Alert archive / South Carolina / Flash Flood Warnings in 2024
Flash Flood Warning 35, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 21, 2024, 9:50 PM EDT for Chester County, South Carolina. It was in force for 3 hr. 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 21, 2024, 9:50 PM EDT (01:50 UTC)
- Expired
- Jul 22, 2024, 12:45 AM EDT
- In force
- 3 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Flood severity
- None
County Chester County, SC
The radar
The Columbia radar (KCAE), 83 km from the middle of the area, began a volume at 01:53 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
Roanoke, VA (KRNK), launched 00:00Z, 1.8 hours before the alert went out and 316 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
- 696 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 749 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -2.9
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 8:07 PM EDT | Flash Flood Warning | GSP | Iredell | 3 hr |
| Jul 21, 9:12 PM EDT | Special Weather Statement | GSP | Union | 33 min |
| Jul 21, 9:22 PM EDT | Flash Flood Warning | GSP | Buncombe, Henderson | 3 hr |
| Jul 22, 3:54 PM EDT | Special Weather Statement | GSP | Buncombe | 36 min |
| Jul 22, 4:30 PM EDT | Special Weather Statement | GSP | Buncombe | 45 min |
| Jul 22, 4:42 PM EDT | Special Weather Statement | GSP | McDowell | 33 min |
| Jul 22, 5:12 PM EDT | Special Weather Statement | GSP | Jackson | 33 min |
| Jul 22, 5:46 PM EDT | Special Weather Statement | GSP | Henderson | 29 min |
| Jul 22, 5:57 PM EDT | Special Weather Statement | GSP | Jackson | 33 min |
| Jul 22, 6:54 PM EDT | Areal Flood Advisory | GSP | Buncombe, Henderson | 2 hr |
| Jul 21, 8:16 PM EDT | Special Weather Statement | GSP | Chester | 29 min |
| Jul 21, 8:47 PM EDT | Special Weather Statement | GSP | York | 28 min |
| Jul 21, 9:00 PM EDT | Areal Flood Advisory | GSP | Chester | 2 hr |
Nearby
Flash Flood Warnings in South Carolina, 2024Every flash flood warning in 2024
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.