Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 89, NWS Raleigh, NC

July 18, 2021Granville County, Vance County, Warren County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 18, 2021, 6:51 PM EDT for Granville County, Vance County, Warren County, North Carolina. It was in force for 39 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 18, 2021, 6:51 PM EDT (22:51 UTC)
Expired: Jul 18, 2021, 7:30 PM EDT
In force: 39 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Raleigh/Durham radar (KRAX), 87 km from the middle of the area, began a volume at 22:54 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

Roanoke, VA (KRNK), launched 12:00Z, 10.9 hours before the alert went out and 137 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: 63 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 848 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -78 m²/s²
0-3 km storm-relative helicity: -38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

731 
WUUS52 KRAH 182251
SVRRAH
NCC077-181-185-182330-
/O.NEW.KRAH.SV.W.0089.210718T2251Z-210718T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
651 PM EDT Sun Jul 18 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 730 PM EDT.

* At 651 PM EDT, a severe thunderstorm was located 10 miles southeast
  of Clarksville, or 12 miles north of Henderson, moving east at 20
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Straight line winds can blow down trees, power lines, and damage
mobile homes and other buildings. Seek shelter in a sturdy structure
until the storm has passed. Stay away from windows as flying debris
generated by damaging winds can be deadly.


&&

LAT...LON 3634 7812 3638 7857 3654 7857 3654 7810
TIME...MOT...LOC 2251Z 271DEG 15KT 3649 7849 

HAIL...<.75IN
WIND...60MPH
 
$$

7

3 follow-up statements

599 
WWUS52 KRAH 182307
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
707 PM EDT Sun Jul 18 2021

NCC077-182317-
/O.CAN.KRAH.SV.W.0089.000000T0000Z-210718T2330Z/
Granville NC-
707 PM EDT Sun Jul 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GRANVILLE COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3634 7812 3637 7851 3646 7851 3650 7850
      3651 7850 3652 7847 3653 7847 3653 7846
      3654 7845 3654 7810
TIME...MOT...LOC 2307Z 275DEG 19KT 3655 7839 3646 7836 3636 7840 

$$

NCC181-185-182330-
/O.CON.KRAH.SV.W.0089.000000T0000Z-210718T2330Z/
Vance NC-Warren NC-
707 PM EDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHERN VANCE AND NORTHWESTERN WARREN COUNTIES...

At 707 PM EDT, severe thunderstorms were located along a line
extending from 7 miles south of Boydton to 8 miles west of Norlina to
near Henderson, moving east at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Straight line winds can blow down trees, power lines, and damage
mobile homes and other buildings. Seek shelter in a sturdy structure
until the storm has passed. Stay away from windows as flying debris
generated by damaging winds can be deadly.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3634 7812 3637 7851 3646 7851 3650 7850
      3651 7850 3652 7847 3653 7847 3653 7846
      3654 7845 3654 7810
TIME...MOT...LOC 2307Z 275DEG 19KT 3655 7839 3646 7836 3636 7840 

HAIL...<.75IN
WIND...60MPH
 
$$

7

299 
WWUS52 KRAH 182318
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
718 PM EDT Sun Jul 18 2021

NCC181-185-182330-
/O.CON.KRAH.SV.W.0089.000000T0000Z-210718T2330Z/
Vance NC-Warren NC-
718 PM EDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHERN VANCE AND NORTHWESTERN WARREN COUNTIES...

At 718 PM EDT, severe thunderstorms were located along a line
extending from 10 miles south of Boydton to 6 miles west of Norlina
to near Henderson, moving east at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Warrenton, Norlina, Middleburg, 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.

Straight line winds can blow down trees, power lines, and damage
mobile homes and other buildings. Seek shelter in a sturdy structure
until the storm has passed. Stay away from windows as flying debris
generated by damaging winds can be deadly.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3634 7812 3637 7851 3643 7851 3646 7841
      3654 7839 3654 7810
TIME...MOT...LOC 2318Z 272DEG 15KT 3653 7833 3645 7831 3637 7838 

HAIL...<.75IN
WIND...60MPH
 
$$

7

693 
WWUS52 KRAH 182326
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
726 PM EDT Sun Jul 18 2021

NCC181-185-182335-
/O.EXP.KRAH.SV.W.0089.000000T0000Z-210718T2330Z/
Vance NC-Warren NC-
726 PM EDT Sun Jul 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN VANCE AND
NORTHWESTERN WARREN COUNTIES WILL EXPIRE AT 730 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Raleigh.

LAT...LON 3634 7812 3637 7851 3643 7851 3646 7841
      3654 7839 3654 7810
TIME...MOT...LOC 2325Z 271DEG 15KT 3653 7829 3645 7827 3637 7834 

$$

7

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:01 PM EDT	Special Weather Statement	RAH	Forsyth	29 min
Jul 17, 8:10 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth	50 min
Jul 17, 8:49 PM EDT	Severe Thunderstorm Warning	RAH	Forsyth, Guilford	23 min
Jul 17, 9:04 PM EDT	Areal Flood Advisory	RAH	Forsyth, Guilford	46 min
Jul 17, 9:15 PM EDT	Special Weather Statement	RAH	Davidson	30 min
Jul 17, 9:26 PM EDT	Areal Flood Advisory	RAH	Davidson, Forsyth, Guilford	77 min
Jul 17, 9:40 PM EDT	Special Weather Statement	RAH	Guilford	35 min
Jul 17, 9:55 PM EDT	Special Weather Statement	RAH	Person	65 min
Jul 17, 9:59 PM EDT	Severe Thunderstorm Warning	RAH	Granville, Person	46 min
Jul 17, 10:48 PM EDT	Special Weather Statement	RAH	Granville, Vance, Warren	42 min
Jul 18, 5:46 PM EDT	Special Weather Statement	RAH	Cumberland, Hoke, Sampson, Wayne	59 min
Jul 18, 5:54 PM EDT	Special Weather Statement	RAH	Forsyth, Guilford	66 min
Jul 18, 5:58 PM EDT	Special Weather Statement	RAH	Vance, Warren	62 min
Jul 18, 6:29 PM EDT	Special Weather Statement	RAH	Vance, Warren	61 min
Jul 18, 6:31 PM EDT	Special Weather Statement	RAH	Cumberland, Harnett, Hoke, Johnston, Lee, Montgomery and 4 more	59 min
Jul 18, 6:35 PM EDT	Special Weather Statement	RAH	Durham	40 min
Jul 18, 7:35 PM EDT	Special Weather Statement	RAH	Chatham, Davidson, Lee, Moore, Randolph	55 min
Jul 18, 7:51 PM EDT	Special Weather Statement	RAH	Halifax	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.