Alert archive / North Carolina / Flash Flood Warnings in 1991

Flash Flood Warning 2, NWS Greenville-Spartanburg, SC

March 29, 1991Buncombe County, Henderson County, Polk County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Mar 29, 1991, 12:28 PM EST for Buncombe County, Henderson County, Polk County, North Carolina. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Mar 29, 1991, 12:28 PM EST (17:28 UTC)
Expired
Mar 29, 1991, 2:30 PM EST
In force
2 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

Counties Buncombe County, NC, Henderson County, NC, Polk County, NC

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 5.5 hours before the alert went out and 182 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, Athens Municipal, GA at 12:00Z on 1991-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 450 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, Athens Municipal, GA at 12:00Z on 1991-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 293 square meters per square second.1939587897Sfc1 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
450 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
293 m²/s²
0-3 km storm-relative helicity
356 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 11:33 AM ESTFlash Flood WarningGSPHaywood, Jackson, Transylvania117 min
Mar 29, 12:33 PM ESTFlash Flood WarningGSPAvery, Mitchell117 min
Mar 29, 12:33 PM ESTFlash Flood WarningGSPWatauga117 min
Mar 29, 1:31 PM ESTSevere Thunderstorm WarningGSPMecklenburg59 min

Nearby

Flash Flood Warnings in North Carolina, 1991Every flash flood warning in 1991

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.