Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 140, NWS Atlanta, GA

May 31, 2012Meriwether County, Pike County, Upson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 31, 2012, 7:48 PM EDT for Meriwether County, Pike County, Upson County, Georgia. It was in force for 42 min. 4 reports 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 31, 2012, 7:48 PM EDT (23:48 UTC)
Expired
May 31, 2012, 8:30 PM EDT
In force
42 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Meriwether County, GA, Pike County, GA, Upson County, GA

The radar

The Atlanta radar (KFFC), 54 km from the middle of the area, began a volume at 23:49 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
May 31, 7:50 PM EDTTSTM WND DMGThomaston, GA911 CENTER REPORTS 5-7 TREES DOWN IN THE THOMASTON AREA NEAR HIGHWAY 19.
May 31, 7:50 PM EDTTSTM WND DMGThomaston, GA911 CENTER REPORTS 5 TREES DOWN IN THE THOMASTON AREA.
May 31, 8:00 PM EDTTSTM WND DMGMolena, GA911 CENTER REPORTS 2 TREES DOWN IN THE MOLENA AREA.
May 31, 8:15 PM EDTTSTM WND DMG6 W Zebulon, GA911 CENTER REPORTS 1 TREE DOWN IN CONCORD.

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 12:00Z, 11.8 hours before the alert went out and 53 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 2012-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 87 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 12:00Z on 2012-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939Sfc1 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
87 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
2029 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

811 
WUUS52 KFFC 312348
SVRFFC
GAC199-231-293-010030-
/O.NEW.KFFC.SV.W.0140.120531T2348Z-120601T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
748 PM EDT THU MAY 31 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MERIWETHER COUNTY IN WEST CENTRAL GEORGIA
  PIKE COUNTY IN WEST CENTRAL GEORGIA
  WESTERN UPSON COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 830 PM EDT

* AT 744 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  SOUTHWEST OF THOMASTON...MOVING NORTH AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MOLENA...CONCORD...MEANSVILLE AND ZEBULON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

&&

LAT...LON 3315 8455 3314 8425 3277 8432 3279 8435
      3277 8436 3278 8438 3284 8442 3282 8445
      3285 8447 3286 8449 3287 8447 3288 8449
      3285 8456
TIME...MOT...LOC 2348Z 185DEG 15KT 3287 8442

$$
2 follow-up statements
738 
WWUS52 KFFC 010012
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
812 PM EDT THU MAY 31 2012

GAC199-293-010022-
/O.CAN.KFFC.SV.W.0140.000000T0000Z-120601T0030Z/
MERIWETHER GA-UPSON GA-
812 PM EDT THU MAY 31 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN UPSON AND SOUTHEASTERN
MERIWETHER COUNTIES IS CANCELLED...

THE SEVERE THUNDERSTORM THREAT HAS MOVED OUT OF THE AREA.

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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

LAT...LON 3305 8452 3308 8453 3308 8452 3310 8453
      3311 8452 3315 8451 3314 8425 3299 8428
      3300 8430 3299 8430 3299 8448 3297 8450
      3297 8452 3304 8454
TIME...MOT...LOC 0012Z 186DEG 26KT 3309 8439

$$

GAC231-010030-
/O.CON.KFFC.SV.W.0140.000000T0000Z-120601T0030Z/
PIKE GA-
812 PM EDT THU MAY 31 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR PIKE COUNTY...

AT 808 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR
LIFSEY SPRINGS...MOVING NORTH AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HILLTOP
AND ZEBULON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

&&

LAT...LON 3305 8452 3308 8453 3308 8452 3310 8453
      3311 8452 3315 8451 3314 8425 3299 8428
      3300 8430 3299 8430 3299 8448 3297 8450
      3297 8452 3304 8454
TIME...MOT...LOC 0012Z 186DEG 26KT 3309 8439

$$
816 
WWUS52 KFFC 010031
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
831 PM EDT THU MAY 31 2012

GAC231-010039-
/O.EXP.KFFC.SV.W.0140.000000T0000Z-120601T0030Z/
PIKE GA-
831 PM EDT THU MAY 31 2012

...THE SEVERE THUNDERSTORM WARNING FOR PIKE COUNTY EXPIRES AT 830 PM
EDT...

AT 826 PM EDT...DOPPLER RADAR INDICATED THAT THE STORM NEAR ZEBULON 
HAD WEAKENED. THUS THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED 
TO EXPIRE. 

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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

LAT...LON 3305 8452 3308 8453 3308 8452 3310 8453
      3311 8452 3315 8451 3314 8425 3299 8428
      3300 8430 3299 8430 3299 8448 3297 8450
      3297 8452 3304 8454
TIME...MOT...LOC 0029Z 186DEG 26KT 3319 8437

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 9:55 PM EDTSpecial Weather StatementFFCToombs50 min
May 30, 10:02 PM EDTSpecial Weather StatementFFCHouston28 min
May 31, 12:53 PM EDTSpecial Weather StatementFFCBleckley37 min
May 31, 4:34 PM EDTSpecial Weather StatementFFCEmanuel26 min
May 31, 4:58 PM EDTSpecial Weather StatementFFCJefferson32 min
May 31, 5:06 PM EDTSevere Thunderstorm WarningFFCJefferson39 min
May 31, 5:16 PM EDTSpecial Weather StatementFFCGilmer29 min
May 31, 5:24 PM EDTSpecial Weather StatementFFCEmanuel36 min
May 31, 5:44 PM EDTSpecial Weather StatementFFCGilmer61 min
May 31, 6:39 PM EDTSpecial Weather StatementFFCGlascock, Warren36 min
May 31, 6:44 PM EDTSpecial Weather StatementFFCTaylor31 min
May 31, 6:55 PM EDTSevere Thunderstorm WarningFFCGlascock, Warren50 min
May 31, 7:16 PM EDTSpecial Weather StatementFFCUpson29 min
May 31, 7:59 PM EDTSpecial Weather StatementFFCWheeler31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Every severe thunderstorm warning in 2012

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.