Alert archive / Virginia / Flash Flood Warnings in 1992

Flash Flood Warning 45, NWS Blacksburg, VA

June 4, 1992Franklin County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jun 4, 1992, 7:48 PM EDT for Franklin County, Virginia. It was in force for 117 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1992, 7:48 PM EDT (23:48 UTC)
Expired
Jun 4, 1992, 9:45 PM EDT
In force
117 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Franklin County, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.8 hours before the alert went out and 101 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 1992-06-04Temperature 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 1992-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
558 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
122 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 042350
FFWROA
VAC067-050145-
 
BULLETIN
FLOOD WARNING
NATIONAL WEATHER SERVICE ROANOKE VA
748 PM EDT THU JUN 4 1992
 
THE NATIONAL WEATHER SERVICE IN ROANOKE VA HAS ISSUED A
FLOOD WARNING FOR SMALL STREAMS EFFECTIVE UNTIL  945 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL VIRGINIA
 
   ...FRANKLIN COUNTY
 
AT 740 PM RADAR SHOWED THAT RAIN WAS AGAIN ON THE INCREASE IN FRANKLIN
COUNTY. AUTOMATED GAGES IN SOME OF THE HIGHER LOCATIONS ARE BEGINNING
TO SHOW AVERAGES OF ABOUT 6/10'S OF AN INCH PER HOUR...ENOUGH TO
TRIGGER SOME FLOODING ALONG CREEKS LIKE THE MAGGODAY AND BLACKWATER.
 
SOME ROADS WILL LIKELY EXPERIENCE SOME PROBLEMS IN SPOTS AND MOTORISTS
ARE URGED NOT TO DRIVE ACROSS ROsADWAYS COVERED WITH WATER.
 
AT THIS TIME IT APPEARS THAT THE HEAVIER RAIN MAY SLACKEN AROUND
9 TO 930 PM IN THE COUNTY...ESPECIALLY OVER CRITICAL WESTERN PARTS
OF THE COUNTY.
 
STAY TUNED TO RADIO AND TV FOR UPDATES.
 
MCINTOSH

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 4, 2:26 PM EDT, 5 hours 22 minutes before
VAZ008-009-013-014-015-016-042015-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE ROANOKE VA
219 PM EDT THU JUN 4 1992

AT 215 PM WEATHER RADAR SHOWED RAIN CONTINUING ACROSS MUCH OF
SOUTHWEST AND WESTCENTRAL SECTIONS OF VIRGINIA. REPORTS FROM AUTOMATED
RAIN GAGES IN THE AREA REVEAL THAT SOME OF THE RAIN HAS BEEN MODERATE
TO HEAVY. FANCY GAP IN CARROLL COUNTY REPORTED A STORM TOTAL SO FAR OF
OVER 3 INCHES...WHILE A SPOTTER IN FLOYD COUNTY REPORTED A
STORM TOTAL OF 2.6 INCHES. MUCH OF THIS HAS BEEN SINCE 8 AM TODAY.

NUMEROUS SMALLER STREAMS HAVE ALREADY REACHED BANKFULL IN MOST OF THE
AREA.  SOME HAVE BEGUN EDGING ACROSS ROADWAYS IN ISOLATED SECTIONS
OF FLOYD COUNTY.

RAINFALL IS EXPECTED TO CONTINUE INTO THE AFTERNOON AND EVENING
HOURS.  WITH THUNDERSTORMS A POSSIBILITY...HEAVIER RAIN AMOUNTS IN A
SHORT TIME MAY OCCUR.  IN THAT CASE FLASH FLOODING IS A DEFINITE
THREAT.

PERSONS ALONG THE SMALLER STREAMS SHOULD REMAIN ALERT AND TUNED TO
RADIO AND TELEVISION FOR UPDATES ON THIS DEVELOPING FLOOD THREAT
AND THE LIKELIHOOD OF WATCHES AND WARNINGS.

MCINTOSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 6:56 PM EDTFlash Flood WarningRNKWythe3 hr

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.