Alert archive / South Carolina / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 42, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Apr 23, 1997, 1:33 AM EDT for Calhoun County, South Carolina. It was in force for 27 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 23, 1997, 1:33 AM EDT (05:33 UTC)
- Expired
- Apr 23, 1997, 2:00 AM EDT
- In force
- 27 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
County Calhoun County, SC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 23, 1:45 AM EDT | Thunderstorm Wind 55 | St Matthews, 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, 5.6 hours before the alert went out and 113 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
596 WUUS1 KCAE 230532 RRA SVRCAE SCC017-230600- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 133 AM EDT WED APR 23 1997 THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 200 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CAROLINA ...CALHOUN COUNTY AT 130 AM WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTH OF ORANGEBURG MOVING NORTHEAST AT 60 MPH. THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL. THE STORM IS EXPECTED TO MOVE JUST SOUTH OF ST. MATTHEWS BEFORE 2 AM. 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. HG
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, 10:22 PM EDT, 3 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1022 PM EDT TUE APR 22 1997
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
950 PM WILLISTON SC WIND DAMAGE
04/22/97 BARNWELL NUMEROUS TREES DOWN -
REPORTED BY BARNWELL EPD
952 PM ORANGEBURG SC WIND DAMAGE
04/22/97 ORANGEBURG ORANGEBURG ASOS - PEAK
WIND WSW AT 53 MPH
1005 PM TURBEVILLE SC 1.00 INCH HAIL
04/22/97 CLARENDON REPORTED BY WEATHER
SPOTTER
1010 PM EHRHART SC WIND DAMAGE
04/22/97 BAMBERG TREES DOWN - REPORTED BY
BAMBERG EPD
1030 PM SUMTER SC WIND DAMAGE
04/22/97 SUMTER WIND DAMAGE TO HOUSE AND
PEA SIZE HAIL - REPORTED
BY PUBLIC
900 PM BLYTHE GA WIND DAMAGE
04/22/97 RICHMOND MOBILE HOME BLOWN OVER -
REPORTED BY RICHMOND CO
EMERGENCY PREPARENESS
DIRECTOR
1028 PM PINEWOOD SC WIND DAMAGE
04/22/97 SUMTER TREES DOWN - REPORTED BY
SUMTER CITY POLICE
TALocal storm report, Apr 22, 11:09 PM EDT, 2 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1109 PM EDT TUE APR 22 1997
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
1020 PM ALCOHU SC WIND DAMAGE
04/22/97 CLARENDON TREES DOWN - 10 N OF
MANNING - REPORTED BY
SUMMERTON POLICE
TALocal storm report, Apr 22, 11:27 PM EDT, 2 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1127 PM EDT TUE APR 22 1997
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
1000 PM COLUMBIA SC WIND DAMAGE
04/22/97 RICHLAND SEVERAL TREES UPROOTED -
REPORTED LOCAL TV STATION
WLTX
TALocal storm report, Apr 22, 11:35 PM EDT, 1 hour 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1135 PM EDT TUE APR 22 1997
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
1000 PM ST MATTHEWS SC WIND DAMAGE
04/22/97 CALHOUN NUMEROUS REPORTS OF TREES
ON HOUSES AND POWER LINES
DOWN - REPORTED BY SC LAW
ENFORCEMENT DIVISION
TALocal storm report, Apr 22, 11:42 PM EDT, 1 hour 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1142 PM EDT TUE APR 22 1997
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
1110 PM BARRINEAU SC WIND DAMAGE
04/22/97 CLARENDON NUMEROUS MOBILE HOMES
OVERTURNED- ONE BLOCKING
ROAD - REPORTED BY
CLARENDON CO FIRE DEPT
TALocal storm report, Apr 23, 1:30 AM EDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
130 AM EDT WED APR 23 1997
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
123 AM DENMARK SC 1.50 INCH HAIL
04/23/97 BAMBERG BAMBERG COUNTY EMA.
RCCThe 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, 8:22 PM EDT | Severe Thunderstorm Warning | CAE | Richland | 68 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, 1:45 AM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Sumter | 45 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 1997Every 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.