stone Mountain and Palmetto.

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 3386 8416 3376 8404 3375 8402 3379 8398
      3365 8374 3339 8469 3367 8484
TIME...MOT...LOC 2105Z 314DEG 8KT 3382 8409 3360 8472

HAIL...0.75IN
WIND...50MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 2:36 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd	24 min
Jun 27, 3:14 PM EDT	Special Weather Statement	FFC	Bartow, Floyd, Gordon	31 min
Jun 27, 3:34 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cobb, Paulding	26 min
Jun 27, 3:56 PM EDT	Special Weather Statement	FFC	Cobb, Haralson, Paulding	34 min
Jun 27, 4:03 PM EDT	Special Weather Statement	FFC	Cherokee, Dawson, Pickens	27 min
Jun 27, 4:30 PM EDT	Special Weather Statement	FFC	Carroll, Clayton, Douglas, Fulton	30 min
Jun 27, 4:33 PM EDT	Special Weather Statement	FFC	Forsyth, Gwinnett, Hall	27 min
Jun 27, 5:00 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Barrow, Clarke, Gwinnett, Hall, Jackson and 3 more	30 min
Jun 27, 5:25 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Clarke, Greene, Jackson, Madison, Morgan and 3 more	35 min
Jun 27, 5:48 PM EDT	Special Weather Statement	FFC	Dodge	27 min
Jun 27, 5:52 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Pulaski	23 min
Jun 27, 6:02 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe, Wilkes	28 min
Jun 27, 6:30 PM EDT	Special Weather Statement	FFC	Hancock, Putnam, Taliaferro, Warren, Wilkes	30 min
Jun 27, 7:01 PM EDT	Special Weather Statement	FFC	Glascock, Warren	29 min

Nearby

Special Weather Statements in Georgia, 2020 Every special weather statement in 2020

Sources

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