Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 37, NWS Raleigh, NC

April 9, 2021Harnett County, Johnston County, Wake County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Apr 9, 2021, 4:29 PM EDT for Harnett County, Johnston County, Wake County, North Carolina. It was in force for 46 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, 4:29 PM EDT (20:29 UTC)
Expired: Apr 9, 2021, 5:15 PM EDT
In force: 46 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Harnett County, NC, Johnston County, NC, Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 35 km from the middle of the area, began a volume at 20:30 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, 4:36 PM EDT	HAIL 1	5 E Seminole, NC	REPORT OF 1.00 INCH HAIL AT RAVEN ROCK STATE PARK.
Apr 9, 5:11 PM EDT	HAIL 1.75	Angier, NC	PUBLIC REPORTS GOLF BALL SIZE HAIL IN THE TOWN OF ANGIER.
Apr 9, 5:13 PM EDT	HAIL 1	1 Ssw Coats Crossroads, NC	PUBLIC REPORTS 1.00 INCH HAIL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.5 hours before the alert went out and 116 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: 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

Open this sounding in Storm Lab

The text

As transmitted.

762 
WUUS52 KRAH 092029
SVRRAH
NCC085-101-183-092115-
/O.NEW.KRAH.SV.W.0037.210409T2029Z-210409T2115Z/

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

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Northeastern Harnett County in central North Carolina...
  Southwestern Wake County in central North Carolina...
  West central Johnston County in central North Carolina...

* Until 515 PM EDT.

* At 429 PM EDT, a severe thunderstorm was located 9 miles southwest
  of Fuquay-Varina, or 10 miles northwest of Lillington, 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...
  Fuquay-Varina, Angier, Holly Springs, Seminole, Raven Rock State
  Park and Duncan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3548 7901 3566 7884 3560 7861 3544 7851
      3541 7898
TIME...MOT...LOC 2029Z 256DEG 11KT 3551 7893 

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

10

2 follow-up statements

575 
WWUS52 KRAH 092042
SVSRAH

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

NCC085-101-183-092115-
/O.CON.KRAH.SV.W.0037.000000T0000Z-210409T2115Z/
Harnett NC-Wake NC-Johnston NC-
442 PM EDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHEASTERN HARNETT...SOUTHWESTERN WAKE AND WEST CENTRAL
JOHNSTON COUNTIES...

At 441 PM EDT, a severe thunderstorm was located near Fuquay-Varina,
or 9 miles northwest of Lillington, moving east at 15 mph.

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

SOURCE...Park rangers. At 4:36pm, 1 inch hail was reported at Raven 
         Rock State Park by a park ranger.

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

Locations impacted include...
Fuquay-Varina, Angier, Holly Springs, Seminole, Raven Rock State Park
and Duncan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3548 7901 3566 7884 3560 7861 3544 7851
      3541 7898
TIME...MOT...LOC 2041Z 256DEG 11KT 3552 7888 

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

Green

180 
WWUS52 KRAH 092054
SVSRAH

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

NCC085-101-183-092115-
/O.CON.KRAH.SV.W.0037.000000T0000Z-210409T2115Z/
Harnett NC-Wake NC-Johnston NC-
454 PM EDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHEASTERN HARNETT...SOUTH CENTRAL WAKE AND WEST CENTRAL
JOHNSTON COUNTIES...

At 453 PM EDT, a severe thunderstorm was located near Angier, or near
Lillington, moving east at 10 mph.

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

SOURCE...Park rangers. At 4:36pm, 1 inch hail was reported at Raven 
         Rock State Park by a park ranger.

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

Locations impacted include...
Fuquay-Varina, Angier and Raven Rock State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3551 7895 3559 7882 3560 7861 3544 7851
      3541 7891
TIME...MOT...LOC 2053Z 261DEG 10KT 3548 7884 

HAIL...1.00IN
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, 4:44 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, 5:12 PM EDT	Severe Thunderstorm Warning	RAH	Granville, Vance, Warren	63 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.