Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 19, NWS Raleigh, NC

March 27, 20214 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Mar 27, 2021, 4:26 PM EDT for 4 counties in North Carolina. It was in force for 64 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: Mar 27, 2021, 4:26 PM EDT (20:26 UTC)
Expired: Mar 27, 2021, 5:30 PM EDT
In force: 64 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Alamance County, NC, Chatham County, NC, Davidson County, NC, Randolph County, NC

The radar

The Raleigh/Durham radar (KRAX), 100 km from the middle of the area, began a volume at 20:27 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
Mar 27, 4:38 PM EDT	HAIL 1	3 Nw Ulah, NC	TRAINED SPOTTER ESTIMATED 1 INCH HAIL 5 MILES SOUTHWEST OF ASHEBORO.

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
Mar 27, 2:03 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.4 hours before the alert went out and 48 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2434 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

379 
WUUS52 KRAH 272026
SVRRAH
NCC001-037-057-151-272130-
/O.NEW.KRAH.SV.W.0019.210327T2026Z-210327T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
426 PM EDT Sat Mar 27 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Southern Alamance County in central North Carolina...
  Southeastern Davidson County in central North Carolina...
  Randolph County in central North Carolina...
  Western Chatham County in central North Carolina...

* Until 530 PM EDT.

* At 426 PM EDT, severe thunderstorms were located along a line
  extending from near High Point to 8 miles west of Asheboro to 9
  miles north of Badin Lake, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  High Point, Asheboro, Randleman, Pittsboro, North Carolina Zoo,
  Siler City, Goldston, Seagrove, Archdale and Liberty.

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 3576 8002 3592 7998 3590 7954 3591 7953
      3591 7926 3588 7926 3586 7920 3570 7917
      3555 7928 3556 7929 3552 7934 3551 8017
      3554 8020
TIME...MOT...LOC 2026Z 276DEG 34KT 3588 7996 3575 7996 3560 8012 

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

26

4 follow-up statements

812 
WWUS52 KRAH 272047
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
447 PM EDT Sat Mar 27 2021

NCC057-272056-
/O.CAN.KRAH.SV.W.0019.000000T0000Z-210327T2130Z/
Davidson NC-
447 PM EDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DAVIDSON COUNTY
IS CANCELLED...

The storms which prompted the warning have 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 3558 8006 3563 7988 3591 7977 3590 7954
      3591 7953 3591 7926 3588 7926 3586 7920
      3570 7917 3555 7928 3556 7929 3552 7934
      3551 8007
TIME...MOT...LOC 2046Z 270DEG 34KT 3587 7976 3574 7976 3559 7992 

$$

NCC001-037-151-272130-
/O.CON.KRAH.SV.W.0019.000000T0000Z-210327T2130Z/
Alamance NC-Randolph NC-Chatham NC-
447 PM EDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTHERN ALAMANCE...RANDOLPH AND WESTERN CHATHAM COUNTIES...

At 446 PM EDT, severe thunderstorms were located along a line
extending from near Randleman to near Asheboro to 8 miles northwest
of Seagrove, moving east at 40 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Asheboro, Randleman, Pittsboro, North Carolina Zoo, Siler City,
Goldston, Seagrove, Liberty, Ramseur and Franklinville.

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 3558 8006 3563 7988 3591 7977 3590 7954
      3591 7953 3591 7926 3588 7926 3586 7920
      3570 7917 3555 7928 3556 7929 3552 7934
      3551 8007
TIME...MOT...LOC 2046Z 270DEG 34KT 3587 7976 3574 7976 3559 7992 

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

26

723 
WWUS52 KRAH 272058
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
458 PM EDT Sat Mar 27 2021

NCC001-037-151-272130-
/O.CON.KRAH.SV.W.0019.000000T0000Z-210327T2130Z/
Alamance NC-Randolph NC-Chatham NC-
458 PM EDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTHERN ALAMANCE...SOUTHERN RANDOLPH AND WESTERN CHATHAM
COUNTIES...

At 458 PM EDT, a severe thunderstorm was located 9 miles east of
North Carolina Zoo, moving east at 50 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...
Pittsboro, Siler City, Goldston, Seagrove, Liberty, Staley, Snow
Camp, Harpers Crossroads, Coleridge and Hasty.

