Alert archive / North Carolina / Flash Flood Warnings in 1992

Flash Flood Warning 28, NWS Blacksburg, VA

April 21, 1992Davidson County, Guilford County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Apr 21, 1992, 6:07 PM EDT for Davidson County, Guilford County, North Carolina. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 1992, 6:07 PM EDT (22:07 UTC)
Expired
Apr 21, 1992, 9:00 PM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

Counties Davidson County, NC, Guilford County, NC

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.1 hours before the alert went out and 338 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

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

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.

In the hours before

Special weather statement, Apr 21, 12:39 PM EDT, 5 hours 28 minutes before
VAZ009-008-212100

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LYNCHBURG VA
1230 PM EDT TUE APR 21 1992

...A FLASH FLOOD WATCH HAS BEEN ISSUED UNTIL 2 AM WEDNESDAY FOR THE
FOLLOWING COUNTIES...AMHERST...BEDFORD...CAMPBELL...APPOMATTOX...
PITTSYLVANIA...HALIFAX AND CHARLOTTE AND THE INDEPENDENT CITIES OF
LYNCHBURG...DANVILLE...BEDFORD AND SOUTH BOSTON.

PEOPLE LIVING IN THE FLASH FLOOD AREAS SHOULD BE ALERT TO THE
POSSIBILITY OF RISING STREAMS AND INUNDATED ROADWAYS. BE PREPARED TO
MOVE TO HIGHER GROUND IF FLASH FLOODING OCCURS.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL COMMERCIAL RADIO AND TV
STATIONS FOR UPDATES. KEEP ALERT AND REPORT ANY FLOODING TO YOUR
LOCAL WEATHER OFFICE O!R TO LOCAL LAW ENFORCEMENT FOR RELAY TO THE
NATIONAL WEATHER SERVICE.

MONROE

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, 7:11 PM EDTFlash Flood WarningRNKIredell2 hr
Apr 21, 7:57 PM EDTFlash Flood WarningRNKRandolph3 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.