Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 90, NWS Raleigh, NC

July 28, 2021Harnett County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 28, 2021, 3:02 PM EDT for Harnett County, North Carolina. It was in force for 43 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 28, 2021, 3:02 PM EDT (19:02 UTC)
Expired: Jul 28, 2021, 3:45 PM EDT
In force: 43 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Harnett County, NC

The radar

The Raleigh/Durham radar (KRAX), 47 km from the middle of the area, began a volume at 19:04 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
Jul 28, 2:19 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.0 hours before the alert went out and 110 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: 1406 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 998 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

654 
WUUS52 KRAH 281902
SVRRAH
NCC085-281945-
/O.NEW.KRAH.SV.W.0090.210728T1902Z-210728T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
302 PM EDT Wed Jul 28 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Central Harnett County in central North Carolina...

* Until 345 PM EDT.

* At 302 PM EDT, a severe thunderstorm was located 7 miles northwest
  of Lillington, moving southwest at 5 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Lillington, Broadway, Raven Rock State Park and Seminole. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3544 7906 3554 7896 3555 7894 3547 7878
      3532 7888
TIME...MOT...LOC 1902Z 049DEG 6KT 3547 7893 

HAIL...0.75IN
WIND...60MPH
 
$$

Kren

2 follow-up statements

094 
WWUS52 KRAH 281919
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
319 PM EDT Wed Jul 28 2021

NCC085-281945-
/O.CON.KRAH.SV.W.0090.000000T0000Z-210728T1945Z/
Harnett NC-
319 PM EDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL HARNETT COUNTY...

At 317 PM EDT, a severe thunderstorm was located 8 miles northwest of
Lillington, moving southwest at 5 mph.

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

SOURCE...Radar indicated. At 258 pm, power lines were reported down 
         southwest of Fuquay-Varina.

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

Locations impacted include...
Lillington, Seminole 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 3544 7906 3548 7896 3542 7881 3532 7888
TIME...MOT...LOC 1917Z 049DEG 6KT 3545 7895 

HAIL...0.75IN
WIND...60MPH
 
$$

Kren

964 
WWUS52 KRAH 281938
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
338 PM EDT Wed Jul 28 2021

NCC085-281948-
/O.EXP.KRAH.SV.W.0090.000000T0000Z-210728T1945Z/
Harnett NC-
338 PM EDT Wed Jul 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HARNETT COUNTY WILL
EXPIRE AT 345 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central North Carolina.

Remember, a Severe Thunderstorm Warning still remains in effect for 
northern Harnett County.

LAT...LON 3544 7906 3548 7896 3542 7881 3532 7888
TIME...MOT...LOC 1938Z 049DEG 6KT 3543 7898 

$$

Kren

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 2:32 PM EDT	Special Weather Statement	RAH	Harnett	28 min
Jul 28, 3:36 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Harnett, Lee, Wake	39 min
Jul 28, 4:42 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Nash, Wake, Wayne, Wilson	63 min
Jul 28, 5:06 PM EDT	Special Weather Statement	RAH	Scotland	54 min
Jul 28, 5:43 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Wilson	47 min
Jul 28, 5:45 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Hoke, Sampson	45 min
Jul 28, 6:27 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	27 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.