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 3555 8006 3562 7964 3590 7957 3590 7953
      3591 7953 3591 7926 3588 7926 3586 7920
      3570 7917 3555 7928 3556 7929 3552 7934
      3551 8007
TIME...MOT...LOC 2058Z 272DEG 43KT 3562 7959 

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

26

100 
WWUS52 KRAH 272107
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
507 PM EDT Sat Mar 27 2021

NCC001-151-272116-
/O.CAN.KRAH.SV.W.0019.000000T0000Z-210327T2130Z/
Alamance NC-Randolph NC-
507 PM EDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ALAMANCE AND SOUTHERN
RANDOLPH COUNTIES 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 3586 7920 3570 7917 3555 7928 3556 7929
      3554 7931 3554 7932 3553 7932 3552 7934
      3552 7955 3584 7954 3584 7924 3585 7924
      3586 7925
TIME...MOT...LOC 2106Z 276DEG 34KT 3561 7949 

$$

NCC037-272130-
/O.CON.KRAH.SV.W.0019.000000T0000Z-210327T2130Z/
Chatham NC-
507 PM EDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR WESTERN CHATHAM COUNTY...

At 506 PM EDT, a severe thunderstorm was located 7 miles south of
Siler City, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

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

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.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Raleigh.

&&

LAT...LON 3586 7920 3570 7917 3555 7928 3556 7929
      3554 7931 3554 7932 3553 7932 3552 7934
      3552 7955 3584 7954 3584 7924 3585 7924
      3586 7925
TIME...MOT...LOC 2106Z 276DEG 34KT 3561 7949 

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

26

335 
WWUS52 KRAH 272126
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
526 PM EDT Sat Mar 27 2021

NCC037-272136-
/O.EXP.KRAH.SV.W.0019.000000T0000Z-210327T2130Z/
Chatham NC-
526 PM EDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CHATHAM COUNTY WILL
EXPIRE AT 530 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.  However, heavy 
rain is still possible with this thunderstorm.

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

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Raleigh.

LAT...LON 3586 7920 3570 7917 3555 7928 3556 7929
      3554 7931 3554 7932 3553 7932 3552 7934
      3552 7955 3584 7954 3584 7924 3585 7924
      3586 7925
TIME...MOT...LOC 2126Z 276DEG 34KT 3559 7930 

$$

26

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 27, 6:39 AM EDT	Dense Fog Advisory	RAH	Anson, Chatham, Cumberland, Durham, Edgecombe, Franklin and 20 more	3 hr
Mar 27, 1:43 PM EDT	Special Weather Statement	RAH	Forsyth	62 min
Mar 27, 1:58 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth	47 min
Mar 27, 2:31 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Guilford, Randolph	59 min
Mar 27, 3:17 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Guilford, Orange, Randolph	43 min
Mar 27, 3:25 PM EDT	Special Weather Statement	RAH	Davidson, Forsyth, Guilford	65 min
Mar 27, 3:51 PM EDT	Special Weather Statement	RAH	Person	54 min
Mar 27, 3:54 PM EDT	Special Weather Statement	RAH	Montgomery, Moore, Stanly	66 min
Mar 27, 4:00 PM EDT	Special Weather Statement	RAH	Durham, Granville, Orange	60 min
Mar 27, 4:12 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Montgomery, Moore, Randolph	48 min
Mar 27, 4:19 PM EDT	Tornado Warning	RAH	Lee, Montgomery, Moore	41 min
Mar 27, 4:29 PM EDT	Severe Thunderstorm Warning	RAH	Montgomery, Stanly	46 min
Mar 27, 4:42 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Durham, Franklin, Granville, Wake	48 min
Mar 27, 4:45 PM EDT	Special Weather Statement	RAH	Granville, Vance, Warren	60 min
Mar 27, 4:57 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Lee, Moore	48 min
Mar 27, 5:07 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Montgomery, Moore, Richmond, Stanly	38 min
Mar 27, 5:13 PM EDT	Tornado Warning	RAH	Johnston, Nash, Wake, Wilson	47 min
Mar 27, 5:42 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Johnston, Lee, Moore, Sampson and 1 more	48 min
Mar 27, 6:00 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Nash, Wilson	45 min
Mar 27, 6:23 PM EDT	Special Weather Statement	RAH	Anson, Cumberland, Harnett, Hoke, Richmond, Scotland	37 min
Mar 27, 6:24 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wayne, Wilson	51 min
Mar 27, 6:36 PM EDT	Tornado Warning	RAH	Johnston, Wayne	54 min
Mar 27, 6:51 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	54 min
Mar 27, 6:57 PM EDT	Special Weather Statement	RAH	Cumberland	48 min
Mar 27, 7:06 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	69 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.