Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 72, NWS Greenville-Spartanburg, SC

July 26, 2021Alexander County, Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 26, 2021, 2:33 PM EDT for Alexander County, Iredell County, North Carolina. It was in force for 42 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
Jul 26, 2021, 2:33 PM EDT (18:33 UTC)
Expired
Jul 26, 2021, 3:15 PM EDT
In force
42 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Alexander County, NC, Iredell County, NC

The radar

The Roanoke radar (KFCX), 128 km from the middle of the area, began a volume at 18:34 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

TimeReportWhereRemark
Jul 26, 2:45 PM EDTTSTM WND DMGUnion Grove, NC911 CALL CENTER REPORTED TREES DOWN ON HOWARDS BRIDGE RD
Jul 26, 3:00 PM EDTTSTM WND DMG3 Ssw Turnersburg, NC911 CALL CENTER REPORTED TREES DOWN ON DUNLAP GATE RD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.6 hours before the alert went out and 88 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 2021-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 401 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 2021-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
401 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
925 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

287 
WUUS52 KGSP 261833
SVRGSP
NCC003-097-261915-
/O.NEW.KGSP.SV.W.0072.210726T1833Z-210726T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
233 PM EDT Mon Jul 26 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Northeastern Alexander County in the Piedmont of North Carolina...
  Northern Iredell County in the Piedmont of North Carolina...

* Until 315 PM EDT.

* At 232 PM EDT, a severe thunderstorm was located 12 miles south of
  Ronda, or near Love Valley, moving southeast at 10 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Stony Point, Harmony, Love Valley, Turnersburg, Olin, Union Grove
  and Cool Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.

&&

LAT...LON 3605 8070 3605 8069 3590 8070 3588 8071
      3585 8072 3586 8105 3601 8109 3603 8107
      3603 8106 3604 8104 3606 8098
TIME...MOT...LOC 1832Z 311DEG 8KT 3604 8095 

HAIL...0.75IN
WIND...60MPH
 
$$

ARK
2 follow-up statements
097 
WWUS52 KGSP 261853
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
253 PM EDT Mon Jul 26 2021

NCC003-261903-
/O.CAN.KGSP.SV.W.0072.000000T0000Z-210726T1915Z/
Alexander NC-
253 PM EDT Mon Jul 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ALEXANDER 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 3589 8093 3602 8078 3597 8070 3590 8070
      3588 8071 3585 8072 3586 8090
TIME...MOT...LOC 1853Z 315DEG 26KT 3590 8079 

$$

NCC097-261915-
/O.CON.KGSP.SV.W.0072.000000T0000Z-210726T1915Z/
Iredell NC-
253 PM EDT Mon Jul 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR NORTHEASTERN IREDELL COUNTY...

At 253 PM EDT, a severe thunderstorm was located 9 miles northeast of
Statesville, or near Harmony, moving southeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Harmony, Turnersburg, Olin and Cool Springs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.

&&

LAT...LON 3589 8093 3602 8078 3597 8070 3590 8070
      3588 8071 3585 8072 3586 8090
TIME...MOT...LOC 1853Z 315DEG 26KT 3590 8079 

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

ARK
762 
WWUS52 KGSP 261905
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
305 PM EDT Mon Jul 26 2021

NCC097-261915-
/O.EXP.KGSP.SV.W.0072.000000T0000Z-210726T1915Z/
Iredell NC-
305 PM EDT Mon Jul 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN IREDELL COUNTY
WILL EXPIRE AT 315 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.

If you observed large hail or wind damage, please report it to the
National Weather Service Greenville-Spartanburg by calling toll free,
1, 800, 2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet
it using hashtag nwsgsp. Your message should describe the event and
the specific location where it occurred.

LAT...LON 3589 8093 3602 8078 3597 8070 3590 8070
      3588 8071 3585 8072 3586 8090
TIME...MOT...LOC 1905Z 311DEG 8KT 3589 8078 

$$

ARK

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 25, 8:00 PM EDTFlash Flood WarningGSPJackson79 min
Jul 25, 9:29 PM EDTAreal Flood AdvisoryGSPBurke, McDowell47 min
Jul 26, 1:22 PM EDTSpecial Weather StatementGSPCaldwell, McDowell23 min
Jul 26, 1:45 PM EDTSpecial Weather StatementGSPBurke, Caldwell45 min
Jul 26, 2:08 PM EDTAreal Flood AdvisoryGSPBurke3 hr
Jul 26, 2:22 PM EDTSpecial Weather StatementGSPAlexander23 min
Jul 26, 2:36 PM EDTSpecial Weather StatementGSPBurke24 min
Jul 26, 3:01 PM EDTSpecial Weather StatementGSPBurke29 min
Jul 26, 3:06 PM EDTAreal Flood AdvisoryGSPMacon3 hr
Jul 26, 3:08 PM EDTSpecial Weather StatementGSPDavie, Iredell52 min
Jul 26, 3:26 PM EDTSevere Thunderstorm WarningGSPCleveland, Lincoln, Rutherford49 min
Jul 26, 3:28 PM EDTSevere Thunderstorm WarningGSPCatawba, Iredell, Rowan47 min
Jul 26, 3:55 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston50 min
Jul 26, 3:58 PM EDTSpecial Weather StatementGSPPolk32 min
Jul 26, 4:09 PM EDTSpecial Weather StatementGSPMecklenburg36 min
Jul 26, 4:33 PM EDTSevere Thunderstorm WarningGSPGaston20 min
Jul 26, 5:10 PM EDTAreal Flood AdvisoryGSPMecklenburg3 hr
Jul 26, 5:45 PM EDTSevere Thunderstorm WarningGSPMecklenburg30 min
Jul 26, 6:03 PM EDTAreal Flood AdvisoryGSPGaston, Mecklenburg3 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.