Alert archive / Virginia / Flash Flood Warnings in 2005

Flash Flood Warning 13, NWS Blacksburg, VA

June 29, 2005Campbell County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jun 29, 2005, 6:08 PM EDT for Campbell County, Virginia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 29, 2005, 6:08 PM EDT (22:08 UTC)
Expired
Jun 29, 2005, 9:15 PM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Counties, with a storm outline in the text

County Campbell County, VA

The radar

The Roanoke radar (KFCX), 108 km from the middle of the area, began a volume at 22:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 10.1 hours before the alert went out and 37 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 12:00Z on 2005-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 195 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2005-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
195 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
805 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
27 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 292212
FFWRNK
VAC031-300115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
608 PM EDT WED JUN 29 2005

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL CAMPBELL COUNTY IN CENTRAL VIRGINIA

* UNTIL 915 PM EDT

* AT 607 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

* THE THUNDERSTORMS PRODUCING THE HEAVY RAIN WILL REMAIN NEAR GLADYS.

AN ADDITIONAL 1 TO 2 INCHES OF RAIN WILL LIKELY OCCUR OVER CENTRAL 
AND SOUTHERN CAMPBELL COUNTY THROUGH 8:00 PM BEFORE THE STORMS 
WEAKEN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS. SENECA CREEK WILL LIKELY FLOOD AS WELL.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. REMEMBER TURN AROUND...DONT DROWN.

PLEASE RELAY REPORTS OF FLOODING TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

LAT...LON 3726 7901 3724 7924 3713 7923 3707 7891

$$

JH
1 follow-up statement
000 
WGUS71 KRNK 292357
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
755 PM EDT WED JUN 29 2005

VAC031-300005-
CAMPBELL VA-
755 PM EDT WED JUN 29 2005

...THE FLASH FLOOD WARNING FOR CENTRAL CAMPBELL COUNTY IS 
CANCELLED...

AT 7:53 PM...RADAR INDICATED THAT THE THUNDERSTORM PRODUCING VERY 
HEAVY RAIN OVER CAMPBELL COUNTY HAD DISSIPATED. SOME ADDITIONAL 
LIGHT SHOWERS ARE POSSIBLE THIS EVENING BUT SHOULD NOT BE HEAVY 
ENOUGH TO CAUSE ANY FLOODING PROBLEMS.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER 
SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4.

LAT...LON 3726 7901 3724 7924 3713 7923 3707 7891

$$

JH

Nearby

Flash Flood Warnings in Virginia, 2005Every flash flood warning in 2005

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; radar from the NEXRAD Level II archive.