Alert archive / North Carolina / Flash Flood Warnings in 2026

Flash Flood Warning 15, NWS Greenville-Spartanburg, SC

September 7, 2026McDowell County, Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 7, 2026, 5:20 AM EDT for McDowell County, Rutherford 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 7, 2026, 5:20 AM EDT (09:20 UTC)
Expired
Sep 7, 2026, 7:55 AM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
Unknown

Counties McDowell County, NC, Rutherford County, NC

The radar

The Greer radar (KGSP), 76 km from the middle of the area, began a volume at 09:21 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 00:00Z, 9.3 hours before the alert went out and 334 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2026-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1070 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2026-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1070 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
1883 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this flash flood warning went out at Sep 6, 7:22 PM EDT, 9 hours 58 minutes earlier.

Area forecast discussion, Sep 6, 7:22 PM EDT, 9 hours 58 minutes before
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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 6, 8:43 PM EDTSpecial Weather StatementGSPRowan47 min
Sep 7, 12:37 AM EDTSpecial Weather StatementGSPBurke53 min
Sep 7, 2:29 AM EDTAreal Flood AdvisoryGSPMcDowell3 hr
Sep 7, 3:44 AM EDTAreal Flood AdvisoryGSPMcDowell99 min
Sep 7, 6:11 AM EDTSpecial Weather StatementGSPPolk49 min
Sep 7, 4:53 AM EDTAreal Flood AdvisoryGSPPickens3 hr
Sep 7, 6:23 AM EDTAreal Flood AdvisoryGSPAnderson, Pickens3 hr
Sep 7, 7:02 AM EDTSpecial Weather StatementGSPSpartanburg43 min
Sep 7, 8:29 AM EDTAreal Flood AdvisoryGSPAnderson3 hr

Nearby

Flash Flood Warnings in North Carolina, 2026Every flash flood warning in 2026

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.