Alert archive / Virginia / Special Weather Statements in 2020
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Apr 7, 2020, 12:13 PM EDT for City of Roanoke, Virginia. It was in force for 32 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 7, 2020, 12:13 PM EDT (16:13 UTC)
- Expired
- Apr 7, 2020, 12:45 PM EDT
- In force
- 32 min
- Issued by
- NWS Blacksburg, VA
County City of Roanoke, VA
The radar
The Roanoke radar (KFCX), 49 km from the middle of the area, began a volume at 16:16 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, 4.2 hours before the alert went out and 43 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
- 6 J/kg
- Mixed-layer CIN
- -225 J/kg
- Mixed-layer LCL
- 1126 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 7, 9:09 AM EDT, 3 hours 4 minutes earlier.
Area forecast discussion, Apr 7, 9:09 AM EDT, 3 hours 4 minutes before
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</html>Hazardous weather outlook, Apr 7, 4:20 AM EDT, 7 hours 53 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 420 AM EDT Tue Apr 7 2020 NCZ001>006-018>020-VAZ007-009>018-022-032-033-043-044-058-059- WVZ042>044-081100- Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes- Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson- Carroll-Floyd-Craig-Roanoke-Patrick-Franklin-Henry-Pittsylvania- Halifax-Charlotte-Mercer-Summers-Monroe- 420 AM EDT Tue Apr 7 2020 This Hazardous Weather Outlook is for north central North Carolina, northwest North Carolina, south central Virginia, southwest Virginia, west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Isolated to scattered thunderstorms are expected this afternoon and tonight. A few of these thunderstorms could become severe producing quarter-sized and possibly larger hail as well as damaging wind gusts. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered thunderstorms are expected Wednesday and Thursday in advance of a cold front which is expected to move through the region Thursday. There is a marginal threat of severe thunderstorms both days, mainly during the afternoon and evening. The main threat from any strong to severe thunderstorms will be quarter-sized or larger hail and damaging wind gusts. In addition, strong gusty northwest winds are expected Thursday afternoon into Friday behind the strong cold front. Winds may be strong enough in some areas, especially along and west of the Blue Ridge to require a Wind Advisory. .SPOTTER INFORMATION STATEMENT... Limited spotter activation is possible this afternoon and evening with a greater likelihood of spotter activation Wednesday afternoon and evening. VAZ019-020-023-024-034-035-045>047-WVZ507-508-081100- Alleghany VA-Bath-Botetourt-Rockbridge-Bedford-Amherst-Campbell- Appomattox-Buckingham-Eastern Greenbrier-Western Greenbrier- 420 AM EDT Tue Apr 7 2020 This Hazardous Weather Outlook is for central Virginia, south central Virginia, west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Scattered thunderstorms are expected this afternoon, especially in the vicinity of the I-64 corridor and northward, with isolated to scattered thunderstorms further south of this region. Quarter-sized or larger hail and damaging thunderstorm wind gusts are the main threats with any severe thunderstorms. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered thunderstorms are expected Wednesday and Thursday in advance of a cold front which is expected to move through the region Thursday. There is a marginal threat of severe thunderstorms both days, mainly during the afternoon and evening each day. The main threat from any strong to severe thunderstorms will be quarter-sized or larger hail and damaging wind gusts. In addition, strong gusty northwest winds are expected Thursday afternoon into Friday behind the strong cold front. Winds may be strong enough in some areas, especially along and west of the Blue Ridge to require a Wind Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed, especially near the I-64 corridor and northward this afternoon and evening, with spotter activation also possible again Wednesday afternoon and evening. RAB
In the hours before
Special weather statement, Apr 7, 11:34 AM EDT, 39 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 7, 11:34 AM EDT | Special Weather Statement | RNK | City of Lynchburg | 26 min |
| Apr 7, 12:17 PM EDT | Special Weather Statement | RNK | Appomattox | 28 min |
| Apr 7, 12:22 PM EDT | Special Weather Statement | RNK | Patrick | 23 min |
| Apr 7, 1:22 PM EDT | Special Weather Statement | RNK | Montgomery | 23 min |
| Apr 7, 1:54 PM EDT | Special Weather Statement | RNK | Halifax | 21 min |
| Apr 7, 2:16 PM EDT | Special Weather Statement | RNK | Halifax | 29 min |
| Apr 7, 2:40 PM EDT | Special Weather Statement | RNK | Halifax | 20 min |
| Apr 7, 4:18 PM EDT | Special Weather Statement | RNK | City of Lynchburg | 27 min |
| Apr 7, 4:42 PM EDT | Special Weather Statement | RNK | Amherst, City of Lynchburg | 33 min |
| Apr 7, 5:13 PM EDT | Special Weather Statement | RNK | Buckingham | 62 min |
| Apr 7, 2:24 PM EDT | Special Weather Statement | RNK | Stokes | 36 min |
Nearby
Special Weather Statements in Virginia, 2020Every special weather statement 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.