Alert archive / Virginia / Flash Flood Warnings in 2003

Flash Flood Warning 47, NWS Blacksburg, VA

August 7, 2003Carroll County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Aug 7, 2003, 1:34 AM EDT for Carroll 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
Aug 7, 2003, 1:34 AM EDT (05:34 UTC)
Expired
Aug 7, 2003, 4:30 AM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Counties, with a storm outline in the text

County Carroll County, VA

The radar

The Roanoke radar (KFCX), 49 km from the middle of the area, began a volume at 05:35 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 5.6 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 00:00Z on 2003-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 413 joules per kilogram.LCLEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2003-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.193958Sfc1 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
413 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1235 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KRNK 070536
FFWRNK
VAC035-070830-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
134 AM EDT THU AUG 7 2003

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARROLL COUNTY IN SOUTHWEST VIRGINIA

* UNTIL 430 AM EDT

* AT 134 AM EDT...THE PUBLIC REPORTED BIG REED ISLAND CREEK          
  BEGINNING TO COME OUT OF ITS BANKS ALONG HIGHWAY 664 EAST OF       
  HILLSVILLE. RADAR ESTIMATED THAT BETWEEN TWO AND A HALF TO THREE   
  INCHES OF RAIN HAD FALLEN SINCE 1030 PM IN THIS AREA. RAIN...HEAVY 
  AT TIMES..WILL CONTINUE TO FALL IN THIS AREA THROUGH               
  400 AM...RESULTING IN FLASH FLOODING OF BIG REED ISLAND CREEK.     
  OTHER CREEKS THAT WILL FLOOD INCLUDE STEWARTS CREEK                
  NEAR LAMBSBURG...SNAKE CREEK...AND HANKS BRANCH.

* SOME LOCATIONS THREATENED BY FLASH FLOODING THROUGH 430 AM EDT     
  INCLUDE
  GLADESBORO...
  RED HILL...
  CANA...
  
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN
AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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

LAT...LON 3689 8066 3670 8054 3664 8064 3658 8065
          3657 8079 3683 8084

$$

05
2 follow-up statements
000 
WGUS71 KRNK 070702
FFSRNK
VAC035-070830-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
258 AM EDT THU AUG 7 2003

...A FLASH FLOOD WARNING CONTINUES FOR THE FOLLOWING COUNTIES UNTIL
430 AM EDT...

  CARROLL COUNTY IN SOUTHWEST VIRGINIA

AT 255 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
MODERATE TO HEAVY RAINFALLL CONTINUING OVER MOST OF THE COUNTY.

ANOTHER ONE HALF TO ONE AND A HALF INCHES OF RAIN CAN BE EXPECTED 
THROUGH 430 AM. FLASH FLOODING OF THE FOLLOWING CREEKS CAN STILL BE 
ANTICIPATED...BIG REED ISLAND CREEK...SNAKE CREEK...AND STEWARTS 
CREEK.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.

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

$$

WP
000 
WGUS71 KRNK 070827
FFSRNK
VAC035-070845-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
427 AM EDT THU AUG 7 2003

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR CARROLL COUNTY 
HAS EXPIRED AS OF 430 AM EDT...

THE HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS IN 
THE WARNED AREA SHOULD BEGIN RECEDING...ENDING THE FLASH FLOOD 
THREAT. EVEN THOUGH STREAMS AND CREEKS WERE RECEDING...SOME ROADWAYS 
STILL MAY BE COVERED WITH WATER. MOTORISTS ARE ADVISED TO AVOID 
DRIVING THROUGH FLOODED ROADWAYS.

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

$$

WP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 8:21 PM EDTFlash Flood WarningRNKCarroll2 hr
Aug 7, 1:09 AM EDTFlash Flood WarningRNKPatrick3 hr
Aug 7, 7:56 PM EDTFlash Flood WarningRNKTazewell3 hr

Nearby

Flash Flood Warnings in Virginia, 2003Every flash flood warning in 2003

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.