Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 228, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Aug 9, 2012, 7:31 PM EDT for 4 counties in South Carolina; Burke County, Georgia. It was in force for 59 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
- Aug 9, 2012, 7:31 PM EDT (23:31 UTC)
- Expired
- Aug 9, 2012, 8:30 PM EDT
- In force
- 59 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
Counties Burke County, GA, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Orangeburg County, SC
The radar
The Charleston,SC radar (KCLX), 72 km from the middle of the area, began a volume at 23:34 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 |
|---|---|---|---|
| Aug 9, 7:55 PM EDT | TSTM WND DMG | Savannah River Site, SC | SRS DISPATCH REPORTED TREES DOWN ON SC HWY 125 AND ON SAVANNAH RIVER SITE ROAD F. |
| Aug 9, 8:00 PM EDT | TSTM WND GST 55 | 7 W Snelling, SC | WIND GAGE AT P AREA IN THE SAVANNAH RIVER SITE MEASURED A PEAK WIND GUST OF 55 MPH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 11.5 hours before the alert went out and 148 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
- 957 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 723 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
799
WUUS52 KCAE 092331
SVRCAE
GAC033-SCC003-009-011-075-100030-
/O.NEW.KCAE.SV.W.0228.120809T2331Z-120810T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
731 PM EDT THU AUG 9 2012
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN BURKE COUNTY IN EAST CENTRAL GEORGIA
NORTHWESTERN BAMBERG COUNTY IN CENTRAL SOUTH CAROLINA
CENTRAL AIKEN COUNTY IN CENTRAL SOUTH CAROLINA
WESTERN ORANGEBURG COUNTY IN CENTRAL SOUTH CAROLINA
BARNWELL COUNTY IN CENTRAL SOUTH CAROLINA
* UNTIL 830 PM EDT
* AT 728 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR SARDIS...OR 16 MILES NORTH
OF SYLVANIA...AND MOVING NORTH AT 30 MPH.
* SOME COMMUNITIES IN THE WARNING AREA INCLUDE SAVANNAH RIVER SITE...
SARDIS...WILLISTON...DENMARK...BLACKVILLE...BARNWELL AND BAMBERG
REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE...TOLL FREE 1 877 6 3
3...6 7 7 2.
LAT...LON 3294 8182 3295 8193 3323 8172 3341 8148
3356 8158 3336 8087 3311 8124 3310 8137
3315 8155 3310 8160 3309 8160 3304 8154
3291 8176
TIME...MOT...LOC 2331Z 196DEG 20KT 3299 8168
$$
HC1 follow-up statement
576
WWUS52 KCAE 100003
SVSCAE
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
803 PM EDT THU AUG 9 2012
GAC033-100013-
/O.CAN.KCAE.SV.W.0228.000000T0000Z-120810T0030Z/
BURKE GA-
803 PM EDT THU AUG 9 2012
...THE SEVERE THUNDERSTORM WARNING FOR BURKE COUNTY IS CANCELLED...
REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1...8 7
7...6 3 3...6 7 7 2.
LAT...LON 3315 8155 3323 8172 3341 8148 3356 8158
3336 8087 3311 8124 3310 8137
TIME...MOT...LOC 0003Z 206DEG 25KT 3334 8149
$$
SCC003-009-011-075-100030-
/O.CON.KCAE.SV.W.0228.000000T0000Z-120810T0030Z/
BAMBERG SC-AIKEN SC-ORANGEBURG SC-BARNWELL SC-
803 PM EDT THU AUG 9 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR BARNWELL...ORANGEBURG...AIKEN AND BAMBERG COUNTIES...
AT 758 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SNELLING...OR 9 MILES
NORTHWEST OF BARNWELL...MOVING NORTHEAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GOVAN...HILDA...ELKO...WILLISTON...BLACKVILLE...DENMARK...WINDSOR...
BAMBERG AND COPE
THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE.
REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1...8 7
7...6 3 3...6 7 7 2.
LAT...LON 3315 8155 3323 8172 3341 8148 3356 8158
3336 8087 3311 8124 3310 8137
TIME...MOT...LOC 0003Z 206DEG 25KT 3334 8149
$$
HCThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 9:01 PM EDT | Areal Flood Advisory | CAE | Chesterfield | 119 min |
| Aug 8, 11:20 PM EDT | Special Weather Statement | CAE | Calhoun, Clarendon, Orangeburg, Sumter | 55 min |
| Aug 9, 6:29 PM EDT | Severe Thunderstorm Warning | CAE | Aiken | 61 min |
| Aug 9, 6:41 PM EDT | Severe Thunderstorm Warning | CAE | Newberry, Saluda | 64 min |
| Aug 9, 7:00 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry | 45 min |
| Aug 9, 7:15 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, McCormick | 45 min |
| Aug 9, 7:57 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell, Calhoun, Edgefield, Lexington, Newberry and 2 more | 48 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2012Severe 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.