Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 84, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 27, 2012, 4:40 PM EDT for Chattooga County, Floyd County, Georgia. It was in force for 35 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, 4:40 PM EDT (20:40 UTC)
- Expired
- Apr 27, 2012, 5:15 PM EDT
- In force
- 35 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Chattooga County, GA, Floyd County, GA
The radar
The Northeast Alabama radar (KHTX), 87 km from the middle of the area, began a volume at 20:42 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
Birmingham, AL (KBMX), launched 12:00Z, 8.7 hours before the alert went out and 188 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
- 540 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 550 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
502
WUUS52 KFFC 272040
SVRFFC
GAC055-115-272115-
/O.NEW.KFFC.SV.W.0084.120427T2040Z-120427T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
440 PM EDT FRI APR 27 2012
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CHATTOOGA COUNTY IN NORTHWEST GEORGIA
WEST CENTRAL FLOYD COUNTY IN NORTHWEST GEORGIA
* UNTIL 515 PM EDT
* AT 438 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 11 MILES
SOUTHWEST OF SUMMERVILLE...MOVING EAST AT 15 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MENLO...CHATTOOGAVILLE...LYERLY...BERRYTON...COOSA...HOLLAND...
TIDINGS AND JAMES H. FLOYD STATE PARK.
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 3446 8523 3424 8531 3430 8547 3446 8551
3451 8551
TIME...MOT...LOC 2039Z 287DEG 12KT 3441 8552
$$1 follow-up statement
028
WWUS52 KFFC 272107
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
507 PM EDT FRI APR 27 2012
GAC055-115-272115-
/O.CON.KFFC.SV.W.0084.000000T0000Z-120427T2115Z/
CHATTOOGA GA-FLOYD GA-
507 PM EDT FRI APR 27 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL FLOYD AND SOUTHWESTERN CHATTOOGA COUNTIES...
AT 501 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM NEAR LYERLY...MOVING EAST AT 15 MPH.
ALTHOUGH THIS STORM HAS WEAKENED SOMEWHAT...IT IS STILL CAPABLE OF
PRODUCING UP TO QUARTER SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HOLLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.
&&
LAT...LON 3429 8529 3434 8548 3445 8550 3446 8540
3440 8525
TIME...MOT...LOC 2106Z 291DEG 13KT 3437 8539
$$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, 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, 7:07 PM EDT | Severe Thunderstorm Warning | FFC | Madison | 38 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.