Alert archive / Virginia / Flash Flood Watches in 2019
Flash Flood Watch 7, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood watch at Jul 11, 2019, 12:15 PM EDT for 23 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina; 4 counties in West Virginia. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jul 11, 2019, 12:15 PM EDT (16:15 UTC)
- Expired
- Jul 11, 2019, 6:32 PM EDT
- In force
- 6 hr
- Issued by
- NWS Blacksburg, VA
- Flood severity
- None
All 30 counties
Alleghany County, NC, Ashe County, NC, Watauga County, NC, Alleghany County, VA, Bath County, VA, Bland County, VA, Botetourt County, VA, Carroll County, VA, City of Buena Vista, VA, City of Covington, VA, City of Galax, VA, City of Lexington, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Giles County, VA, Grayson County, VA, Montgomery County, VA, Pulaski County, VA, Roanoke County, VA, Rockbridge County, VA, Smyth County, VA, Tazewell County, VA, Wythe County, VA, Greenbrier County, WV, Mercer County, WV, Monroe County, WV, Summers County, WV
The radar
The Roanoke radar (KFCX), 34 km from the middle of the area, began a volume at 16:18 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
Roanoke, VA (KRNK), launched 12:00Z, 4.3 hours before the alert went out and 92 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.
- Mixed-layer CAPE
- 513 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 926 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Blacksburg, VA wrote its last area forecast discussion before this flash flood watch went out at Jul 11, 10:01 AM EDT, 2 hours 14 minutes earlier.
Area forecast discussion, Jul 11, 10:01 AM EDT, 2 hours 14 minutes before
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</html>Hazardous weather outlook, Jul 11, 8:16 AM EDT, 3 hours 59 minutes before
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Special weather statement, Jul 11, 12:13 PM EDT, 2 minutes before
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</html>The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 9:38 PM EDT | Areal Flood Advisory | RNK | Alleghany, Botetourt, Craig, City of Covington | 5 hr |
| Jul 11, 12:13 PM EDT | Special Weather Statement | RNK | Grayson | 3 hr |
| Jul 11, 12:53 PM EDT | Special Weather Statement | RNK | City of Roanoke | 37 min |
| Jul 11, 1:34 PM EDT | Special Weather Statement | RNK | Carroll, City of Galax | 41 min |
| Jul 11, 2:13 PM EDT | Special Weather Statement | RNK | Carroll, Floyd | 47 min |
| Jul 11, 2:42 PM EDT | Special Weather Statement | RNK | Alleghany, Bath, City of Covington | 48 min |
| Jul 11, 2:58 PM EDT | Special Weather Statement | RNK | Franklin | 47 min |
| Jul 11, 3:01 PM EDT | Flash Flood Warning | RNK | Alleghany, Bath, City of Covington | 4 hr |
| Jul 11, 3:27 PM EDT | Special Weather Statement | RNK | Botetourt, Craig, Rockbridge, City of Buena Vista, City of Lexington | 48 min |
| Jul 11, 3:57 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Botetourt, Rockbridge | 48 min |
| Jul 11, 4:01 PM EDT | Areal Flood Advisory | RNK | Alleghany, Botetourt, Rockbridge, City of Buena Vista, City of Lexington | 3 hr |
| Jul 11, 4:03 PM EDT | Special Weather Statement | RNK | Pittsylvania, City of Danville | 42 min |
| Jul 11, 4:13 PM EDT | Special Weather Statement | RNK | Amherst, Rockbridge, City of Buena Vista, City of Lexington | 47 min |
| Jul 11, 4:27 PM EDT | Severe Thunderstorm Warning | RNK | Amherst, Bedford, Botetourt, Rockbridge, City of Buena Vista | 33 min |
| Jul 11, 4:51 PM EDT | Special Weather Statement | RNK | Appomattox | 24 min |
| Jul 11, 4:57 PM EDT | Special Weather Statement | RNK | Amherst | 48 min |
| Jul 11, 5:13 PM EDT | Special Weather Statement | RNK | Buckingham | 47 min |
| Jul 11, 5:23 PM EDT | Special Weather Statement | RNK | Charlotte | 37 min |
| Jul 11, 5:31 PM EDT | Special Weather Statement | RNK | Appomattox, Campbell | 44 min |
| Jul 11, 5:36 PM EDT | Severe Thunderstorm Warning | RNK | Appomattox, Campbell, Charlotte | 41 min |
| Jul 11, 5:51 PM EDT | Special Weather Statement | RNK | Pittsylvania, City of Danville | 39 min |
| Jul 11, 5:52 PM EDT | Areal Flood Advisory | RNK | Amherst, Appomattox, Buckingham, Campbell, Charlotte, City of Lynchburg | 111 min |
| Jul 11, 3:01 PM EDT | Special Weather Statement | RNK | Surry, Yadkin | 44 min |
| Jul 11, 3:41 PM EDT | Special Weather Statement | RNK | Yadkin | 49 min |
| Jul 11, 4:31 PM EDT | Special Weather Statement | RNK | Stokes | 44 min |
| Jul 11, 5:19 PM EDT | Special Weather Statement | RNK | Rockingham | 41 min |
| Jul 11, 1:56 PM EDT | Special Weather Statement | RNK | Greenbrier | 64 min |
Nearby
Flash Flood Watches in Virginia, 2019Flash Flood Watches in West Virginia, 2019Flash Flood Watches in North Carolina, 2019Every flash flood watch in 2019
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.