Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 145, NWS Greenville-Spartanburg, SC

August 14, 2021Davie County, Iredell County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 14, 2021, 4:33 PM EDT for Davie County, Iredell County, Rowan County, North Carolina. It was in force for 42 min. 7 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
Aug 14, 2021, 4:33 PM EDT (20:33 UTC)
Expired
Aug 14, 2021, 5:15 PM EDT
In force
42 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Davie County, NC, Iredell County, NC, Rowan County, NC

The radar

The Roanoke radar (KFCX), 132 km from the middle of the area, began a volume at 20:36 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
Aug 14, 4:35 PM EDTTSTM WND DMG1 Wsw Turnersburg, NCEMERGENCY MNGR REPORTED TREES DOWN ON FAIRMOUNT RD
Aug 14, 4:35 PM EDTTSTM WND DMGTurnersburg, NCEMERGENCY MNGR REPORTED POWER LINES DOWN
Aug 14, 4:40 PM EDTTSTM WND DMG1 Nw Turnersburg, NCFIRE DEPT REPORTED POWERLINES DOWN ON TOMLIN MILL RD.
Aug 14, 4:45 PM EDTTSTM WND DMG2 Sw Harmony, NCNUMEROUS TREES DOWN IN THE HARMONY AND TURNERSBURG AREA. FIRE DEPARTMENT CREW SPENT HOURS CUTTING UP TREES TO GET THEM OUT OF THE ROADWAY.
Aug 14, 4:45 PM EDTTSTM WND DMG3 Wnw Turnersburg, NCFIRE DEPT REPORTED RV FLIPPED OVER ON I77 AT TOMLIN MILL RD.
Aug 14, 5:00 PM EDTTSTM WND DMG3 W Turnersburg, NCFIRE DEPT REPORTED TREES DOWN ON LENTZ RD
Aug 14, 5:00 PM EDTTSTM WND DMG5 W Turnersburg, NCEMERGENCY MNGR REPORTED A BARN WAS DESTROYED AND TREES DOWN.

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, 8.6 hours before the alert went out and 77 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 2021-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1624 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 2021-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
1624 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
954 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

927 
WUUS52 KGSP 142033
SVRGSP
NCC059-097-159-142115-
/O.NEW.KGSP.SV.W.0145.210814T2033Z-210814T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
433 PM EDT Sat Aug 14 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Western Davie County in the Piedmont of North Carolina...
  Northeastern Iredell County in the Piedmont of North Carolina...
  Northwestern Rowan County in the Piedmont of North Carolina...

* Until 515 PM EDT.

* At 433 PM EDT, a severe thunderstorm was located 8 miles northeast
  of Statesville, or 5 miles southwest of Harmony, and is nearly
  stationary.

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

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is expected. Expect wind 
           damage to trees and power lines.

* Locations impacted include...
  Statesville, Harmony, Turnersburg, Olin, Sheffield, Woodleaf, Cool
  Springs, Mocksville and Union Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and 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.

Torrential rainfall is occurring with this storm, and may lead to
minor flooding. Do not drive your vehicle through flooded roadways.

Please report damaging winds, hail, or flooding to the National
Weather Service 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 3575 8056 3577 8093 3598 8094 3605 8077
      3605 8058
TIME...MOT...LOC 2033Z 251DEG 4KT 3589 8081 

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

$$

HG
2 follow-up statements
947 
WWUS52 KGSP 142100
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
500 PM EDT Sat Aug 14 2021

NCC059-097-159-142115-
/O.CON.KGSP.SV.W.0145.000000T0000Z-210814T2115Z/
Davie NC-Iredell NC-Rowan NC-
500 PM EDT Sat Aug 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHWESTERN DAVIE...NORTHEASTERN IREDELL AND NORTHWESTERN ROWAN
COUNTIES...

At 500 PM EDT, a severe thunderstorm was located 6 miles north of
Statesville, and is nearly stationary.

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

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is expected. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Statesville, Harmony, Turnersburg, Olin, Sheffield, Cool Springs and
Union Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

Please report damaging winds, hail, or flooding to the National
Weather Service 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 8062 3575 8062 3577 8093 3598 8094
      3605 8077
TIME...MOT...LOC 2100Z 250DEG 3KT 3587 8087 

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

$$

HG
364 
WWUS52 KGSP 142112
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
512 PM EDT Sat Aug 14 2021

NCC059-097-159-142122-
/O.EXP.KGSP.SV.W.0145.000000T0000Z-210814T2115Z/
Davie NC-Iredell NC-Rowan NC-
512 PM EDT Sat Aug 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DAVIE...
NORTHEASTERN IREDELL AND NORTHWESTERN ROWAN COUNTIES WILL EXPIRE AT
515 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.

