Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 125, NWS Raleigh, NC

August 26, 2021Forsyth County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 26, 2021, 4:37 PM EDT for Forsyth County, North Carolina. It was in force for 27 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
Aug 26, 2021, 4:37 PM EDT (20:37 UTC)
Expired
Aug 26, 2021, 5:04 PM EDT
In force
27 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Forsyth County, NC

The radar

The Roanoke radar (KFCX), 89 km from the middle of the area, began a volume at 20:39 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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.6 hours before the alert went out and 33 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2021-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 929 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2021-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
929 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
973 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

437 
WUUS52 KRAH 262037
SVRRAH
NCC067-262115-
/O.NEW.KRAH.SV.W.0125.210826T2037Z-210826T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
437 PM EDT Thu Aug 26 2021

The National Weather Service in Raleigh has issued a

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

* Until 515 PM EDT.

* At 436 PM EDT, a severe thunderstorm was located near Germanton, or
  near Walnut Cove, moving north at 10 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Public. At 435pm, a spotter reported several trees and 
           power lines down 3 miles north of Walkertown.

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

* Locations impacted include...
  Walkertown, Rural Hall, Stanleyville, Belews Creek and Belews Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3626 8038 3626 8004 3622 8004 3616 8006
      3619 8042
TIME...MOT...LOC 2036Z 176DEG 7KT 3625 8019 

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

$$

Kren
3 follow-up statements
252 
WWUS52 KRAH 262047
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
447 PM EDT Thu Aug 26 2021

NCC067-262115-
/O.CON.KRAH.SV.W.0125.000000T0000Z-210826T2115Z/
Forsyth NC-
447 PM EDT Thu Aug 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHERN FORSYTH COUNTY...

At 446 PM EDT, a severe thunderstorm was located over Germanton, or
near Walnut Cove, and is nearly stationary.

HAZARD...60 mph wind gusts.

SOURCE...Public. At 442 pm, the Forsyth 911 Center reported power 
         lines down near the 3900 block of Grubbs Rd.

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

Locations impacted include...
Walkertown, Rural Hall, Stanleyville, Belews Creek and Belews Lake. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3626 8038 3626 8004 3622 8004 3616 8006
      3619 8042
TIME...MOT...LOC 2046Z 131DEG 1KT 3625 8022 

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

$$

Kren
761 
WWUS52 KRAH 262055
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
455 PM EDT Thu Aug 26 2021

NCC067-262115-
/O.CON.KRAH.SV.W.0125.000000T0000Z-210826T2115Z/
Forsyth NC-
455 PM EDT Thu Aug 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHEASTERN FORSYTH COUNTY...

At 455 PM EDT, a severe thunderstorm was located over Germanton, or
near Walnut Cove, moving north at 10 mph.

HAZARD...60 mph wind gusts.

SOURCE...Public.

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

Locations impacted include...
Rural Hall, Belews Creek, Belews Lake and Stanleyville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3622 8004 3622 8021 3624 8035 3626 8038
      3626 8004
TIME...MOT...LOC 2055Z 176DEG 7KT 3627 8022 

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

$$

Kren
432 
WWUS52 KRAH 262104
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
504 PM EDT Thu Aug 26 2021

NCC067-262114-
/O.CAN.KRAH.SV.W.0125.000000T0000Z-210826T2115Z/
Forsyth NC-
504 PM EDT Thu Aug 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FORSYTH COUNTY IS
CANCELLED...
                
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 has been cancelled.

LAT...LON 3622 8004 3622 8021 3624 8035 3626 8038
      3626 8004
TIME...MOT...LOC 2100Z 176DEG 7KT 3629 8022 

$$

Kren

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 3:28 PM EDTSpecial Weather StatementRAHForsyth, Guilford62 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021Every 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.