Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 40, NWS Raleigh, NC

April 9, 2021Granville County, Vance County, Warren County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Apr 9, 2021, 5:12 PM EDT for Granville County, Vance County, Warren County, North Carolina. It was in force for 63 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 9, 2021, 5:12 PM EDT (21:12 UTC)
Expired: Apr 9, 2021, 6:15 PM EDT
In force: 63 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Granville County, NC, Vance County, NC, Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 93 km from the middle of the area, began a volume at 21:11 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.

Issued	Product	Office	Lasted
Apr 9, 3:38 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 9.2 hours before the alert went out and 131 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 132 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 654 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

839 
WUUS52 KRAH 092112
SVRRAH
NCC077-181-185-092215-
/O.NEW.KRAH.SV.W.0040.210409T2112Z-210409T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
512 PM EDT Fri Apr 9 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Northern Vance County in central North Carolina...
  Northwestern Warren County in central North Carolina...
  Northeastern Granville County in central North Carolina...

* Until 615 PM EDT.

* At 510 PM EDT, a severe thunderstorm was located 8 miles south of
  Clarksville, or 13 miles north of Oxford, moving east at 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Middleburg, Tungsten, Satterwhite Point Marina, Drewry, Steele 
  Creek Marina & Campground, Bullocksville, Kerr Lake .

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including large hail, damaging winds and tornadoes. 

If on or near Kerr Lake, get away from the water and move indoors or 
inside a vehicle. Move to safe shelter now!  Do not be caught on the 
water in a thunderstorm.

&&

LAT...LON 3654 7814 3632 7825 3646 7860 3654 7859
      3655 7826
TIME...MOT...LOC 2110Z 280DEG 14KT 3650 7852 

HAIL...1.00IN
WIND...60MPH
 
$$

10

2 follow-up statements

056 
WWUS52 KRAH 092129
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
529 PM EDT Fri Apr 9 2021

NCC077-092139-
/O.CAN.KRAH.SV.W.0040.000000T0000Z-210409T2215Z/
Granville NC-
529 PM EDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GRANVILLE COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. **! Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight EDT for
central North Carolina.

LAT...LON 3654 7814 3632 7825 3643 7851 3646 7851
      3650 7850 3651 7850 3652 7847 3653 7847
      3653 7846 3654 7845 3654 7844 3655 7821
TIME...MOT...LOC 2129Z 274DEG 13KT 3652 7845 

$$

NCC181-185-092215-
/O.CON.KRAH.SV.W.0040.000000T0000Z-210409T2215Z/
Vance NC-Warren NC-
529 PM EDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR NORTHERN VANCE AND NORTHWESTERN WARREN COUNTIES...

At 529 PM EDT, a severe thunderstorm was located 9 miles southeast of
Clarksville, or 13 miles north of Henderson, moving east at 15 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Norlina, Middleburg, Tungsten, Satterwhite Point Marina, Drewry,
Steele Creek Marina & Campground, Bullocksville, Kerr Lake, Wise and
John H Kerr Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

If on or near Kerr Lake, get away from the water and move indoors or 
inside a vehicle. remember, lightning can strike out to 15 miles 
from the parent thunderstorm. If you can hear thunder, you are close 
enough to be struck by lightning. Move to safe shelter now!  Do not 
be caught on the water in a thunderstorm.

&&

LAT...LON 3654 7814 3632 7825 3643 7851 3646 7851
      3650 7850 3651 7850 3652 7847 3653 7847
      3653 7846 3654 7845 3654 7844 3655 7821
TIME...MOT...LOC 2129Z 274DEG 13KT 3652 7845 

HAIL...1.25IN
WIND...60MPH
 
$$

Green

956 
WWUS52 KRAH 092152
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
552 PM EDT Fri Apr 9 2021

NCC181-092202-
/O.CAN.KRAH.SV.W.0040.000000T0000Z-210409T2215Z/
Vance NC-
552 PM EDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN VANCE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight EDT for
central North Carolina.

LAT...LON 3654 7814 3641 7821 3642 7830 3654 7832
      3655 7818
TIME...MOT...LOC 2152Z 275DEG 17KT 3649 7828 

$$

NCC185-092215-
/O.CON.KRAH.SV.W.0040.000000T0000Z-210409T2215Z/
Warren NC-
552 PM EDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR NORTHWESTERN WARREN COUNTY...

At 552 PM EDT, a severe thunderstorm was located near Norlina, or 8
miles northwest of Warrenton, moving east at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Norlina, Drewry and Wise. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

If on or near Kerr Lake, get away from the water and move indoors or 
inside a vehicle. remember, lightning can strike out to 15 miles 
from the parent thunderstorm. If you can hear thunder, you are close 
enough to be struck by lightning. Move to safe shelter now!  Do not 
be caught on the water in a thunderstorm.

&&

LAT...LON 3654 7814 3641 7821 3642 7830 3654 7832
      3655 7818
TIME...MOT...LOC 2152Z 275DEG 17KT 3649 7828 

HAIL...1.25IN
WIND...60MPH
 
$$

Green

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 3:02 PM EDT	Special Weather Statement	RAH	Scotland	58 min
Apr 9, 3:38 PM EDT	Special Weather Statement	RAH	Lee	67 min
Apr 9, 3:41 PM EDT	Special Weather Statement	RAH	Hoke, Richmond, Scotland	64 min
Apr 9, 3:57 PM EDT	Severe Thunderstorm Warning	RAH	Hoke, Moore, Richmond, Scotland	22 min
Apr 9, 4:10 PM EDT	Severe Thunderstorm Warning	RAH	Granville, Person	50 min
Apr 9, 4:29 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Wake	46 min
Apr 9, 4:44 PM EDT	Severe Thunderstorm Warning	RAH	Granville	46 min
Apr 9, 4:49 PM EDT	Special Weather Statement	RAH	Scotland	56 min
Apr 9, 4:53 PM EDT	Areal Flood Advisory	RAH	Scotland	112 min
Apr 9, 5:09 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Wake	51 min
Apr 9, 5:23 PM EDT	Areal Flood Advisory	RAH	Harnett, Johnston, Wake	3 hr
Apr 9, 5:23 PM EDT	Special Weather Statement	RAH	Moore, Richmond	67 min
Apr 9, 5:42 PM EDT	Tornado Warning	RAH	Person	35 min
Apr 9, 5:59 PM EDT	Severe Thunderstorm Warning	RAH	Warren	46 min
Apr 9, 6:03 PM EDT	Special Weather Statement	RAH	Johnston	42 min
Apr 9, 6:21 PM EDT	Special Weather Statement	RAH	Warren	54 min
Apr 9, 6:35 PM EDT	Severe Thunderstorm Warning	RAH	Halifax	40 min
Apr 9, 6:55 PM EDT	Special Weather Statement	RAH	Person, Vance	65 min
Apr 9, 7:20 PM EDT	Special Weather Statement	RAH	Durham, Granville	55 min
Apr 9, 7:21 PM EDT	Special Weather Statement	RAH	Davidson	54 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021 Every severe thunderstorm warning 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.