Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 17, NWS Greenville-Spartanburg, SC

March 27, 2021Cabarrus County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 27, 2021, 4:17 PM EDT for Cabarrus County, Rowan County, North Carolina. It was in force for 28 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
Mar 27, 2021, 4:17 PM EDT (20:17 UTC)
Expired
Mar 27, 2021, 4:45 PM EDT
In force
28 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cabarrus County, NC, Rowan County, NC

The radar

The Greer radar (KGSP), 165 km from the middle of the area, began a volume at 20:20 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
Mar 27, 4:20 PM EDTHAIL 16 Wnw Concord, NCQUARTER SIZE HAIL.
Mar 27, 4:39 PM EDTHAIL 11 Wnw Mount Pleasant, NCQUARTER SIZE HAIL.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 27, 2:03 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.3 hours before the alert went out and 94 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 2021-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2434 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

366 
WUUS52 KGSP 272017
SVRGSP
NCC025-159-272045-
/O.NEW.KGSP.SV.W.0017.210327T2017Z-210327T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
417 PM EDT Sat Mar 27 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Cabarrus County in the Piedmont of North Carolina...
  South central Rowan County in the Piedmont of North Carolina...

* Until 445 PM EDT.

* At 417 PM EDT, a severe thunderstorm was located near Downtown
  Concord, moving east at 30 mph.

  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...
  Kannapolis, Downtown Concord, West Concord, Harrisburg, Mt
  Pleasant, Coddle Creek Reservoir, Charlotte Motor Speedway and Gold
  Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm is also producing extremely heavy rainfall. Flooding of
drainage ditches and low lying areas may occur. Small streams will
rise rapidly. Do not drive through areas where water is flowing over
the road.

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 3546 8033 3530 8043 3532 8068 3534 8069
      3535 8070 3550 8072 3553 8031
TIME...MOT...LOC 2017Z 268DEG 24KT 3541 8063 

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

RM
1 follow-up statement
170 
WWUS52 KGSP 272029
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
429 PM EDT Sat Mar 27 2021

NCC025-159-272045-
/O.CON.KGSP.SV.W.0017.000000T0000Z-210327T2045Z/
Cabarrus NC-Rowan NC-
429 PM EDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHEASTERN CABARRUS AND SOUTH CENTRAL ROWAN COUNTIES...

At 429 PM EDT, a severe thunderstorm was located near Downtown
Concord, moving east at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Public.

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

Locations impacted include...
Mt Pleasant, Gold Hill and Downtown Concord. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm is producing frequent and intense lightning. Turn off
electrical appliances. Do not use corded telephones. Do not take a
bath or shower.

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 3546 8033 3530 8043 3531 8058 3551 8058
      3553 8031
TIME...MOT...LOC 2029Z 268DEG 24KT 3541 8053 

HAIL...1.25IN
WIND...60MPH
 
$$

RM

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 12:51 AM EDTAreal Flood AdvisoryGSPRowan4 hr
Mar 27, 6:05 AM EDTRiver Flood AdvisoryGSPCleveland15 hr
Mar 27, 11:58 AM EDTSpecial Weather StatementGSPGraham, Swain62 min
Mar 27, 12:35 PM EDTSpecial Weather StatementGSPMadison55 min
Mar 27, 12:50 PM EDTFlash Flood WatchGSPAvery, Buncombe, Burke, Caldwell, Graham, Haywood and 11 more23 hr
Mar 27, 12:59 PM EDTSpecial Weather StatementGSPAvery, Mitchell, Yancey61 min
Mar 27, 1:23 PM EDTSpecial Weather StatementGSPBuncombe67 min
Mar 27, 1:30 PM EDTSevere Thunderstorm WarningGSPBuncombe45 min
Mar 27, 1:32 PM EDTSevere Thunderstorm WarningGSPDavie, Iredell, Rowan43 min
Mar 27, 1:39 PM EDTSevere Thunderstorm WarningGSPAvery, Burke, Caldwell66 min
Mar 27, 1:53 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell, McDowell55 min
Mar 27, 2:00 PM EDTSevere Thunderstorm WarningGSPBurke, Cleveland, McDowell, Rutherford45 min
Mar 27, 2:19 PM EDTSevere Thunderstorm WarningGSPAlexander, Caldwell29 min
Mar 27, 2:29 PM EDTSpecial Weather StatementGSPCleveland, Polk, Rutherford31 min
Mar 27, 2:45 PM EDTSpecial Weather StatementGSPAlexander, Catawba, Cleveland, Davie, Gaston, Iredell and 1 more45 min
Mar 27, 3:15 PM EDTSpecial Weather StatementGSPDavie, Iredell, Rowan45 min
Mar 27, 3:24 PM EDTSpecial Weather StatementGSPCleveland, Gaston, Lincoln51 min
Mar 27, 3:53 PM EDTSpecial Weather StatementGSPCabarrus, Gaston, Mecklenburg, Rowan52 min
Mar 27, 3:59 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg31 min
Mar 27, 5:04 PM EDTSpecial Weather StatementGSPUnion41 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.