Alert archive / Virginia / Flash Flood Warnings in 2020

Flash Flood Warning 13, NWS Blacksburg, VA

April 13, 20206 counties in Virginia; Stokes County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Apr 13, 2020, 6:02 AM EDT for 6 counties in Virginia; Stokes County, North Carolina. It was in force for 4 hr. 5 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 13, 2020, 6:02 AM EDT (10:02 UTC)
Expired
Apr 13, 2020, 10:00 AM EDT
In force
4 hr
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Flood severity
None

Counties Stokes County, NC, Bedford County, VA, City of Lynchburg, VA, City of Martinsville, VA, Franklin County, VA, Henry County, VA, Patrick County, VA

The radar

The Roanoke radar (KFCX), 53 km from the middle of the area, began a volume at 10:04 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 13, 6:25 AM EDTFLASH FLOOD3 Nnw Sydnorsville, VASEVERAL ROADS FLOODED IN FRANKLIN COUNTY AT 7:45 AM, ESPECIALLY IN THE SNOW CREEK AREA. GOOSE DAM ROAD WAS CLOSED DUE TO HIGH WATER.
Apr 13, 6:25 AM EDTFLASH FLOODSnow Creek, VASEVERAL ROADS CLOSED IN FRANKLIN COUNTY, MOST IN THE SNOW CREEK AREA INCLUDING GOOSE DAM ROAD.
Apr 13, 6:50 AM EDTFLASH FLOOD1 Sse Fieldale, VAA CAR HAD TO TOWED OUT OF FLOOD WATERS ON CARVER ROAD. SEVERAL ROADS IN HENRY COUNTY WERE ALSO FLOODED, ESPECIALLY IN THE BASSETT FORKS AREA. AS OF 940 AM, WATER WAS STILL STANDING ON THEE APPALACHIAN DRIVE ON-RAMP TO U.S. 220.
Apr 13, 9:23 AM EDTFLASH FLOOD2 Ese Lawsonville, NCHIGHWAY 8 NORTH CLOSED DUE TO HIGH WATER.
Apr 13, 9:31 AM EDTFLASH FLOOD2 Ese Lawsonville, NCROUTE 8 NORTH 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 00:00Z, 10.0 hours before the alert went out and 40 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 2020-04-13Temperature 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 2020-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 363 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
573 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
363 m²/s²
0-3 km storm-relative helicity
605 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

823 
WGUS51 KRNK 131002
FFWRNK
NCC169-VAC019-067-089-141-680-690-131400-
/O.NEW.KRNK.FF.W.0013.200413T1002Z-200413T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service BLACKSBURG VA
602 AM EDT Mon Apr 13 2020

The National Weather Service in BLACKSBURG has issued a

* Flash Flood Warning for...
  Stokes County in north central North Carolina...
  The City of Martinsville in south central Virginia...
  Southeastern Bedford County in south central Virginia...
  Henry County in south central Virginia...
  The City of Lynchburg in central Virginia...
  Southeastern Franklin County in west central Virginia...
  Southeastern Patrick County in southwestern Virginia...

* Until 1000 AM EDT.

* At 601 AM EDT, Doppler radar and automated gauges indicated
  thunderstorms producing heavy rain across the warned area. Up to 
  three inches of rain have already fallen in parts of the warned 
  area. Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flooding of small creeks and streams, urban areas, 
           highways, streets and underpasses as well as other 
           drainage and low lying areas.

* Some locations that will experience flooding include...
  Lynchburg...
  Martinsville...
  Rocky Mount...
  Walnut Cove...
  Stuart...
  Danbury...
  and Francisco.

Excessive rainfall over the warned area will cause mud slides near
steep terrain. The mud slide can consist of rock, mud, vegetation and
other loose materials.

This includes the following streams and drainages...
Brushy Fork Creek, Mulberry Creek, Ward Branch, Difficult Creek and
Little Goblintown Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

When it is safe to do so, please send your reports of flooding,
including mudslides or flooded roads, to the National Weather Service
by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports and
pictures can also be shared on the National Weather Service
Blacksburg Facebook page and on Twitter.

