Alert archive / North Carolina / Special Weather Statements in 2017
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Apr 22, 2017, 12:09 PM EDT for Alleghany County, North Carolina. It was in force for 36 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
- Apr 22, 2017, 12:09 PM EDT (16:09 UTC)
- Expired
- Apr 22, 2017, 12:45 PM EDT
- In force
- 36 min
- Issued by
- NWS Blacksburg, VA
County Alleghany County, NC
The radar
The Roanoke radar (KFCX), 77 km from the middle of the area, began a volume at 16:10 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, 4.2 hours before the alert went out and 112 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
- 141 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Apr 22, 10:03 AM EDT, 2 hours 6 minutes earlier.
Area forecast discussion, Apr 22, 10:03 AM EDT, 2 hours 6 minutes before
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</html>Hazardous weather outlook, Apr 22, 4:16 AM EDT, 7 hours 53 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 416 AM EDT Sat Apr 22 2017 NCZ001-002-018-VAZ007-009>018-022-023-WVZ042>044-230830- Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski- Montgomery-Grayson-Carroll-Floyd-Craig-Roanoke-Botetourt-Mercer- Summers-Monroe- 416 AM EDT Sat Apr 22 2017 This Hazardous Weather Outlook is for northwest North Carolina, southwest Virginia, west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Heavy rain showers and thunderstorms will occur this afternoon and evening. Localized flooding is possible. In addition a few storms could bring isolated wind damage. .DAYS TWO THROUGH SEVEN...Sunday through Friday. A prolonged period of moderate to heavy rain is possible Sunday through Monday. This may lead to minor flooding on streams and rivers. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ003>006-019-020-VAZ032>034-043>045-058-059-230830- Surry-Stokes-Rockingham-Caswell-Wilkes-Yadkin-Patrick-Franklin- Bedford-Henry-Pittsylvania-Campbell-Halifax-Charlotte- 416 AM EDT Sat Apr 22 2017 This Hazardous Weather Outlook is for north central North Carolina, northwest North Carolina, central Virginia, south central Virginia, southwest Virginia and west central Virginia. .DAY ONE...Today and tonight. Thunderstorms this afternoon may become severe with isolated damaging winds and hail possible. Localized flooding will also be possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday. A prolonged period of moderate to heavy rain is possible Sunday through Monday. This may lead to minor flooding on streams and rivers. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. VAZ019-020-024-035-046-047-WVZ507-508-230830- Alleghany VA-Bath-Rockbridge-Amherst-Appomattox-Buckingham- Eastern Greenbrier-Western Greenbrier- 416 AM EDT Sat Apr 22 2017 This Hazardous Weather Outlook is for central Virginia, west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Heavy downpours this afternoon and tonight could lead to localized flooding. .DAYS TWO THROUGH SEVEN...Sunday through Friday. A prolonged period of moderate to heavy rain is possible Sunday through Monday. This rain may lead to minor flooding on streams and rivers. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Apr 22, 12:09 PM EDT, 0 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 |
|---|---|---|---|---|
| Apr 22, 12:31 PM EDT | Special Weather Statement | RNK | City of Roanoke | 44 min |
| Apr 22, 1:40 PM EDT | Special Weather Statement | RNK | Franklin | 65 min |
| Apr 22, 2:02 PM EDT | Special Weather Statement | RNK | Patrick, City of Martinsville | 58 min |
| Apr 22, 2:20 PM EDT | Special Weather Statement | RNK | Patrick | 25 min |
| Apr 22, 2:37 PM EDT | Severe Thunderstorm Warning | RNK | Appomattox, Bedford, Campbell, Halifax, Pittsylvania, City of Lynchburg | 53 min |
| Apr 22, 2:41 PM EDT | Special Weather Statement | RNK | Halifax | 34 min |
| Apr 22, 2:54 PM EDT | Tornado Warning | RNK | Charlotte, Halifax | 23 min |
| Apr 22, 3:01 PM EDT | Special Weather Statement | RNK | Pittsylvania | 29 min |
| Apr 22, 3:09 PM EDT | Severe Thunderstorm Warning | RNK | Halifax, Henry, Pittsylvania | 51 min |
| Apr 22, 3:15 PM EDT | Special Weather Statement | RNK | Charlotte | 45 min |
| Apr 22, 4:00 PM EDT | Special Weather Statement | RNK | Halifax, City of Danville | 30 min |
| Apr 22, 4:06 PM EDT | Tornado Warning | RNK | Charlotte, Halifax | 24 min |
| Apr 22, 4:11 PM EDT | Flood Watch | RNK | Amherst, Appomattox, Bedford, Bland, Botetourt, Campbell and 27 more | 64 hr |
| Apr 22, 1:35 PM EDT | Special Weather Statement | RNK | Alleghany | 40 min |
| Apr 22, 2:22 PM EDT | Special Weather Statement | RNK | Surry | 23 min |
| Apr 22, 3:53 PM EDT | Special Weather Statement | RNK | Rockingham, Stokes | 37 min |
| Apr 22, 4:40 PM EDT | Special Weather Statement | RNK | Caswell | 20 min |
Nearby
Special Weather Statements in North Carolina, 2017Every special weather statement in 2017
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.