Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 51, NWS Atlanta, GA

April 24, 20217 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 24, 2021, 9:36 PM EDT for 7 counties in Georgia. It was in force for 39 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
Apr 24, 2021, 9:36 PM EDT (01:36 UTC)
Expired
Apr 24, 2021, 10:15 PM EDT
In force
39 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clarke County, GA, Greene County, GA, Jasper County, GA, Morgan County, GA, Oconee County, GA, Oglethorpe County, GA, Putnam County, GA

The radar

The Robins AFB radar (KJGX), 115 km from the middle of the area, began a volume at 01:37 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 00:00Z, 1.6 hours before the alert went out and 124 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 00:00Z on 2021-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2021-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 square meters per square second.1939587897117Sfc1 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
72 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
1188 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

571 
WUUS52 KFFC 250136
SVRFFC
GAC059-133-159-211-219-221-237-250215-
/O.NEW.KFFC.SV.W.0051.210425T0136Z-210425T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
936 PM EDT Sat Apr 24 2021

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Oconee County in northeastern Georgia...
  Morgan County in north central Georgia...
  Putnam County in central Georgia...
  Southeastern Clarke County in northeastern Georgia...
  Greene County in east central Georgia...
  Oglethorpe County in northeastern Georgia...
  Northern Jasper County in central Georgia...

* Until 1015 PM EDT.

* At 936 PM EDT, severe thunderstorms were located along a line
  extending from near Eastville to 6 miles southwest of Madison to
  near Flovilla, moving east at 45 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Eatonton, Madison, Greensboro, Watkinsville, Monticello, Lexington,
  Union Point, Winterville, Crawford, North High Shoals, Bostwick,
  Arnoldsville, Woodville, Siloam, Shady Dale, Bishop, Maxeys,
  Buckhead, Phoenix and Reynolds at Lake Oconee.

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 3381 8297 3379 8298 3371 8297 3369 8300
      3368 8298 3362 8298 3363 8299 3361 8299
      3325 8334 3322 8382 3325 8381 3353 8353
      3377 8355 3381 8351 3384 8356 3390 8356
      3402 8305 3404 8298 3404 8295
TIME...MOT...LOC 0136Z 260DEG 39KT 3388 8355 3354 8355 3324 8386 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
639 
WWUS52 KFFC 250211
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
1011 PM EDT Sat Apr 24 2021

GAC059-133-159-211-219-221-237-250221-
/O.EXP.KFFC.SV.W.0051.000000T0000Z-210425T0215Z/
Oconee GA-Morgan GA-Putnam GA-Clarke GA-Greene GA-Oglethorpe GA-
Jasper GA-
1011 PM EDT Sat Apr 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR OCONEE...MORGAN...PUTNAM...
SOUTHEASTERN CLARKE...GREENE...OGLETHORPE AND NORTHERN JASPER
COUNTIES WILL EXPIRE AT 1015 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3381 8297 3379 8298 3371 8297 3369 8300
      3368 8298 3362 8298 3363 8299 3361 8299
      3325 8334 3322 8382 3325 8381 3353 8353
      3377 8355 3381 8351 3384 8356 3390 8356
      3402 8305 3404 8298 3404 8295
TIME...MOT...LOC 0211Z 260DEG 39KT 3394 8311 3360 8312 3330 8343 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 8:07 PM EDTSevere Thunderstorm WarningFFCClayton, Cobb, Coweta, DeKalb, Douglas, Fayette and 4 more53 min
Apr 24, 8:20 PM EDTSevere Thunderstorm WarningFFCCoweta, Fayette, Heard, Meriwether, Troup40 min
Apr 24, 8:25 PM EDTSpecial Weather StatementFFCForsyth35 min
Apr 24, 8:36 PM EDTSevere Thunderstorm WarningFFCClayton, Coweta, DeKalb, Fayette, Gwinnett, Henry and 4 more39 min
Apr 24, 8:59 PM EDTSpecial Weather StatementFFCMeriwether, Pike, Troup31 min
Apr 24, 9:03 PM EDTSevere Thunderstorm WarningFFCButts, Gwinnett, Henry, Jasper, Monroe, Morgan and 5 more42 min
Apr 24, 9:28 PM EDTSpecial Weather StatementFFCHarris, Lamar, Pike, Talbot, Upson32 min
Apr 24, 9:57 PM EDTSpecial Weather StatementFFCMonroe33 min
Apr 24, 10:08 PM EDTSpecial Weather StatementFFCHancock, Oglethorpe, Taliaferro, Warren, Wilkes37 min
Apr 24, 10:18 PM EDTSpecial Weather StatementFFCJones27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021Every 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.