Alert archive / Virginia / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 188, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 30, 2018, 1:16 PM EDT for Franklin County, Henry County, Patrick County, Virginia. It was in force for 46 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 30, 2018, 1:16 PM EDT (17:16 UTC)
- Expired
- Aug 30, 2018, 2:02 PM EDT
- In force
- 46 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Franklin County, VA, Henry County, VA, Patrick County, VA
The radar
The Roanoke radar (KFCX), 33 km from the middle of the area, began a volume at 17:15 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, 5.3 hours before the alert went out and 67 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
- 609 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 928 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -33 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 30, 10:00 AM EDT, 3 hours 16 minutes earlier.
Area forecast discussion, Aug 30, 10:00 AM EDT, 3 hours 16 minutes before
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</html>Hazardous weather outlook, Aug 30, 5:07 AM EDT, 8 hours 9 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 507 AM EDT Thu Aug 30 2018 NCZ001>006-018>020-310915- Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes- Yadkin- 507 AM EDT Thu Aug 30 2018 This Hazardous Weather Outlook is for north central North Carolina and northwest North Carolina. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. VAZ007-009>020-022>024-032>035-043>047-058-059-WVZ042>044-507-508- 310915- Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-Carroll- Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-Patrick- Franklin-Bedford-Amherst-Henry-Pittsylvania-Campbell-Appomattox- Buckingham-Halifax-Charlotte-Mercer-Summers-Monroe- Eastern Greenbrier-Western Greenbrier- 507 AM EDT Thu Aug 30 2018 This Hazardous Weather Outlook is for central Virginia, south central Virginia, southwest Virginia, west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Scattered thunderstorms this afternoon. The severe threat is limited, with the probability of anything severe within 25 miles of a point to be less than 15 percent. Greatest thunderstorm coverage is expected between 200 PM and 800 PM. Severe threat, albeit marginal, would be from a damaging wind gust. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 30, 12:42 PM EDT, 34 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
1242 PM EDT THU AUG 30 2018
VAZ032-301715-
Patrick-
1242 PM EDT THU AUG 30 2018
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT EASTERN PATRICK
COUNTY...
Until 115 PM EDT.
At 1242 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Charity to near Patrick Springs to near
Stuart. Movement was northeast at 10 mph.
Winds in excess of 40 mph and half inch hail are possible with these
storms.
Locations impacted include...
Stuart...
Woolwine...
Charity...
Buffalo Ridge...
and Patrick Springs.
LAT...LON 3684 8010 3671 8013 3664 8023 3660 8039
3666 8040 3670 8032 3682 8028
TIME...MOT...LOC 1642Z 246DEG 8KT 3680 8020 3668 8024 3664 8033
DSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 12:42 PM EDT | Special Weather Statement | RNK | Patrick | 33 min |
| Aug 30, 2:13 PM EDT | Special Weather Statement | RNK | Botetourt | 47 min |
| Aug 30, 3:06 PM EDT | Special Weather Statement | RNK | Bland | 24 min |
| Aug 30, 3:30 PM EDT | Special Weather Statement | RNK | Giles | 45 min |
| Aug 30, 3:40 PM EDT | Flash Flood Warning | RNK | Carroll, Grayson, City of Galax | 12 hr |
| Aug 30, 3:52 PM EDT | Special Weather Statement | RNK | Alleghany, Bath, Craig, City of Covington | 38 min |
| Aug 30, 4:01 PM EDT | Special Weather Statement | RNK | Montgomery | 44 min |
