Alert archive / Virginia / Flash Flood Warnings in 2003

Flash Flood Warning 8, NWS Blacksburg, VA

June 4, 2003Pittsylvania County, City of Danville, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jun 4, 2003, 10:40 PM EDT for Pittsylvania County, City of Danville, 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 outline as issued.

The facts

Issued: Jun 4, 2003, 10:40 PM EDT (02:40 UTC)
Expired: Jun 5, 2003, 12:45 AM EDT
In force: 2 hr
Issued by: NWS Blacksburg, VA
Area: Counties, with a storm outline in the text

Counties City of Danville, VA, Pittsylvania County, VA

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 2.7 hours before the alert went out and 51 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1619 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 170 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 050243
FFWRNK
VAC143-590-050445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1040 PM EDT WED JUN 4 2003

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DANVILLE IN SOUTH CENTRAL VIRGINIA
  PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA

* UNTIL 1245 AM EDT

* AT 1040 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE 
OF THUNDERSTORMS OVER WESTERN PITTSYLVANIA COUNTY.  THESE 
THUNDERSTORMS WERE SLOWLY MOVING TO THE EAST AND WILL RESULT IN VERY 
HEAVY RAINFALL ACROSS CENTRAL AND SOUTHERN PITTSYLVANIA 
COUNTY...INCLUDING THE CITY OF DANVILLE.

* LOCATIONS THREATENED BY HEAVY RAIN INCLUDE...CASCADE...CHATHAM... 
  CLIMAX...DANVILLE...DRY FORK...JAVA...KEELING...
  RINGGOLD...SWANSONVILLE AND WESTOVER HILLS...

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 3681 7959 3656 7971 3655 7941 3657 7923
          3690 7915 3699 7945

$$

11

1 follow-up statement

000 
WGUS71 KRNK 050358
FFSRNK
VAC143-050430-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1156 PM EDT WED JUN 4 2003

...FLASH FLOOD WARNING FOR PITTSYLVANIA COUNTY AND THE CITY OF 
DANVILLE CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL WAS ENDING
ACROSS THE WARNED AREA...AND THE FLOOD THREAT WAS DIMINISHING. SOME
MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING IS
ENDING. THUS...THE FLASH FLOOD WARNING IS BEING CANCELED.

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.

$$
06

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 8:26 PM EDT	Flash Flood Warning	RNK	Henry, Patrick, City of Martinsville	3 hr
Jun 4, 9:48 PM EDT	Severe Thunderstorm Warning	RNK	Henry, City of Martinsville	57 min
Jun 4, 9:50 PM EDT	Severe Thunderstorm Warning	RNK	Henry, City of Martinsville	55 min

Nearby

Flash Flood Warnings in Virginia, 2003 Every 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.