Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 86, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 27, 2012, 7:07 PM EDT for Madison County, Georgia. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2012, 7:07 PM EDT (23:07 UTC)
- Expired
- Apr 27, 2012, 7:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
County Madison County, GA
The radar
The Greer radar (KGSP), 122 km from the middle of the area, began a volume at 23:08 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.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 11.1 hours before the alert went out and 324 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.
- Mixed-layer CAPE
- 75 J/kg
- Mixed-layer CIN
- -239 J/kg
- Mixed-layer LCL
- 1255 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
775
WUUS52 KFFC 272307
SVRFFC
GAC195-272345-
/O.NEW.KFFC.SV.W.0086.120427T2307Z-120427T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
707 PM EDT FRI APR 27 2012
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MADISON COUNTY IN NORTHEAST GEORGIA
* UNTIL 745 PM EDT
* AT 704 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
NORTHWEST OF HULL...MOVING EAST AT 30 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ILA...COLBERT...DANIELSVILLE...COMER AND CARLTON.
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 3423 8307 3417 8309 3415 8305 3405 8298
3402 8307 3403 8311 3405 8313 3401 8319
3400 8328 3405 8339 3413 8335 3416 8336
3418 8339 3425 8309
TIME...MOT...LOC 2308Z 259DEG 26KT 3408 8335
$$1 follow-up statement
345
WWUS52 KFFC 272328
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
728 PM EDT FRI APR 27 2012
GAC195-272345-
/O.CON.KFFC.SV.W.0086.000000T0000Z-120427T2345Z/
MADISON GA-
728 PM EDT FRI APR 27 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR MADISON COUNTY...
AT 728 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING UP TO QUARTER
SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED
NEAR DANIELSVILLE...MOVING EAST AT 20 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARRISON AND PAOLI.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.
&&
LAT...LON 3423 8307 3417 8309 3412 8303 3411 8303
3407 8315 3404 8330 3405 8339 3413 8335
3416 8336 3425 8309
TIME...MOT...LOC 2329Z 250DEG 17KT 3413 8324
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 9:08 PM EDT | Special Weather Statement | FFC | Towns | 37 min |
| Apr 27, 3:20 PM EDT | Special Weather Statement | FFC | Chattooga | 25 min |
| Apr 27, 3:41 PM EDT | Special Weather Statement | FFC | Chattooga | 34 min |
| Apr 27, 4:11 PM EDT | Special Weather Statement | FFC | Chattooga | 34 min |
| Apr 27, 4:40 PM EDT | Severe Thunderstorm Warning | FFC | Chattooga, Floyd | 35 min |
| Apr 27, 5:15 PM EDT | Special Weather Statement | FFC | Chattooga | 30 min |
| Apr 27, 5:30 PM EDT | Special Weather Statement | FFC | Cobb | 30 min |
| Apr 27, 5:54 PM EDT | Special Weather Statement | FFC | Forsyth | 36 min |
| Apr 27, 6:30 PM EDT | Special Weather Statement | FFC | Gwinnett | 30 min |
| Apr 27, 6:47 PM EDT | Special Weather Statement | FFC | Clarke | 28 min |
| Apr 27, 7:05 PM EDT | Severe Thunderstorm Warning | FFC | Barrow, Jackson | 25 min |
| Apr 27, 7:27 PM EDT | Special Weather Statement | FFC | Hall, Jackson | 33 min |
| Apr 27, 7:46 PM EDT | Special Weather Statement | FFC | Madison | 14 min |
| Apr 27, 7:54 PM EDT | Special Weather Statement | FFC | Madison | 36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.