Alert archive / Virginia / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 141, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 3, 2020, 3:32 AM EDT for Carroll County, Patrick County, Virginia; Surry County, North Carolina. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 3, 2020, 3:32 AM EDT (07:32 UTC)
- Expired
- Aug 3, 2020, 4:15 AM EDT
- In force
- 43 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Surry County, NC, Carroll County, VA, Patrick County, VA
The radar
The Roanoke radar (KFCX), 53 km from the middle of the area, began a volume at 07:34 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 00:00Z, 7.5 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.
- Mixed-layer CAPE
- 971 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1470 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 4.9
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 3, 2:12 AM EDT, 1 hour 20 minutes earlier.
Area forecast discussion, Aug 3, 2:12 AM EDT, 1 hour 20 minutes before
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</html>Hazardous weather outlook, Aug 3, 3:30 AM EDT, 2 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 330 AM EDT Mon Aug 3 2020 NCZ001>003-018-019-VAZ015>017-032-040730- Ashe-Alleghany NC-Surry-Watauga-Wilkes-Grayson-Carroll-Floyd-Patrick- 330 AM EDT Mon Aug 3 2020 ...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH TUESDAY EVENING... This Hazardous Weather Outlook is for north central North Carolina, northwest North Carolina and southwest Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. In addition, scattered thunderstorms could become severe and produce damaging winds. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. In addition, scattered thunderstorms could become severe and produce damaging winds during Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. NCZ004>006-020-VAZ022>024-033>035-043>047-058-059-040730- Stokes-Rockingham-Caswell-Yadkin-Roanoke-Botetourt-Rockbridge- Franklin-Bedford-Amherst-Henry-Pittsylvania-Campbell-Appomattox- Buckingham-Halifax-Charlotte- 330 AM EDT Mon Aug 3 2020 ...FLASH FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH TUESDAY EVENING... This Hazardous Weather Outlook is for north central North Carolina, northwest North Carolina, central Virginia, south central Virginia and west central Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. In addition, scattered thunderstorms could become severe and produce damaging winds. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. In addition, scattered thunderstorms could become severe and produce damaging winds during Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. VAZ007-009>014-018>020-WVZ042>044-507-508-040730- Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Craig- Alleghany VA-Bath-Mercer-Summers-Monroe-Eastern Greenbrier- Western Greenbrier- 330 AM EDT Mon Aug 3 2020 This Hazardous Weather Outlook is for southwest Virginia, west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Scattered thunderstorms may bring locally heavy rainfall that could lead to flash flooding. In addition, they may become severe and produce damaging winds. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Scattered thunderstorms on Tuesday may bring locally heavy rainfall that could lead to flash flooding. In addition, they may become severe and produce damaging winds. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PW
In the hours before
Special weather statement, Aug 2, 11:52 PM EDT, 3 hours 40 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
1152 PM EDT Sun Aug 2 2020
VAZ044>046-058-059-030445-
Halifax-Campbell-Pittsylvania-Charlotte-Appomattox-
1152 PM EDT Sun Aug 2 2020
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT
SOUTHERN APPOMATTOX...CHARLOTTE...SOUTHEASTERN CAMPBELL...CENTRAL
PITTSYLVANIA AND HALIFAX COUNTIES AND THE CITY OF DANVILLE...
At 1151 PM EDT, strong thunderstorms were clustered near Crystal
Hill, or near Halifax, moving northeast at 40 mph.
Locations impacted include...
Danville...
South Boston...
Appomattox...
Halifax...
Chatham...
Brookneal...
and Keysville.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 3689 7849 3670 7865 3666 7860 3666 7861
3669 7865 3668 7870 3654 7873 3655 7971
3738 7892 3732 7863 3726 7868 3720 7869
3719 7864 3717 7864 3714 7859 3715 7855
3709 7848 3708 7844
TIME...MOT...LOC 0351Z 226DEG 37KT 3681 7891
RABSpecial weather statement, Aug 3, 12:12 AM EDT, 3 hours 20 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
1212 AM EDT Mon Aug 3 2020
NCZ006-VAZ044-030515-
Caswell-Pittsylvania-
1212 AM EDT Mon Aug 3 2020
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT CASWELL AND
SOUTHEASTERN PITTSYLVANIA COUNTIES including THE CITY OF DANVILLE...
At 1211 AM EDT, strong thunderstorms were clustered over Providence
into the southeastern portion of Danville City, moving northeast at
20 mph.
Winds in excess of 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Danville...
Yanceyville...
Bethel...
Providence...
Camp Springs...
