Alert archive / South Carolina / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 254, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 22, 2020, 6:45 PM EDT for Greenville County, Spartanburg County, South Carolina. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 22, 2020, 6:45 PM EDT (22:45 UTC)
- Expired
- Jul 22, 2020, 7:30 PM EDT
- In force
- 45 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Greenville County, SC, Spartanburg County, SC
The radar
The Greer radar (KGSP), 5 km from the middle of the area, began a volume at 22:45 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.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.8 hours before the alert went out and 244 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1469 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 8:26 PM EDT | Areal Flood Advisory | GSP | Gaston, Mecklenburg | 116 min |
| Jul 21, 8:34 PM EDT | Areal Flood Advisory | GSP | Mecklenburg | 109 min |
| Jul 22, 1:54 PM EDT | Severe Thunderstorm Warning | GSP | Avery, Burke, Caldwell | 51 min |
| Jul 22, 2:20 PM EDT | Severe Thunderstorm Warning | GSP | Henderson, Polk, Rutherford | 40 min |
| Jul 22, 2:25 PM EDT | Special Weather Statement | GSP | Haywood | 35 min |
| Jul 22, 2:45 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Caldwell | 26 min |
| Jul 22, 2:55 PM EDT | Special Weather Statement | GSP | McDowell | 35 min |
| Jul 22, 3:09 PM EDT | Special Weather Statement | GSP | Polk | 36 min |
| Jul 22, 3:32 PM EDT | Special Weather Statement | GSP | Rutherford | 28 min |
| Jul 22, 3:33 PM EDT | Special Weather Statement | GSP | McDowell | 27 min |
| Jul 22, 3:38 PM EDT | Severe Thunderstorm Warning | GSP | McDowell, Rutherford | 32 min |
| Jul 22, 4:00 PM EDT | Special Weather Statement | GSP | McDowell | 30 min |
| Jul 22, 4:31 PM EDT | Special Weather Statement | GSP | Burke | 29 min |
| Jul 22, 7:27 PM EDT | Special Weather Statement | GSP | Union | 33 min |
| Jul 22, 2:30 PM EDT | Special Weather Statement | GSP | Oconee | 30 min |
| Jul 22, 5:22 PM EDT | Special Weather Statement | GSP | Spartanburg | 38 min |
| Jul 22, 6:08 PM EDT | Special Weather Statement | GSP | Spartanburg | 37 min |
| Jul 22, 7:20 PM EDT | Areal Flood Advisory | GSP | Greenville, Spartanburg | 2 hr |
| Jul 22, 4:15 PM EDT | Special Weather Statement | GSP | Hart | 30 min |
| Jul 22, 7:01 PM EDT | Special Weather Statement | GSP | Elbert | 29 min |
| Jul 22, 7:59 PM EDT | Special Weather Statement | GSP | Habersham | 31 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2020Every severe thunderstorm warning in 2020
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; radar from the NEXRAD Level II archive.