Alert archive / North Carolina / Flash Flood Warnings in 2023
Flash Flood Warning 12, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 15, 2023, 9:53 PM EDT for Alexander County, Caldwell 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
- Jul 15, 2023, 9:53 PM EDT (01:53 UTC)
- Expired
- Jul 16, 2023, 1:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Alexander County, NC, Caldwell County, NC
The radar
The Greer radar (KGSP), 141 km from the middle of the area, began a volume at 01:54 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 00:00Z, 1.9 hours before the alert went out and 132 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
- 1658 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 944 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 9:13 PM EDT | Areal Flood Advisory | GSP | Caldwell | 107 min |
| Jul 15, 11:00 PM EDT | Flash Flood Warning | GSP | Burke | 2 hr |
| Jul 15, 11:43 PM EDT | Flash Flood Warning | GSP | Alexander, Iredell | 107 min |
| Jul 16, 12:56 AM EDT | Areal Flood Warning | GSP | Alexander, Caldwell | 3 hr |
| Jul 16, 4:14 AM EDT | Areal Flood Advisory | GSP | Burke, Caldwell | 3 hr |
Nearby
Flash Flood Warnings in North Carolina, 2023Every flash flood warning in 2023
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.