Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 58, NWS Raleigh, NC

May 10, 20214 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at May 10, 2021, 9:58 PM EDT for 4 counties in North Carolina. It was in force for 60 min. 1 report 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: May 10, 2021, 9:58 PM EDT (01:58 UTC)
Expired: May 10, 2021, 10:58 PM EDT
In force: 60 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Harnett County, NC, Johnston County, NC, Sampson County, NC, Wayne County, NC

The radar

The Raleigh/Durham radar (KRAX), 59 km from the middle of the area, began a volume at 02:00 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
May 10, 9:58 PM EDT	TSTM WND DMG	1 Sse Dunn, NC	CORRECTED FOR TIME. TREE ON HOUSE ALONG SOUTH WASHINGTON ST.

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
May 10, 3:57 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 2.0 hours before the alert went out and 120 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: 394 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 1065 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 149 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

681 
WUUS52 KRAH 110158
SVRRAH
NCC085-101-163-191-110315-
/O.NEW.KRAH.SV.W.0058.210511T0158Z-210511T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
958 PM EDT Mon May 10 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Wayne County in central North Carolina...
  Northern Sampson County in central North Carolina...
  Southeastern Harnett County in central North Carolina...
  Southern Johnston County in central North Carolina...

* Until 1115 PM EDT.

* At 958 PM EDT, a severe thunderstorm was located near Dunn, or 17
  miles southeast of Lillington, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Goldsboro, Smithfield, Dunn, Mount Olive, Benson, Walnut Creek,
  Selma, Erwin, Coats and Four Oaks.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3534 7782 3528 7783 3517 7786 3516 7788
      3515 7789 3517 7793 3516 7797 3519 7802
      3518 7807 3519 7816 3509 7817 3506 7816
      3522 7862 3525 7862 3526 7871 3556 7860
      3547 7783 3543 7783 3540 7780 3538 7780
TIME...MOT...LOC 0158Z 284DEG 28KT 3530 7852 

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

77

3 follow-up statements

300 
WWUS52 KRAH 110212
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
1012 PM EDT Mon May 10 2021

NCC085-110221-
/O.CAN.KRAH.SV.W.0058.000000T0000Z-210511T0315Z/
Harnett NC-
1012 PM EDT Mon May 10 2021

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

LAT...LON 3534 7782 3517 7786 3515 7790 3517 7793
      3517 7797 3519 7802 3518 7807 3519 7816
      3509 7817 3506 7816 3521 7858 3530 7858
      3533 7853 3539 7857 3553 7838 3547 7783
      3543 7783 3540 7780 3538 7780
TIME...MOT...LOC 0211Z 282DEG 28KT 3528 7840 

$$

NCC101-163-191-110315-
/O.CON.KRAH.SV.W.0058.000000T0000Z-210511T0315Z/
Wayne NC-Sampson NC-Johnston NC-
1012 PM EDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR WAYNE...NORTHEASTERN SAMPSON AND SOUTHERN JOHNSTON COUNTIES...

At 1011 PM EDT, a severe thunderstorm was located 10 miles southeast
of Benson, or 16 miles south of Smithfield, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Goldsboro, Smithfield, Mount Olive, Benson, Walnut Creek, Selma, Four
Oaks, Pine Level, Princeton and Newton Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3534 7782 3517 7786 3515 7790 3517 7793
      3517 7797 3519 7802 3518 7807 3519 7816
      3509 7817 3506 7816 3521 7858 3530 7858
      3533 7853 3539 7857 3553 7838 3547 7783
      3543 7783 3540 7780 3538 7780
TIME...MOT...LOC 0211Z 282DEG 28KT 3528 7840 

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

77

478 
WWUS52 KRAH 110241
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
1041 PM EDT Mon May 10 2021

NCC101-110251-
/O.CAN.KRAH.SV.W.0058.000000T0000Z-210511T0315Z/
Johnston NC-
1041 PM EDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN JOHNSTON COUNTY IS
CANCELLED...

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

LAT...LON 3517 7786 3515 7790 3517 7793 3517 7797
      3519 7802 3518 7807 3519 7816 3512 7817
      3506 7816 3512 7833 3529 7830 3532 7827
      3532 7824 3539 7802 3543 7783 3541 7781
TIME...MOT...LOC 0241Z 284DEG 28KT 3525 7814 3509 7820 

$$

NCC163-191-110315-
/O.CON.KRAH.SV.W.0058.000000T0000Z-210511T0315Z/
Wayne NC-Sampson NC-
1041 PM EDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR SOUTHERN WAYNE AND NORTHEASTERN SAMPSON COUNTIES...

At 1041 PM EDT, severe thunderstorms were located along a line
extending from near Mount Olive to near Bowdens, moving east at 30
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Goldsboro, Mount Olive, Walnut Creek, Seven Springs, Mar-Mac,
Brogden, Cliffs Of The Neuse State Park, Elroy, Grantham and Hobbton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3517 7786 3515 7790 3517 7793 3517 7797
      3519 7802 3518 7807 3519 7816 3512 7817
      3506 7816 3512 7833 3529 7830 3532 7827
      3532 7824 3539 7802 3543 7783 3541 7781
TIME...MOT...LOC 0241Z 284DEG 28KT 3525 7814 3509 7820 

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

77

872 
WWUS52 KRAH 110258
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
1058 PM EDT Mon May 10 2021

NCC163-191-110308-
/O.CAN.KRAH.SV.W.0058.000000T0000Z-210511T0315Z/
Wayne NC-Sampson NC-
1058 PM EDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WAYNE AND
NORTHEASTERN SAMPSON COUNTIES IS CANCELLED...
            
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 has been cancelled.  However small hail and
gusty winds are still possible with these thunderstorms.

LAT...LON 3517 7786 3515 7790 3517 7793 3517 7797
      3519 7802 3518 7807 3519 7816 3512 7817
      3506 7816 3512 7833 3529 7830 3532 7827
      3532 7824 3539 7802 3543 7783 3541 7781
TIME...MOT...LOC 0256Z 284DEG 28KT 3522 7800 3506 7806 

$$

77

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 8:46 PM EDT	Special Weather Statement	RAH	Harnett, Lee	59 min
May 10, 9:37 PM EDT	Special Weather Statement	RAH	Johnston, Wayne	53 min
May 10, 10:05 PM EDT	Special Weather Statement	RAH	Anson, Montgomery, Richmond, Stanly	85 min
May 10, 11:36 PM EDT	Special Weather Statement	RAH	Hoke	54 min
May 10, 11:38 PM EDT	Special Weather Statement	RAH	Stanly	67 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.