Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 341, NWS Atlanta, GA

December 2, 20185 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Dec 2, 2018, 7:31 AM EST for 5 counties in Georgia. It was in force for 44 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
Dec 2, 2018, 7:31 AM EST (12:31 UTC)
Expired
Dec 2, 2018, 8:15 AM EST
In force
44 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Glascock County, GA, Jefferson County, GA, Johnson County, GA, Warren County, GA, Washington County, GA

The radar

The Robins AFB radar (KJGX), 80 km from the middle of the area, began a volume at 12:33 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

Charleston AFB, SC (KCHS), launched 12:00Z, 0.5 hours before the alert went out and 249 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, Charleston AFB, SC at 12:00Z on 2018-12-02Temperature 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, Charleston AFB, SC at 12:00Z on 2018-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 square meters per square second.19395878Sfc1 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
797 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
247 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

184 
WUUS52 KFFC 021231
SVRFFC
GAC125-163-167-301-303-021315-
/O.NEW.KFFC.SV.W.0341.181202T1231Z-181202T1315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
731 AM EST SUN DEC 2 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southeastern Warren County in east central Georgia...
  Glascock County in east central Georgia...
  Washington County in east central Georgia...
  Northwestern Johnson County in east central Georgia...
  Jefferson County in east central Georgia...

* Until 815 AM EST.

* At 730 AM EST, severe thunderstorms were located along a line 
  extending from near Deepstep to near Sandersville to north of 
  Tuckers Crossroad, moving northeast at 55 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Sandersville, Louisville, Gibson, Wrens, Davisboro, Tennille,
  Harrison, Stapleton, Oconee, Avera, Mitchell, Deepstep,
  Riddleville, Edge Hill, Edgehill, Hamburg State Park, Downs,
  Grange, Stapletons Crossroads and Agricola.

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.

&&

A Tornado Watch remains in effect until 1100 AM EST for central
Georgia.

LAT...LON 3310 8228 3271 8289 3271 8296 3275 8294
      3276 8296 3280 8295 3305 8305 3307 8304
      3313 8290 3320 8285 3324 8275 3326 8275
      3328 8267 3336 8254 3334 8250 3333 8242
      3331 8239 3331 8234 3326 8225 3323 8223
TIME...MOT...LOC 1230Z 230DEG 50KT 3307 8293 3297 8277 3279 8287 

HAIL...0.75IN
WIND...60MPH
 
$$
3 follow-up statements
974 
WWUS52 KFFC 021240
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
740 AM EST SUN DEC 2 2018

GAC167-021250-
/O.CAN.KFFC.SV.W.0341.000000T0000Z-181202T1315Z/
Johnson GA-
740 AM EST SUN DEC 2 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN JOHNSON COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3310 8228 3279 8277 3281 8280 3276 8296
      3280 8295 3305 8305 3307 8304 3313 8290
      3320 8285 3324 8275 3326 8275 3328 8267
      3335 8255 3333 8242 3331 8239 3331 8234
      3327 8226 3323 8223
TIME...MOT...LOC 1240Z 230DEG 53KT 3316 8279 3306 8263 3288 8273 

$$

GAC125-163-301-303-021315-
/O.CON.KFFC.SV.W.0341.000000T0000Z-181202T1315Z/
Warren GA-Glascock GA-Washington GA-Jefferson GA-
740 AM EST SUN DEC 2 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM EST
FOR SOUTHEASTERN WARREN...GLASCOCK...WASHINGTON AND JEFFERSON
COUNTIES...

At 740 AM EST, severe thunderstorms were located along a line
extending from near Hamburg State Park to near Downs to near
Harrison, moving northeast at 60 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Sandersville, Louisville, Gibson, Wrens, Davisboro, Tennille,
Harrison, Stapleton, Oconee, Avera, Mitchell, Deepstep, Riddleville,
Edge Hill, Edgehill, Hamburg State Park, Downs, Grange, Stapletons
Crossroads and Agricola.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3310 8228 3279 8277 3281 8280 3276 8296
      3280 8295 3305 8305 3307 8304 3313 8290
      3320 8285 3324 8275 3326 8275 3328 8267
      3335 8255 3333 8242 3331 8239 3331 8234
      3327 8226 3323 8223
TIME...MOT...LOC 1240Z 230DEG 53KT 3316 8279 3306 8263 3288 8273 

HAIL...0.75IN
WIND...60MPH
 
$$
478 
WWUS52 KFFC 021247
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
747 AM EST SUN DEC 2 2018

GAC303-021256-
/O.CAN.KFFC.SV.W.0341.000000T0000Z-181202T1315Z/
Washington GA-
747 AM EST SUN DEC 2 2018

...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3310 8228 3294 8253 3302 8255 3304 8260
      3313 8266 3318 8274 3321 8273 3326 8275
      3328 8267 3335 8255 3333 8242 3331 8239
      3331 8234 3329 8230 3327 8229 3327 8226
      3323 8223
TIME...MOT...LOC 1246Z 228DEG 54KT 3322 8268 3311 8255 3300 8253 

$$

GAC125-163-301-021315-
/O.CON.KFFC.SV.W.0341.000000T0000Z-181202T1315Z/
Warren GA-Glascock GA-Jefferson GA-
747 AM EST SUN DEC 2 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM EST
FOR SOUTHEASTERN WARREN...GLASCOCK AND JEFFERSON COUNTIES...

