Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 445, NWS Atlanta, GA

July 13, 2011Newton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 13, 2011, 6:26 PM EDT for Newton County, Georgia. It was in force for 36 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: Jul 13, 2011, 6:26 PM EDT (22:26 UTC)
Expired: Jul 13, 2011, 7:02 PM EDT
In force: 36 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Newton County, GA

The radar

The Atlanta radar (KFFC), 65 km from the middle of the area, began a volume at 22:29 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
Jul 13, 6:30 PM EDT	TSTM WND DMG	8 S Covington, GA	AROUND 8 TO 9 TREES DOWN ACROSS PARTS OF SOUTH NEWTON COUNTY... SOUTH OF COVINGTON. PEA SIZED HAIL ALSO REPORTED IN THIS AREA AROUND 635 PM.

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, 10.4 hours before the alert went out and 59 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: 2823 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 810 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 81 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.

727 
WUUS52 KFFC 132226
SVRFFC
GAC217-132315-
/O.NEW.KFFC.SV.W.0445.110713T2226Z-110713T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
626 PM EDT WED JUL 13 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN NEWTON COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 715 PM EDT

* AT 621 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   
  PORTERDALE...AND SHOWED LITTLE MOVEMENT.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  STARRSVILLE AND STEWART.

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 3360 8392 3353 8375 3344 8381 3344 8383
      3342 8383 3341 8385 3341 8384 3339 8385
      3343 8392 3348 8395 3350 8404
TIME...MOT...LOC 2226Z 277DEG 3KT 3350 8390

$$

1 follow-up statement

686 
WWUS52 KFFC 132302
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
702 PM EDT WED JUL 13 2011

GAC217-132313-
/O.CAN.KFFC.SV.W.0445.000000T0000Z-110713T2315Z/
NEWTON GA-
702 PM EDT WED JUL 13 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN NEWTON COUNTY IS
CANCELLED...

THE THUNDERSTORM HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE 
SEVERE WEATHER. HOWEVER...STRONG GUSTY WINDS UP TO 45 MPH...VERY 
HEAVY RAIN...AND SMALL HAIL ARE STILL POSSIBLE WITH THIS STORM.

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 3360 8392 3353 8375 3344 8381 3344 8383
      3342 8383 3341 8385 3341 8384 3339 8385
      3343 8392 3348 8395 3350 8404
TIME...MOT...LOC 2303Z 277DEG 3KT 3350 8386

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 2:14 PM EDT	Special Weather Statement	FFC	Catoosa	46 min
Jul 13, 2:32 PM EDT	Special Weather Statement	FFC	Pickens	28 min
Jul 13, 2:36 PM EDT	Special Weather Statement	FFC	Clarke, Oconee	24 min
Jul 13, 2:49 PM EDT	Special Weather Statement	FFC	Sumter	26 min
Jul 13, 2:55 PM EDT	Special Weather Statement	FFC	Muscogee	35 min
Jul 13, 2:56 PM EDT	Special Weather Statement	FFC	Catoosa, Murray, Whitfield	49 min
Jul 13, 3:01 PM EDT	Special Weather Statement	FFC	Dawson	29 min
Jul 13, 3:05 PM EDT	Special Weather Statement	FFC	Clarke, Oconee	25 min
Jul 13, 3:20 PM EDT	Special Weather Statement	FFC	Oglethorpe	25 min
Jul 13, 3:23 PM EDT	Special Weather Statement	FFC	Forsyth	37 min
Jul 13, 3:28 PM EDT	Special Weather Statement	FFC	Muscogee	32 min
Jul 13, 3:35 PM EDT	Severe Thunderstorm Warning	FFC	Muscogee	17 min
Jul 13, 3:44 PM EDT	Special Weather Statement	FFC	Sumter	31 min
Jul 13, 3:45 PM EDT	Special Weather Statement	FFC	Oglethorpe	30 min
Jul 13, 4:43 PM EDT	Special Weather Statement	FFC	Wilkes	47 min
Jul 13, 4:47 PM EDT	Special Weather Statement	FFC	Floyd	43 min
Jul 13, 5:24 PM EDT	Special Weather Statement	FFC	Fayette	36 min
Jul 13, 5:42 PM EDT	Special Weather Statement	FFC	Lamar	48 min
Jul 13, 5:43 PM EDT	Severe Thunderstorm Warning	FFC	Morgan, Putnam	47 min
Jul 13, 6:03 PM EDT	Special Weather Statement	FFC	Clayton	27 min
Jul 13, 6:09 PM EDT	Special Weather Statement	FFC	Talbot	51 min
Jul 13, 6:13 PM EDT	Severe Thunderstorm Warning	FFC	Talbot, Taylor	47 min
Jul 13, 6:22 PM EDT	Special Weather Statement	FFC	Newton	23 min
Jul 13, 6:29 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry	46 min
Jul 13, 6:32 PM EDT	Special Weather Statement	FFC	Hancock	43 min
Jul 13, 6:46 PM EDT	Special Weather Statement	FFC	Crisp	29 min
Jul 13, 6:52 PM EDT	Special Weather Statement	FFC	Laurens	23 min
Jul 13, 7:17 PM EDT	Special Weather Statement	FFC	Meriwether	43 min
Jul 13, 7:19 PM EDT	Special Weather Statement	FFC	Dodge	26 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.