| Aug 30, 4:02 PM EDT | Severe Thunderstorm Warning | RNK | Grayson | 39 min |
| Aug 30, 4:29 PM EDT | Special Weather Statement | RNK | Grayson, Wythe | 61 min |
| Aug 30, 4:31 PM EDT | Special Weather Statement | RNK | Craig | 59 min |
| Aug 30, 4:33 PM EDT | Special Weather Statement | RNK | City of Lynchburg | 27 min |
| Aug 30, 4:42 PM EDT | Special Weather Statement | RNK | Amherst | 33 min |
| Aug 30, 4:52 PM EDT | Special Weather Statement | RNK | Pulaski | 38 min |
| Aug 30, 4:53 PM EDT | Special Weather Statement | RNK | City of Lynchburg | 37 min |
| Aug 30, 5:01 PM EDT | Special Weather Statement | RNK | Appomattox | 29 min |
| Aug 30, 5:06 PM EDT | Severe Thunderstorm Warning | RNK | Montgomery, Roanoke | 54 min |
| Aug 30, 5:18 PM EDT | Special Weather Statement | RNK | City of Lynchburg | 27 min |
| Aug 30, 5:23 PM EDT | Special Weather Statement | RNK | Campbell | 37 min |
| Aug 30, 5:34 PM EDT | Flash Flood Warning | RNK | Montgomery, Pulaski, City of Radford | 3 hr |
| Aug 30, 5:35 PM EDT | Severe Thunderstorm Warning | RNK | Amherst | 55 min |
| Aug 30, 5:54 PM EDT | Areal Flood Advisory | RNK | Bland, Giles, Pulaski, Smyth, Tazewell, Wythe | 2 hr |
| Aug 30, 5:56 PM EDT | Special Weather Statement | RNK | Halifax | 34 min |
| Aug 30, 6:03 PM EDT | Special Weather Statement | RNK | Amherst | 27 min |
| Aug 30, 6:06 PM EDT | Special Weather Statement | RNK | Floyd | 54 min |
| Aug 30, 6:22 PM EDT | Special Weather Statement | RNK | Amherst | 23 min |
| Aug 30, 6:27 PM EDT | Areal Flood Advisory | RNK | Floyd, Montgomery, Pulaski | 118 min |
| Aug 30, 6:31 PM EDT | Special Weather Statement | RNK | Appomattox | 29 min |
| Aug 30, 6:44 PM EDT | Severe Thunderstorm Warning | RNK | Appomattox, Buckingham | 61 min |
| Aug 30, 6:47 PM EDT | Special Weather Statement | RNK | Amherst | 28 min |
| Aug 30, 6:54 PM EDT | Special Weather Statement | RNK | Franklin | 66 min |
| Aug 30, 7:09 PM EDT | Special Weather Statement | RNK | Charlotte | 21 min |
| Aug 30, 7:14 PM EDT | Special Weather Statement | RNK | Buckingham | 31 min |
| Aug 30, 7:23 PM EDT | Special Weather Statement | RNK | Charlotte | 22 min |
| Aug 30, 7:30 PM EDT | Special Weather Statement | RNK | Henry, City of Martinsville | 30 min |
| Aug 30, 7:31 PM EDT | Special Weather Statement | RNK | Henry, City of Martinsville | 59 min |
| Aug 30, 7:47 PM EDT | Special Weather Statement | RNK | Charlotte | 28 min |
| Aug 30, 7:48 PM EDT | Special Weather Statement | RNK | Buckingham | 27 min |
| Aug 30, 7:51 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Franklin, Pittsylvania | 35 min |
| Aug 30, 7:56 PM EDT | Areal Flood Advisory | RNK | Appomattox, Buckingham, Campbell, Charlotte | 2 hr |
| Aug 30, 3:54 PM EDT | Special Weather Statement | RNK | Ashe | 51 min |
| Aug 30, 4:57 PM EDT | Special Weather Statement | RNK | Caswell | 33 min |
| Aug 30, 5:27 PM EDT | Special Weather Statement | RNK | Caldwell | 33 min |
| Aug 30, 5:51 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes | 54 min |
| Aug 30, 6:00 PM EDT | Special Weather Statement | RNK | Wilkes | 30 min |
| Aug 30, 2:34 PM EDT | Special Weather Statement | RNK | Greenbrier, Summers | 56 min |
| Aug 30, 2:41 PM EDT | Areal Flood Advisory | RNK | Greenbrier | 3 hr |
| Aug 30, 3:39 PM EDT | Special Weather Statement | RNK | Mercer | 36 min |
| Aug 30, 4:18 PM EDT | Special Weather Statement | RNK | Monroe | 57 min |
| Aug 30, 4:39 PM EDT | Areal Flood Advisory | RNK | Mercer, Summers | 20 min |
| Aug 30, 4:55 PM EDT | Flash Flood Warning | RNK | Mercer, Summers | 3 hr |
Nearby
Severe Thunderstorm Warnings in Virginia, 2018Every severe thunderstorm 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.