Alert archive / Virginia / Flash Flood Warnings in 1992

Flash Flood Warning 53, NWS Blacksburg, VA

June 8, 1992Botetourt County, Roanoke County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jun 8, 1992, 4:11 PM EDT for Botetourt County, Roanoke County, Virginia. It was in force for 84 min.

The area

The counties it named.

The facts

Issued
Jun 8, 1992, 4:11 PM EDT (20:11 UTC)
Expired
Jun 8, 1992, 5:35 PM EDT
In force
84 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

Counties Botetourt County, VA, Roanoke County, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.2 hours before the alert went out and 145 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 1992-06-08Temperature 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 1992-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.1939Sfc1 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
15 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KROA 082015
FFWROA
VAC161-770-023-775-082215-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ROANOKE VA
411 PM EDT MON JUN 8 1992
 
THE NATIONAL WEATHER SERVICE IN ROANOKE VAHAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  615 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL VIRGINIA
 
   ...EASTERN ROANOKE COUNTY
 
  AND THE INDEPENDENT CITY OF
 
   ...ROANOKE
 
IN SOUTHWEST VIRGINIA
 
   ...SOUTHERN BOTETOURT COUNTY
 
  AND THE INDEPENDENT CITY OF
 
   ...SALEM
 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ARE MOVING SLOWLY THROUGH
SOUTHERN BOTETOURT AND EASTERN ROANOKE COUNTIES. RAINFALL AMOUNTS OF
OVER AN INCH IN LESS THAN AN HOUR ARE BEING RECORDED. THIS WILL LIKELY
CAUSE FLASH FLOODING ALONG CREEKS AND SMALL STREAMS...ALSO STREET
FLOODING IN THE CITIES.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
JACKSON

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, Jun 8, 2:17 PM EDT, 1 hour 54 minutes before
VAZ008-009-013>016-081900-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE ROANOKE VA
215 PM EDT MON JUN 8 1992

...THUNDERSTORMS DEVELOPING ACROSS SOUTHWEST VIRGINIA...

AT 2 PM EDT RADAR SHOWED AREAS OF THUNDERSTORMS OVER THE COUNTIES
OF GILES..CARROLL..AND FRANKLIN IN SOUTHWEST VIRGINIA MOVING NORTH
EAST AT 20 MPH. SOME OF THESE STORMS WERE PRODUCING HEAVY RAINS..ALSO
DANGEROUS LIGHTNING.

WITH THE GROUND ALREADY SATURATED HEAVY AMOUNTS OF RAIN WILL LIKELY
PRODUCE FLOODING OF SMALL STREAM AND CREEKS.

PEOPLE LIVING IN FLOOD PRONG AREAS IN THESE COUNTIES SHOULD BE
ALERT FOR RISING WATER AND BE PREPARED TO MOVE TO HIGHER GROUND.
CG
Special weather statement, Jun 8, 3:46 PM EDT, 25 minutes before
VAZ008-009-013>016-082300-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE ROANOKE VA
345 PM EDT MON JUN 8 1992

...LINE OF THUNDERSTORMS ACROSS THE NEW RIVER VALLEY..

AT 330 PM EDT RADAR SHOWED A LINE OF THUNDERSTORMS OVER THE COUNTIES
OF CRAIG..MONTGOMERY..AND PULASKI IN SOUTHWEST VIRGINIA.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY DOWNPOURS DANGEROUS
LIGHTNING AND POSSIBLE FLOODING OF SMALL STREAMS CREEKS AND FLOOD
PRONE AREAS.

PEOPLE LIVING IN FLOOD PRONG AREAS IN THESE COUNTIES SHOULD BE
ALERT FOR RISING WATER AND BE PREPARED TO MOVE TO HIGHER GROUND.

THIS LINE OF STORMS WAS MOVING EAST AT 25 MPH AND WILL BE MOVING
INTO THE COUNTIES OF FLOYD ROANOKE AND BOTETOURT WITHIN THE HOUR.
CG

Nearby

Flash Flood Warnings in Virginia, 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.