Alert archive / Georgia / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 64, NWS Atlanta, GA

April 9, 2020Emanuel County, Johnson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 9, 2020, 6:54 AM EDT for Emanuel County, Johnson County, Georgia. It was in force for 40 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
Apr 9, 2020, 6:54 AM EDT (10:54 UTC)
Expired
Apr 9, 2020, 7:34 AM EDT
In force
40 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Emanuel County, GA, Johnson County, GA

The radar

The Robins AFB radar (KJGX), 76 km from the middle of the area, began a volume at 10:57 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

TimeReportWhereRemark
Apr 9, 7:00 AM EDTHAIL 0.751 E Wrightsville, GAPENNY-SIZED HAIL REPORTED 1 MILE EAST OF WRIGHTSVILLE ON HWY 319

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, 10.9 hours before the alert went out and 200 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 2020-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 845 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 2020-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
845 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
911 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted.

629 
WUUS52 KFFC 091054
SVRFFC
GAC107-167-091145-
/O.NEW.KFFC.SV.W.0064.200409T1054Z-200409T1145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
654 AM EDT Thu Apr 9 2020

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Emanuel County in east central Georgia...
  Johnson County in east central Georgia...

* Until 745 AM EDT.

* At 653 AM EDT, a severe thunderstorm was located 4 miles west of 
  Wrightsville, moving east-southeast at 50 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...
  Swainsboro, Wrightsville, Twin City, Adrian, Stillmore, Oak Park,
  Garfield, Nunez, Kite, Spann, Donovan, Covena, Modoc, Canoochee,
  Norristown, Norristown Junction, Dellwood, New Home, Meeks and
  Lexsy.

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 3253 8214 3246 8218 3236 8232 3241 8240
      3244 8238 3250 8250 3250 8254 3258 8267
      3261 8267 3266 8279 3269 8279 3273 8291
      3279 8285 3281 8280 3277 8277 3280 8269
      3278 8267 3279 8264 3268 8209
TIME...MOT...LOC 1053Z 293DEG 44KT 3277 8280 

HAIL...1.00IN
WIND...60MPH
 
$$
3 follow-up statements
839 
WWUS52 KFFC 091115
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
715 AM EDT Thu Apr 9 2020

GAC107-167-091145-
/O.CON.KFFC.SV.W.0064.000000T0000Z-200409T1145Z/
Emanuel GA-Johnson GA-
715 AM EDT Thu Apr 9 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM EDT
FOR EMANUEL AND EASTERN JOHNSON COUNTIES...

At 715 AM EDT, a severe thunderstorm was located over Kite, or 10
miles northwest of Swainsboro, moving southeast at 50 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...
Swainsboro, Twin City, Adrian, Stillmore, Oak Park, Garfield, Nunez,
Kite, Covena, Modoc, Canoochee, Norristown, Norristown Junction,
Dellwood, New Home, Meeks and Lexsy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3253 8214 3246 8218 3236 8232 3241 8240
      3244 8238 3250 8250 3250 8254 3258 8267
      3261 8267 3279 8264 3268 8209
TIME...MOT...LOC 1115Z 293DEG 44KT 3266 8250 

HAIL...1.00IN
WIND...60MPH
 
$$
229 
WWUS52 KFFC 091125
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
725 AM EDT Thu Apr 9 2020

GAC167-091135-
/O.CAN.KFFC.SV.W.0064.000000T0000Z-200409T1145Z/
Johnson GA-
725 AM EDT Thu Apr 9 2020

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN JOHNSON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3253 8214 3246 8218 3236 8232 3241 8240
      3242 8239 3253 8259 3253 8256 3256 8259
      3258 8259 3262 8252 3264 8250 3264 8249
      3265 8247 3266 8249 3269 8250 3272 8245
      3275 8244 3268 8209
TIME...MOT...LOC 1125Z 293DEG 44KT 3261 8236 

$$

GAC107-091145-
/O.CON.KFFC.SV.W.0064.000000T0000Z-200409T1145Z/
Emanuel GA-
725 AM EDT Thu Apr 9 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM EDT
FOR EMANUEL COUNTY...

At 725 AM EDT, a severe thunderstorm was located over Swainsboro,
moving southeast at 50 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...
Swainsboro, Twin City, Stillmore, Oak Park, Garfield, Nunez, Covena,
Modoc, Canoochee, Norristown, Norristown Junction, Dellwood and
Lexsy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3253 8214 3246 8218 3236 8232 3241 8240
      3242 8239 3253 8259 3253 8256 3256 8259
      3258 8259 3262 8252 3264 8250 3264 8249
      3265 8247 3266 8249 3269 8250 3272 8245
      3275 8244 3268 8209
TIME...MOT...LOC 1125Z 293DEG 44KT 3261 8236 

HAIL...1.00IN
WIND...60MPH
 
$$
249 
WWUS52 KFFC 091134
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
734 AM EDT Thu Apr 9 2020

GAC107-091143-
/O.CAN.KFFC.SV.W.0064.000000T0000Z-200409T1145Z/
Emanuel GA-
734 AM EDT Thu Apr 9 2020

...THE SEVERE THUNDERSTORM WARNING FOR EMANUEL COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

LAT...LON 3253 8214 3246 8218 3236 8232 3241 8240
      3242 8239 3253 8259 3253 8256 3256 8259
      3258 8259 3262 8252 3264 8250 3264 8249
      3265 8247 3266 8249 3269 8250 3272 8245
      3275 8244 3268 8209
TIME...MOT...LOC 1132Z 293DEG 44KT 3257 8224 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 8:15 PM EDTSevere Thunderstorm WarningFFCToombs19 min
Apr 8, 8:23 PM EDTSpecial Weather StatementFFCTelfair22 min
Apr 9, 1:27 AM EDTSpecial Weather StatementFFCCatoosa, Dade, Walker, Whitfield63 min
Apr 9, 2:31 AM EDTSpecial Weather StatementFFCFannin, Gilmer, Murray, Union29 min
Apr 9, 3:01 AM EDTSpecial Weather StatementFFCTowns, Union, White29 min
Apr 9, 3:18 AM EDTSpecial Weather StatementFFCFloyd27 min
Apr 9, 3:35 AM EDTSpecial Weather StatementFFCBartow, Floyd25 min
Apr 9, 4:00 AM EDTSpecial Weather StatementFFCCobb30 min
Apr 9, 4:11 AM EDTSpecial Weather StatementFFCHaralson, Polk34 min
Apr 9, 4:29 AM EDTSpecial Weather StatementFFCCobb31 min
Apr 9, 4:40 AM EDTSevere Thunderstorm WarningFFCCarroll, Cobb, Douglas, Haralson, Paulding35 min
Apr 9, 5:06 AM EDTSpecial Weather StatementFFCClayton, Douglas24 min
Apr 9, 5:22 AM EDTSpecial Weather StatementFFCLamar, Spalding23 min
Apr 9, 5:40 AM EDTSevere Thunderstorm WarningFFCBibb, Jones, Lamar, Monroe32 min
Apr 9, 5:51 AM EDTSpecial Weather StatementFFCPutnam24 min
Apr 9, 6:11 AM EDTSpecial Weather StatementFFCJones, Wilkinson34 min
Apr 9, 6:43 AM EDTSpecial Weather StatementFFCJohnson, Wilkinson32 min
Apr 9, 7:36 AM EDTSpecial Weather StatementFFCEmanuel9 min
Apr 9, 3:08 PM EDTRed Flag WarningFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more29 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2020Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.