Alert archive / South Carolina / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 18, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 31, 1993, 5:16 PM EST for Oconee County, South Carolina. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Mar 31, 1993, 5:16 PM EST (22:16 UTC)
- Expired
- Mar 31, 1993, 6:15 PM EST
- In force
- 59 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Oconee County, SC
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 12:00Z, 10.3 hours before the alert went out and 92 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
- 33 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Mar 31, 2:37 PM EST, 2 hours 39 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
233 PM EST WED MAR 31 1993
1050 AM EMERGENCY PREPAREDNESS DIRECTOR OF GREENWOOD COUNTY REPORTED
WIND DAMAGE WITH A MOBILE HOME MOVED...A SHED DESTROYED...
POWER LINES AND A COUPLE OF TREES DOWN. DAMAGE BETWEEN 1050-
1130 AM EST.
DHRSpecial weather statement, Mar 31, 4:11 PM EST, 1 hour 5 minutes before
SCZ001-002-004-312300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC 405 PM EST WED MAR 31 1993 ...TORNADO WATCH INCLUDES MOST OF UPSTATE UNTIL 900 PM EST... AT 350 PM WEATHER RADAR SHOWED SCATTERED THUNDERSTORMS OVER NORTHERN SECTIONS OF GEORGIA. THESE STORMS WERE GAINING STRENGTH STEADILY AND SEEMED TO BE BECOMING BETTER ORGANIZED. AT THE CURRENT PACE OF DEVELOPMENT AND MOVEMENT...STRONG OR SEVERE THUNDERSTORMS COULD BEGIN TO AFFECT WESTERN UPSTATE COUNTIES AROUND 600 PM OR A LITTLE EARLIER. THIS A PARTICULARLY DANGEROUS SITUATION...ANY TORNADOES WHICH DEVELOP FROM SEVERE THUNDERSTORMS TONIGHT COULD BE VERY DAMAGING. UPSTATE SPOTTER GROUPS SHOULD PREPARE TO ACTIVATE ON SHORT NOTICE. PEOPLE SHOULD MONITOR NOAA WEATHER RADIO...OR LISTEN TO LOCAL TV OR RADIO FOR LATEST INFORMATION AND POSSIBLE WARNINGS. THERE IS SOME TIME TO BRUSH UP ON TORNADO SAFETY RULES...BE PREPARED TO TAKE COVER IF A WARNING IS ISSUED FOR YOUR COUNTY OR IF TORNADOES OR DAMAGING WINDS ARE OBSERVED. JONES
Local storm report, Mar 31, 5:11 PM EST, 5 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ASHEVILLE NORTH CAROLINA
510 PM EST WED MAR 31 1993
DATE/TIME EVENT
445 PM EST CHEROKEE COUNTY EOC REPORTS HAIL UP TO GOLF-BALL
SIZE IN SOUTHERN CHEROKEE COUNTY. HAIL MARBLE TO
NICKLE SIZE COVERED THE GROUND WEST OF MURPHY TO A
REPORTED DEPTH OF 1 TO 2 INCHES.
RCJSpecial weather statement, Mar 31, 5:13 PM EST, 3 minutes before
NCZ007-008-014-312300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLOTTE NC 515 PM EST WED MAR 31 1993 ...TORNADO WATCH IN EFFECT FOR MECKLENBURG... CLEVELAND... CATAWBA... LINCOLN... GASTON... IREDELL... ROWAN... CABBARRUS... STANLY... ANSON... UNION... RICHMOND... AND MONTGOMERY COUNTIES OF NORTH CAROLINA UNTIL MIDNIGHT THIS EVENING... ...TORNADO WATCH IN EFFECT FOR CHEROKEE...YORK... AND LANCASTER COUNTIES IN SOUTH CAROLINA UNTIL MIDNIGHT THIS EVENING... ...FLASH FLOOD WATCH IN EFFECT FOR CATAWBA COUNTY THIS EVENING... AT 510 PM WEATHER RADAR SHOWED SCATTERED LIGHT SHOWERS OVER THE FOOTHILLS AND PIEDMONT REGIONS OF NORTH AND SOUTH CAROLINA. HEAVIER THUNDERSTORMS WERE MOVING INTO THE SOUTHWESTERN MOUNTAINS OF NORTH CAROLINA AND ALSO CENTRAL SOUTH CAROLINA. MOVEMENT OF THE PRECIPITATION WAS TOWARD THE NORTHEAST AT 35 MPH. THE ATMOSPHERE IS EXTREMELY UNSTABLE AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE EVENING OVER WESTERN NORTH CAROLINA AND NORTHERN SOUTH CAROLINA. TORNADOES... LARGE HAIL... DANGEROUS LIGHTNING AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE IN THESE AREAS. YOU SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND BE READY TO TAKE COVER. STAY TUNED TO NOAA WEATHER RADIO... OR LOCAL TELEVISION AND RADIO FOR UPDATES OR POSSIBLE WARNINGS. THE NEXT STATEMENT WILL BE ISSUED BY 600 PM. GK
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 4:23 PM EST | Flash Flood Warning | GSP | Cherokee | 67 min |
| Mar 31, 4:23 PM EST | Severe Thunderstorm Warning | GSP | Cherokee | 67 min |
| Mar 31, 4:56 PM EST | Tornado Warning | GSP | Cherokee | 34 min |
| Mar 31, 5:16 PM EST | Tornado Warning | GSP | Clay, Macon | 44 min |
| Mar 31, 5:29 PM EST | Severe Thunderstorm Warning | GSP | Cherokee, Graham | 46 min |
| Mar 31, 5:57 PM EST | Severe Thunderstorm Warning | GSP | Jackson, Macon | 63 min |
| Mar 31, 6:13 PM EST | Tornado Warning | GSP | Transylvania | 32 min |
| Mar 31, 6:27 PM EST | Severe Thunderstorm Warning | GSP | Henderson, Polk | 63 min |
| Mar 31, 5:52 PM EST | Severe Thunderstorm Warning | GSP | Pickens | 68 min |
| Mar 31, 6:09 PM EST | Tornado Warning | GSP | Pickens | 66 min |
| Mar 31, 6:40 PM EST | Tornado Warning | GSP | Greenville | 65 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 1993Every severe thunderstorm warning in 1993
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.