Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 83, NWS Atlanta, GA

May 4, 20215 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 4, 2021, 8:58 PM EDT for 5 counties in Georgia. It was in force for 32 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 4, 2021, 8:58 PM EDT (00:58 UTC)
Expired: May 4, 2021, 9:30 PM EDT
In force: 32 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Coweta County, GA, Fayette County, GA, Meriwether County, GA, Pike County, GA, Spalding County, GA

The radar

The Atlanta radar (KFFC), 17 km from the middle of the area, began a volume at 00:59 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.

What was reported inside it

Time	Report	Where	Remark
May 4, 9:00 PM EDT	TSTM WND DMG	1 E Digbey, GA	TREE DOWN ALONG TRI COUNTY ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.0 hours before the alert went out and 13 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 860 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -136 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

344 
WUUS52 KFFC 050058
SVRFFC
GAC077-113-199-231-255-050130-
/O.NEW.KFFC.SV.W.0083.210505T0058Z-210505T0130Z/

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

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Western Spalding County in west central Georgia...
  Southeastern Fayette County in north central Georgia...
  Northeastern Meriwether County in west central Georgia...
  Northern Pike County in west central Georgia...
  Southeastern Coweta County in west central Georgia...

* Until 930 PM EDT.

* At 857 PM EDT, a severe thunderstorm was located over Alvaton, or
  12 miles northeast of Greenville, moving northeast at 45 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Griffin, Senoia, Brooks, Williamson, Haralson, Woolsey, Gay,
  Highland Mills, Rocky Mount, Starrs Mill, Birdie, Vaughn,
  Hollonville, Inman, Alvaton, Rover, Digbey, Lake Horton, Zetella
  and Wooster.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3341 8439 3339 8440 3338 8439 3337 8440
      3335 8439 3335 8434 3319 8423 3319 8425
      3316 8425 3306 8464 3322 8473
TIME...MOT...LOC 0057Z 245DEG 37KT 3318 8460 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 8:24 PM EDT	Flash Flood Warning	FFC	Heard, Troup	4 hr
May 4, 8:25 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Harris, Meriwether, Muscogee, Talbot, Troup	50 min
May 4, 8:34 PM EDT	Special Weather Statement	FFC	Dodge	26 min
May 4, 8:41 PM EDT	River Flood Warning	FFC	Polk	10 hr
May 4, 8:46 PM EDT	Severe Thunderstorm Warning	FFC	Stewart, Webster	44 min
May 4, 8:55 PM EDT	Severe Thunderstorm Warning	FFC	Marion	50 min
May 4, 9:15 PM EDT	Severe Thunderstorm Warning	FFC	Crawford, Lamar, Macon, Marion, Meriwether, Monroe and 8 more	45 min
May 4, 9:20 PM EDT	Special Weather Statement	FFC	Telfair	25 min
May 4, 9:50 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Crawford, Crisp, Dooly, Houston, Lamar and 7 more	25 min
May 4, 10:01 PM EDT	Special Weather Statement	FFC	Telfair	29 min
May 4, 10:14 PM EDT	River Flood Warning	FFC	Chattooga	8 hr
May 4, 10:16 PM EDT	Special Weather Statement	FFC	Bibb, Bleckley, Crisp, Dodge, Dooly, Houston and 5 more	29 min
May 4, 10:46 PM EDT	Special Weather Statement	FFC	Baldwin, Bleckley, Dodge, Jones, Laurens, Telfair and 3 more	44 min
May 4, 10:51 PM EDT	River Flood Warning	FFC	Cobb, Douglas	64 hr
May 4, 11:26 PM EDT	Special Weather Statement	FFC	Emanuel, Glascock, Jefferson, Johnson, Montgomery, Telfair and 4 more	49 min
May 4, 11:32 PM EDT	River Flood Warning	FFC	Cobb	7 hr
May 5, 12:42 AM EDT	River Flood Warning	FFC	Forsyth	11 hr
May 5, 12:55 AM EDT	River Flood Warning	FFC	Cobb	10 hr
May 5, 1:45 AM EDT	River Flood Warning	FFC	Haralson	24 hr
May 5, 2:42 AM EDT	River Flood Warning	FFC	Gwinnett, Walton	4 hr
May 5, 5:51 AM EDT	River Flood Warning	FFC	Bibb, Houston, Jones, Monroe, Twiggs	4 days
May 5, 6:36 AM EDT	River Flood Warning	FFC	Gwinnett	9 hr
May 5, 6:46 AM EDT	River Flood Warning	FFC	Carroll, Coweta, Heard	19 hr
May 5, 11:07 AM EDT	River Flood Warning	FFC	Cobb, Paulding	18 hr
May 5, 3:08 PM EDT	River Flood Warning	FFC	Floyd	31 hr
May 5, 6:12 PM EDT	River Flood Warning	FFC	Cobb, Douglas	19 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.