Alert archive / North Carolina / Tornado Warnings in 2020

Tornado Warning 7, NWS Blacksburg, VA

April 13, 2020Caswell County, North Carolina

NWS Blacksburg, VA issued this tornado warning at Apr 13, 2020, 5:58 AM EDT for Caswell County, North Carolina. It was in force for 47 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 13, 2020, 5:58 AM EDT (09:58 UTC)
Expired
Apr 13, 2020, 6:45 AM EDT
In force
47 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Caswell County, NC

The radar

The Raleigh/Durham radar (KRAX), 104 km from the middle of the area, began a volume at 09:58 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 13, 5:01 AM EDTTornado WatchSPC7 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 10.0 hours before the alert went out and 56 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2020-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2020-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 299 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
3 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
299 m²/s²
0-3 km storm-relative helicity
489 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

509 
WFUS51 KRNK 130958
TORRNK
NCC033-131045-
/O.NEW.KRNK.TO.W.0007.200413T0958Z-200413T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
558 AM EDT Mon Apr 13 2020

The National Weather Service in BLACKSBURG has issued a

* Tornado Warning for...
  Southern Caswell County in north central North Carolina...

* Until 645 AM EDT.
    
* At 558 AM EDT, a severe thunderstorm capable of producing a tornado
  was located near Camp Springs, moving northeast at 50 mph.

  HAZARD...Tornado.

  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...
  Prospect Hill...
  Jericho...
  Topnot...
  Leasburg...
  Hightowers...
  and Baynes.

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.

&&

LAT...LON 3625 7953 3644 7914 3624 7915
TIME...MOT...LOC 0958Z 245DEG 42KT 3621 7952 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

DS
3 follow-up statements
440 
WWUS51 KRNK 131018 RRA
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
618 AM EDT Mon Apr 13 2020

NCC033-131045-
/O.CON.KRNK.TO.W.0007.000000T0000Z-200413T1045Z/
Caswell NC-
618 AM EDT Mon Apr 13 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 AM EDT FOR 
SOUTHERN CASWELL COUNTY...
    
At 615 AM EDT, a severe thunderstorm capable of producing a tornado 
was located near Jericho, moving northeast at 35 mph. Another storm 
capable of producing a tornado was located near Graham in Alamance 
County. This second potential tornado is expected to pass over or 
close to Prospect Hill by 645 AM EDT.

HAZARD...Tornado.

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...
Prospect Hill...
Jericho...
Topnot...
Leasburg...
Hightowers...
and Baynes.

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.

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 3625 7953 3644 7914 3624 7915
TIME...MOT...LOC 1015Z 240DEG 29KT 3632 7932 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

DS
959 
WWUS51 KRNK 131030
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
630 AM EDT Mon Apr 13 2020

NCC033-131045-
/O.CON.KRNK.TO.W.0007.000000T0000Z-200413T1045Z/
Caswell NC-
630 AM EDT Mon Apr 13 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 AM EDT FOR 
SOUTHEASTERN CASWELL COUNTY...
    
At 629 AM EDT, a severe thunderstorm capable of producing a tornado
was located near Prospect Hill, moving northeast at 65 mph.

HAZARD...Tornado.

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...
Prospect Hill...
Leasburg...
and Hightowers.

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.

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 7914 3624 7915 3624 7926 3638 7925
TIME...MOT...LOC 1029Z 238DEG 58KT 3619 7917 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

DS
299 
WWUS51 KRNK 131041 RRA
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
641 AM EDT Mon Apr 13 2020

NCC033-131050-
/O.EXP.KRNK.TO.W.0007.000000T0000Z-200413T1045Z/
Caswell NC-
641 AM EDT Mon Apr 13 2020

...THE TORNADO WARNING FOR SOUTHEASTERN CASWELL COUNTY WILL EXPIRE 
AT 645 AM EDT...
        
The storm which prompted the warning is moving out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until noon EDT for north central
North Carolina...and south central 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 3644 7914 3624 7915 3624 7926 3638 7925
TIME...MOT...LOC 1040Z 245DEG 42KT 3624 7904 

$$

DS

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 10:47 PM EDTSevere Thunderstorm WarningRNKWilkes, Yadkin28 min
Apr 12, 11:17 PM EDTSpecial Weather StatementRNKWilkes13 min
Apr 12, 11:37 PM EDTSpecial Weather StatementRNKSurry8 min
Apr 12, 11:50 PM EDTAreal Flood AdvisoryRNKSurry, Wilkes, Yadkin12 hr
Apr 12, 11:59 PM EDTSpecial Weather StatementRNKSurry31 min
Apr 13, 12:18 AM EDTAreal Flood AdvisoryRNKAlleghany, Ashe, Watauga12 hr
Apr 13, 12:29 AM EDTSevere Thunderstorm WarningRNKAlleghany, Ashe, Watauga, Wilkes31 min
Apr 13, 1:04 AM EDTSpecial Weather StatementRNKStokes26 min
Apr 13, 1:11 AM EDTSpecial Weather StatementRNKAlleghany19 min
Apr 13, 2:18 AM EDTSpecial Weather StatementRNKAshe27 min
Apr 13, 2:24 AM EDTFlash Flood WarningRNKAlleghany, Ashe, Watauga6 hr
Apr 13, 2:25 AM EDTSpecial Weather StatementRNKSurry35 min
Apr 13, 2:42 AM EDTFlash Flood WarningRNKSurry, Wilkes6 hr
Apr 13, 2:48 AM EDTSevere Thunderstorm WarningRNKSurry27 min
Apr 13, 3:23 AM EDTSpecial Weather StatementRNKSurry37 min
Apr 13, 3:45 AM EDTFlash Flood Warning EmergencyCatastrophic damage threatRNKWatauga6 hr
Apr 13, 3:47 AM EDTFlash Flood WarningRNKAlleghany6 hr
Apr 13, 4:06 AM EDTSevere Thunderstorm WarningRNKSurry, Wilkes, Yadkin24 min
Apr 13, 4:12 AM EDTTornado WarningRNKSurry, Yadkin33 min
Apr 13, 4:35 AM EDTSevere Thunderstorm WarningRNKRockingham, Stokes, Yadkin55 min
Apr 13, 5:19 AM EDTTornado WarningRNKRockingham26 min
Apr 13, 5:30 AM EDTSevere Thunderstorm WarningRNKCaswell, Rockingham60 min
Apr 13, 5:36 AM EDTTornado WarningRNKRockingham24 min
Apr 13, 6:02 AM EDTFlash Flood WarningRNKStokes4 hr
Apr 13, 8:31 AM EDTAreal Flood WarningRNKAshe6 hr
Apr 13, 8:47 AM EDTAreal Flood WarningRNKSurry, Wilkes6 hr
Apr 13, 9:33 AM EDTAreal Flood WarningRNKWatauga6 hr

Nearby

Tornado Warnings in North Carolina, 2020Every tornado warning in 2020Tornadoes 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.