Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 57, NWS Raleigh, NC

May 10, 2021Franklin County, Nash County, Wake County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at May 10, 2021, 6:14 PM EDT for Franklin County, Nash County, Wake County, North Carolina. It was in force for 46 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
May 10, 2021, 6:14 PM EDT (22:14 UTC)
Expired
May 10, 2021, 7:00 PM EDT
In force
46 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Franklin County, NC, Nash County, NC, Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 34 km from the middle of the area, began a volume at 22:16 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.

IssuedProductOfficeLasted
May 10, 3:57 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.2 hours before the alert went out and 156 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 2021-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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 2021-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 square meters per square second.1939587897Sfc1 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
28 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
1031 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

663 
WUUS52 KRAH 102214
SVRRAH
NCC069-127-183-102300-
/O.NEW.KRAH.SV.W.0057.210510T2214Z-210510T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
614 PM EDT Mon May 10 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Southwestern Nash County in central North Carolina...
  East central Wake County in central North Carolina...
  South central Franklin County in central North Carolina...

* Until 700 PM EDT.

* At 613 PM EDT, a severe thunderstorm was located near Bunn, or 11
  miles south of Louisburg, moving east 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...
  Nashville, Zebulon, Bailey, Bunn, Spring Hope, Middlesex and Pilot.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3599 7797 3581 7797 3575 7814 3577 7825
      3579 7824 3582 7826 3579 7831 3585 7845
      3601 7835
TIME...MOT...LOC 2213Z 287DEG 21KT 3594 7834 

HAIL...1.00IN
WIND...60MPH
 
$$

10
3 follow-up statements
882 
WWUS52 KRAH 102235
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
635 PM EDT Mon May 10 2021

NCC183-102244-
/O.CAN.KRAH.SV.W.0057.000000T0000Z-210510T2300Z/
Wake NC-
635 PM EDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WAKE 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 1000 PM EDT for
central North Carolina.

LAT...LON 3599 7797 3581 7797 3575 7814 3577 7825
      3578 7825 3579 7824 3582 7826 3583 7826
      3587 7828 3589 7830 3596 7827
TIME...MOT...LOC 2234Z 287DEG 21KT 3590 7819 

$$

NCC069-127-102300-
/O.CON.KRAH.SV.W.0057.000000T0000Z-210510T2300Z/
Nash NC-Franklin NC-
635 PM EDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHWESTERN NASH AND SOUTH CENTRAL FRANKLIN COUNTIES...

At 634 PM EDT, a severe thunderstorm was located near Bunn, or 14
miles west of Nashville, moving east 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...
Nashville, Bailey, Bunn, Spring Hope, Middlesex and Pilot. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3599 7797 3581 7797 3575 7814 3577 7825
      3578 7825 3579 7824 3582 7826 3583 7826
      3587 7828 3589 7830 3596 7827
TIME...MOT...LOC 2234Z 287DEG 21KT 3590 7819 

HAIL...1.00IN
WIND...60MPH
 
$$

10
783 
WWUS52 KRAH 102241
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
641 PM EDT Mon May 10 2021

NCC069-102251-
/O.CAN.KRAH.SV.W.0057.000000T0000Z-210510T2300Z/
Franklin NC-
641 PM EDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL FRANKLIN 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 1000 PM EDT for
central North Carolina.

LAT...LON 3596 7797 3581 7797 3579 7803 3575 7814
      3579 7824 3582 7826 3597 7816
TIME...MOT...LOC 2241Z 296DEG 23KT 3586 7817 

$$

NCC127-102300-
/O.CON.KRAH.SV.W.0057.000000T0000Z-210510T2300Z/
Nash NC-
641 PM EDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHWESTERN NASH COUNTY...

At 641 PM EDT, a severe thunderstorm was located near Bailey, or 14
miles southwest of Nashville, moving southeast 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...
Bailey, Spring Hope and Middlesex. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3596 7797 3581 7797 3579 7803 3575 7814
      3579 7824 3582 7826 3597 7816
TIME...MOT...LOC 2241Z 296DEG 23KT 3586 7817 

HAIL...1.00IN
WIND...60MPH
 
$$

10
990 
WWUS52 KRAH 102258
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
658 PM EDT Mon May 10 2021

NCC127-102308-
/O.EXP.KRAH.SV.W.0057.000000T0000Z-210510T2300Z/
Nash NC-
658 PM EDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NASH COUNTY WILL
EXPIRE AT 700 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 heavy rain
is still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
central North Carolina.

LAT...LON 3596 7797 3581 7797 3579 7803 3575 7814
      3579 7824 3582 7826 3597 7816
TIME...MOT...LOC 2258Z 287DEG 21KT 3583 7807 

$$

10

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 2:21 PM EDTSpecial Weather StatementRAHForsyth54 min
May 10, 2:57 PM EDTSpecial Weather StatementRAHForsyth, Guilford48 min
May 10, 3:19 PM EDTSevere Thunderstorm WarningRAHForsyth, Guilford41 min
May 10, 3:26 PM EDTSpecial Weather StatementRAHDavidson49 min
May 10, 3:47 PM EDTSevere Thunderstorm WarningRAHAlamance, Chatham, Guilford, Randolph43 min
May 10, 4:02 PM EDTSevere Thunderstorm WarningRAHDavidson, Forsyth, Guilford, Randolph43 min
May 10, 4:11 PM EDTSpecial Weather StatementRAHDurham, Orange49 min
May 10, 4:32 PM EDTSpecial Weather StatementRAHAlamance, Chatham43 min
May 10, 4:37 PM EDTSevere Thunderstorm WarningRAHAlamance, Chatham, Durham, Lee, Orange38 min
May 10, 4:45 PM EDTTornado WarningRAHAlamance, Chatham, Orange30 min
May 10, 5:00 PM EDTSpecial Weather StatementRAHDurham60 min
May 10, 5:14 PM EDTSevere Thunderstorm WarningRAHChatham, Durham, Harnett, Orange, Wake46 min
May 10, 5:26 PM EDTSpecial Weather StatementRAHRandolph34 min
May 10, 5:47 PM EDTSpecial Weather StatementRAHChatham, Lee43 min
May 10, 5:57 PM EDTSpecial Weather StatementRAHJohnston, Wake48 min
May 10, 5:57 PM EDTSpecial Weather StatementRAHFranklin, Nash63 min
May 10, 6:36 PM EDTSpecial Weather StatementRAHHarnett39 min
May 10, 7:21 PM EDTSpecial Weather StatementRAHDavidson, Randolph54 min
May 10, 7:41 PM EDTSpecial Weather StatementRAHMontgomery64 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.