Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 9, NWS Columbia, SC

March 9, 20114 counties in South Carolina; 4 counties in Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Mar 9, 2011, 3:18 PM EST for 4 counties in South Carolina; 4 counties in Georgia. It was in force for 57 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
Mar 9, 2011, 3:18 PM EST (20:18 UTC)
Expired
Mar 9, 2011, 4:15 PM EST
In force
57 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon

Counties Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Edgefield County, SC, McCormick County, SC, Saluda County, SC

The radar

The Columbia radar (KCAE), 105 km from the middle of the area, began a volume at 20:20 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

TimeReportWhereRemark
Mar 9, 3:42 PM ESTTSTM WND GST 05 N Harlem, GAEM REPORTS TRACTOR TRAILER OVERTURNED AT I-20 EASTBOUND REST AREA
Mar 9, 3:47 PM ESTTSTM WND DMGGrovetown, GAPUBLIC REPORT OF GRILL BLOWN INTO YARD AND LARGE TREE

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, 8.3 hours before the alert went out and 217 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2011-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2011-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 690 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
548 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
690 m²/s²
0-3 km storm-relative helicity
795 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

764 
WUUS52 KCAE 092018
SVRCAE
GAC073-181-189-245-SCC003-037-065-081-092115-
/O.NEW.KCAE.SV.W.0009.110309T2018Z-110309T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
318 PM EST WED MAR 9 2011

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN RICHMOND COUNTY IN EAST CENTRAL GEORGIA
  EASTERN MCDUFFIE COUNTY IN EAST CENTRAL GEORGIA
  SOUTHEASTERN LINCOLN COUNTY IN EAST CENTRAL GEORGIA
  COLUMBIA COUNTY IN EAST CENTRAL GEORGIA
  EDGEFIELD COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHEASTERN MCCORMICK COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHERN SALUDA COUNTY IN CENTRAL SOUTH CAROLINA
  NORTHWESTERN AIKEN COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 415 PM EST

* AT 311 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR GROVETOWN...AND MOVING EAST
  AT 40 MPH.

* SOME COMMUNITIES IN THE WARNING AREA INCLUDE MARTINEZ...HARLEM...
  GROVETOWN...FORT GORDON...EVANS...AUGUSTA...NORTH AUGUSTA...
  JOHNSTON...EDGEFIELD...CLEARWATER AND BELVEDERE

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 3369 8238 3395 8204 3396 8201 3401 8197
      3373 8154 3327 8225 3332 8235 3332 8238
      3337 8254
TIME...MOT...LOC 2018Z 253DEG 35KT 3354 8217

$$

TTH
1 follow-up statement
005 
WWUS52 KCAE 092044
SVSCAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
344 PM EST WED MAR 9 2011

GAC181-189-SCC065-092048-
/O.CAN.KCAE.SV.W.0009.000000T0000Z-110309T2115Z/
MCDUFFIE GA-LINCOLN GA-MCCORMICK SC-
344 PM EST WED MAR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR MCCORMICK...LINCOLN AND
MCDUFFIE COUNTIES IS CANCELLED...

THE STRONGEST WINDS HAVE SHIFTED EAST OF MCCORMICK...LINCOLN
AND MCDUFFIE COUNTIES.

REPORT DAMAGING WINDS 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 3336 8229 3341 8234 3364 8220 3359 8213
      3362 8210 3365 8211 3370 8217 3395 8204
      3396 8200 3401 8197 3373 8154 3327 8225
      3332 8234
TIME...MOT...LOC 2038Z 253DEG 35KT 3359 8195

$$

GAC073-245-SCC003-037-081-092115-
/O.CON.KCAE.SV.W.0009.000000T0000Z-110309T2115Z/
RICHMOND GA-COLUMBIA GA-EDGEFIELD SC-SALUDA SC-AIKEN SC-
344 PM EST WED MAR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EST
FOR AIKEN...SALUDA...EDGEFIELD...COLUMBIA AND RICHMOND COUNTIES...

AT 338 PM WEATHER RADAR CONTINUED TO SHOW A BAND OF SHOWERS AND 
EMBEDDED THUNDERSTORMS EXTENDING FROM NEAR EDGEFIELD SOUTHWARD INTO 
WESTERN RICHMOND COUNTY. MOVEMENT WAS EASTWARD NEAR 30 MPH. SOME OF 
THE SHOWERS AND THUNDERSTORMS LIKELY CONTAINED WIND GUSTS OF 40 TO 
60 MPH.


REPORT DAMAGING WINDS 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 3336 8229 3341 8234 3364 8220 3359 8213
      3362 8210 3365 8211 3370 8217 3395 8204
      3396 8200 3401 8197 3373 8154 3327 8225
      3332 8234
TIME...MOT...LOC 2038Z 253DEG 35KT 3359 8195

$$

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 9, 4:09 AM ESTLake Wind AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more43 hr
Mar 9, 10:12 AM ESTRiver Flood WatchCAECalhoun, Lexington, Richland11 hr
Mar 9, 3:39 PM ESTSevere Thunderstorm WarningCAEAiken, Barnwell66 min
Mar 9, 4:14 PM ESTSevere Thunderstorm WarningCAEAiken, Edgefield, Lexington, Saluda61 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011Severe Thunderstorm Warnings in Georgia, 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.