Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 39, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Apr 16, 2011, 2:17 PM EDT for 5 counties in South Carolina. It was in force for 43 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
- Apr 16, 2011, 2:17 PM EDT (18:17 UTC)
- Expired
- Apr 16, 2011, 3:00 PM EDT
- In force
- 43 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
Counties Calhoun County, SC, Clarendon County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 71 km from the middle of the area, began a volume at 18:17 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 16, 2:22 PM EDT | FUNNEL CLOUD | 5 S Eastover, SC | WEATHER OBSERVER AT MCENTIRE AIR NATIONAL GUARD BASE REPORTED FUNNEL CLOUD 9 MILES SE OF BASE. REPORT RECEIVED VIA SPECI AWOS OB. |
| Apr 16, 2:30 PM EDT | HAIL 1.75 | 1 S Orangeburg, SC | GOLF BALL SIZE HAIL REPORTED AT FIRE STATION 4 AT ROWESVILLE ROAD AND PROSPERITY DRIVE. REPORTED BY SHERIFF. |
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 16, 12:02 PM EDT | Tornado Watch | SPC | 11 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 6.3 hours before the alert went out and 112 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
- 421 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 687 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
016
WUUS52 KCAE 161817
SVRCAE
SCC017-027-075-079-085-161900-
/O.NEW.KCAE.SV.W.0039.110416T1817Z-110416T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
217 PM EDT SAT APR 16 2011
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN RICHLAND COUNTY IN CENTRAL SOUTH CAROLINA
EASTERN CALHOUN COUNTY IN CENTRAL SOUTH CAROLINA
SUMTER COUNTY IN CENTRAL SOUTH CAROLINA
WESTERN CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA
CENTRAL ORANGEBURG COUNTY IN CENTRAL SOUTH CAROLINA
* UNTIL 300 PM EDT
* AT 212 PM EDT...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 12
MILES SOUTHWEST OF ORANGEBURG...OR NEAR BAMBERG...AND MOVING
NORTHEAST AT 45 MPH.
* SOME COMMUNITIES IN THE WARNING AREA INCLUDE SUMTER...ST.
MATTHEWS...SOUTH SUMTER...ORANGEBURG...MULBERRY...MILLWOOD...
ELLOREE AND BROOKDALE
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM FOR THE WARNED AREA. IF
A TORNADO IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN
A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
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 3393 8008 3327 8087 3339 8104 3386 8071
3404 8030 3402 8026 3399 8025 3400 8022
3398 8018 3395 8018 3397 8015
TIME...MOT...LOC 1816Z 228DEG 47KT 3340 8094
$$
SMITH1 follow-up statement
219
WWUS52 KCAE 161852
SVSCAE
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
252 PM EDT SAT APR 16 2011
SCC075-079-161901-
/O.CAN.KCAE.SV.W.0039.000000T0000Z-110416T1900Z/
RICHLAND SC-ORANGEBURG SC-
252 PM EDT SAT APR 16 2011
...THE SEVERE THUNDERSTORM WARNING FOR ORANGEBURG AND RICHLAND
COUNTIES IS CANCELLED...
REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1...8 7
7...6 3 3...6 7 7 2.
LAT...LON 3356 8054 3356 8060 3354 8059 3352 8060
3353 8064 3376 8061 3397 8046 3404 8030
3403 8027 3399 8025 3400 8022 3398 8018
3395 8018 3397 8014 3393 8008
TIME...MOT...LOC 1851Z 228DEG 47KT 3371 8053
$$
SCC017-027-085-161900-
/O.CON.KCAE.SV.W.0039.000000T0000Z-110416T1900Z/
CALHOUN SC-SUMTER SC-CLARENDON SC-
252 PM EDT SAT APR 16 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR CLARENDON...SUMTER AND CALHOUN COUNTIES...
AT 247 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS
STORM WAS LOCATED 8 MILES SOUTHWEST OF PINEWOOD...OR 18 MILES
NORTHEAST OF BROOKDALE...MOVING NORTHEAST AT 50 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SUMTER...SOUTH SUMTER...PAXVILLE...MULBERRY...MILLWOOD AND MAYESVILLE
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR CENTRAL SOUTH CAROLINA.
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 3356 8054 3356 8060 3354 8059 3352 8060
3353 8064 3376 8061 3397 8046 3404 8030
3403 8027 3399 8025 3400 8022 3398 8018
3395 8018 3397 8014 3393 8008
TIME...MOT...LOC 1851Z 228DEG 47KT 3371 8053
$$
SMITHThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 12:05 AM EDT | Special Weather Statement | CAE | McCormick | 55 min |
| Apr 16, 1:03 PM EDT | Severe Thunderstorm Warning | CAE | Kershaw, Richland | 42 min |
| Apr 16, 1:26 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Kershaw, Richland, Sumter | 49 min |
| Apr 16, 1:33 PM EDT | Severe Thunderstorm Warning | CAE | Chesterfield, Kershaw, Lancaster, Lee | 57 min |
| Apr 16, 1:56 PM EDT | Tornado Warning | CAE | Chesterfield | 19 min |
| Apr 16, 2:11 PM EDT | Severe Thunderstorm Warning | CAE | Lee, Sumter | 49 min |
| Apr 16, 2:48 PM EDT | Severe Thunderstorm Warning | CAE | Calhoun, Clarendon, Lee, Orangeburg, Sumter | 42 min |
| Apr 16, 3:12 PM EDT | Tornado Warning | CAE | Clarendon | 33 min |
| Apr 16, 3:57 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Orangeburg | 48 min |
| Apr 16, 4:12 PM EDT | Tornado Warning | CAE | Clarendon | 33 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2011Every severe thunderstorm warning 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.