Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 82, NWS Atlanta, GA

April 26, 2012Towns County, Union County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 26, 2012, 6:44 PM EDT for Towns County, Union County, Georgia. It was in force for 46 min. 2 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
Apr 26, 2012, 6:44 PM EDT (22:44 UTC)
Expired
Apr 26, 2012, 7:30 PM EDT
In force
46 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Towns County, GA, Union County, GA

The radar

The Greer radar (KGSP), 137 km from the middle of the area, began a volume at 22:45 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
Apr 26, 7:06 PM EDTHAIL 1Hiawassee, GATHE PUBLIC REPORTED QUARTER SIZED HAIL IN THE CITY OF HIAWASSEE.
Apr 26, 7:08 PM EDTHAIL 0.5Macedonia, GADIME SIZED HAIL WAS REPORTED BY THE PUBLIC AT 708 PM.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.7 hours before the alert went out and 296 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, Nashville Metro, TN at 12:00Z on 2012-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 824 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, Nashville Metro, TN at 12:00Z on 2012-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 317 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
824 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
317 m²/s²
0-3 km storm-relative helicity
344 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.1

Open this sounding in Storm Lab

The text

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

439 
WUUS52 KFFC 262244
SVRFFC
GAC281-291-262330-
/O.NEW.KFFC.SV.W.0082.120426T2244Z-120426T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
644 PM EDT THU APR 26 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN UNION COUNTY IN NORTH CENTRAL GEORGIA
  TOWNS COUNTY IN NORTHEAST GEORGIA

* UNTIL 730 PM EDT

* AT 641 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 YOUNG
  HARRIS...MOVING SOUTHEAST AT 40 MPH.

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

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 3499 8354 3495 8354 3493 8359 3492 8359
      3488 8365 3482 8365 3480 8367 3478 8383
      3473 8383 3473 8389 3474 8394 3473 8397
      3499 8408 3500 8356
TIME...MOT...LOC 2244Z 311DEG 36KT 3498 8386

$$
1 follow-up statement
763 
WWUS52 KFFC 262316
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
716 PM EDT THU APR 26 2012

GAC291-262325-
/O.CAN.KFFC.SV.W.0082.000000T0000Z-120426T2330Z/
UNION GA-
716 PM EDT THU APR 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN UNION COUNTY IS
CANCELLED...

THE SEVERE STORM THREAT HAS MOVED EAST 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 3499 8354 3498 8354 3495 8354 3493 8359
      3488 8365 3482 8365 3480 8367 3479 8372
      3480 8378 3491 8382 3490 8385 3492 8391
      3497 8394 3499 8393
TIME...MOT...LOC 2315Z 318DEG 24KT 3490 8366

$$

GAC281-262330-
/O.CON.KFFC.SV.W.0082.000000T0000Z-120426T2330Z/
TOWNS GA-
716 PM EDT THU APR 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR TOWNS COUNTY...

AT 715 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 
MACEDONIA...AND MOVING EAST AND SOUTHEAST AT 30 MPH. THIS STORM WILL 
PUSH EAST OF TOWNS COUNTY BY 730 PM AND END THE SEVERE WEATHER 
THREAT AT THAT TIME. 

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PLUM
ORCHARD GAP SHELTER.

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 3499 8354 3498 8354 3495 8354 3493 8359
      3488 8365 3482 8365 3480 8367 3479 8372
      3480 8378 3491 8382 3490 8385 3492 8391
      3497 8394 3499 8393
TIME...MOT...LOC 2315Z 318DEG 24KT 3490 8366

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 9:16 AM EDTSpecial Weather StatementFFCFannin, Towns, Union59 min
Apr 26, 9:34 AM EDTSevere Thunderstorm WarningFFCFannin, Lumpkin, Towns, Union, White41 min
Apr 26, 10:14 AM EDTSpecial Weather StatementFFCTowns31 min
Apr 26, 6:28 PM EDTSpecial Weather StatementFFCTowns, Union47 min
Apr 26, 7:12 PM EDTSpecial Weather StatementFFCFannin, Murray33 min
Apr 26, 7:29 PM EDTSevere Thunderstorm WarningFFCFannin21 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.