&&

LAT...LON 3626 8045 3656 8046 3749 7927 3740 7910
      3734 7918 3735 7926 3706 7944 3706 7949
      3701 7948 3705 7954 3704 7960 3654 7971
      3654 8003 3626 8004

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

RAB
1 follow-up statement
385 
WGUS71 KRNK 131358
FFSRNK

Flash Flood Statement
National Weather Service BLACKSBURG VA
958 AM EDT Mon Apr 13 2020

NCC169-VAC019-067-089-141-680-690-131406-
/O.EXP.KRNK.FF.W.0013.000000T0000Z-200413T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Stokes NC-City of Martinsville VA-Bedford VA-Henry VA-
City of Lynchburg VA-Franklin VA-Patrick VA-
958 AM EDT Mon Apr 13 2020

...THE FLASH FLOOD WARNING FOR STOKES...SOUTHEASTERN 
BEDFORD...HENRY...SOUTHEASTERN FRANKLIN AND SOUTHEASTERN PATRICK 
COUNTIES...THE CITY OF MARTINSVILLE AND THE CITY OF LYNCHBURG WILL 
EXPIRE AT 1000 AM EDT...

The heavy rain has ended and flood waters are receding. Flash 
flooding is no longer an imminent concern. Thus, the Flash Flood 
Warning for this region will be replaced with a Flood Warning. 
Please continue to heed any remaining road closures.

LAT...LON 3626 8045 3656 8046 3749 7927 3740 7910
      3734 7918 3735 7926 3706 7944 3706 7949
      3701 7948 3705 7954 3704 7960 3654 7971
      3654 8003 3626 8004