LAT...LON 3605 8062 3575 8062 3577 8093 3598 8094
      3605 8077
TIME...MOT...LOC 2112Z 251DEG 4KT 3587 8086 

$$

HG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 8:37 PM EDTSpecial Weather StatementGSPCabarrus23 min
Aug 13, 9:10 PM EDTSpecial Weather StatementGSPCabarrus35 min
Aug 13, 11:13 PM EDTSpecial Weather StatementGSPRowan32 min
Aug 13, 11:15 PM EDTSevere Thunderstorm WarningGSPDavie, Rowan45 min
Aug 13, 11:45 PM EDTSpecial Weather StatementGSPCabarrus30 min
Aug 13, 11:49 PM EDTSpecial Weather StatementGSPRowan26 min
Aug 14, 12:10 AM EDTSpecial Weather StatementGSPRowan35 min
Aug 14, 12:17 AM EDTSpecial Weather StatementGSPCabarrus28 min
Aug 14, 12:31 AM EDTAreal Flood AdvisoryGSPRowan119 min
Aug 14, 12:33 AM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan42 min
Aug 14, 1:02 AM EDTSpecial Weather StatementGSPRowan28 min
Aug 14, 1:13 AM EDTSpecial Weather StatementGSPRowan32 min
Aug 14, 1:32 AM EDTAreal Flood AdvisoryGSPCabarrus, Rowan118 min
Aug 14, 1:37 AM EDTSpecial Weather StatementGSPRowan23 min
Aug 14, 2:03 AM EDTFlash Flood WarningGSPCabarrus117 min
Aug 14, 2:17 PM EDTSpecial Weather StatementGSPLincoln28 min
Aug 14, 2:19 PM EDTSpecial Weather StatementGSPUnion26 min
Aug 14, 2:33 PM EDTSevere Thunderstorm WarningGSPMecklenburg, Union42 min
Aug 14, 2:43 PM EDTSevere Thunderstorm WarningGSPUnion47 min
Aug 14, 2:46 PM EDTSpecial Weather StatementGSPCatawba, Lincoln29 min
Aug 14, 2:53 PM EDTSevere Thunderstorm WarningGSPCatawba, Lincoln33 min
Aug 14, 3:04 PM EDTSevere Thunderstorm WarningGSPHenderson, Transylvania21 min
Aug 14, 3:13 PM EDTSevere Thunderstorm WarningGSPMecklenburg47 min
Aug 14, 3:30 PM EDTSpecial Weather StatementGSPMecklenburg30 min
Aug 14, 3:39 PM EDTSevere Thunderstorm WarningGSPMecklenburg, Union51 min
Aug 14, 4:00 PM EDTSevere Thunderstorm WarningGSPDavie, Iredell, Rowan45 min
Aug 14, 4:08 PM EDTSpecial Weather StatementGSPBurke37 min
Aug 14, 4:12 PM EDTAreal Flood AdvisoryGSPMecklenburg96 min
Aug 14, 4:22 PM EDTSevere Thunderstorm WarningGSPBuncombe, Henderson53 min
Aug 14, 4:25 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell50 min
Aug 14, 4:28 PM EDTSpecial Weather StatementGSPUnion32 min
Aug 14, 4:34 PM EDTSevere Thunderstorm WarningGSPBurke, McDowell, Rutherford41 min
Aug 14, 4:35 PM EDTSevere Thunderstorm WarningGSPMcDowell, Rutherford40 min
Aug 14, 4:45 PM EDTSpecial Weather StatementGSPTransylvania30 min
Aug 14, 4:55 PM EDTSevere Thunderstorm WarningGSPBurke, McDowell, Rutherford50 min
Aug 14, 5:01 PM EDTSpecial Weather StatementGSPBuncombe29 min
Aug 14, 5:14 PM EDTSpecial Weather StatementGSPIredell31 min
Aug 14, 5:16 PM EDTSpecial Weather StatementGSPPolk29 min
Aug 14, 5:27 PM EDTAreal Flood AdvisoryGSPCaldwell2 hr
Aug 14, 5:42 PM EDTSpecial Weather StatementGSPJackson33 min
Aug 14, 5:44 PM EDTSpecial Weather StatementGSPPolk31 min
Aug 14, 5:53 PM EDTSpecial Weather StatementGSPHenderson37 min
Aug 14, 6:02 PM EDTAreal Flood AdvisoryGSPMcDowell118 min
Aug 14, 6:20 PM EDTSpecial Weather StatementGSPSwain25 min
Aug 14, 6:51 PM EDTAreal Flood AdvisoryGSPBuncombe, McDowell, Rutherford114 min
Aug 14, 7:38 PM EDTAreal Flood AdvisoryGSPBuncombe, Henderson112 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.