Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 6, NWS Atlanta, GA

March 17, 20214 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 17, 2021, 5:41 PM EDT for 4 counties in Georgia. It was in force for 34 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
Mar 17, 2021, 5:41 PM EDT (21:41 UTC)
Expired
Mar 17, 2021, 6:15 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Marion County, GA, Schley County, GA, Sumter County, GA, Webster County, GA

The radar

The Robins AFB radar (KJGX), 114 km from the middle of the area, began a volume at 21:40 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 12:00Z, 9.7 hours before the alert went out and 132 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 12:00Z on 2021-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

794 
WUUS52 KFFC 172141
SVRFFC
GAC197-249-261-307-172215-
/O.NEW.KFFC.SV.W.0006.210317T2141Z-210317T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
541 PM EDT Wed Mar 17 2021

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southeastern Marion County in west central Georgia...
  Webster County in west central Georgia...
  Schley County in west central Georgia...
  Northwestern Sumter County in west central Georgia...

* Until 615 PM EDT.

* At 540 PM EDT, a severe thunderstorm was located over Preston,
  moving northeast at 30 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...
  Buena Vista, Ellaville, Preston, Putnam, Seminole, Murrays
  Crossroads, Draneville, Friendship, Tazewell, Doyle, Church Hill,
  Centerpoint, Dumas and Walls Crossing.

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 3202 8466 3203 8465 3203 8464 3214 8464
      3241 8446 3236 8427 3233 8425 3230 8426
      3230 8424 3227 8422 3223 8422 3223 8420
      3195 8452
TIME...MOT...LOC 2140Z 224DEG 25KT 3209 8455 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
840 
WWUS52 KFFC 172158
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
558 PM EDT Wed Mar 17 2021

GAC197-249-261-307-172215-
/O.CON.KFFC.SV.W.0006.000000T0000Z-210317T2215Z/
Marion GA-Webster GA-Schley GA-Sumter GA-
558 PM EDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHEASTERN MARION...EAST CENTRAL WEBSTER...SCHLEY AND
NORTHWESTERN SUMTER COUNTIES...

At 558 PM EDT, a severe thunderstorm was located over Friendship, or
9 miles southwest of Ellaville, moving northeast at 30 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...
Ellaville, Putnam, Murrays Crossroads, Friendship, Doyle, Dumas and
Walls Crossing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3207 8453 3233 8443 3236 8427 3233 8425
      3230 8426 3230 8424 3227 8422 3223 8422
      3223 8420 3200 8446
TIME...MOT...LOC 2158Z 224DEG 25KT 3218 8445 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 8:41 PM EDTSpecial Weather StatementFFCBibb, Twiggs, Wilkinson34 min
Mar 16, 9:47 PM EDTRiver Flood WarningFFCGordon, Murray, Whitfield5 days
Mar 17, 2:22 AM EDTDense Fog AdvisoryFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more9 hr
Mar 17, 2:36 PM EDTRiver Flood WarningFFCWhitfield4 days
Mar 17, 3:21 PM EDTRiver Flood WarningFFCCatoosa62 hr
Mar 17, 4:45 PM EDTSpecial Weather StatementFFCDade30 min
Mar 17, 5:26 PM EDTSpecial Weather StatementFFCSchley, Webster34 min
Mar 17, 5:51 PM EDTFlash Flood WatchFFCBartow, Catoosa, Chattooga, Cherokee, Dade, Fannin and 8 more14 hr
Mar 17, 6:07 PM EDTSevere Thunderstorm WarningFFCDooly, Macon, Schley, Sumter38 min
Mar 17, 6:47 PM EDTSpecial Weather StatementFFCMacon28 min
Mar 17, 7:45 PM EDTSpecial Weather StatementFFCHouston, Twiggs30 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.