Alert archive / Virginia / Flash Flood Warnings in 2018

Flash Flood Warning 41, NWS Blacksburg, VA

June 9, 2018Carroll County, Floyd County, Patrick County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jun 9, 2018, 3:03 PM EDT for Carroll County, Floyd County, Patrick County, Virginia. It was in force for 98 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 9, 2018, 3:03 PM EDT (19:03 UTC)
Expired: Jun 9, 2018, 4:41 PM EDT
In force: 98 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: None

Counties Carroll County, VA, Floyd County, VA, Patrick County, VA

The radar

The Roanoke radar (KFCX), 36 km from the middle of the area, began a volume at 19:04 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.1 hours before the alert went out and 106 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: 248 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1052 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: -42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

465 
WGUS51 KRNK 091903
FFWRNK
VAC035-063-141-092200-
/O.NEW.KRNK.FF.W.0041.180609T1903Z-180609T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service BLACKSBURG VA
303 PM EDT SAT JUN 9 2018

The National Weather Service in BLACKSBURG has issued a

* Flash Flood Warning for...
  Southwestern Floyd County in southwestern Virginia...
  Northeastern Carroll County in southwestern Virginia...
  Central Patrick County in southwestern Virginia...

* Until 600 PM EDT

* At 303 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Hillsville...
  Woolwine...
  Willis...
  Dugspur...
  and Laurel Fork.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3676 8075 3689 8072 3690 8069 3690 8068
      3691 8067 3691 8066 3693 8064 3683 8026
      3662 8032

$$

JR

1 follow-up statement

736 
WGUS71 KRNK 092041
FFSRNK

Flash Flood Statement
National Weather Service BLACKSBURG VA
441 PM EDT SAT JUN 9 2018

VAC035-063-141-092051-
/O.CAN.KRNK.FF.W.0041.000000T0000Z-180609T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Floyd VA-Carroll VA-Patrick VA-
441 PM EDT SAT JUN 9 2018

...THE FLASH FLOOD WARNING FOR 
SOUTHWESTERN FLOYD...NORTHEASTERN CARROLL AND CENTRAL PATRICK
COUNTIES IS CANCELLED...

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

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 3676 8075 3689 8072 3690 8069 3690 8068
      3691 8067 3691 8066 3693 8064 3683 8026
      3662 8032

$$

JR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 8:06 PM EDT	Areal Flood Warning	RNK	Botetourt, Rockbridge	3 hr
Jun 8, 8:56 PM EDT	Special Weather Statement	RNK	Alleghany, City of Covington	64 min
Jun 8, 9:19 PM EDT	Special Weather Statement	RNK	Bland	56 min
Jun 8, 10:09 PM EDT	Special Weather Statement	RNK	Giles	66 min
Jun 9, 2:57 AM EDT	Areal Flood Advisory	RNK	Bedford	4 hr
Jun 9, 1:49 PM EDT	Special Weather Statement	RNK	Carroll, City of Galax	41 min
Jun 9, 2:14 PM EDT	Special Weather Statement	RNK	Patrick	31 min
Jun 9, 2:30 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Patrick, Pulaski, Wythe	2 hr
Jun 9, 2:34 PM EDT	Special Weather Statement	RNK	Bath	56 min
Jun 9, 2:37 PM EDT	Special Weather Statement	RNK	Floyd	53 min
Jun 9, 2:54 PM EDT	Special Weather Statement	RNK	Tazewell	66 min
Jun 9, 3:15 PM EDT	Special Weather Statement	RNK	Henry, Patrick, City of Martinsville	60 min
Jun 9, 3:26 PM EDT	Special Weather Statement	RNK	Buckingham	64 min
Jun 9, 3:27 PM EDT	Areal Flood Advisory	RNK	Alleghany, Bath	81 min
Jun 9, 4:29 PM EDT	Special Weather Statement	RNK	Smyth	61 min
Jun 9, 4:50 PM EDT	Special Weather Statement	RNK	Amherst	55 min
Jun 9, 4:58 PM EDT	Severe Thunderstorm Warning	RNK	Amherst	62 min
Jun 9, 5:15 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Craig, Roanoke, City of Roanoke	60 min
Jun 9, 5:17 PM EDT	Areal Flood Advisory	RNK	Amherst	118 min
Jun 9, 5:26 PM EDT	Special Weather Statement	RNK	Buckingham	64 min
Jun 9, 5:41 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Buckingham	64 min
Jun 9, 5:55 PM EDT	Special Weather Statement	RNK	Bedford, Botetourt	65 min
Jun 9, 6:12 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Campbell, City of Lynchburg	63 min
Jun 9, 6:34 PM EDT	Flash Flood Warning	RNK	Amherst, Appomattox, Campbell, City of Lynchburg	3 hr

Nearby

Flash Flood Warnings in Virginia, 2018 Every flash flood warning in 2018

Sources

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