Alert archive / West Virginia / Flash Flood Warnings in 2012

Flash Flood Warning 14, NWS Blacksburg, VA

April 26, 2012Greenbrier County, Summers County, West Virginia

NWS Blacksburg, VA issued this flash flood warning at Apr 26, 2012, 6:51 PM EDT for Greenbrier County, Summers County, West Virginia. It was in force for 6 hr. 3 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
Apr 26, 2012, 6:51 PM EDT (22:51 UTC)
Expired
Apr 27, 2012, 12:45 AM EDT
In force
6 hr
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Flood severity
None

Counties Greenbrier County, WV, Summers County, WV

The radar

The Charleston,WV radar (KRLX), 104 km from the middle of the area, began a volume at 22:53 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.

What was reported inside it

TimeReportWhereRemark
Apr 26, 6:53 PM EDTFLASH FLOODRainelle, WVNUMEROUS ROADS CLOSED
Apr 26, 7:15 PM EDTFLASH FLOOD3 Ese Lewisburg, WVROUTE 63 NEAR CALDWELL CLOSED DUE TO HIGH WATER.
Apr 26, 7:15 PM EDTFLASH FLOOD6 Nnw Lewisburg, WVROUTE 60 NEAR MILLER MOUNTAIN CLOSED DUE TO HIGH WATER

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, 10.9 hours before the alert went out and 131 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 2012-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -140 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-140 m²/s²
0-3 km storm-relative helicity
-105 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.

668 
WGUS51 KRNK 262251
FFWRNK
WVC025-089-270445-
/O.NEW.KRNK.FF.W.0014.120426T2251Z-120427T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
651 PM EDT THU APR 26 2012

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREENBRIER COUNTY IN SOUTHEAST WEST VIRGINIA
  NORTHEASTERN SUMMERS COUNTY IN SOUTHEAST WEST VIRGINIA

* UNTIL 1245 AM EDT.

* AT 647 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  VERY HEAVY RAIN FROM THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO QUINWOOD...
  LEONARD...DUO AND RAINELLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 3 INCHES ARE POSSIBLE IN THE WARNED 
AREA.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

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 3813 8035 3805 8026 3805 8014 3801 8002
      3778 8023 3772 8044 3773 8077 3783 8092
      3788 8076 3794 8081 3798 8078 3801 8079
      3803 8083 3806 8082 3805 8086 3807 8089
      3810 8089 3809 8071 3820 8054

$$

AMS
2 follow-up statements
546 
WGUS71 KRNK 270206
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1006 PM EDT THU APR 26 2012

WVC025-089-270445-
/O.CON.KRNK.FF.W.0014.000000T0000Z-120427T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENBRIER WV-SUMMERS WV-
1006 PM EDT THU APR 26 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
GREENBRIER AND NORTHEASTERN SUMMERS COUNTIES...

AT 956 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
THUNDERSTORMS PRODUCING VERY HEAVY RAIN HAVE MOVED OUT OF THE WARNED 
AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BEARTOWN
STATE PARK...TROUT...RORER...QUINWOOD...LEONARD...FALLING 
SPRING...DUO...BINGHAM AND ANJEAN.

WEST VIRGINIA DEPARTMENT OF TRANSPORTATION REPORTED ROUTE 60 NEAR 
MILLER MOUNTAIN...ROUTE 63 NEAR CALDWELL...AND TUCKAHOE ROAD NEAR 
THE ALLEGHANY TUNNEL WAS CLOSED DUE TO HIGH WATER EARLIER THIS 
EVENING. HOWEVER...THE RAIN HAS ENDED AND THE WATER WAS QUICKLY 
RECEDING. 

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3813 8035 3805 8026 3805 8014 3801 8002
      3778 8023 3772 8044 3773 8077 3783 8092
      3788 8076 3794 8081 3798 8078 3801 8079
      3803 8083 3806 8082 3805 8086 3807 8089
      3810 8089 3809 8071 3820 8054

$$

AMS
857 
WGUS71 KRNK 270446
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1246 AM EDT FRI APR 27 2012

WVC025-089-270456-
/O.EXP.KRNK.FF.W.0014.000000T0000Z-120427T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENBRIER WV-SUMMERS WV-
1246 AM EDT FRI APR 27 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR GREENBRIER AND
NORTHEASTERN SUMMERS COUNTIES...

CREEKS AND STREAMS WERE RECEDING THUS THE FLASH FLOOD WARNING WILL BE
ALLOWED TO EXPIRE.

LAT...LON 3813 8035 3805 8026 3805 8014 3801 8002
      3778 8023 3772 8044 3773 8077 3783 8092
      3788 8076 3794 8081 3798 8078 3801 8079
      3803 8083 3806 8082 3805 8086 3807 8089
      3810 8089 3809 8071 3820 8054

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 2:39 AM EDTSpecial Weather StatementRNKGreenbrier36 min
Apr 26, 3:55 AM EDTSpecial Weather StatementRNKGreenbrier, Summers35 min
Apr 26, 4:31 AM EDTSpecial Weather StatementRNKMercer, Monroe29 min
Apr 26, 11:54 AM EDTAreal Flood AdvisoryRNKGreenbrier, Mercer, Summers3 hr
Apr 26, 2:53 PM EDTAreal Flood AdvisoryRNKGreenbrier, Mercer, Summers3 hr
Apr 26, 6:16 PM EDTSevere Thunderstorm WarningRNKMercer59 min
Apr 26, 6:25 PM EDTSpecial Weather StatementRNKGreenbrier65 min
Apr 26, 6:34 PM EDTFlash Flood WarningRNKMercer, Summers6 hr
Apr 26, 7:00 PM EDTFlash Flood WarningRNKMercer6 hr
Apr 26, 7:10 PM EDTSevere Thunderstorm WarningRNKMercer65 min
Apr 26, 7:26 PM EDTSpecial Weather StatementRNKMonroe64 min
Apr 26, 7:53 PM EDTSevere Thunderstorm WarningRNKMonroe52 min

Nearby

Flash Flood Warnings in West Virginia, 2012Every flash flood warning in 2012

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.