Alert archive / Virginia / Flash Flood Warnings in 2000

Flash Flood Warning 5, NWS Blacksburg, VA

April 17, 200010 counties in Virginia

NWS Blacksburg, VA issued this flash flood warning at Apr 17, 2000, 9:04 PM EDT for 10 counties in Virginia. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 17, 2000, 9:04 PM EDT (01:04 UTC)
Expired
Apr 17, 2000, 11:00 PM EDT
In force
116 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

Counties Carroll County, VA, City of Martinsville, VA, City of Roanoke, VA, City of Salem, VA, Floyd County, VA, Franklin County, VA, Henry County, VA, Montgomery County, VA, Patrick County, VA, Roanoke County, VA

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 1.1 hours before the alert went out and 64 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 2000-04-18Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2000-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -173 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
905 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-173 m²/s²
0-3 km storm-relative helicity
-38 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 180116 COR
FFWRNK
VAC035-063-067-089-121-141-161-690-770-775-180300-

FLOOD WARNING...CORRECTION
NATIONAL WEATHER SERVICE BLACKSBURG VA
905 PM EDT MON APR 17 2000

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS EXTENDED THE

* FLOOD WARNING FOR FOR SMALL STREAMS AND CREEKS FOR...
  FRANKLIN COUNTY IN WEST CENTRAL VIRGINIA...
  ROANOKE COUNTY IN WEST CENTRAL VIRGINIA...
  ROANOKE CITY IN WEST CENTRAL VIRGINIA...
  SALEM IN WEST CENTRAL VIRGINIA...
  CARROLL COUNTY IN SOUTHWEST VIRGINIA...
  SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHWEST VIRGINIA...
  PATRICK COUNTY IN SOUTHWEST VIRGINIA...
  FLOYD COUNTY IN SOUTHWEST VIRGINIA...
  HENRY COUNTY IN SOUTH CENTRAL VIRGINIA...
  MARTINSVILLE IN SOUTH CENTRAL VIRGINIA...

* UNTIL 1100 PM EDT.

* AT 900 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS CONTINUE TO 
  REPORT SOME STREAM FLOODING ACROSS THESE COUNTIES AND INDEPENDENT
  CITIES. 

IN ROANOKE COUNTY...TINKER CREEK WAS OUT OF ITS BANKS AND WITHIN 12 
INCHES OF WISE AVENUE.

IN FRANKLIN COUNTY...SCHOOL BOARD ROAD WAS CLOSED DUE TO FLOODING.

IN CARROLL COUNTY...SNAKE CREEK BRIDGE WAS CLOSED ON ROUTE 58 DUE
TO FLOODING.

IN MONTGOMERY COUNTY...MCCOY ROAD WAS CLOSED DUE TO FLOODING. 

IN PATRICK COUNTY...2 MILES EAST OF STUART...SPOON CREEK WAS FLOODED 
AND WAS OVER PARTS OF ROUTE 58.

AT 9:00 PM...WEATHER SERVICE RADAR INDICATED THAT MODERATE RAIN WILL 
CONTINUE OVER THESE COUNTIES UNTIL 10:0.0 PM.  THIS ADDITIONAL RUNOFF 
WILL AGGRAVATE THE ONGOING FLOODING. 

FOR YOUR SAFETY...BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER 
TO RECOGNIZE THE DANGERS OF FLOODING.

$$

PEM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 8:11 PM EDTSevere Thunderstorm WarningRNKPittsylvania49 min

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.