Alert archive / North Carolina / Flash Flood Warnings in 1991

Flash Flood Warning 4, NWS Greenville-Spartanburg, SC

March 29, 1991Watauga County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Mar 29, 1991, 12:33 PM EST for Watauga County, North Carolina. It was in force for 117 min.

The area

The counties it named.

The facts

Issued
Mar 29, 1991, 12:33 PM EST (17:33 UTC)
Expired
Mar 29, 1991, 2:30 PM EST
In force
117 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Watauga County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.6 hours before the alert went out and 162 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, Greensboro/Hi Pt, NC at 12:00Z on 1991-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 12:00Z on 1991-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 472 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
472 m²/s²
0-3 km storm-relative helicity
852 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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, 12:28 PM ESTFlash Flood WarningGSPBuncombe, Henderson, Polk2 hr
Mar 29, 12:33 PM ESTFlash Flood WarningGSPAvery, Mitchell117 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.