Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 69, NWS Raleigh, NC

June 9, 20215 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jun 9, 2021, 6:37 PM EDT for 5 counties in North Carolina. It was in force for 38 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
Jun 9, 2021, 6:37 PM EDT (22:37 UTC)
Expired
Jun 9, 2021, 7:15 PM EDT
In force
38 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Franklin County, NC, Granville County, NC, Vance County, NC, Wake County, NC, Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 57 km from the middle of the area, began a volume at 22:40 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, 10.6 hours before the alert went out and 127 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 2021-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 234 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 2021-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
234 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1021 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

604 
WUUS52 KRAH 092237
SVRRAH
NCC069-077-181-183-185-092315-
/O.NEW.KRAH.SV.W.0069.210609T2237Z-210609T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
637 PM EDT Wed Jun 9 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Southern Vance County in central North Carolina...
  Southwestern Warren County in central North Carolina...
  Southern Granville County in central North Carolina...
  Northeastern Wake County in central North Carolina...
  Franklin County in central North Carolina...

* Until 715 PM EDT.

* At 636 PM EDT, a severe thunderstorm was located near Kittrell, or
  near Oxford, moving southeast at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Henderson, Oxford, Louisburg, Wake Forest, Franklinton, Kittrell,
  Rolesville, Youngsville, Middleburg and Ingleside.

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 as flying debris
generated by damaging winds can be deadly.

Continuous cloud to ground lightning is occurring with this storm. 
Move indoors immediately. Lightning is one of nature's leading 
killers. Remember, if you can hear thunder, you are close enough to 
be struck by lightning.

&&

LAT...LON 3627 7874 3641 7829 3603 7812 3589 7856
TIME...MOT...LOC 2236Z 334DEG 26KT 3626 7851 

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

GIH
2 follow-up statements
560 
WWUS52 KRAH 092259
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
659 PM EDT Wed Jun 9 2021

NCC185-092308-
/O.CAN.KRAH.SV.W.0069.000000T0000Z-210609T2315Z/
Warren NC-
659 PM EDT Wed Jun 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WARREN COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3630 7828 3627 7831 3626 7823 3625 7822
      3603 7812 3589 7856 3616 7868 3632 7828
TIME...MOT...LOC 2258Z 340DEG 13KT 3617 7847 

$$

NCC069-077-181-183-092315-
/O.CON.KRAH.SV.W.0069.000000T0000Z-210609T2315Z/
Vance NC-Granville NC-Wake NC-Franklin NC-
659 PM EDT Wed Jun 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHERN VANCE...SOUTHEASTERN GRANVILLE...NORTHEASTERN WAKE AND
FRANKLIN COUNTIES...

At 658 PM EDT, a severe thunderstorm was located near Kittrell, or 10
miles south of Henderson, moving south at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Louisburg, Wake Forest, Franklinton, Kittrell, Rolesville,
Youngsville, Ingleside, Purnell, Gillburg and Falls Lake.

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 as flying debris
generated by damaging winds can be deadly.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3630 7828 3627 7831 3626 7823 3625 7822
      3603 7812 3589 7856 3616 7868 3632 7828
TIME...MOT...LOC 2258Z 340DEG 13KT 3617 7847 

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

GIH
232 
WWUS52 KRAH 092308
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
708 PM EDT Wed Jun 9 2021

NCC069-077-181-183-092317-
/O.EXP.KRAH.SV.W.0069.000000T0000Z-210609T2315Z/
Vance NC-Granville NC-Wake NC-Franklin NC-
708 PM EDT Wed Jun 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN VANCE...SOUTHEASTERN
GRANVILLE...NORTHEASTERN WAKE AND FRANKLIN COUNTIES WILL EXPIRE AT
715 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, gusty 
winds and heavy rain are still possible with this thunderstorm as it 
moves to the southeast through Franklin county through 730 pm.

LAT...LON 3630 7828 3627 7831 3626 7823 3625 7822
      3603 7812 3589 7856 3616 7868 3632 7828
TIME...MOT...LOC 2307Z 334DEG 26KT 3612 7844 

$$

GIH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 5:11 PM EDTSpecial Weather StatementRAHVance64 min
Jun 9, 5:46 PM EDTSpecial Weather StatementRAHGranville59 min
Jun 9, 6:07 PM EDTSpecial Weather StatementRAHVance53 min
Jun 9, 6:57 PM EDTSpecial Weather StatementRAHJohnston, Wayne48 min
Jun 9, 7:04 PM EDTSpecial Weather StatementRAHGranville41 min
Jun 9, 7:34 PM EDTSpecial Weather StatementRAHJohnston41 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.