Alert archive / South Carolina / Tornado Warnings in 2011
Tornado Warning 9, NWS Columbia, SC
NWS Columbia, SC issued this tornado warning at Apr 28, 2011, 8:05 AM EDT for Lee County, Sumter County, South Carolina. It was in force for 25 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 28, 2011, 8:05 AM EDT (12:05 UTC)
- Expired
- Apr 28, 2011, 8:30 AM EDT
- In force
- 25 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
Counties Lee County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 102 km from the middle of the area, began a volume at 12:08 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 28, 8:11 AM EDT | TORNADO | 3 Wnw Turbeville, SC | EMERGENCY MANAGER REPORTED TREES DOWN ON FORGE ROAD AND PUDDING SWAMP ROAD IN THE SHILOH COMMUNITY FROM AN EF0 TORNADO. PATH LENGTH WAS 2 MILES WITH A WIDTH OF 50 TO 100 YARDS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 28, 4:30 AM EDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 0.1 hours before the alert went out and 120 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
- 1847 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 685 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 221 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 10.6
The text
As transmitted, in the capitals the NWS used until 2016.
843
WFUS52 KCAE 281205
TORCAE
SCC061-085-281230-
/O.NEW.KCAE.TO.W.0009.110428T1205Z-110428T1230Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
805 AM EDT THU APR 28 2011
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN LEE COUNTY IN CENTRAL SOUTH CAROLINA
EASTERN SUMTER COUNTY IN CENTRAL SOUTH CAROLINA
* UNTIL 830 AM EDT
* AT 804 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES
SOUTHWEST OF LYNCHBURG...OR ABOUT 8 MILES EAST OF SOUTH SUMTER...
MOVING NORTHEAST AT 55 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
LYNCHBURG
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON EDT THURSDAY FOR EAST
CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.
&&
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 3390 8007 3384 8023 3395 8027 3409 8005
3403 7996 3402 7994 3401 7994 3402 7993
3401 7993 3401 7992 3399 7990
TIME...MOT...LOC 1205Z 244DEG 46KT 3393 8019
$$The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 2:28 AM EDT | Severe Thunderstorm Warning | CAE | McCormick | 47 min |
| Apr 28, 2:57 AM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick | 48 min |
| Apr 28, 3:24 AM EDT | Severe Thunderstorm Warning | CAE | Newberry, Saluda | 51 min |
| Apr 28, 3:48 AM EDT | Severe Thunderstorm Warning | CAE | McCormick | 42 min |
| Apr 28, 4:15 AM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick | 45 min |
| Apr 28, 4:26 AM EDT | Severe Thunderstorm Warning | CAE | McCormick | 34 min |
| Apr 28, 4:50 AM EDT | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, Lexington, Saluda | 40 min |
| Apr 28, 4:56 AM EDT | Severe Thunderstorm Warning | CAE | McCormick | 49 min |
| Apr 28, 5:03 AM EDT | Severe Thunderstorm Warning | CAE | Edgefield | 42 min |
| Apr 28, 5:17 AM EDT | Severe Thunderstorm Warning | CAE | Aiken | 43 min |
| Apr 28, 5:24 AM EDT | Areal Flood Advisory | CAE | Edgefield, McCormick | 3 hr |
| Apr 28, 5:31 AM EDT | Severe Thunderstorm Warning | CAE | Lexington, Richland | 44 min |
| Apr 28, 5:41 AM EDT | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, Saluda | 49 min |
| Apr 28, 5:57 AM EDT | Severe Thunderstorm Warning | CAE | Lexington, Richland | 48 min |
| Apr 28, 6:12 AM EDT | Severe Thunderstorm Warning | CAE | Aiken | 48 min |
| Apr 28, 6:28 AM EDT | Severe Thunderstorm Warning | CAE | Aiken, Calhoun, Lexington, Orangeburg, Richland | 47 min |
| Apr 28, 6:40 AM EDT | Severe Thunderstorm Warning | CAE | Aiken, Bamberg, Barnwell, Orangeburg | 65 min |
| Apr 28, 6:54 AM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Lee, Richland, Sumter | 66 min |
| Apr 28, 7:08 AM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell | 52 min |
| Apr 28, 7:16 AM EDT | Severe Thunderstorm Warning | CAE | Chesterfield | 44 min |
| Apr 28, 7:20 AM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Clarendon, Lee, Orangeburg, Richland, Sumter | 55 min |
| Apr 28, 7:30 AM EDT | Tornado Warning | CAE | Calhoun, Clarendon, Richland, Sumter | 45 min |
| Apr 28, 7:49 AM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Barnwell, Calhoun, Clarendon, Orangeburg | 56 min |
| Apr 28, 8:16 AM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Clarendon, Lee, Orangeburg, Richland, Sumter | 59 min |
| Apr 28, 8:45 AM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Clarendon, Orangeburg | 60 min |
| Apr 28, 9:22 AM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Lee, Orangeburg, Sumter | 53 min |
| Apr 28, 10:59 AM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Orangeburg, Richland | 31 min |
| Apr 28, 11:16 AM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Fairfield, Kershaw, Lee, Richland, Sumter | 44 min |
Nearby
Tornado Warnings in South Carolina, 2011Every tornado warning in 2011Tornadoes in 2011
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.