Alert archive / South Carolina / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 100, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Jul 24, 1997, 6:59 PM EDT for Clarendon County, South Carolina. It was in force for 61 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
- Jul 24, 1997, 6:59 PM EDT (22:59 UTC)
- Expired
- Jul 24, 1997, 8:00 PM EDT
- In force
- 61 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
County Clarendon County, SC
The radar
The Columbia radar (KCAE), 89 km from the middle of the area, began a volume at 23:02 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 |
|---|---|---|---|
| Jul 24, 7:15 PM EDT | Thunderstorm Wind 50 | Manning, SC | County sheriff reported some trees and transformers down on highway 301 along with many traffic accidents. |
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 12:00Z, 11.0 hours before the alert went out and 88 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
- 2088 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 706 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCAE 242301 RRA SVRCAE SCC027-250000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 659 PM EDT THU JUL 24 1997 THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CAROLINA ...CLARENDON COUNTY AT 658PM NATIONAL WEATHER SERVICE RADAR DETECTED SEVERE THUNDERSTORMS EXTENDING FROM SANTEE TO SU MMERTON TO PAXVILLE. THESE STORMS WILL MOVE EAST INTO MANNING AROUND 720PM. THIS IS A DANGEROUS STORM...TAKE COVER IMMEDIATELY IF YOU ARE IN ITS PATH. INTENSE SEVERE THUNDERSTORMS CAN CAUSE AS MUCH DAMAGE AS SOME TORNADOES. AWP
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 12:23 AM EDT | Severe Thunderstorm Warning | CAE | Richland | 37 min |
| Jul 24, 12:30 AM EDT | Tornado Warning | CAE | Richland | 30 min |
| Jul 24, 12:44 AM EDT | Tornado Warning | CAE | Kershaw | 31 min |
| Jul 24, 1:07 AM EDT | Severe Thunderstorm Warning | CAE | Lee | 38 min |
| Jul 24, 6:09 PM EDT | Severe Thunderstorm Warning | CAE | Orangeburg | 36 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; radar from the NEXRAD Level II archive.