Alert archive / Virginia / Flash Flood Warnings in 2010

Flash Flood Warning 13, NWS Blacksburg, VA

January 25, 2010Appomattox County, Buckingham County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jan 25, 2010, 1:45 AM EST for Appomattox County, Buckingham County, Virginia. It was in force for 4 hr. 4 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
Jan 25, 2010, 1:45 AM EST (06:45 UTC)
Expired
Jan 25, 2010, 6:11 AM EST
In force
4 hr
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Flood severity
None

Counties Appomattox County, VA, Buckingham County, VA

The radar

The Roanoke radar (KFCX), 155 km from the middle of the area, began a volume at 06:48 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
Jan 25, 4:00 AM ESTFLASH FLOOD1 E Concord, VAWATER FLOWING OVER HIGHWAY 460.
Jan 25, 4:00 AM ESTFLASH FLOOD2 E Concord, VAMUDSLIDE NEAR CONCORD.
Jan 25, 5:33 AM ESTFLASH FLOOD4 Ne Concord, VASTATE ROUTE 667 WASHED OUT FROM FLOOD WATERS.
Jan 25, 5:33 AM ESTFLASH FLOOD4 Wsw Bent Creek, VAFLOODING ALONG STATE ROUT 605.

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 00:00Z, 6.8 hours before the alert went out and 84 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 00:00Z on 2010-01-25Temperature 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 00:00Z on 2010-01-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 920 square meters per square second.1939587897Sfc1 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
439 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
920 m²/s²
0-3 km storm-relative helicity
1028 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.

789 
WGUS51 KRNK 250645
FFWRNK
VAC011-029-251245-
/O.NEW.KRNK.FF.W.0013.100125T0645Z-100125T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
145 AM EST MON JAN 25 2010

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  APPOMATTOX COUNTY IN CENTRAL VIRGINIA
  BUCKINGHAM COUNTY IN CENTRAL VIRGINIA

* UNTIL 745 AM EST.

* AT 140 AM EST...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...WINGINA...TOGA...SHEPPARDS...NEW CANTON...
  GOLD HILL...DILLWYN...CENTENARY...BUCKINGHAM...ANDERSONVILLE...
  TOWER HILL...STONEWALL...SPOUT SPRING...OAKVILLE...HIXBURG...BENT
  CREEK AND APPOMATTOX.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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.

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 3763 7825 3734 7847 3733 7852 3737 7858
      3726 7867 3720 7880 3725 7890 3743 7902
      3753 7890 3755 7884 3765 7882 3764 7874
      3770 7871 3770 7867 3776 7863 3775 7842
      3769 7824

$$
2 follow-up statements
717 
WGUS71 KRNK 250839
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
339 AM EST MON JAN 25 2010

VAC011-029-251245-
/O.CON.KRNK.FF.W.0013.000000T0000Z-100125T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPOMATTOX VA-BUCKINGHAM VA-
339 AM EST MON JAN 25 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM EST FOR
BUCKINGHAM AND APPOMATTOX COUNTIES...

AT 335 AM EST...HEAVY RAIN WAS TAPERING OFF ACROSS THE WARNED        
AREA. ALTHOUGH THE THREAT FOR FLASH FLOODING HAS                     
DIMINISHED...ADDITIONAL WATER LEVEL RISES ARE LIKELY DURING THE      
NEXT FEW HOURS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINGINA...NEW
CANTON...GOLD HILL...DILLWYN...CENTENARY...BUCKINGHAM AND BENT CREEK

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.

&&

LAT...LON 3763 7825 3734 7847 3733 7852 3737 7858
      3726 7867 3720 7880 3725 7890 3743 7902
      3753 7890 3755 7884 3765 7882 3764 7874
      3770 7871 3770 7867 3776 7863 3775 7842
      3769 7824

$$

RCS
623 
WGUS71 KRNK 251111
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
611 AM EST MON JAN 25 2010

VAC011-029-251121-
/O.CAN.KRNK.FF.W.0013.000000T0000Z-100125T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPOMATTOX VA-BUCKINGHAM VA-
611 AM EST MON JAN 25 2010

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR BUCKINGHAM AND
APPOMATTOX COUNTIES...

HEAVY RAIN WAS TAPERING OFF ACROSS THE WARNED AREA. ALTHOUGH THE 
THREAT FOR FLASH FLOODING HAS DIMINISHED...ADDITIONAL WATER LEVEL 
RISES ARE LIKELY DURING THE NEXT FEW HOURS. A FLOOD WARNING IS NOW 
IN EFFECT UNTIL NOON EST.