At 746 AM EST, severe thunderstorms were located along a line
extending from Mitchell to near Stapletons Crossroads to near
Davisboro, moving northeast at 65 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Louisville, Gibson, Wrens, Stapleton, Avera, Mitchell, Edge Hill,
Edgehill, Grange, Stapletons Crossroads, Matthews, Agricola,
Stellaville and Bastonville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3310 8228 3294 8253 3302 8255 3304 8260
      3313 8266 3318 8274 3321 8273 3326 8275
      3328 8267 3335 8255 3333 8242 3331 8239
      3331 8234 3329 8230 3327 8229 3327 8226
      3323 8223
TIME...MOT...LOC 1246Z 228DEG 54KT 3322 8268 3311 8255 3300 8253 

HAIL...0.75IN
WIND...60MPH
 
$$
901 
WWUS52 KFFC 021306
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
806 AM EST SUN DEC 2 2018

GAC125-163-301-021315-
/O.EXP.KFFC.SV.W.0341.000000T0000Z-181202T1315Z/
Warren GA-Glascock GA-Jefferson GA-
806 AM EST SUN DEC 2 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WARREN...GLASCOCK
AND JEFFERSON COUNTIES WILL EXPIRE AT 815 AM EST...
    
The storms which prompted the warning are moving out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3310 8228 3294 8253 3302 8255 3304 8260
      3313 8266 3318 8274 3321 8273 3326 8275
      3328 8267 3335 8255 3333 8242 3331 8239
      3331 8234 3329 8230 3327 8229 3327 8226
      3323 8223
TIME...MOT...LOC 1305Z 270DEG 50KT 3338 8245 3327 8232 3316 8230 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 1, 7:54 PM ESTSpecial Weather StatementFFCWheeler36 min
Dec 1, 10:48 PM ESTSpecial Weather StatementFFCSumter27 min
Dec 1, 11:17 PM ESTSpecial Weather StatementFFCDooly28 min
Dec 1, 11:38 PM ESTSpecial Weather StatementFFCCrisp, Wilcox52 min
Dec 2, 12:35 AM ESTFlash Flood WarningFFCCrisp, Dooly, Sumter6 hr
Dec 2, 12:37 AM ESTFlash Flood WatchFFCCrisp, Dodge, Dooly, Emanuel, Laurens, Montgomery and 8 more15 hr
Dec 2, 1:08 AM ESTRiver Flood WarningFFCGwinnett6 hr
Dec 2, 1:52 AM ESTSpecial Weather StatementFFCWilcox38 min
Dec 2, 2:26 AM ESTFlash Flood WarningFFCDodge, Pulaski, Wilcox6 hr
Dec 2, 3:05 AM ESTSpecial Weather StatementFFCDodge25 min
Dec 2, 4:00 AM ESTSpecial Weather StatementFFCDodge30 min
Dec 2, 4:32 AM ESTSpecial Weather StatementFFCMontgomery, Wheeler28 min
Dec 2, 4:50 AM ESTSpecial Weather StatementFFCCrisp25 min
Dec 2, 5:00 AM ESTSpecial Weather StatementFFCMontgomery, Toombs30 min
Dec 2, 5:04 AM ESTSpecial Weather StatementFFCGlascock11 min
Dec 2, 5:14 AM ESTSpecial Weather StatementFFCCandler16 min
Dec 2, 5:29 AM ESTSpecial Weather StatementFFCToombs31 min
Dec 2, 5:55 AM ESTAreal Flood WarningFFCCrisp, Dodge, Dooly, Pulaski, Wilcox6 hr
Dec 2, 6:22 AM ESTSpecial Weather StatementFFCTelfair23 min
Dec 2, 6:30 AM ESTSpecial Weather StatementFFCStewart, Webster30 min
Dec 2, 6:35 AM ESTSevere Thunderstorm WarningFFCStewart, Webster25 min
Dec 2, 6:38 AM ESTSpecial Weather StatementFFCTwiggs37 min
Dec 2, 7:05 AM ESTSpecial Weather StatementFFCWilkinson25 min
Dec 2, 7:08 AM ESTSpecial Weather StatementFFCToombs37 min
Dec 2, 7:57 AM ESTRiver Flood WarningFFCGwinnett94 min
Dec 2, 10:34 AM ESTSpecial Weather StatementFFCTelfair, Wheeler41 min
Dec 2, 11:14 AM ESTSpecial Weather StatementFFCDooly, Pulaski46 min
Dec 2, 11:51 AM ESTSpecial Weather StatementFFCToombs24 min
Dec 2, 11:59 AM ESTAreal Flood WarningFFCCrisp12 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2018Every severe thunderstorm warning in 2018

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.