Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 228, NWS Atlanta, GA

July 5, 2012Chattooga County, Floyd County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 5, 2012, 7:23 PM EDT for Chattooga County, Floyd County, Georgia. It was in force for 52 min. 3 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: Jul 5, 2012, 7:23 PM EDT (23:23 UTC)
Expired: Jul 5, 2012, 8:15 PM EDT
In force: 52 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Chattooga County, GA, Floyd County, GA

The radar

The Northeast Alabama radar (KHTX), 103 km from the middle of the area, began a volume at 23:23 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 5, 7:40 PM EDT	HAIL 1	Armuchee, GA	NUMEROUS REPORTS OF QUARTER SIZED HAIL IN THE ARMUCHEE AREA.
Jul 5, 7:46 PM EDT	HAIL 1	Rome, GA
Jul 5, 7:50 PM EDT	HAIL 1.75	2 N Rome, GA

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, 11.4 hours before the alert went out and 129 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: 1009 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 1299 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: 5 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.

178 
WUUS52 KFFC 052323
SVRFFC
GAC055-115-060015-
/O.NEW.KFFC.SV.W.0228.120705T2323Z-120706T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
723 PM EDT THU JUL 5 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHATTOOGA COUNTY IN NORTHWEST GEORGIA
  FLOYD COUNTY IN NORTHWEST GEORGIA

* UNTIL 815 PM EDT

* AT 720 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 9 MILES
  NORTHWEST OF SHANNON...MOVING SOUTH AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

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 3445 8533 3448 8509 3447 8509 3446 8511
      3443 8509 3442 8511 3440 8507 3417 8506
      3418 8543
TIME...MOT...LOC 2323Z 016DEG 8KT 3441 8521

$$

1 follow-up statement

750 
WWUS52 KFFC 052344
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
744 PM EDT THU JUL 5 2012

GAC055-052353-
/O.CAN.KFFC.SV.W.0228.000000T0000Z-120706T0015Z/
CHATTOOGA GA-
744 PM EDT THU JUL 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHATTOOGA COUNTY
IS CANCELLED...

THE STORM HAS MOVED SOUTH OF THE COUNTY.

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 3430 8538 3431 8538 3436 8535 3443 8518
      3447 8516 3447 8509 3446 8511 3443 8509
      3442 8511 3440 8507 3417 8506 3418 8543
TIME...MOT...LOC 2343Z 002DEG 13KT 3434 8518

$$

GAC115-060015-
/O.CON.KFFC.SV.W.0228.000000T0000Z-120706T0015Z/
FLOYD GA-
744 PM EDT THU JUL 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR FLOYD COUNTY...

AT 740 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 
ROME...AND MOVING SOUTH AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROME...
COOSA AND LINDALE.

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 3430 8538 3431 8538 3436 8535 3443 8518
      3447 8516 3447 8509 3446 8511 3443 8509
      3442 8511 3440 8507 3417 8506 3418 8543
TIME...MOT...LOC 2343Z 002DEG 13KT 3434 8518

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 2:23 PM EDT	Special Weather Statement	FFC	Towns	37 min
Jul 5, 2:38 PM EDT	Special Weather Statement	FFC	Dawson	22 min
Jul 5, 3:21 PM EDT	Special Weather Statement	FFC	Schley	24 min
Jul 5, 3:46 PM EDT	Special Weather Statement	FFC	Dooly, Marion, Schley, Sumter	29 min
Jul 5, 3:59 PM EDT	Special Weather Statement	FFC	Harris	31 min
Jul 5, 4:20 PM EDT	Severe Thunderstorm Warning	FFC	Marion, Schley, Taylor	40 min
Jul 5, 4:34 PM EDT	Special Weather Statement	FFC	Towns	26 min
Jul 5, 4:41 PM EDT	Special Weather Statement	FFC	Webster	34 min
Jul 5, 4:43 PM EDT	Severe Thunderstorm Warning	FFC	Sumter, Webster	47 min
Jul 5, 4:55 PM EDT	Special Weather Statement	FFC	Muscogee	35 min
Jul 5, 5:01 PM EDT	Special Weather Statement	FFC	Towns	29 min
Jul 5, 5:02 PM EDT	Special Weather Statement	FFC	Marion	28 min
Jul 5, 5:06 PM EDT	Special Weather Statement	FFC	Taylor	24 min
Jul 5, 5:19 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Muscogee	41 min
Jul 5, 5:33 PM EDT	Special Weather Statement	FFC	Webster	27 min
Jul 5, 5:49 PM EDT	Severe Thunderstorm Warning	FFC	Stewart	41 min
Jul 5, 5:58 PM EDT	Special Weather Statement	FFC	Dodge	32 min
Jul 5, 6:04 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge	41 min
Jul 5, 6:22 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Oglethorpe	23 min
Jul 5, 6:34 PM EDT	Special Weather Statement	FFC	Glascock, Jefferson	26 min
Jul 5, 6:48 PM EDT	Special Weather Statement	FFC	Troup	27 min
Jul 5, 7:04 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd, Walker	26 min
Jul 5, 7:14 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether, Troup	31 min
Jul 5, 7:17 PM EDT	Severe Thunderstorm Warning	FFC	Henry, Newton, Rockdale	28 min
Jul 5, 7:26 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether, Troup	23 min
Jul 5, 7:33 PM EDT	Special Weather Statement	FFC	Butts	27 min
Jul 5, 7:35 PM EDT	Special Weather Statement	FFC	Coweta	25 min
Jul 5, 7:46 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Warren, Washington	44 min
Jul 5, 7:50 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Jasper, Newton	25 min
Jul 5, 7:56 PM EDT	Special Weather Statement	FFC	Fayette	34 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012 Every 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.