Alert archive / Virginia / Flash Flood Warnings in 2002

Flash Flood Warning 18, NWS Blacksburg, VA

June 4, 2002Campbell County, City of Lynchburg, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jun 4, 2002, 7:58 PM EDT for Campbell County, City of Lynchburg, Virginia. It was in force for 92 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
Jun 4, 2002, 7:58 PM EDT (23:58 UTC)
Expired
Jun 4, 2002, 9:30 PM EDT
In force
92 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

Counties Campbell County, VA, City of Lynchburg, VA

The radar

The Roanoke radar (KFCX), 107 km from the middle of the area, began a volume at 00:00 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, 12.0 hours before the alert went out and 36 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 2002-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 503 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 2002-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
503 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KRNK 042358
FFWRNK
VAC031-680-050130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
756 PM EDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LYNCHBURG CITY IN CENTRAL VIRGINIA
  NORTH CENTRAL CAMPBELL COUNTY IN CENTRAL VIRGINIA

* UNTIL 930 PM EDT.

* AT 756 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY 
HEAVY RAINFALL 3 MILES WEST OF LYNCHBURG CITY...MOVING EAST AT 
15 MPH.  AS THIS STORM PASSES OVER THE URBAN AREAS THE TORRENTIAL 
RAINFALL WILL LIKELY CAUSE FLASH FLOODING OF ROADS...RESULTING IN 
SOME ROAD CLOSURES.

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

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.

$$

LAT...LON 3740 7925 3733 7926 3733 7901 3739 7901
          3739 7911 3746 7920

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 2:39 PM EDTSevere Thunderstorm WarningRNKGrayson36 min
Jun 4, 3:03 PM EDTSevere Thunderstorm WarningRNKCarroll57 min
Jun 4, 3:15 PM EDTSevere Thunderstorm WarningRNKGrayson30 min
Jun 4, 3:28 PM EDTSevere Thunderstorm WarningRNKWythe47 min
Jun 4, 3:54 PM EDTSevere Thunderstorm WarningRNKBotetourt51 min
Jun 4, 4:24 PM EDTSevere Thunderstorm WarningRNKMontgomery51 min
Jun 4, 4:36 PM EDTSevere Thunderstorm WarningRNKBedford39 min
Jun 4, 4:46 PM EDTSevere Thunderstorm WarningRNKBotetourt29 min
Jun 4, 5:03 PM EDTSevere Thunderstorm WarningRNKRoanoke42 min
Jun 4, 5:16 PM EDTSevere Thunderstorm WarningRNKBedford44 min
Jun 4, 5:28 PM EDTSevere Thunderstorm WarningRNKCraig47 min
Jun 4, 7:41 PM EDTSevere Thunderstorm WarningRNKAmherst, Appomattox, Bedford, Campbell, City of Lynchburg49 min

Nearby

Flash Flood Warnings in Virginia, 2002Every flash flood warning in 2002

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.