Alert archive / South Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 53, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 2, 1990, 8:21 PM EDT for Cherokee County, South Carolina. It was in force for 37 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
- May 2, 1990, 8:21 PM EDT (00:21 UTC)
- Expired
- May 2, 1990, 8:58 PM EDT
- In force
- 37 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Cherokee County, SC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 2, 8:38 PM EDT | Hail 1.25 | Cherokee, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.4 hours before the alert went out and 193 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
- 246 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 866 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 348 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.8
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
Special weather statement, May 2, 7:13 PM EDT, 1 hour 8 minutes before
SCZ001>002-030000 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC 713 PM EDT TUE MAY 1 1990 ...STRONG THUNDERSTORM IN NORTHERN GREENVILLE COUNTY... AT 710PM RADAR INDICATED A STRONG THUNDERSTORM IN NORTHERN GREENVILLE COUNTY NORTH OF CLEVELAND. THIS STORM IS MOVING TOWARD THE EAST AT ABOUT 35 MPH AND PROBABLY WILL PRODUCE SOME SMALL HAIL AND POSSIBLY STRONG GUSTY WIND AS IT MOVES ACROSS NORTHERN GREENVILLE AND NORTHERN SPARTANBURG COUNTIES.
Special weather statement, May 2, 7:15 PM EDT, 1 hour 6 minutes before
SCZ001>002-030000 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC...CORRECTIOM DATE... 713 PM EDT WED MAY 2 1990 ...STRONG THUNDERSTORM IN NORTHERN GREENVILLE COUNTY... AT 710PM RADAR INDICATED A STRONG THUNDERSTORM IN NORTHERN GREENVILLE COUNTY NORTH OF CLEVELAND. THIS STORM IS MOVING TOWARD THE EAST AT ABOUT 35 MPH AND PROBABLY WILL PRODUCE SOME SMALL HAIL AND POSSIBLY STRONG GUSTY WIND AS IT MOVES ACROSS NORTHERN GREENVILLE AND NORTHERN SPARTANBURG COUNTIES.
Special weather statement, May 2, 7:53 PM EDT, 28 minutes before
SCZ001>002-030030 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC 753 PM EDT WED MAY 2 1990 ...STRONG THUNDERSTORMS IN NORTHERN GREENVILLE COUNTY... AT 745 PM EDT THE LANDRUM POLICE REPORTED THROUGH THE SPARTANBURG COMMUNICATIONS CENTER THAT THE STRONG THUNDERSTORMS MOVING THROUGH EXTREME NORTHERN GREENVILLE AND SPARTANBURG COUNTIES PRODUCED WINDS TO ABOUT 30 MPH AND MARBLE SIZE HAIL IN LANDRUM.
Special weather statement, May 2, 8:08 PM EDT, 13 minutes before
SCZ001>002-030045 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC 807 PM EDT WED MAY 2 1990 ...STRONG THUNDERSTORMS IN NORTHERN GREENVILLE AND SPARTANBURG COUNTIES... AT 803 WEATHER RADAR SHOWED A STRONG THUNDERSTORM MOVING SOUTHEAST INTO THE CHESNEE AND BATTLEGROUND AREAS OF SPARTANBURG AND CHEROKEE COUNTIES. THIS STORM PROBABLY CONTAINS HAIL AND GUSTY WINDS. HAIL WAS EARLER REPORTED IN LANDRUM. OTHER STORMS WERE SHOWN MOVING OVER EXTREME NORTHERN SECTIONS OF GREENVILLE COUNTY...WHICH HAS HAD SEVERAL STORMS LATE THIS AFTERNOON AND EARLY THIS EVENING. WAJ
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 8:08 PM EDT | Severe Thunderstorm Warning | GSP | Swain | 67 min |
| May 2, 9:44 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg | 61 min |
| May 2, 10:51 PM EDT | Severe Thunderstorm Warning | GSP | Anson, Union | 69 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 1990Every severe thunderstorm warning in 1990
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.