Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 103, NWS Raleigh, NC

August 1, 2021Chatham County, Randolph County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 1, 2021, 2:42 PM EDT for Chatham County, Randolph County, North Carolina. It was in force for 48 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: Aug 1, 2021, 2:42 PM EDT (18:42 UTC)
Expired: Aug 1, 2021, 3:30 PM EDT
In force: 48 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Chatham County, NC, Randolph County, NC

The radar

The Raleigh/Durham radar (KRAX), 84 km from the middle of the area, began a volume at 18:46 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
Aug 1, 2:46 PM EDT	HAIL 1.5	3 Ssw Franklinville, NC	BROADCAST MEDIA SHOWS PICTURE OF PING PONG SIZED HAIL EAST OF ASHEBORO ALONG FOXFIRE ROAD. TIME ESTIMATED BY RADAR.
Aug 1, 2:50 PM EDT	TSTM WND DMG	4 Ssw Ramseur, NC	911 CALL CENTER REPORTS NUMEROUS TREES DOWN WITH SOME ON VEHICLES AND HOUSES EAST OF ASHEBORO AND SOUTH OF RAMSEUR. TIME ESTIMATED BY RADAR.
Aug 1, 2:50 PM EDT	HAIL 0.75	4 Wnw Coleridge, NC	PUBLIC REPORTS PENNY SIZED HAIL 4 MILES SOUTH OF RAMSEUR, NC.
Aug 1, 2:52 PM EDT	TSTM WND DMG	2 Sse Franklinville, NC	REPORT OF A FULL TREE DOWN ROUGHLY 2 FT. IN DIAMETER. OTHER 12 INCH DIAMETER BRANCHES DOWN ALONG ROAD AS WELL.

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
Aug 1, 12:37 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.7 hours before the alert went out and 68 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: 365 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 818 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

648 
WUUS52 KRAH 011842
SVRRAH
NCC037-151-011930-
/O.NEW.KRAH.SV.W.0103.210801T1842Z-210801T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
242 PM EDT Sun Aug 1 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Eastern Randolph County in central North Carolina...
  Southwestern Chatham County in central North Carolina...

* Until 330 PM EDT.

* At 242 PM EDT, a severe thunderstorm was located near Asheboro,
  moving southeast at 35 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...
  Asheboro, Pittsboro, Siler City, North Carolina Zoo, Goldston,
  Ramseur, Franklinville, Staley, Harpers Crossroads and Coleridge.

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.

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 3584 7975 3570 7913 3553 7927 3554 7929
      3556 7929 3555 7930 3554 7932 3553 7931
      3553 7932 3552 7935 3552 7952 3567 7982
TIME...MOT...LOC 1842Z 295DEG 30KT 3572 7971 

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

JD

2 follow-up statements

503 
WWUS52 KRAH 011914
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
314 PM EDT Sun Aug 1 2021

NCC151-011922-
/O.CAN.KRAH.SV.W.0103.000000T0000Z-210801T1930Z/
Randolph NC-
314 PM EDT Sun Aug 1 2021

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

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central North Carolina.

LAT...LON 3570 7913 3557 7924 3553 7927 3554 7929
      3555 7929 3555 7928 3556 7929 3554 7932
      3553 7931 3552 7935 3552 7952 3554 7956
      3579 7954
TIME...MOT...LOC 1912Z 298DEG 29KT 3560 7945 

$$

NCC037-011930-
/O.CON.KRAH.SV.W.0103.000000T0000Z-210801T1930Z/
Chatham NC-
314 PM EDT Sun Aug 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTHWESTERN CHATHAM COUNTY...

At 312 PM EDT, a severe thunderstorm was located near Goldston, or 8
miles south of Siler City, moving southeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated. The storm also has a history of producing 
         extensive wind damage just east of Asheboro and south of 
         Ramseur.

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

Locations impacted include...
Pittsboro, Siler City, Goldston, Harpers Crossroads and Hasty. 

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.

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 3570 7913 3557 7924 3553 7927 3554 7929
      3555 7929 3555 7928 3556 7929 3554 7932
      3553 7931 3552 7935 3552 7952 3554 7956
      3579 7954
TIME...MOT...LOC 1912Z 298DEG 29KT 3560 7945 

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

JD

763 
WWUS52 KRAH 011931
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
331 PM EDT Sun Aug 1 2021

NCC037-011940-
/O.EXP.KRAH.SV.W.0103.000000T0000Z-210801T1930Z/
Chatham NC-
331 PM EDT Sun Aug 1 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CHATHAM COUNTY
HAS EXPIRED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central North Carolina.

LAT...LON 3570 7913 3557 7924 3553 7927 3554 7929
      3555 7929 3555 7928 3556 7929 3554 7932
      3553 7931 3552 7935 3552 7952 3554 7956
      3579 7954
TIME...MOT...LOC 1930Z 295DEG 30KT 3554 7929 

$$

JD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 5:33 AM EDT	Special Weather Statement	RAH	Guilford	57 min
Aug 1, 5:51 AM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford, Randolph	39 min
Aug 1, 6:27 AM EDT	Special Weather Statement	RAH	Alamance, Guilford	63 min
Aug 1, 7:10 AM EDT	Severe Thunderstorm Warning	RAH	Alamance, Durham, Orange	50 min
Aug 1, 7:13 AM EDT	Special Weather Statement	RAH	Person	47 min
Aug 1, 8:00 AM EDT	Special Weather Statement	RAH	Granville	45 min
Aug 1, 8:05 AM EDT	Special Weather Statement	RAH	Vance	55 min
Aug 1, 12:56 PM EDT	Special Weather Statement	RAH	Edgecombe, Nash, Wilson	64 min
Aug 1, 1:08 PM EDT	Special Weather Statement	RAH	Forsyth	52 min
Aug 1, 1:12 PM EDT	Special Weather Statement	RAH	Johnston	48 min
Aug 1, 1:22 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Johnston, Nash, Wake, Wayne, Wilson	38 min
Aug 1, 1:31 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Sampson, Wayne	44 min
Aug 1, 2:00 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wayne, Wilson	45 min
Aug 1, 2:07 PM EDT	Special Weather Statement	RAH	Chatham, Randolph	53 min
Aug 1, 2:15 PM EDT	Severe Thunderstorm Warning	RAH	Wayne	30 min
Aug 1, 3:03 PM EDT	Special Weather Statement	RAH	Anson, Hoke, Richmond, Scotland	57 min
Aug 1, 3:18 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Hoke, Richmond, Scotland	42 min
Aug 1, 3:51 PM EDT	Special Weather Statement	RAH	Sampson	54 min
Aug 1, 3:51 PM EDT	Special Weather Statement	RAH	Cumberland	54 min
Aug 1, 4:00 PM EDT	Tornado Warning	RAH	Cumberland	30 min
Aug 1, 4:28 PM EDT	Special Weather Statement	RAH	Johnston	62 min
Aug 1, 4:53 PM EDT	Special Weather Statement	RAH	Sampson	67 min
Aug 1, 5:09 PM EDT	Special Weather Statement	RAH	Sampson	36 min
Aug 1, 5:28 PM EDT	Special Weather Statement	RAH	Wayne	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.