Alert archive / South Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 29, NWS Columbia, SC

April 22, 1997Richland County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Apr 22, 1997, 8:22 PM EDT for Richland County, South Carolina. It was in force for 68 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 22, 1997, 8:22 PM EDT (00:22 UTC)
Expired: Apr 22, 1997, 9:30 PM EDT
In force: 68 min
Issued by: NWS Columbia, SC
Area: Whole counties

County Richland County, SC

What was reported inside it

Time	Report	Where	Remark
Apr 22, 8:55 PM EDT	Thunderstorm Wind 55	Columbia, SC

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 0.4 hours before the alert went out and 150 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 885 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1589 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

904 
WUUS1 KCAE 230022 RRA
SVRCAE
SCC079-230130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
822 PM EDT TUE APR 22 1997
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN  SOUTH CAROLINA
 
   ...RICHLAND COUNTY
 
AT 815 PM NATIONAL WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM
IN THE NORTH PART OF CALHOUN COUNTY MOVING EAST NORTHEAST AT 35 MPH.
THE HORRELL HILL-CONGAREE AREA AREA OF SOUTHERN RICHLAND COUNTY
IS IN THE PATH OF THIS STORM. SEVERE THUNDERSTORMS WERE ALSO IN
THE WEST PART OF LEXINGTON COUNTY AND THESE MAY AFFECT PARTS OF
NORTHERN RICHLAND COUNTY.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
THESE WINDS BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE
MOBILE HOMES.  FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR.  DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
AMATEUR RADIO AND OTHER SPOTTERS ARE REQUESTED TO MONITOR THIS
STORM AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL
WEATHER SERVICE OFFICE.
 
JL/SN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Apr 22, 5:17 PM EDT, 3 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
517 PM EDT TUE APR 22 1997

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

510 PM     WINNSBORO                 SC   .75 INCH HAIL
04/22/97   FAIRFIELD                      SPOTTER #266 TONY HILL

510 PM     WINNSBORO                 SC   1.50 INCH HAIL
04/22/97   FAIRFIELD                      911 OPERATOR

515 PM     WINNSBFORO                 SC   1.75 INCH HAIL
04/22/97   FAIRFIELD                      POST OFFICE

HG

Local storm report, Apr 22, 5:48 PM EDT, 2 hours 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
548 PM EDT TUE APR 22 1997

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

547 PM     HEATH SPRINGS AND KERSHAW SC   .75 INCH HAIL
04/22/97   LANCASTER                      POLICE DEPT REPORT - ALSO
                                          HOUSE ON FIRE DUE TO
                                          LIGHTNING

TTH

Local storm report, Apr 22, 7:19 PM EDT, 1 hour 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
719 PM EDT TUE APR 22 1997

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

703 PM     SW LINCOLN COUNTY         GA   1.00 INCH HAIL
04/22/97   LINCOLN                        COOP OBSERVER REPORT

TTH

Local storm report, Apr 22, 7:37 PM EDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
737 PM EDT TUE APR 22 1997

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

725 PM     PLUM BRANCH               SC   1.00 INCH HAIL
04/22/97   MCCORMICK                      COUNTY SHERRIF REPORT

TTH

Local storm report, Apr 22, 7:51 PM EDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
751 PM EDT TUE APR 22 1997

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

740 PM     10 SW EDGEFIELD           SC   1.00 INCH HAIL
04/22/97   EDGEFIELD                      HAM OPERATOR REPORT

TTH

Local storm report, Apr 22, 7:55 PM EDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
755 PM EDT TUE APR 22 1997

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

751 PM     2 WEST THOMSON            GA   .75 INCH HAIL
04/22/97   MCDUFFIE                       PUBLIC REPORT

TTH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 8:16 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun	24 min
Apr 22, 8:41 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield	49 min
Apr 22, 8:48 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	52 min
Apr 22, 8:56 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	64 min
Apr 22, 9:16 PM EDT	Severe Thunderstorm Warning	CAE	Lexington	44 min
Apr 22, 9:25 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	35 min
Apr 22, 9:28 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	62 min
Apr 22, 9:28 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Richland	62 min
Apr 22, 9:47 PM EDT	Tornado Warning	CAE	Clarendon	28 min
Apr 22, 10:09 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	51 min
Apr 22, 10:12 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	63 min
Apr 23, 1:15 AM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	30 min
Apr 23, 1:33 AM EDT	Severe Thunderstorm Warning	CAE	Calhoun	27 min
Apr 23, 1:45 AM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Sumter	45 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1997 Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.