Alert archive / Virginia / Special Weather Statements in 2021
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Jul 14, 2021, 4:21 PM EDT for Patrick County, Virginia. It was in force for 24 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
- Jul 14, 2021, 4:21 PM EDT (20:21 UTC)
- Expired
- Jul 14, 2021, 4:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Blacksburg, VA
County Patrick County, VA
The radar
The Roanoke radar (KFCX), 31 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 85 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
- 95 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 1024 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
911
WWUS81 KRNK 142021
SPSRNK
Special Weather Statement
National Weather Service BLACKSBURG VA
421 PM EDT Wed Jul 14 2021
VAZ017-032-142045-
Patrick-Floyd-
421 PM EDT Wed Jul 14 2021
...A STRONG THUNDERSTORM WILL AFFECT
SOUTHERN FLOYD AND NORTHERN PATRICK COUNTIES...
At 420 PM EDT, a strong thunderstorm was located over Mabry Mill, or
near Woolwine, moving east at 15 mph.
Winds in excess of 30 mph are possible with this storm.
Locations impacted include...
Woolwine...
Meadows Of Dan...
Mabry Mill...
Buffalo Ridge...
Rocky Knob Recreation Area...
Charity...
and Rocky Knob Summit.
Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.
LAT...LON 3668 8046 3669 8046 3670 8045 3671 8047
3676 8048 3688 8023 3687 8023 3687 8022
3666 8007
TIME...MOT...LOC 2020Z 257DEG 15KT 3675 8038
$$
WPThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 1:13 PM EDT | Special Weather Statement | RNK | Henry, City of Martinsville | 32 min |
| Jul 14, 1:57 PM EDT | Special Weather Statement | RNK | Bedford | 33 min |
| Jul 14, 2:29 PM EDT | Special Weather Statement | RNK | Franklin | 31 min |
| Jul 14, 2:31 PM EDT | Special Weather Statement | RNK | Floyd | 29 min |
| Jul 14, 3:10 PM EDT | Special Weather Statement | RNK | Carroll | 35 min |
| Jul 14, 3:38 PM EDT | Special Weather Statement | RNK | Halifax | 37 min |
| Jul 14, 3:46 PM EDT | Special Weather Statement | RNK | Bedford, City of Lynchburg | 44 min |
| Jul 14, 3:50 PM EDT | Special Weather Statement | RNK | Carroll | 25 min |
| Jul 14, 3:58 PM EDT | Areal Flood Advisory | RNK | Amherst, Bedford, Campbell, City of Lynchburg | 93 min |
| Jul 14, 5:03 PM EDT | Special Weather Statement | RNK | Buckingham | 27 min |
| Jul 14, 1:11 PM EDT | Special Weather Statement | RNK | Wilkes | 34 min |
| Jul 14, 3:05 PM EDT | Special Weather Statement | RNK | Surry | 25 min |
| Jul 14, 4:39 PM EDT | Special Weather Statement | RNK | Stokes | 36 min |
| Jul 14, 4:40 PM EDT | Special Weather Statement | RNK | Caswell | 35 min |
Nearby
Special Weather Statements in Virginia, 2021Every special weather statement in 2021
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.