Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 127, NWS Raleigh, NC

September 8, 2021Franklin County, Halifax County, Warren County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Sep 8, 2021, 5:50 PM EDT for Franklin County, Halifax County, Warren County, North Carolina. It was in force for 40 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
Sep 8, 2021, 5:50 PM EDT (21:50 UTC)
Expired
Sep 8, 2021, 6:30 PM EDT
In force
40 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Franklin County, NC, Halifax County, NC, Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 88 km from the middle of the area, began a volume at 21:53 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

Roanoke, VA (KRNK), launched 12:00Z, 9.8 hours before the alert went out and 167 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, Roanoke, VA at 12:00Z on 2021-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 216 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, Roanoke, VA at 12:00Z on 2021-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.193958Sfc1 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
216 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
875 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

169 
WUUS52 KRAH 082150
SVRRAH
NCC069-083-185-082230-
/O.NEW.KRAH.SV.W.0127.210908T2150Z-210908T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
550 PM EDT Wed Sep 8 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Warren County in central North Carolina...
  Northwestern Halifax County in central North Carolina...
  Northeastern Franklin County in central North Carolina...

* Until 630 PM EDT.

* At 549 PM EDT, a severe thunderstorm was located 9 miles northeast
  of Louisburg, moving northeast at 20 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...
  Roanoke Rapids, Warrenton, Littleton, Weldon, Macon, Centerville,
  Ingleside, Medoc Mountain State Park, Afton and Lake Gaston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3652 7790 3651 7790 3650 7783 3642 7757
      3618 7795 3619 7797 3618 7798 3620 7801
      3610 7808 3607 7812 3617 7832 3654 7813
      3655 7797
TIME...MOT...LOC 2149Z 223DEG 18KT 3617 7816 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GIH
2 follow-up statements
248 
WWUS52 KRAH 082207
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
607 PM EDT Wed Sep 8 2021

NCC069-083-185-082230-
/O.CON.KRAH.SV.W.0127.000000T0000Z-210908T2230Z/
Warren NC-Halifax NC-Franklin NC-
607 PM EDT Wed Sep 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR WARREN...NORTHWESTERN HALIFAX AND NORTHEASTERN FRANKLIN
COUNTIES...

At 607 PM EDT, a severe thunderstorm was located 9 miles northeast of
Louisburg, moving northeast at 25 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...
Roanoke Rapids, Warrenton, Littleton, Weldon, Macon, Centerville,
Ingleside, Medoc Mountain State Park, Afton and Lake Gaston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3652 7790 3651 7790 3650 7783 3642 7757
      3618 7795 3619 7797 3618 7798 3620 7801
      3610 7808 3607 7812 3617 7832 3654 7813
      3655 7797
TIME...MOT...LOC 2207Z 212DEG 24KT 3619 7818 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GIH
354 
WWUS52 KRAH 082235
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
635 PM EDT Wed Sep 8 2021

NCC069-083-185-082245-
/O.EXP.KRAH.SV.W.0127.000000T0000Z-210908T2230Z/
Warren NC-Halifax NC-Franklin NC-
635 PM EDT Wed Sep 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR WARREN...NORTHWESTERN HALIFAX
AND NORTHEASTERN FRANKLIN COUNTIES HAS EXPIRED...
                
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 allowed to expire. However gusty 
winds up to 45 mph are still possible with this thunderstorm.

LAT...LON 3652 7790 3651 7790 3650 7783 3642 7757
      3618 7795 3619 7797 3618 7798 3620 7801
      3610 7808 3607 7812 3617 7832 3654 7813
      3655 7797
TIME...MOT...LOC 2235Z 223DEG 18KT 3628 7807 

$$
GIH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 8:26 AM EDTSpecial Weather StatementRAHDavidson, Stanly64 min
Sep 8, 9:27 AM EDTSpecial Weather StatementRAHForsyth, Guilford63 min
Sep 8, 2:51 PM EDTSpecial Weather StatementRAHStanly54 min
Sep 8, 3:11 PM EDTSpecial Weather StatementRAHWarren49 min
Sep 8, 3:56 PM EDTSpecial Weather StatementRAHMontgomery, Randolph49 min
Sep 8, 3:58 PM EDTSpecial Weather StatementRAHWarren47 min
Sep 8, 4:49 PM EDTSpecial Weather StatementRAHAlamance, Randolph56 min
Sep 8, 4:50 PM EDTSpecial Weather StatementRAHWarren40 min
Sep 8, 5:19 PM EDTSpecial Weather StatementRAHWarren56 min
Sep 8, 5:20 PM EDTSpecial Weather StatementRAHCumberland55 min
Sep 8, 5:29 PM EDTSpecial Weather StatementRAHHoke, Richmond, Scotland61 min
Sep 8, 5:34 PM EDTSevere Thunderstorm WarningRAHCumberland, Harnett, Sampson41 min
Sep 8, 6:11 PM EDTAreal Flood AdvisoryRAHAnson, Richmond3 hr
Sep 8, 6:12 PM EDTSevere Thunderstorm WarningRAHHarnett, Johnston, Sampson, Wayne37 min
Sep 8, 6:19 PM EDTSpecial Weather StatementRAHLee, Moore56 min
Sep 8, 6:27 PM EDTAreal Flood AdvisoryRAHFranklin, Warren3 hr
Sep 8, 6:28 PM EDTSpecial Weather StatementRAHVance62 min
Sep 8, 7:07 PM EDTSpecial Weather StatementRAHWarren38 min
Sep 8, 7:17 PM EDTSpecial Weather StatementRAHWake58 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.