Milton...
and Quick.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 3654 7951 3655 7953 3676 7918 3674 7917
3654 7922 3654 7914 3646 7914 3625 7951
3625 7953
TIME...MOT...LOC 0411Z 238DEG 18KT 3652 7936
RABSpecial weather statement, Aug 3, 1:30 AM EDT, 2 hours 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 |
|---|---|---|---|---|
| Aug 2, 11:52 PM EDT | Special Weather Statement | RNK | Charlotte, Halifax, Pittsylvania, City of Danville | 53 min |
| Aug 3, 12:12 AM EDT | Special Weather Statement | RNK | City of Danville | 63 min |
| Aug 3, 12:35 AM EDT | Severe Thunderstorm Warning | RNK | Halifax, Pittsylvania, City of Danville | 55 min |
| Aug 3, 12:53 AM EDT | Flash Flood Warning | RNK | Pittsylvania | 3 hr |
| Aug 3, 1:05 AM EDT | Areal Flood Advisory | RNK | Halifax | 3 hr |
| Aug 3, 4:23 AM EDT | Special Weather Statement | RNK | Bedford | 37 min |
| Aug 3, 4:34 AM EDT | Areal Flood Advisory | RNK | Carroll, Floyd, Patrick, City of Galax | 4 hr |
| Aug 3, 6:17 AM EDT | Special Weather Statement | RNK | City of Covington | 43 min |
| Aug 3, 9:11 AM EDT | Special Weather Statement | RNK | Tazewell | 34 min |
| Aug 3, 9:19 AM EDT | Special Weather Statement | RNK | Grayson, Smyth | 41 min |
| Aug 3, 9:41 AM EDT | Areal Flood Advisory | RNK | Smyth | 3 hr |
| Aug 3, 9:56 AM EDT | Special Weather Statement | RNK | Bland, Smyth | 49 min |
| Aug 3, 10:09 AM EDT | Special Weather Statement | RNK | Grayson, Smyth | 66 min |
| Aug 3, 10:55 AM EDT | Special Weather Statement | RNK | Bland, Giles | 50 min |
| Aug 3, 12:31 PM EDT | Special Weather Statement | RNK | Bath | 44 min |
| Aug 3, 12:33 PM EDT | Areal Flood Advisory | RNK | Montgomery, Roanoke, City of Radford, City of Roanoke, City of Salem | 3 hr |
| Aug 3, 12:41 PM EDT | Special Weather Statement | RNK | Botetourt, Craig, Montgomery, Roanoke, City of Roanoke, City of Salem | 64 min |
| Aug 3, 1:04 PM EDT | Special Weather Statement | RNK | Campbell, Floyd, Franklin, Henry, Patrick, Pittsylvania and 2 more | 41 min |
| Aug 3, 1:18 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Floyd, Franklin, Henry, Patrick, Pittsylvania and 1 more | 57 min |
| Aug 3, 1:34 PM EDT | Special Weather Statement | RNK | Appomattox, Charlotte | 41 min |
| Aug 3, 2:14 PM EDT | Special Weather Statement | RNK | Bedford, Campbell, Franklin, City of Lynchburg, City of Roanoke, City of Salem | 46 min |
| Aug 3, 2:19 PM EDT | Special Weather Statement | RNK | Buckingham | 41 min |
| Aug 3, 2:28 PM EDT | Areal Flood Advisory | RNK | Campbell, Charlotte, Halifax | 94 min |
| Aug 3, 2:31 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Botetourt, Franklin | 44 min |
| Aug 3, 2:49 PM EDT | Areal Flood Advisory | RNK | City of Lynchburg | 3 hr |
| Aug 3, 3:09 PM EDT | Special Weather Statement | RNK | Amherst, City of Lynchburg | 36 min |
| Aug 3, 3:32 PM EDT | Areal Flood Advisory | RNK | Amherst, Rockbridge, City of Buena Vista | 3 hr |
| Aug 3, 1:30 AM EDT | Special Weather Statement | RNK | Rockingham | 60 min |
| Aug 3, 2:25 AM EDT | Special Weather Statement | RNK | Surry, Yadkin | 65 min |
| Aug 3, 3:10 AM EDT | Areal Flood Advisory | RNK | Yadkin | 3 hr |
| Aug 3, 6:50 AM EDT | Special Weather Statement | RNK | Watauga | 40 min |
| Aug 3, 7:09 AM EDT | Special Weather Statement | RNK | Wilkes | 81 min |
| Aug 3, 10:05 AM EDT | Areal Flood Advisory | RNK | Ashe, Watauga, Wilkes | 5 hr |
Nearby
Severe Thunderstorm Warnings in Virginia, 2020Severe Thunderstorm Warnings in North Carolina, 2020Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.