Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 4, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jan 21, 2012, 10:34 AM EST for Oconee County, South Carolina; Habersham County, Rabun County, Stephens County, Georgia. It was in force for 36 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
- Jan 21, 2012, 10:34 AM EST (15:34 UTC)
- Expired
- Jan 21, 2012, 11:10 AM EST
- In force
- 36 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Habersham County, GA, Rabun County, GA, Stephens County, GA, Oconee County, SC
The radar
The Greer radar (KGSP), 77 km from the middle of the area, began a volume at 15:35 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 |
|---|---|---|---|
| Jan 21, 10:45 AM EST | TSTM WND DMG | Clayton, GA | COUNTY REPORTS TREES DOWN HIGHWAY 76. |
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, 3.6 hours before the alert went out and 203 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
- 238 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 505 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 265 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
140
WUUS52 KGSP 211534
SVRGSP
GAC137-241-257-SCC073-211630-
/O.NEW.KGSP.SV.W.0004.120121T1534Z-120121T1630Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1034 AM EST SAT JAN 21 2012
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN STEPHENS COUNTY IN NORTHEAST GEORGIA...
SOUTHERN RABUN COUNTY IN NORTHEAST GEORGIA...
NORTHEASTERN HABERSHAM COUNTY IN NORTHEAST GEORGIA...
OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...
* UNTIL 1130 AM EST
* AT 1034 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
NACOOHE LAKE...OR 10 MILES NORTH OF CLARKESVILLE...MOVING EAST AT
45 MPH.
* LOCATIONS IMPACTED INCLUDE...
LAKEMONT AND TALLULAH FALLS...
TOCCOA...
LONG CREEK...
PINE MOUNTAIN...
MOUNTAIN REST AND WESTMINSTER...
WALHALLA AND OAKWAY...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM PASSES.
TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR
AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER...
1 8 7 7...6 3 3...6 7 7 2.
&&
LAT...LON 3488 8359 3499 8294 3494 8290 3487 8291
3478 8288 3474 8290 3473 8286 3470 8287
3464 8283 3463 8285 3462 8284 3455 8291
3455 8321 3460 8356
TIME...MOT...LOC 1534Z 266DEG 39KT 3475 8346
$$
HG2 follow-up statements
102
WWUS52 KGSP 211551
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1051 AM EST SAT JAN 21 2012
GAC137-241-211600-
/O.CAN.KGSP.SV.W.0004.000000T0000Z-120121T1630Z/
RABUN GA-HABERSHAM GA-
1051 AM EST SAT JAN 21 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HABERSHAM AND
SOUTHERN RABUN COUNTIES IS CANCELLED...
AT 1050 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM HAD MOVED EAST OF HABERSHAM AND RABUN
COUNTIES. WINDS MAY STILL GUST BETWEEN 30 AND 40 MPH AT TIMES
THROUGH 1130 AM.
LAT...LON 3466 8338 3469 8334 3473 8335 3482 8331
3481 8327 3488 8323 3493 8312 3496 8312
3499 8295 3494 8290 3485 8291 3478 8288
3474 8290 3473 8286 3470 8287 3464 8283
3457 8289 3455 8291 3455 8322 3460 8338
TIME...MOT...LOC 1550Z 270DEG 39KT 3469 8326
$$
GAC257-SCC073-211630-
/O.CON.KGSP.SV.W.0004.000000T0000Z-120121T1630Z/
STEPHENS GA-OCONEE SC-
1051 AM EST SAT JAN 21 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM EST
FOR OCONEE AND NORTHERN STEPHENS COUNTIES...
AT 1050 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED 7 MILES SOUTHWEST OF LONG CREEK...OR 8 MILES NORTH OF
TOCCOA...MOVING EAST AT 45 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MOUNTAIN REST...WESTMINSTER...WALHALLA...OAKWAY...SALEM...SENECA...
LAKE KEOWEE AND TOWNVILLE
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND
DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR
WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM WINDOWS AND
DOORS UNTIL THE STORM PASSES.
&&
LAT...LON 3466 8338 3469 8334 3473 8335 3482 8331
3481 8327 3488 8323 3493 8312 3496 8312
3499 8295 3494 8290 3485 8291 3478 8288
3474 8290 3473 8286 3470 8287 3464 8283
3457 8289 3455 8291 3455 8322 3460 8338
TIME...MOT...LOC 1550Z 270DEG 39KT 3469 8326
$$
HG710
WWUS52 KGSP 211610
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1110 AM EST SAT JAN 21 2012
GAC257-SCC073-211620-
/O.CAN.KGSP.SV.W.0004.000000T0000Z-120121T1630Z/
STEPHENS GA-OCONEE SC-
1110 AM EST SAT JAN 21 2012
...THE SEVERE THUNDERSTORM WARNING FOR OCONEE AND NORTHERN STEPHENS
COUNTIES IS CANCELLED...
AT 1110 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE PREVIOUSLY SEVERE THUNDERSTORM OVER EASTERN OCONEE COUNTY HAD
WEAKENED BELOW SEVERE LIMITS.
LAT...LON 3466 8338 3469 8334 3473 8335 3482 8331
3481 8327 3488 8323 3493 8312 3496 8312
3499 8295 3494 8290 3485 8291 3478 8288
3474 8290 3473 8286 3470 8287 3464 8283
3457 8289 3455 8291 3455 8322 3460 8338
TIME...MOT...LOC 1610Z 270DEG 39KT 3469 8300
$$
HGThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 9:42 AM EST | Special Weather Statement | GSP | Oconee, Pickens | 63 min |
| Jan 21, 10:25 AM EST | Special Weather Statement | GSP | Oconee | 50 min |
| Jan 21, 11:14 AM EST | Special Weather Statement | GSP | Greenville, Pickens | 31 min |
| Jan 21, 11:16 AM EST | Special Weather Statement | GSP | Anderson | 44 min |
| Jan 21, 12:05 PM EST | Special Weather Statement | GSP | Abbeville | 25 min |
| Jan 21, 12:08 PM EST | Special Weather Statement | GSP | Laurens, Union | 37 min |
| Jan 21, 12:25 PM EST | Special Weather Statement | GSP | Abbeville, Greenwood, Laurens | 35 min |
| Jan 21, 12:36 PM EST | Special Weather Statement | GSP | Chester, Union, York | 24 min |
| Jan 21, 12:53 PM EST | Special Weather Statement | GSP | Greenwood | 37 min |
| Jan 21, 12:29 PM EST | Special Weather Statement | GSP | Elbert | 31 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2012Severe Thunderstorm Warnings in South Carolina, 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.