LAT...LON 3763 7825 3734 7847 3733 7852 3737 7858
      3726 7867 3720 7880 3725 7890 3743 7902
      3753 7890 3755 7884 3765 7882 3764 7874
      3770 7871 3770 7867 3776 7863 3775 7842
      3769 7824

$$

RCS

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 7:57 PM ESTFlash Flood WarningRNKTazewell6 hr
Jan 24, 8:06 PM ESTFlash Flood WarningRNKCarroll, Grayson, City of Galax6 hr
Jan 24, 9:10 PM ESTFlash Flood WarningRNKPatrick6 hr
Jan 24, 10:26 PM ESTFlash Flood WarningRNKFranklin, Henry, City of Martinsville6 hr
Jan 24, 10:35 PM ESTFlash Flood WarningRNKAlleghany, Bath, City of Covington6 hr
Jan 24, 10:53 PM ESTFlash Flood WarningRNKBotetourt, Roanoke, Rockbridge, City of Buena Vista, City of Lexington, City of Roanoke and 1 more6 hr
Jan 24, 11:09 PM ESTFlash Flood WarningRNKAmherst, Bedford, City of Lynchburg, City of Roanoke6 hr
Jan 25, 12:14 AM ESTFlash Flood WarningRNKCampbell, Pittsylvania, City of Danville6 hr
Jan 25, 1:50 AM ESTAreal Flood WarningRNKCarroll, Grayson, City of Galax6 hr
Jan 25, 2:54 AM ESTAreal Flood WarningRNKPatrick6 hr
Jan 25, 4:22 AM ESTAreal Flood WarningRNKCraig, Giles, Montgomery6 hr
Jan 25, 4:27 AM ESTAreal Flood WarningRNKFranklin, Henry, City of Martinsville6 hr
Jan 25, 4:28 AM ESTAreal Flood WarningRNKAlleghany, Bath, City of Covington6 hr
Jan 25, 4:33 AM ESTAreal Flood WarningRNKBedford, Botetourt, Craig, Roanoke, Rockbridge, City of Buena Vista and 3 more6 hr
Jan 25, 5:13 AM ESTAreal Flood WarningRNKAmherst, Bedford, City of Lynchburg6 hr
Jan 25, 5:48 AM ESTRiver Flood WarningRNKCampbell, Pittsylvania28 hr
Jan 25, 5:48 AM ESTRiver Flood WarningRNKCampbell, Charlotte, Halifax35 hr
Jan 25, 6:07 AM ESTAreal Flood WarningRNKCampbell, Pittsylvania, City of Danville6 hr
Jan 25, 6:10 AM ESTAreal Flood WarningRNKAppomattox, Buckingham6 hr
Jan 25, 7:42 AM ESTAreal Flood WarningRNKCarroll, Grayson, City of Galax6 hr
Jan 25, 7:53 AM ESTAreal Flood WarningRNKTazewell6 hr
Jan 25, 8:43 AM ESTAreal Flood WarningRNKPulaski, Wythe6 hr
Jan 25, 10:00 AM ESTAreal Flood WarningRNKCraig, Giles, Montgomery4 hr
Jan 25, 10:32 AM ESTAreal Flood WarningRNKAlleghany, Bath, City of Covington16 hr
Jan 25, 10:39 AM ESTAreal Flood WarningRNKBotetourt, Roanoke, Rockbridge, City of Buena Vista, City of Lexington, City of Roanoke and 1 more4 hr
Jan 25, 11:18 AM ESTAreal Flood WarningRNKAmherst, Bedford, City of Lynchburg4 hr
Jan 25, 12:00 PM ESTAreal Flood WarningRNKCampbell, Pittsylvania20 hr
Jan 25, 12:14 PM ESTAreal Flood WarningRNKAppomattox3 hr
Jan 25, 2:25 PM ESTAreal Flood WarningRNKAlleghany, Bedford, Botetourt, Montgomery, Roanoke, Rockbridge and 4 more24 hr
Jan 25, 4:56 PM ESTWind AdvisoryRNKCarroll, Grayson, Pulaski, Smyth, Tazewell, Wythe and 2 more11 hr

Nearby

Flash Flood Warnings in Virginia, 2010Every flash flood warning in 2010

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.