Alert archive / North Carolina / Flash Flood Warnings in 1992

Flash Flood Warning 34, NWS Blacksburg, VA

April 21, 1992Randolph County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Apr 21, 1992, 7:57 PM EDT for Randolph County, North Carolina. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 1992, 7:57 PM EDT (23:57 UTC)
Expired
Apr 21, 1992, 11:00 PM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Randolph County, NC

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 12.0 hours before the alert went out and 313 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, Charleston AFB, SC at 12:00Z on 1992-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 734 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, Charleston AFB, SC at 12:00Z on 1992-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 square meters per square second.193958Sfc1 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
734 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGSO 212357
FFWGSO
NCC151-220300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE GREENSBORO NC
757 PM EDT TUE APR 21 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 1100 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE STATE OF NORTH CAROLINA
      RANDOLPH

AT 800 PM EMERGENCY MANAGEMENT IN RANDOLPH COUNTY REPORTED THAT
THE DEEP RIVER WAS 5 FEET ABOVE ITS BANKS. EVACUATION OF HOUSES
WAS UNDER WAY IN CEDAR FALLS NORTHEAST OF ASHEBORO.
RANDOLPH COUNTY WILL CONTINUE TO ACCUMULATE RAIN FOR THE NEXT
COUPLE OF HOURS.

A FLASH FLOOD WARNING MEANS FLOODING IS OCCURRING OR IS IMMINENT.
PEOPLE IN THE WARNED AREA SHOULD TAKE IMMEDIATE ACTION TO PROTECT
LIFE AND PROPERTY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOOD WATERS.  IF FLASH FLOODING IS OBSERVED...
ACT QUICKLY.  MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

 IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE
 IMMEDIATELY.  WHEN IT IS SAFE..ASK YOUR NEAREST LAW ENFORCEMENT
 AGENCY TO RELAY YOUR SEVERE WEATHER MREPORT TO THE LOCAL NATIONAL
 WEATHER SERVICE OFFICE.

 GTR

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 20, 9:27 PM EDTFlash Flood WarningRNKAlleghany3 hr
Apr 20, 11:44 PM EDTFlash Flood WarningRNKAlleghany3 hr
Apr 21, 5:14 PM EDTFlash Flood WarningRNKSurry3 hr
Apr 21, 5:53 PM EDTFlash Flood WarningRNKDavidson, Guilford3 hr
Apr 21, 6:07 PM EDTFlash Flood WarningRNKDavidson, Guilford3 hr
Apr 21, 7:11 PM EDTFlash Flood WarningRNKIredell2 hr

Nearby

Flash Flood Warnings in North Carolina, 1992Every flash flood warning in 1992

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.