Alert archive / Virginia / Flash Flood Warnings in 2011

Flash Flood Warning 22, NWS Blacksburg, VA

May 13, 2011Bland County, Tazewell County, Wythe County, Virginia; Mercer County, West Virginia

NWS Blacksburg, VA issued this flash flood warning at May 13, 2011, 6:19 PM EDT for Bland County, Tazewell County, Wythe County, Virginia; Mercer County, West Virginia. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 13, 2011, 6:19 PM EDT (22:19 UTC)
Expired
May 13, 2011, 8:51 PM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Flood severity
None

Counties Bland County, VA, Tazewell County, VA, Wythe County, VA, Mercer County, WV

The radar

The Roanoke radar (KFCX), 82 km from the middle of the area, began a volume at 22:21 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.

What was reported inside it

TimeReportWhereRemark
May 13, 6:29 PM EDTFLASH FLOOD4 Nw Bluefield, VAWATER RUNNING OVER MUD FORK ROAD
May 13, 6:29 PM EDTFLASH FLOOD6 Nnw Bluefield, WVWATER RUNNING OVER JIMMY LEWIS LAKE ROAD WITHIN THE PINNACLE ROCK STATE PARK

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 10.3 hours before the alert went out and 150 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 2011-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 234 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 2011-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
234 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
818 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
47 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.

342 
WGUS51 KRNK 132219
FFWRNK
VAC021-185-197-WVC055-140415-
/O.NEW.KRNK.FF.W.0022.110513T2219Z-110514T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
619 PM EDT FRI MAY 13 2011

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN TAZEWELL COUNTY IN SOUTHWEST VIRGINIA
  CENTRAL WYTHE COUNTY IN SOUTHWEST VIRGINIA
  BLAND COUNTY IN SOUTHWEST VIRGINIA
  WESTERN MERCER COUNTY IN SOUTHEAST WEST VIRGINIA

* UNTIL 1215 AM EDT.

* AT 616 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM
  POCAHONTAS TO BLAND TO CRIPPLE CREEK...OR ALONG A LINE EXTENDING
  FROM 6 MILES NORTHWEST OF BLUEFIELD TO BLAND TO SPEEDWELL...MOVING
  EAST AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CLEAR
  FORK...BRAMWELL...PINNACLE ROCK STATE PARK...HICKSVILLE...
  BLUEFIELD...MERCER COUNTY AIRPORT...MONTCALM...COLEMAN STORE...
  KIMBERLING...SANDLICK...ROCKY GAP...MATOAKA...IVANHOE...WENONAH...
  CERES...LONG SPUR...MAX MEADOWS...KEGLEY AND PRINCETON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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.

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF
CREEKS AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAIN
COULD ALSO CAUSE ROCK AND MUDSLIDES.

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 3728 8141 3739 8134 3752 8120 3726 8101
      3686 8085 3681 8102 3682 8103 3680 8106
      3685 8124 3703 8126 3727 8144

$$

JJ
2 follow-up statements
196 
WGUS71 KRNK 140022
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
822 PM EDT FRI MAY 13 2011

VAC021-185-197-WVC055-140415-
/O.CON.KRNK.FF.W.0022.000000T0000Z-110514T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TAZEWELL VA-WYTHE VA-BLAND VA-MERCER WV-
822 PM EDT FRI MAY 13 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT FOR 
WESTERN MERCER...CENTRAL WYTHE...NORTHEASTERN TAZEWELL...AND BLAND 
COUNTIES...

AT 816 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT HEAVY RAIN HAD MOVED OUT OF THE WARNED AREA. ANY HIGH WATER 
SHOULD BE RECEDING. THERE HAVE BEEN NO REPORTS OF FLOODING TO THE 
NATIONAL WEATHER SERVICE. BECAUSE OF THE HIGH RAINFALL RATES 
EARLIER...ROCK OR MUDSLIDES MAY HAVE OCCURRED. IF NO REPORTS OF 
FLOODING ARE RECEIVED...THE WARNING WILL LIKELY BE CANCELLED BY 1000 
PM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
FRIDAY EVENING FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN
VIRGINIA.

&&

LAT...LON 3728 8141 3739 8134 3752 8120 3726 8101
      3686 8085 3681 8102 3682 8103 3680 8106
      3685 8124 3703 8126 3727 8144

$$

JJ
449 
WGUS71 KRNK 140051
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
851 PM EDT FRI MAY 13 2011

VAC021-185-197-WVC055-140057-
/O.CAN.KRNK.FF.W.0022.000000T0000Z-110514T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TAZEWELL VA-WYTHE VA-BLAND VA-MERCER WV-
851 PM EDT FRI MAY 13 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WESTERN 
MERCER...CENTRAL WYTHE...NORTHEASTERN TAZEWELL...AND BLAND 
COUNTIES...
 
SOME MINOR ROAD FLOODING WAS REPORTED IN BLAND COUNTY EARLIER THIS 
EVENING...BUT THAT WATER HAS RECEDED. NOT OTHER REPORTS OF FLOODING 
WERE RECEIVED....THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

LAT...LON 3728 8141 3739 8134 3752 8120 3726 8101
      3686 8085 3681 8102 3682 8103 3680 8106
      3685 8124 3703 8126 3727 8144

$$

JJ

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 10:27 AM EDTSpecial Weather StatementRNKCampbell33 min
May 13, 11:00 AM EDTSpecial Weather StatementRNKCharlotte45 min
May 13, 2:07 PM EDTSevere Thunderstorm WarningRNKCarroll, Grayson, Wythe, City of Galax38 min
May 13, 2:39 PM EDTFlash Flood WarningRNKCarroll, Grayson, City of Galax6 hr
May 13, 2:40 PM EDTSevere Thunderstorm WarningRNKCarroll, Grayson, Wythe, City of Galax51 min
May 13, 2:49 PM EDTSevere Thunderstorm WarningRNKBotetourt, Craig, Roanoke56 min
May 13, 3:16 PM EDTFlash Flood WatchRNKAlleghany, Bland, Botetourt, Carroll, Craig, Floyd and 13 more6 hr
May 13, 3:28 PM EDTSevere Thunderstorm WarningRNKFloyd, Franklin, Montgomery, Patrick62 min
May 13, 3:45 PM EDTSevere Thunderstorm WarningRNKCarroll, Grayson, Patrick60 min
May 13, 4:15 PM EDTSevere Thunderstorm WarningRNKMontgomery, Roanoke, City of Roanoke, City of Salem40 min
May 13, 4:25 PM EDTSevere Thunderstorm WarningRNKSmyth, Tazewell65 min
May 13, 4:40 PM EDTSevere Thunderstorm WarningRNKPatrick50 min
May 13, 4:50 PM EDTSpecial Weather StatementRNKBath55 min
May 13, 4:52 PM EDTSpecial Weather StatementRNKGiles53 min
May 13, 5:10 PM EDTFlash Flood WarningRNKGiles4 hr
May 13, 5:16 PM EDTSevere Thunderstorm WarningRNKGrayson, Smyth, Wythe59 min
May 13, 5:30 PM EDTFlash Flood WarningRNKGrayson, Wythe6 hr
May 13, 5:46 PM EDTSevere Thunderstorm WarningRNKBath, Rockbridge59 min
May 12, 11:00 PM EDTSpecial Weather StatementRNKMercer45 min
May 13, 12:39 AM EDTSpecial Weather StatementRNKMercer51 min

Nearby

Flash Flood Warnings in Virginia, 2011Flash Flood Warnings in West Virginia, 2011Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.