Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 130, NWS Raleigh, NC

October 25, 20214 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Oct 25, 2021, 7:27 PM EDT for 4 counties in North Carolina. It was in force for 48 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: Oct 25, 2021, 7:27 PM EDT (23:27 UTC)
Expired: Oct 25, 2021, 8:15 PM EDT
In force: 48 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Davidson County, NC, Forsyth County, NC, Guilford County, NC, Randolph County, NC

The radar

The Roanoke radar (KFCX), 127 km from the middle of the area, began a volume at 23:26 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
Oct 25, 6:26 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.5 hours before the alert went out and 43 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: 98 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 837 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: -45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

853 
WUUS52 KRAH 252327
SVRRAH
NCC057-067-081-151-260015-
/O.NEW.KRAH.SV.W.0130.211025T2327Z-211026T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
727 PM EDT Mon Oct 25 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Southeastern Forsyth County in central North Carolina...
  Davidson County in central North Carolina...
  Northern Randolph County in central North Carolina...
  Guilford County in central North Carolina...

* Until 815 PM EDT.

* At 726 PM EDT, a severe thunderstorm was located near Kernersville,
  or near High Point, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Greensboro, Winston-Salem, High Point, Asheboro, Lexington,
  Randleman, Thomasville, Kernersville, Clemmons and Bermuda Run.

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. Stay away from windows.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 3583 8043 3585 8042 3584 8039 3586 8039
      3588 8042 3589 8037 3596 8038 3599 8042
      3600 8042 3612 8011 3617 7954 3577 7955
      3574 8046 3577 8045 3579 8048 3581 8047
      3583 8049
TIME...MOT...LOC 2326Z 265DEG 35KT 3604 8004 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

10

2 follow-up statements

789 
WWUS52 KRAH 252343
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
743 PM EDT Mon Oct 25 2021

NCC067-252353-
/O.CAN.KRAH.SV.W.0130.000000T0000Z-211026T0015Z/
Forsyth NC-
743 PM EDT Mon Oct 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FORSYTH 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 100 AM EDT for
central North Carolina.

LAT...LON 3584 8038 3593 8031 3600 8021 3603 8021
      3601 8004 3605 8004 3609 7993 3614 7989
      3617 7954 3577 7955 3574 8038
TIME...MOT...LOC 2343Z 265DEG 35KT 3605 7983 

$$

NCC057-081-151-260015-
/O.CON.KRAH.SV.W.0130.000000T0000Z-211026T0015Z/
Davidson NC-Randolph NC-Guilford NC-
743 PM EDT Mon Oct 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR NORTHEASTERN DAVIDSON...NORTHERN RANDOLPH AND GUILFORD
COUNTIES...

At 743 PM EDT, a severe thunderstorm was located over Greensboro,
moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Greensboro, High Point, Asheboro, Lexington, Randleman, Thomasville,
McLeansville, Linwood, Archdale and Trinity.

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. Stay away from windows.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 3584 8038 3593 8031 3600 8021 3603 8021
      3601 8004 3605 8004 3609 7993 3614 7989
      3617 7954 3577 7955 3574 8038
TIME...MOT...LOC 2343Z 265DEG 35KT 3605 7983 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

10

117 
WWUS52 KRAH 260001
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
801 PM EDT Mon Oct 25 2021

NCC057-260010-
/O.CAN.KRAH.SV.W.0130.000000T0000Z-211026T0015Z/
Davidson NC-
801 PM EDT Mon Oct 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DAVIDSON 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 100 AM EDT for
central North Carolina.

LAT...LON 3594 8005 3603 7984 3616 7968 3617 7954
      3577 7955 3575 8006
TIME...MOT...LOC 0000Z 265DEG 35KT 3606 7962 

$$

NCC081-151-260015-
/O.CON.KRAH.SV.W.0130.000000T0000Z-211026T0015Z/
Randolph NC-Guilford NC-
801 PM EDT Mon Oct 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR NORTHERN RANDOLPH AND SOUTHERN GUILFORD COUNTIES...

At 800 PM EDT, a severe thunderstorm was located near McLeansville,
or 9 miles west of Burlington, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Greensboro, High Point, Asheboro, Randleman, McLeansville, Archdale,
Trinity, Gibsonville, Pleasant Garden and Liberty.

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.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 3594 8005 3603 7984 3616 7968 3617 7954
      3577 7955 3575 8006
TIME...MOT...LOC 0000Z 265DEG 35KT 3606 7962 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

10

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 25, 8:45 AM EDT	Special Weather Statement	RAH	Moore	45 min
Oct 25, 10:27 AM EDT	Special Weather Statement	RAH	Wake	48 min
Oct 25, 6:35 PM EDT	Special Weather Statement	RAH	Forsyth, Guilford	55 min
Oct 25, 6:57 PM EDT	Severe Thunderstorm Warning	RAH	Forsyth, Guilford	48 min
Oct 25, 7:05 PM EDT	Tornado Warning	RAH	Guilford	25 min
Oct 25, 7:42 PM EDT	Severe Thunderstorm Warning	RAH	Alamance	33 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.