Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 129, NWS Raleigh, NC

October 25, 2021Forsyth County, Guilford County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Oct 25, 2021, 6:57 PM EDT for Forsyth County, Guilford County, North Carolina. It was in force for 48 min. 2 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: Oct 25, 2021, 6:57 PM EDT (22:57 UTC)
Expired: Oct 25, 2021, 7:45 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 Forsyth County, NC, Guilford County, NC

The radar

The Roanoke radar (KFCX), 103 km from the middle of the area, began a volume at 23:00 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
Oct 25, 7:02 PM EDT	TSTM WND DMG	3 Nnw Colfax, NC	ONE TREE DOWN ON BETHEL CHURCH ROAD NEAR DURANGO DRIVE NEAR KERNERSVILLE.
Oct 25, 7:05 PM EDT	TSTM WND DMG	1 Ese Kernersville, NC	TREE AND POWER LINES REPORTED DOWN ON DUNLAP AVENUE NEAR KERNERSVILLE.

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
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, 11.0 hours before the alert went out and 16 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.

967 
WUUS52 KRAH 252257
SVRRAH
NCC067-081-252345-
/O.NEW.KRAH.SV.W.0129.211025T2257Z-211025T2345Z/

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

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Eastern Forsyth County in central North Carolina...
  Northern Guilford County in central North Carolina...

* Until 745 PM EDT.

* At 656 PM EDT, a severe thunderstorm was located near Kernersville,
  or 9 miles southeast of Walnut Cove, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Greensboro, Kernersville, Summerfield, Stokesdale, Walkertown, Haw
  River State Park, Lake Jeanette Marina, Monticello, Belews Creek
  and Lake Townsend Marina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3624 7953 3616 7954 3603 8014 3626 8019
TIME...MOT...LOC 2256Z 253DEG 38KT 3619 8001 

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

$$

Kren

3 follow-up statements

537 
WWUS52 KRAH 252307
SVSRAH

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

NCC067-252317-
/O.CAN.KRAH.SV.W.0129.000000T0000Z-211025T2345Z/
Forsyth NC-
707 PM EDT Mon Oct 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN 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 3624 7953 3616 7954 3605 8004 3626 8004
TIME...MOT...LOC 2307Z 251DEG 44KT 3621 7988 

$$

NCC081-252345-
/O.CON.KRAH.SV.W.0129.000000T0000Z-211025T2345Z/
Guilford NC-
707 PM EDT Mon Oct 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHERN GUILFORD COUNTY...

At 707 PM EDT, a severe thunderstorm was located 7 miles south of
Bethany, or 9 miles north of Greensboro, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Greensboro, Summerfield, Stokesdale, Haw River State Park, Lake
Townsend Marina, Lake Townsend, Lake Jeanette Marina, Monticello,
Lake Brandt and Colfax.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3624 7953 3616 7954 3605 8004 3626 8004
TIME...MOT...LOC 2307Z 251DEG 44KT 3621 7988 

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

$$

Kren

421 
WWUS52 KRAH 252316
SVSRAH

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

NCC081-252345-
/O.CON.KRAH.SV.W.0129.000000T0000Z-211025T2345Z/
Guilford NC-
716 PM EDT Mon Oct 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHERN GUILFORD COUNTY...

At 715 PM EDT, a severe thunderstorm was located near Monroeton, or 8
miles north of Greensboro, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Greensboro, Summerfield, Stokesdale, Haw River State Park, Lake
Townsend Marina, Lake Townsend, Lake Jeanette Marina, Monticello and
Lake Brandt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3624 7953 3616 7954 3607 7993 3626 7998
TIME...MOT...LOC 2315Z 253DEG 37KT 3620 7979 

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

$$

Kren

620 
WWUS52 KRAH 252330
SVSRAH

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

NCC081-252345-
/O.CON.KRAH.SV.W.0129.000000T0000Z-211025T2345Z/
Guilford NC-
730 PM EDT Mon Oct 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN GUILFORD COUNTY...

At 730 PM EDT, a severe thunderstorm was located 7 miles north of
McLeansville, or 9 miles south of Reidsville, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Greensboro, Haw River State Park, Monticello, Lake Townsend Marina
and Lake Townsend.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3616 7955 3613 7977 3625 7982 3624 7956
      3624 7953 3616 7954
TIME...MOT...LOC 2330Z 257DEG 42KT 3621 7962 

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

$$

Kren

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, 7:05 PM EDT	Tornado Warning	RAH	Guilford	25 min
Oct 25, 7:27 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford, Randolph	48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.