Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 406, NWS Atlanta, GA

June 28, 2011Crisp County, Sumter County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 28, 2011, 4:50 PM EDT for Crisp County, Sumter 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: Jun 28, 2011, 4:50 PM EDT (20:50 UTC)
Expired: Jun 28, 2011, 5:30 PM EDT
In force: 40 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Crisp County, GA, Sumter County, GA

The radar

The Robins AFB radar (KJGX), 100 km from the middle of the area, began a volume at 20:52 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

Time	Report	Where	Remark
Jun 28, 5:10 PM EDT	TSTM WND DMG	Cordele, GA	1 TREE DOWN AT DRAYTON ROAD.

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, 8.8 hours before the alert went out and 171 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2253 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 734 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -4 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.

214 
WUUS52 KFFC 282050
SVRFFC
GAC081-261-282130-
/O.NEW.KFFC.SV.W.0406.110628T2050Z-110628T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
450 PM EDT TUE JUN 28 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CRISP COUNTY IN CENTRAL GEORGIA
  SOUTHEASTERN SUMTER COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 530 PM EDT

* AT 445 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 NEAR DESOTO...
  MOVING SOUTHEAST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO  
  COBB...LAKE BLACKSHEAR...GEORGIA VETERANS MEMORIAL STATE PARK...
  AND RAINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT 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.

&&

LAT...LON 3183 8388 3184 8394 3185 8395 3191 8394
      3191 8405 3194 8408 3205 8397 3203 8396
      3203 8387 3192 8368 3180 8380
TIME...MOT...LOC 2049Z 311DEG 5KT 3197 8397

$$

1 follow-up statement

814 
WWUS52 KFFC 282119
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
519 PM EDT TUE JUN 28 2011

GAC261-282128-
/O.CAN.KFFC.SV.W.0406.000000T0000Z-110628T2130Z/
SUMTER GA-
519 PM EDT TUE JUN 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SUMTER COUNTY 
HAS BEEN CANCELLED...

THE THUNDERSTORM THAT EARLIER PROMPTED THE WARNING FOR THIS REGION 
HAS MOVED EAST INTO CRISP COUNTY AND WEAKENED.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT 
UNTIL AFTER 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.

LAT...LON 3183 8388 3184 8394 3185 8395 3190 8394
      3192 8392 3193 8393 3202 8388 3192 8368
      3180 8380
TIME...MOT...LOC 2118Z 311DEG 5KT 3194 8393

$$

GAC081-282130-
/O.CON.KFFC.SV.W.0406.000000T0000Z-110628T2130Z/
CRISP GA-
519 PM EDT TUE JUN 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CRISP COUNTY...

AT 517 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
RAINES...MOVING SOUTHEAST AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FORT
EARLY...WENONA AND CORDELE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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.

&&

LAT...LON 3183 8388 3184 8394 3185 8395 3190 8394
      3192 8392 3193 8393 3202 8388 3192 8368
      3180 8380
TIME...MOT...LOC 2118Z 311DEG 5KT 3194 8393

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 1:20 AM EDT	Special Weather Statement	FFC	Lumpkin, White	25 min
Jun 28, 1:45 AM EDT	Special Weather Statement	FFC	Lumpkin, White	30 min
Jun 28, 2:13 AM EDT	Special Weather Statement	FFC	White	47 min
Jun 28, 3:32 AM EDT	Special Weather Statement	FFC	Towns	28 min
Jun 28, 4:02 AM EDT	Special Weather Statement	FFC	Towns	28 min
Jun 28, 9:38 AM EDT	Special Weather Statement	FFC	Paulding, Polk	22 min
Jun 28, 12:57 PM EDT	Special Weather Statement	FFC	Harris	33 min
Jun 28, 1:43 PM EDT	Special Weather Statement	FFC	Talbot	47 min
Jun 28, 1:50 PM EDT	Special Weather Statement	FFC	Telfair	25 min
Jun 28, 2:20 PM EDT	Special Weather Statement	FFC	Crawford	25 min
Jun 28, 2:32 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	43 min
Jun 28, 2:42 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion	22 min
Jun 28, 3:12 PM EDT	Special Weather Statement	FFC	Houston	33 min
Jun 28, 3:14 PM EDT	Special Weather Statement	FFC	Emanuel	31 min
Jun 28, 3:35 PM EDT	Special Weather Statement	FFC	Stewart	25 min
Jun 28, 3:41 PM EDT	Special Weather Statement	FFC	Wilcox	34 min
Jun 28, 4:30 PM EDT	Special Weather Statement	FFC	Emanuel, Montgomery, Toombs, Treutlen	45 min
Jun 28, 4:41 PM EDT	Special Weather Statement	FFC	Crisp	49 min
Jun 28, 4:55 PM EDT	Special Weather Statement	FFC	Pulaski	50 min
Jun 28, 5:01 PM EDT	Special Weather Statement	FFC	Toombs	44 min
Jun 28, 5:45 PM EDT	Special Weather Statement	FFC	Laurens	30 min
Jun 28, 6:01 PM EDT	Severe Thunderstorm Warning	FFC	Laurens	29 min
Jun 28, 6:16 PM EDT	Special Weather Statement	FFC	Wheeler	44 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011 Every severe thunderstorm warning in 2011

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.