Alert archive / North Carolina / Flash Flood Warnings in 2022
Flash Flood Warning 21, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 3, 2022, 9:03 AM EDT for Macon County, North 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
- Sep 3, 2022, 9:03 AM EDT (13:03 UTC)
- Expired
- Sep 3, 2022, 11:42 AM EDT
- In force
- 3 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Flood severity
- None
County Macon County, NC
The radar
The Knoxville radar (KMRX), 113 km from the middle of the area, began a volume at 13:07 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 1.1 hours before the alert went out and 221 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
- 274 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- 21 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 |
|---|---|---|---|---|
| Sep 3, 3:00 PM EDT | Flood Watch | GSP | Alexander, Avery, Buncombe, Burke, Caldwell, Graham and 12 more | 53 hr |
| Sep 3, 6:25 AM EDT | Areal Flood Advisory | GSP | Oconee | 3 hr |
| Sep 3, 7:04 AM EDT | Flash Flood Warning | GSP | Oconee | 3 hr |
| Sep 3, 7:42 AM EDT | Areal Flood Advisory | GSP | Oconee | 2 hr |
| Sep 3, 8:19 AM EDT | Flash Flood Warning | GSP | Oconee | 3 hr |
| Sep 3, 9:13 AM EDT | Flash Flood Warning | GSP | Anderson, Oconee, Pickens | 3 hr |
| Sep 3, 11:08 AM EDT | Areal Flood Warning | GSP | Oconee | 3 hr |
| Sep 3, 12:23 PM EDT | Areal Flood Advisory | GSP | Oconee | 112 min |
| Sep 3, 2:00 PM EDT | Areal Flood Advisory | GSP | Oconee | 3 hr |
| Sep 3, 12:57 PM EDT | Areal Flood Advisory | GSP | Franklin, Hart, Stephens | 2 hr |
Nearby
Flash Flood Warnings in North Carolina, 2022Every flash flood warning in 2022
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.