Alert archive / North Carolina / Tornado Warnings in 2021
Tornado Warning 4, NWS Blacksburg, VA
NWS Blacksburg, VA issued this tornado warning at Apr 9, 2021, 4:20 PM EDT for Surry County, North Carolina. It was in force for 25 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 9, 2021, 4:20 PM EDT (20:20 UTC)
- Expired
- Apr 9, 2021, 4:45 PM EDT
- In force
- 25 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
County Surry County, NC
The radar
The Roanoke radar (KFCX), 66 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 9, 4:20 PM EDT | HAIL 1 | 1 Se Woodville, NC | |
| Apr 9, 4:26 PM EDT | HAIL 0.88 | 2 Nw Flat Rock, NC | A SOLID COATING OF NICKEL TO DIME SIZE HAIL ON THE GROUND ALL AROUND THE MOUNT AIRY AREA. |
| Apr 9, 4:26 PM EDT | HAIL 0.88 | 2 Nw Flat Rock, NC | CORRECTS PREVIOUS HAIL REPORT FROM 2 NW FLAT ROCK. A SOLID COATING OF NICKEL TO DIME SIZE HAIL ON THE NORTHEAST SIDE OF MOUNT AIRY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 9, 3:38 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.3 hours before the alert went out and 73 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
- 361 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
522
WFUS51 KRNK 092020
TORRNK
NCC171-092045-
/O.NEW.KRNK.TO.W.0004.210409T2020Z-210409T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
420 PM EDT Fri Apr 9 2021
The National Weather Service in BLACKSBURG has issued a
* Tornado Warning for...
Northeastern Surry County in northwestern North Carolina...
* Until 445 PM EDT.
* At 419 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Flat Rock, moving east at 20 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Mount Airy...
Flat Rock...
Pilot Mountain...
Woodville...
Westfield...
and White Plains.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3644 8063 3656 8061 3655 8044 3638 8045
TIME...MOT...LOC 2019Z 265DEG 19KT 3651 8056
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$
RAB2 follow-up statements
073
WWUS51 KRNK 092038
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
438 PM EDT Fri Apr 9 2021
NCC171-092045-
/O.CON.KRNK.TO.W.0004.000000T0000Z-210409T2045Z/
Surry NC-
438 PM EDT Fri Apr 9 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR
NORTHEASTERN SURRY COUNTY...
At 438 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Westfield, or near Francisco, moving east at 20 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Woodville...
and Westfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3651 8051 3655 8049 3655 8044 3644 8045
3645 8047
TIME...MOT...LOC 2038Z 265DEG 19KT 3652 8043
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$
RAB110
WWUS51 KRNK 092045
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
445 PM EDT Fri Apr 9 2021
NCC171-092055-
/O.EXP.KRNK.TO.W.0004.000000T0000Z-210409T2045Z/
Surry NC-
445 PM EDT Fri Apr 9 2021
...THE TORNADO WARNING FOR NORTHEASTERN SURRY COUNTY HAS EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.
A Severe Thunderstorm Watch remains in effect until midnight EDT for
north central and northwestern North Carolina...and southwestern
Virginia.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
LAT...LON 3651 8051 3655 8049 3655 8044 3644 8045
3645 8047
TIME...MOT...LOC 2045Z 265DEG 19KT 3652 8039
$$
RABThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 3:28 PM EDT | Severe Thunderstorm Warning | RNK | Surry | 47 min |
| Apr 9, 4:11 PM EDT | Severe Thunderstorm Warning | RNK | Surry | 49 min |
| Apr 9, 4:35 PM EDT | Severe Thunderstorm Warning | RNK | Stokes | 55 min |
| Apr 9, 6:00 PM EDT | Special Weather Statement | RNK | Rockingham | 45 min |
Nearby
Tornado Warnings in North Carolina, 2021Every tornado warning in 2021Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.