Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 77, NWS Atlanta, GA

May 4, 20219 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 4, 2021, 2:57 PM EDT for 9 counties in Georgia. It was in force for 48 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: May 4, 2021, 2:57 PM EDT (18:57 UTC)
Expired: May 4, 2021, 3:45 PM EDT
In force: 48 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Bartow County, GA, Carroll County, GA, Cherokee County, GA, Cobb County, GA, Douglas County, GA, Fulton County, GA, Haralson County, GA, Paulding County, GA, Polk County, GA

The radar

The Atlanta radar (KFFC), 83 km from the middle of the area, began a volume at 18:58 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 4, 10:48 AM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.0 hours before the alert went out and 86 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 590 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 753 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 213 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

As transmitted.

236 
WUUS52 KFFC 041857
SVRFFC
GAC015-045-057-067-097-121-143-223-233-041945-
/O.NEW.KFFC.SV.W.0077.210504T1857Z-210504T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
257 PM EDT Tue May 4 2021

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Paulding County in northwestern Georgia...
  Southwestern Cherokee County in north central Georgia...
  Haralson County in northwestern Georgia...
  Cobb County in north central Georgia...
  Central Carroll County in northwestern Georgia...
  Douglas County in north central Georgia...
  Southwestern Fulton County in north central Georgia...
  Eastern Polk County in northwestern Georgia...
  Southern Bartow County in northwestern Georgia...

* Until 345 PM EDT.

* At 256 PM EDT, severe thunderstorms were located along a line
  extending from near Aragon to Abilene, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Marietta, Douglasville, Carrollton, Canton, Cartersville, Dallas,
  Buchanan, Smyrna, Kennesaw, Woodstock, Acworth, Union City, Villa
  Rica, Powder Springs, Austell, Bremen, Temple, Rockmart, Euharlee
  and Hiram.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

If you see wind damage...hail or flooding...wait until the storm has
passed...and then call the National Weather Service toll free
at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at NWSATLANTA.

&&

LAT...LON 3409 8518 3409 8514 3408 8512 3410 8512
      3410 8505 3412 8504 3423 8452 3360 8454
      3356 8531
TIME...MOT...LOC 1856Z 257DEG 29KT 3404 8501 3365 8503 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 8:01 PM EDT	River Flood Warning	FFC	Gwinnett, Walton	2 hr
May 3, 8:09 PM EDT	Special Weather Statement	FFC	Harris	36 min
May 3, 8:45 PM EDT	Special Weather Statement	FFC	Talbot	30 min
May 3, 9:14 PM EDT	River Flood Warning	FFC	DeKalb, Rockdale	48 hr
May 3, 9:38 PM EDT	Special Weather Statement	FFC	Emanuel	22 min
May 3, 9:58 PM EDT	River Flood Warning	FFC	Carroll, Coweta, Heard	12 hr
May 3, 9:58 PM EDT	River Flood Warning	FFC	Cobb, Douglas	12 hr
May 3, 9:58 PM EDT	River Flood Warning	FFC	Clarke, Greene, Oconee	37 hr
May 3, 9:58 PM EDT	River Flood Warning	FFC	Cobb, Fulton	3 hr
May 3, 11:38 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	67 min
May 4, 12:48 AM EDT	Special Weather Statement	FFC	Montgomery, Treutlen	27 min
May 4, 1:17 AM EDT	Special Weather Statement	FFC	Montgomery, Toombs	28 min
May 4, 1:36 AM EDT	River Flood Warning	FFC	Newton, Rockdale	9 hr
May 4, 4:34 AM EDT	River Flood Warning	FFC	Gwinnett	5 hr
May 4, 10:42 AM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Dade, Walker	48 min
May 4, 11:01 AM EDT	Special Weather Statement	FFC	Walker	29 min
May 4, 11:05 AM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Dade, Floyd, Walker, Whitfield	25 min
May 4, 11:25 AM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Murray, Walker, Whitfield	35 min
May 4, 11:48 AM EDT	Special Weather Statement	FFC	Chattooga	42 min
May 4, 11:57 AM EDT	Special Weather Statement	FFC	Fannin	33 min
May 4, 12:18 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd, Gordon	57 min
May 4, 12:29 PM EDT	Special Weather Statement	FFC	Floyd, Gilmer, Gordon, Polk	31 min
May 4, 12:35 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Dawson, Gilmer, Gordon, Pickens	40 min
May 4, 12:59 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Cobb, Paulding, Polk	31 min
May 4, 1:13 PM EDT	Special Weather Statement	FFC	Haralson, Paulding	32 min
May 4, 1:28 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Cobb, Douglas, Haralson, Paulding	32 min
May 4, 1:47 PM EDT	Special Weather Statement	FFC	Banks, Hall, White	28 min
May 4, 1:48 PM EDT	Special Weather Statement	FFC	Forsyth, Gwinnett	27 min
May 4, 1:52 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Forsyth, Fulton, Gwinnett, Hall	38 min
May 4, 2:16 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Carroll, Floyd, Haralson, Paulding, Polk	44 min
May 4, 2:20 PM EDT	Special Weather Statement	FFC	DeKalb, Rockdale, Walton	25 min
May 4, 2:25 PM EDT	Special Weather Statement	FFC	Banks	35 min
May 4, 2:26 PM EDT	Special Weather Statement	FFC	Barrow	19 min
May 4, 2:41 PM EDT	Special Weather Statement	FFC	Barrow, Clarke, Jackson, Madison, Newton, Oconee and 2 more	34 min
May 4, 3:08 PM EDT	Flash Flood Warning	FFC	Barrow, Carroll, Cobb, DeKalb, Douglas, Fulton and 6 more	7 hr
May 4, 3:34 PM EDT	Special Weather Statement	FFC	Morgan	26 min
May 4, 3:35 PM EDT	Special Weather Statement	FFC	Heard	25 min
May 4, 4:13 PM EDT	Special Weather Statement	FFC	Coweta, Fayette	32 min
May 4, 4:46 PM EDT	Special Weather Statement	FFC	Henry, Spalding	29 min
May 4, 5:23 PM EDT	Special Weather Statement	FFC	Jones	37 min
May 4, 5:51 PM EDT	Special Weather Statement	FFC	Wilcox	24 min
May 4, 6:17 PM EDT	Special Weather Statement	FFC	Bleckley, Pulaski	28 min
May 4, 6:24 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Pulaski	36 min
May 4, 7:17 PM EDT	Special Weather Statement	FFC	Houston, Twiggs, Wilkinson	28 min
May 4, 7:51 PM EDT	Severe Thunderstorm Warning	FFC	Harris, Meriwether, Muscogee, Troup	39 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021 Every severe thunderstorm warning in 2021

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.