Alert archive / Virginia / Flash Flood Warnings in 2023

Flash Flood Warning 13, NWS Blacksburg, VA

July 15, 2023Appomattox County, Buckingham County, Charlotte County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jul 15, 2023, 10:43 PM EDT for Appomattox County, Buckingham County, Charlotte County, Virginia. It was in force for 6 hr. 1 report 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: Jul 15, 2023, 10:43 PM EDT (02:43 UTC)
Expired: Jul 16, 2023, 4:24 AM EDT
In force: 6 hr
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: None

Counties Appomattox County, VA, Buckingham County, VA, Charlotte County, VA

The radar

The Roanoke radar (KFCX), 153 km from the middle of the area, began a volume at 02:45 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

Time	Report	Where	Remark
Jul 16, 12:55 AM EDT	FLASH FLOOD	1 E Concord, VA	Stage Road flooded between Stonewall Road and Richmond Highway.

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, 2.7 hours before the alert went out and 83 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: 354 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 734 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

294 
WGUS51 KRNK 160243
FFWRNK
VAC011-029-037-160845-
/O.NEW.KRNK.FF.W.0013.230716T0243Z-230716T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Blacksburg VA
1043 PM EDT Sat Jul 15 2023

The National Weather Service in Blacksburg has issued a

* Flash Flood Warning for...
  Appomattox County in central Virginia...
  Buckingham County in central Virginia...
  Northern Charlotte County in south central Virginia...

* Until 445 AM EDT Sunday.

* At 1043 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. The expected rainfall rate is 3 inches in 1 hour. 
  Additional rainfall amounts of 1 to 3 inches are possible in the 
  warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Buckingham...                      Appomattox...
  Dillwyn...                         Bent Creek...
  Pamplin City...                    Toga...
  Andersonville...

This includes the following streams and drainages...
  Bear Branch, Abbott Branch, Beasley Creek, Bear Garden Creek, Bear 
  Creek, Beaverpond Branch, Appomattox River and Alabama Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3763 7882 3764 7872 3770 7869 3768 7864
      3776 7861 3776 7850 3780 7849 3774 7842
      3769 7824 3734 7846 3735 7855 3740 7859
      3735 7859 3720 7869 3724 7890 3738 7898
      3741 7891 3753 7890 3754 7882

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...3 INCHES IN 1 HOUR

$$

AMS

2 follow-up statements

807 
WGUS71 KRNK 160355
FFSRNK

Flash Flood Statement
National Weather Service Blacksburg VA
1155 PM EDT Sat Jul 15 2023

VAC011-029-037-160845-
/O.CON.KRNK.FF.W.0013.000000T0000Z-230716T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Appomattox VA-Buckingham VA-Charlotte VA-
1155 PM EDT Sat Jul 15 2023

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 AM EDT SUNDAY FOR 
APPOMATTOX, BUCKINGHAM AND NORTHERN CHARLOTTE COUNTIES...

At 1155 PM EDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 1 and 3 inches of rain 
have fallen. Additional rainfall amounts up to 2.5 inches are 
possible in the warned area. Flash flooding is ongoing or expected 
to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Buckingham...                      Appomattox...
Dillwyn...                         Bent Creek...
Pamplin City...                    Toga...
Andersonville...

This includes the following streams and drainages...
  Abbott Branch, Bear Garden Creek, Alabama Creek, Bear Branch, 
  Beaverpond Branch, Beasley Creek, Bear Creek and Appomattox River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

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 3763 7882 3764 7872 3770 7869 3768 7864
      3776 7861 3776 7850 3780 7849 3774 7842
      3769 7824 3734 7846 3735 7855 3740 7859
      3735 7859 3720 7869 3724 7890 3738 7898
      3741 7891 3753 7890 3754 7882

FLASH FLOOD...RADAR INDICATED

$$

VFJ

322 
WGUS71 KRNK 160824
FFSRNK

Flash Flood Statement
National Weather Service Blacksburg VA
424 AM EDT Sun Jul 16 2023

VAC011-029-037-160834-
/O.CAN.KRNK.FF.W.0013.000000T0000Z-230716T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Appomattox VA-Buckingham VA-Charlotte VA-
424 AM EDT Sun Jul 16 2023

...FLASH FLOOD WARNING IS CANCELLED FOR APPOMATTOX, BUCKINGHAM AND 
NORTHERN CHARLOTTE COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3763 7882 3764 7872 3770 7869 3768 7864
      3776 7861 3776 7850 3780 7849 3774 7842
      3769 7824 3734 7846 3735 7855 3740 7859
      3735 7859 3720 7869 3724 7890 3738 7898
      3741 7891 3753 7890 3754 7882

$$

VFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 8:06 PM EDT	Special Weather Statement	RNK	City of Buena Vista	24 min
Jul 15, 8:11 PM EDT	Areal Flood Advisory	RNK	Bedford, Botetourt, Rockbridge, City of Lexington	113 min
Jul 15, 8:59 PM EDT	Special Weather Statement	RNK	Amherst	16 min
Jul 15, 9:14 PM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Campbell, Rockbridge, City of Lynchburg	50 min
Jul 15, 9:39 PM EDT	Special Weather Statement	RNK	Franklin	21 min
Jul 15, 9:56 PM EDT	Flash Flood Warning	RNK	Amherst, Appomattox, Bedford, Botetourt, Campbell, Rockbridge and 2 more	6 hr
Jul 15, 10:03 PM EDT	Special Weather Statement	RNK	Franklin	27 min
Jul 15, 10:12 PM EDT	Areal Flood Advisory	RNK	Bedford, Campbell, Floyd, Franklin, Henry, Patrick and 4 more	74 min
Jul 15, 10:29 PM EDT	Special Weather Statement	RNK	Pittsylvania	16 min
Jul 15, 10:31 PM EDT	Flash Flood Warning	RNK	Carroll, Floyd, Patrick	3 hr
Jul 15, 11:07 PM EDT	Flash Flood Warning	RNK	Appomattox, Campbell, Pittsylvania	5 hr
Jul 15, 11:18 PM EDT	Flash Flood Warning Considerable damage threat	RNK	Amherst, Appomattox, Bedford, Campbell, City of Lynchburg	5 hr
Jul 16, 12:30 AM EDT	Flash Flood Watch	RNK	Amherst, Campbell, City of Lynchburg	7 hr
Jul 16, 4:22 AM EDT	Areal Flood Warning	RNK	Amherst, Appomattox, Bedford, Campbell, City of Lynchburg	3 hr
Jul 16, 2:09 PM EDT	Areal Flood Warning	RNK	Campbell	9 hr
Jul 16, 3:47 PM EDT	Areal Flood Warning	RNK	Buckingham	10 hr

Nearby

Flash Flood Warnings in Virginia, 2023 Every flash flood warning in 2023

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.