Alert archive / North Carolina / Special Weather Statements in 2020
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Aug 7, 2020, 1:34 PM EDT for Alleghany County, North Carolina. It was in force for 26 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
- Aug 7, 2020, 1:34 PM EDT (17:34 UTC)
- Expired
- Aug 7, 2020, 2:00 PM EDT
- In force
- 26 min
- Issued by
- NWS Blacksburg, VA
County Alleghany County, NC
The radar
The Roanoke radar (KFCX), 120 km from the middle of the area, began a volume at 17:34 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 12:00Z, 5.6 hours before the alert went out and 133 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 110 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 Aug 7, 10:00 AM EDT, 3 hours 34 minutes earlier.
Area forecast discussion, Aug 7, 10:00 AM EDT, 3 hours 34 minutes before
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</html>Hazardous weather outlook, Aug 7, 3:50 AM EDT, 9 hours 44 minutes before
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</html>In the hours before
Local storm report, Aug 7, 10:23 AM EDT, 3 hours 11 minutes before
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</html>Local storm report, Aug 7, 10:40 AM EDT, 2 hours 54 minutes before
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</html>Local storm report, Aug 7, 10:43 AM EDT, 2 hours 51 minutes before
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</html>Local storm report, Aug 7, 11:01 AM EDT, 2 hours 33 minutes before
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</html>Special weather statement, Aug 7, 1:30 PM EDT, 4 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
130 PM EDT Fri Aug 7 2020
VAZ032-071800-
Patrick-
130 PM EDT Fri Aug 7 2020
...A STRONG THUNDERSTORM WILL AFFECT
NORTHEASTERN PATRICK COUNTY...
At 130 PM EDT, a strong thunderstorm was located over Woolwine,
moving east at 15 mph.
Winds in excess of 30 mph and pea size hail are possible with this
storm.
Locations impacted include...
Woolwine...
Rocky Knob Recreation Area...
Charity...
and Buffalo Ridge.
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 3680 8038 3680 8036 3681 8035 3687 8019
3685 8014 3673 8009 3671 8009 3670 8037
TIME...MOT...LOC 1730Z 255DEG 12KT 3678 8030
RRSpecial weather statement, Aug 7, 1:34 PM EDT, 0 minutes before
Special Weather Statement National Weather Service BLACKSBURG VA 134 PM EDT Fri Aug 7 2020 NCZ001-002-019-071800- Ashe-Wilkes-Alleghany- 134 PM EDT Fri Aug 7 2020 ...A STRONG THUNDERSTORM WILL AFFECT WESTERN ALLEGHANY...NORTH CENTRAL WILKES AND SOUTHEASTERN ASHE COUNTIES IN NORTHWESTERN NORTH CAROLINA... At 134 PM EDT, a strong thunderstorm was located over Glendale Springs, moving east at 10 mph. Winds in excess of 30 mph and pea size hail are possible with this storm. Locations impacted include... West Jefferson... Laurel Springs... Glendale Springs... Mc Grady... Stratford... Idlewild... and Wagoner. 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 3630 8145 3639 8149 3654 8121 3632 8111 TIME...MOT...LOC 1734Z 257DEG 9KT 3636 8138 RR
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 8:39 PM EDT | Special Weather Statement | RNK | Campbell | 51 min |
| Aug 6, 8:47 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Campbell, Charlotte, Franklin, Halifax, Pittsylvania | 58 min |
| Aug 6, 9:09 PM EDT | Special Weather Statement | RNK | City of Lynchburg | 36 min |
| Aug 6, 10:45 PM EDT | Areal Flood Advisory | RNK | Amherst, Bedford, Campbell, City of Lynchburg | 117 min |
| Aug 7, 1:30 PM EDT | Special Weather Statement | RNK | Patrick | 30 min |
| Aug 7, 2:22 PM EDT | Special Weather Statement | RNK | Franklin | 23 min |
| Aug 7, 2:44 PM EDT | Special Weather Statement | RNK | Franklin | 46 min |
| Aug 7, 3:07 PM EDT | Areal Flood Advisory | RNK | Grayson | 3 hr |
| Aug 7, 3:54 PM EDT | Special Weather Statement | RNK | City of Galax | 36 min |
| Aug 7, 4:14 PM EDT | Special Weather Statement | RNK | Carroll | 31 min |
| Aug 7, 2:10 PM EDT | Special Weather Statement | RNK | Alleghany, Ashe | 35 min |
| Aug 7, 3:00 PM EDT | Special Weather Statement | RNK | Ashe | 45 min |
| Aug 7, 3:04 PM EDT | Areal Flood Advisory | RNK | Ashe, Wilkes | 3 hr |
| Aug 7, 3:29 PM EDT | Flash Flood Warning | RNK | Ashe | 6 hr |
| Aug 7, 4:58 PM EDT | Special Weather Statement | RNK | Wilkes | 32 min |
Nearby
Special Weather Statements in North Carolina, 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.