Alert archive / Virginia / Flash Flood Warnings in 2000

Flash Flood Warning 45, NWS Blacksburg, VA

September 2, 20004 counties in Virginia

NWS Blacksburg, VA issued this flash flood warning at Sep 2, 2000, 4:45 AM EDT for 4 counties in Virginia. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 2, 2000, 4:45 AM EDT (08:45 UTC)
Expired
Sep 2, 2000, 6:45 AM EDT
In force
2 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

Counties Amherst County, VA, City of Buena Vista, VA, City of Lexington, VA, Rockbridge County, VA

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 8.8 hours before the alert went out and 61 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, Roanoke, VA at 00:00Z on 2000-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 426 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, Roanoke, VA at 00:00Z on 2000-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
426 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
54 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 
WGUS51 KRNK 020848
FFWRNK
VAC009-163-530-678-021045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
445 AM EDT SAT SEP 2 2000

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BUENA VISTA IN WEST CENTRAL VIRGINIA...
  LEXINGTON IN WEST CENTRAL VIRGINIA...
  ROCKBRIDGE COUNTY IN WEST CENTRAL VIRGINIA... 
  AMHERST COUNTY IN CENTRAL VIRGINIA...

* UNTIL 645 AM EDT.

* AT 445 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH HEAVY RAINFALL 5 MILES NORTHEAST OF FORKS OF    
  BUFFALO.

LOCATIONS THREATENED BY HEAVY RAIN THROUGH 645 AM EDT INCLUDE

  LOWESVILLE

THE HEAVY RAINFALL WAS CAUSING FLASH FLOODING IN IN TRIBUTARIES TO 
THE JAMES AND MAURY RIVERS.

<<CALL TO ACTION>>DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE
WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED.

.END
10

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 1:48 AM EDTFlash Flood WarningRNKRockbridge, City of Buena Vista, City of Lexington3 hr
Sep 2, 2:14 AM EDTFlash Flood WarningRNKBedford, Botetourt3 hr
Sep 2, 1:45 PM EDTFlash Flood WarningRNKPulaski2 hr
Sep 2, 2:12 PM EDTFlash Flood WarningRNKFranklin3 hr
Sep 2, 3:30 PM EDTFlash Flood WarningRNKFloyd3 hr
Sep 2, 3:44 PM EDTFlash Flood WarningRNKPulaski3 hr
Sep 2, 4:49 PM EDTFlash Flood WarningRNKCampbell, City of Lynchburg3 hr
Sep 2, 6:28 PM EDTFlash Flood WarningRNKBath2 hr

Nearby

Flash Flood Warnings in Virginia, 2000Every flash flood warning in 2000

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.