Alert archive / North Carolina / Flash Flood Warnings in 1990

Flash Flood Warning 39, NWS Greenville-Spartanburg, SC

October 12, 1990Watauga County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Oct 12, 1990, 2:23 PM EDT for Watauga County, North Carolina. It was in force for 97 min.

The area

The counties it named.

The facts

Issued
Oct 12, 1990, 2:23 PM EDT (18:23 UTC)
Expired
Oct 12, 1990, 4:00 PM EDT
In force
97 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Watauga County, NC

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.4 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 1990-10-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 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, Greensboro/Hi Pt, NC at 12:00Z on 1990-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.19395878Sfc1 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
92 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
209 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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
Oct 12, 10:02 AM EDTFlash Flood WarningGSPAvery4 hr
Oct 12, 12:27 PM EDTFlash Flood WarningGSPGaston, Mecklenburg4 hr
Oct 12, 1:00 PM EDTFlash Flood WarningGSPWatauga3 hr
Oct 12, 2:23 PM EDTFlash Flood WarningGSPAvery4 hr
Oct 12, 3:17 PM EDTFlash Flood WarningGSPAshe4 hr
Oct 12, 3:34 PM EDTFlash Flood WarningGSPBurke4 hr
Oct 12, 3:58 PM EDTFlash Flood WarningGSPWatauga3 hr
Oct 12, 4:55 PM EDTFlash Flood WarningGSPPolk, Rutherford2 hr
Oct 12, 5:55 PM EDTFlash Flood WarningGSPCleveland2 hr
Oct 12, 6:37 PM EDTFlash Flood WarningGSPGaston2 hr
Oct 12, 7:03 PM EDTFlash Flood WarningGSPAvery, Burke, Caldwell, McDowell3 hr
Oct 12, 7:08 PM EDTFlash Flood WarningGSPPolk, Rutherford2 hr
Oct 12, 7:25 PM EDTFlash Flood WarningGSPWatauga3 hr

Nearby

Flash Flood Warnings in North Carolina, 1990Every flash flood warning in 1990

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.