$$

RAB

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 11:50 PM EDTAreal Flood AdvisoryRNKCarroll, Floyd, Grayson, Patrick, City of Galax12 hr
Apr 12, 11:59 PM EDTSpecial Weather StatementRNKFloyd31 min
Apr 13, 12:18 AM EDTAreal Flood AdvisoryRNKGrayson12 hr
Apr 13, 12:24 AM EDTSpecial Weather StatementRNKPatrick36 min
Apr 13, 12:44 AM EDTAreal Flood AdvisoryRNKBland, Giles, Montgomery, Pulaski, Smyth, Tazewell and 2 more12 hr
Apr 13, 1:04 AM EDTSpecial Weather StatementRNKBedford, Franklin, Henry, City of Martinsville26 min
Apr 13, 1:32 AM EDTFlash Flood WarningRNKSmyth9 hr
Apr 13, 1:33 AM EDTSpecial Weather StatementRNKAmherst, Bedford, Henry, City of Lynchburg, City of Martinsville27 min
Apr 13, 1:39 AM EDTSpecial Weather StatementRNKMontgomery, Patrick, City of Radford36 min
Apr 13, 2:03 AM EDTSpecial Weather StatementRNKAmherst, City of Lynchburg27 min
Apr 13, 2:14 AM EDTAreal Flood AdvisoryRNKAmherst, Appomattox, Bedford, Botetourt, Craig, Franklin and 7 more12 hr
Apr 13, 2:33 AM EDTSpecial Weather StatementRNKCampbell27 min
Apr 13, 2:34 AM EDTSpecial Weather StatementRNKFloyd26 min
Apr 13, 2:42 AM EDTFlash Flood WarningRNKCarroll, Floyd, Franklin, Patrick6 hr
Apr 13, 2:48 AM EDTSevere Thunderstorm WarningRNKCarroll, Floyd, Patrick27 min
Apr 13, 3:02 AM EDTSpecial Weather StatementRNKBuckingham28 min
Apr 13, 3:47 AM EDTFlash Flood WarningRNKCarroll, Floyd, Grayson, Montgomery, Pulaski, Roanoke and 5 more6 hr
Apr 13, 4:00 AM EDTSpecial Weather StatementRNKPatrick15 min
Apr 13, 4:35 AM EDTSevere Thunderstorm WarningRNKBedford, Campbell, Franklin, Henry, Patrick, Pittsylvania and 1 more55 min
Apr 13, 5:01 AM EDTTornado WarningRNKFranklin, Henry, Pittsylvania, City of Martinsville29 min
Apr 13, 5:16 AM EDTFlash Flood WarningRNKTazewell3 hr
Apr 13, 5:19 AM EDTTornado WarningRNKHenry, Pittsylvania26 min
Apr 13, 5:25 AM EDTFlash Flood WarningRNKBedford, Botetourt, Floyd, Franklin, Rockbridge3 hr
Apr 13, 5:30 AM EDTSevere Thunderstorm WarningRNKAppomattox, Campbell, Charlotte, Halifax, Pittsylvania, City of Danville60 min
Apr 13, 5:36 AM EDTTornado WarningRNKPittsylvania, City of Danville24 min
Apr 13, 5:48 AM EDTSevere Thunderstorm WarningRNKBuckingham57 min
Apr 13, 5:56 AM EDTTornado WarningRNKCharlotte, Halifax, Pittsylvania34 min
Apr 13, 6:21 AM EDTFlash Flood WarningRNKAmherst, Rockbridge, City of Buena Vista, City of Lexington4 hr
Apr 13, 6:25 AM EDTSevere Thunderstorm WarningRNKCharlotte, Halifax50 min
Apr 13, 7:01 AM EDTRiver Flood WarningRNKTazewell12 hr
Apr 13, 8:35 AM EDTAreal Flood WarningRNKBedford, Botetourt, Franklin12 hr
Apr 13, 8:47 AM EDTAreal Flood WarningRNKCarroll, Floyd, Patrick6 hr
Apr 13, 9:02 AM EDTAreal Flood WarningRNKGiles15 hr
Apr 13, 9:30 AM EDTRiver Flood WarningRNKRoanoke, City of Roanoke, City of Salem35 hr
Apr 13, 9:30 AM EDTRiver Flood WarningRNKPittsylvania24 hr
Apr 13, 9:46 AM EDTRiver Flood WarningRNKSmyth18 hr
Apr 13, 9:55 AM EDTAreal Flood WarningRNKMontgomery, Pulaski, Roanoke, Wythe, City of Radford6 hr
Apr 13, 10:12 AM EDTAreal Flood WarningRNKRockbridge, City of Buena Vista, City of Lexington5 hr
Apr 13, 10:37 AM EDTAreal Flood WarningRNKSmyth5 hr
Apr 13, 11:15 AM EDTSpecial Weather StatementRNKAmherst, Bedford, Campbell, City of Buena Vista, City of Lexington, City of Lynchburg30 min
Apr 13, 11:40 AM EDTRiver Flood WarningRNKCarroll, Grayson, City of Galax9 hr
Apr 13, 11:40 AM EDTRiver Flood WarningRNKPulaski, Wythe39 hr
Apr 13, 11:40 AM EDTRiver Flood WarningRNKMontgomery, Pulaski, City of Radford43 hr
Apr 12, 10:47 PM EDTSevere Thunderstorm WarningRNKWilkes, Yadkin28 min
Apr 12, 11:17 PM EDTSpecial Weather StatementRNKWilkes13 min
Apr 12, 11:37 PM EDTSpecial Weather StatementRNKSurry8 min
Apr 13, 12:29 AM EDTSevere Thunderstorm WarningRNKAlleghany, Ashe, Watauga, Wilkes31 min
Apr 13, 1:11 AM EDTSpecial Weather StatementRNKAlleghany19 min
Apr 13, 2:18 AM EDTSpecial Weather StatementRNKAshe27 min
Apr 13, 2:24 AM EDTFlash Flood WarningRNKAlleghany, Ashe, Watauga6 hr
Apr 13, 2:25 AM EDTSpecial Weather StatementRNKSurry35 min
Apr 13, 3:23 AM EDTSpecial Weather StatementRNKSurry37 min
Apr 13, 3:45 AM EDTFlash Flood Warning EmergencyCatastrophic damage threatRNKWatauga6 hr
Apr 13, 4:06 AM EDTSevere Thunderstorm WarningRNKSurry, Wilkes, Yadkin24 min
Apr 13, 4:12 AM EDTTornado WarningRNKSurry, Yadkin33 min
Apr 13, 5:58 AM EDTTornado WarningRNKCaswell47 min
Apr 13, 8:31 AM EDTAreal Flood WarningRNKAshe6 hr
Apr 13, 9:33 AM EDTAreal Flood WarningRNKWatauga6 hr

Nearby

Flash Flood Warnings in Virginia, 2020Flash Flood Warnings in North Carolina, 2020Every flash flood warning in 2020

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.