Alert archive / Virginia / Flash Flood Warnings in 2008

Flash Flood Warning 39, NWS Blacksburg, VA

July 8, 2008Appomattox County, Campbell County, Charlotte County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jul 8, 2008, 1:51 AM EDT for Appomattox County, Campbell County, Charlotte 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: Jul 8, 2008, 1:51 AM EDT (05:51 UTC)
Expired: Jul 8, 2008, 5:17 AM EDT
In force: 3 hr
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: None

Counties Appomattox County, VA, Campbell County, VA, Charlotte County, VA

The radar

The Roanoke radar (KFCX), 128 km from the middle of the area, began a volume at 05:53 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 00:00Z, 5.9 hours before the alert went out and 58 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: 1391 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1135 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 54 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 080551
FFWRNK
VAC011-031-037-081145-
/O.NEW.KRNK.FF.W.0039.080708T0551Z-080708T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
151 AM EDT TUE JUL 8 2008

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CHARLOTTE COUNTY IN SOUTH CENTRAL VIRGINIA
  EASTERN CAMPBELL COUNTY IN CENTRAL VIRGINIA
  APPOMATTOX COUNTY IN CENTRAL VIRGINIA

* UNTIL 745 AM EDT.

* AT 149 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO APPOMATTOX
  NATIONAL HISTORIC PARK...SPOUT SPRING...OAKVILLE...EVERGREEN...
  CONCORD AND APPOMATTOX

ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES ARE POSSIBLE IN 
THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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. MOVE TO HIGHER GROUND.

PLEASE RELAY ANY REPORTS OF FLOODING INCLUDING MUDSLIDES...OR ROAD
CLOSURES TO THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING
TOLL FREE...1...8 6 6...2 1 5...4 3 2 4. DELAYED REPORTS ARE WELCOME.

LAT...LON 3719 7867 3703 7902 3703 7904 3723 7914
      3753 7884 3721 7868 3720 7868

$$

2 follow-up statements

000 
WGUS71 KRNK 080743
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
341 AM EDT TUE JUL 8 2008

VAC011-031-037-081145-
/O.CON.KRNK.FF.W.0039.000000T0000Z-080708T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLOTTE VA-CAMPBELL VA-APPOMATTOX VA-
341 AM EDT TUE JUL 8 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM EDT FOR
APPOMATTOX...EASTERN CAMPBELL AND NORTHWESTERN CHARLOTTE COUNTIES...

AT 340 AM...ALTHOUGH RAIN HAS ENDED...RAPID RISES ON SMALL STREAMS 
MAY STILL OCCUR DUE TO RUNOFF. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO APPOMATTOX
NATIONAL HISTORIC PARK...SPRING MILLS...SPOUT SPRING...OAKVILLE...
MIKE...EVERGREEN...CONCORD AND APPOMATTOX

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

ESPECIALLY AT NIGHT...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. MOVE TO HIGHER GROUND.

PLEASE RELAY ANY REPORTS OF FLOODING INCLUDING MUDSLIDES...OR ROAD
CLOSURES TO THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING
TOLL FREE...1...8 6 6...2 1 5...4 3 2 4. DELAYED REPORTS ARE WELCOME.

LAT...LON 3719 7867 3703 7902 3703 7904 3723 7914
      3753 7884 3721 7868 3720 7868

$$

000 
WGUS71 KRNK 080917
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
517 AM EDT TUE JUL 8 2008

VAC011-031-037-080927-
/O.CAN.KRNK.FF.W.0039.000000T0000Z-080708T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLOTTE VA-CAMPBELL VA-APPOMATTOX VA-
517 AM EDT TUE JUL 8 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR APPOMATTOX...
EASTERN CAMPBELL AND NORTHWESTERN CHARLOTTE COUNTIES...

FLOODING HAS ENDED OVER THE WARNED AREA...THUS THE FLASH FLOOD
WARNING HAS BEEN CANCELLED.

PLEASE RELAY ANY REPORTS OF FLOODING INCLUDING MUDSLIDES...OR ROAD
CLOSURES TO THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING
TOLL FREE...1...8 6 6...2 1 5...4 3 2 4. DELAYED REPORTS ARE WELCOME.

LAT...LON 3719 7867 3703 7902 3703 7904 3723 7914
      3753 7884 3721 7868 3720 7868

$$

PC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 12:22 AM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	38 min
Jul 8, 12:38 AM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Botetourt	38 min
Jul 8, 12:56 AM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte, Halifax	64 min
Jul 8, 1:18 AM EDT	Severe Thunderstorm Warning	RNK	Amherst, Rockbridge, City of Buena Vista, City of Lexington	57 min
Jul 8, 1:43 AM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Buckingham	77 min
Jul 8, 1:58 AM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell	46 min
Jul 8, 2:15 AM EDT	Severe Thunderstorm Warning	RNK	Rockbridge, City of Buena Vista, City of Lexington	60 min
Jul 8, 2:30 AM EDT	Flash Flood Warning	RNK	Rockbridge, City of Buena Vista, City of Lexington	3 hr
Jul 8, 12:09 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax, Pittsylvania	66 min
Jul 8, 12:34 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	56 min
Jul 8, 1:21 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	21 min
Jul 8, 4:35 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, Pulaski, Wythe, City of Galax	55 min
Jul 8, 5:11 PM EDT	Severe Thunderstorm Warning	RNK	Giles, Montgomery, Pulaski, City of Radford	64 min
Jul 8, 5:24 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Franklin, Montgomery, Patrick, Pulaski	66 min
Jul 8, 6:08 PM EDT	Severe Thunderstorm Warning	RNK	Patrick	42 min
Jul 8, 6:24 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin, Pittsylvania, Roanoke, City of Roanoke	66 min
Jul 8, 6:52 PM EDT	Severe Thunderstorm Warning	RNK	Botetourt, Rockbridge, City of Buena Vista, City of Lexington	83 min
Jul 8, 6:53 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Patrick, Pittsylvania, City of Martinsville	67 min
Jul 8, 7:31 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, City of Lynchburg	63 min
Jul 8, 7:54 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	81 min

Nearby

Flash Flood Warnings in Virginia, 2008 Every flash flood warning in 2008

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.