Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 74, NWS Atlanta, GA

April 3, 2012Banks County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 3, 2012, 4:55 PM EDT for Banks County, Georgia. It was in force for 21 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: Apr 3, 2012, 4:55 PM EDT (20:55 UTC)
Expired: Apr 3, 2012, 5:16 PM EDT
In force: 21 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Banks County, GA

The radar

The Greer radar (KGSP), 127 km from the middle of the area, began a volume at 20:58 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
Apr 3, 5:00 PM EDT	HAIL 0.5	3 Ne Banks Crossing, 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, 8.9 hours before the alert went out and 144 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: 857 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 920 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -29 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.

067 
WUUS52 KFFC 032055
SVRFFC
GAC011-032145-
/O.NEW.KFFC.SV.W.0074.120403T2055Z-120403T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
455 PM EDT TUE APR 3 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BANKS COUNTY IN NORTHEAST GEORGIA

* UNTIL 545 PM EDT

* AT 452 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 7 MILES
  SOUTHEAST OF HOMER...MOVING NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

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...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 3439 8337 3433 8339 3427 8334 3425 8333
      3420 8338 3420 8341 3426 8348 3426 8352
      3430 8356 3443 8338
TIME...MOT...LOC 2056Z 241DEG 8KT 3428 8340

$$

1 follow-up statement

648 
WWUS52 KFFC 032116
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
516 PM EDT TUE APR 3 2012

GAC011-032127-
/O.CAN.KFFC.SV.W.0074.000000T0000Z-120403T2145Z/
BANKS GA-
516 PM EDT TUE APR 3 2012

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

.

THE SEVERE THUNDERSTORM HAS MOVED OUT OF SOUTHEASTERN BANKS  COUNTY
AND SEVERE WEATHER IS NO LONGER EXPECTED.

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 3439 8337 3433 8339 3427 8334 3425 8333
      3420 8338 3420 8341 3426 8348 3426 8352
      3430 8356 3443 8338
TIME...MOT...LOC 2117Z 241DEG 8KT 3430 8335

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 12:44 PM EDT	Special Weather Statement	FFC	Fannin	31 min
Apr 3, 12:46 PM EDT	Special Weather Statement	FFC	Lumpkin	29 min
Apr 3, 1:13 PM EDT	Special Weather Statement	FFC	Cherokee	32 min
Apr 3, 1:15 PM EDT	Special Weather Statement	FFC	Lumpkin, Union	30 min
Apr 3, 1:38 PM EDT	Special Weather Statement	FFC	Cherokee, Dawson, Fannin, Gilmer, Lumpkin, Pickens and 2 more	37 min
Apr 3, 2:15 PM EDT	Special Weather Statement	FFC	Dawson, Lumpkin, Towns, Union	30 min
Apr 3, 2:43 PM EDT	Special Weather Statement	FFC	Dawson, Lumpkin, Towns, Union, White	32 min
Apr 3, 3:09 PM EDT	Special Weather Statement	FFC	Dawson, Forsyth, Hall, Lumpkin, Towns, White	36 min
Apr 3, 3:41 PM EDT	Special Weather Statement	FFC	Hall	34 min
Apr 3, 4:03 PM EDT	Severe Thunderstorm Warning	FFC	Hall, Jackson	42 min
Apr 3, 4:27 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Jackson	16 min
Apr 3, 6:19 PM EDT	Special Weather Statement	FFC	Barrow, Clarke	26 min
Apr 3, 6:41 PM EDT	Special Weather Statement	FFC	Barrow, Clarke, Oconee, Oglethorpe	34 min
Apr 3, 7:23 PM EDT	Special Weather Statement	FFC	Barrow, Clarke	37 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.