Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 73, NWS Raleigh, NC

July 1, 20218 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 1, 2021, 9:38 PM EDT for 8 counties in North Carolina. It was in force for 52 min. 4 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: Jul 1, 2021, 9:38 PM EDT (01:38 UTC)
Expired: Jul 1, 2021, 10:30 PM EDT
In force: 52 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Chatham County, NC, Cumberland County, NC, Durham County, NC, Harnett County, NC, Johnston County, NC, Lee County, NC, Sampson County, NC, Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 33 km from the middle of the area, began a volume at 01:41 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
Jul 1, 9:43 PM EDT	TSTM WND DMG	3 Nw Angier, NC	TREE REPORTED DOWN NEAR THE INTERSECTION OF FIELDCREST LN AND PARKER MILL TRAIL.
Jul 1, 9:45 PM EDT	TSTM WND DMG	1 Nw Apex, NC	TREES DOWN ON A HOUSE ON PEARSON STREET IN APEX. TIME ESTIMATED BY RADAR.
Jul 1, 9:52 PM EDT	TSTM WND DMG	6 Wnw Coats Crossroads, NC	A TREE FELL DOWN ON POWER LINES NEAR THE INTERSECTION OF JACKSON-KING RD AND WHITE MEMORIAL CHURCH RD.
Jul 1, 10:06 PM EDT	TSTM WND GST 48	2 N Rdu International, NC	ASOS STATION KRDU RALEIGH DURHAM.

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 00:00Z, 1.6 hours before the alert went out and 107 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: 541 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1416 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

396 
WUUS52 KRAH 020138
SVRRAH
NCC037-051-063-085-101-105-163-183-020230-
/O.NEW.KRAH.SV.W.0073.210702T0138Z-210702T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
938 PM EDT Thu Jul 1 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Northwestern Sampson County in central North Carolina...
  Harnett County in central North Carolina...
  Northwestern Cumberland County in central North Carolina...
  Northeastern Lee County in central North Carolina...
  Wake County in central North Carolina...
  Johnston County in central North Carolina...
  Eastern Chatham County in central North Carolina...
  Southern Durham County in central North Carolina...

* Until 1030 PM EDT.

* At 937 PM EDT, severe thunderstorms were located along a line
  extending from 10 miles southwest of Cary to near Lillington to
  Fayetteville, moving northeast at 60 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Raleigh, Durham, Fayetteville, Cary, Smithfield, Lillington, Fort
  Bragg, Garner, Fuquay-Varina and Clayton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive deadly lightning and very heavy rain are also occurring. 
For your protection move to an interior room on the lowest floor of 
a building.

&&

LAT...LON 3533 7894 3582 7917 3586 7907 3586 7902
      3589 7901 3597 7881 3578 7830 3526 7830
      3509 7900
TIME...MOT...LOC 0137Z 220DEG 53KT 3571 7897 3541 7878 3507 7888 

HAIL...0.88IN
WIND...60MPH
 
$$

GIH

1 follow-up statement

266 
WWUS52 KRAH 020219
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
1019 PM EDT Thu Jul 1 2021

NCC037-105-020228-
/O.CAN.KRAH.SV.W.0073.000000T0000Z-210702T0230Z/
Lee NC-Chatham NC-
1019 PM EDT Thu Jul 1 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LEE AND EASTERN
CHATHAM COUNTIES IS CANCELLED...

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

LAT...LON 3537 7885 3554 7886 3586 7890 3595 7887
      3597 7881 3578 7830 3526 7830 3518 7894
TIME...MOT...LOC 0218Z 220DEG 53KT 3617 7849 3587 7830 3553 7840 

$$

NCC051-063-085-101-163-183-020230-
/O.CON.KRAH.SV.W.0073.000000T0000Z-210702T0230Z/
Sampson NC-Harnett NC-Cumberland NC-Wake NC-Johnston NC-Durham NC-
1019 PM EDT Thu Jul 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR NORTHWESTERN SAMPSON...EASTERN HARNETT...NORTH CENTRAL
CUMBERLAND...WAKE...JOHNSTON AND SOUTHEASTERN DURHAM COUNTIES...

At 1018 PM EDT, severe thunderstorms were located along a line
extending from near Kittrell to near Zebulon to near Smithfield,
moving northeast at 60 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Raleigh, Cary, Smithfield, Lillington, Garner, Fuquay-Varina,
Clayton, Dunn, Angier and Benson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3537 7885 3554 7886 3586 7890 3595 7887
      3597 7881 3578 7830 3526 7830 3518 7894
TIME...MOT...LOC 0218Z 220DEG 53KT 3617 7849 3587 7830 3553 7840 

HAIL...0.88IN
WIND...60MPH
 
$$

GIH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 8:24 PM EDT	Special Weather Statement	RAH	Moore, Scotland	51 min
Jul 1, 8:40 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Hoke, Lee, Moore, Richmond, Scotland	50 min
Jul 1, 9:09 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Hoke, Lee, Moore, Wake	51 min
Jul 1, 9:26 PM EDT	Special Weather Statement	RAH	Davidson	34 min
Jul 1, 10:01 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Franklin, Granville, Vance, Wake	44 min
Jul 1, 10:33 PM EDT	Special Weather Statement	RAH	Guilford	42 min
Jul 1, 10:35 PM EDT	Special Weather Statement	RAH	Cumberland, Johnston, Sampson, Wayne, Wilson	55 min
Jul 1, 10:42 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Granville, Vance, Warren	48 min
Jul 1, 11:00 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Forsyth, Guilford	3 hr
Jul 2, 9:05 AM EDT	Special Weather Statement	RAH	Wayne	25 min
Jul 2, 9:34 AM EDT	Areal Flood Advisory	RAH	Wilson	116 min
Jul 2, 10:58 AM EDT	Special Weather Statement	RAH	Sampson	32 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.