Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 150, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 15, 2021, 6:18 PM EDT for Cabarrus County, Iredell County, Rowan 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
- Aug 15, 2021, 6:18 PM EDT (22:18 UTC)
- Expired
- Aug 15, 2021, 7:00 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 Cabarrus County, NC, Iredell County, NC, Rowan County, NC
The radar
The Roanoke radar (KFCX), 156 km from the middle of the area, began a volume at 22:19 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 15, 6:20 PM EDT | TSTM WND DMG | 1 Sw Kannapolis, NC | LAW ENFORCEMENT REPORTED POWER LINES DOWN ON BETHPAGE RD. ALSO REPORTED MULTIPLE TREES DOWN ACROSS KANNAPOLIS. |
| Aug 15, 6:24 PM EDT | TSTM WND DMG | 1 Nnw Kannapolis, NC | PUBLIC REPORTED TREE DOWN ON A HOUSE ON HARRINGTON STREET |
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, 10.3 hours before the alert went out and 76 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.
- Mixed-layer CAPE
- 313 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 831 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
781
WUUS52 KGSP 152218
SVRGSP
NCC025-097-159-152300-
/O.NEW.KGSP.SV.W.0150.210815T2218Z-210815T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
618 PM EDT Sun Aug 15 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Northwestern Cabarrus County in the Piedmont of North Carolina...
Southeastern Iredell County in the Piedmont of North Carolina...
Southwestern Rowan County in the Piedmont of North Carolina...
* Until 700 PM EDT.
* At 617 PM EDT, a severe thunderstorm was located over Kannapolis,
moving north at 15 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, Salisbury, China Grove, Landis, Enochville, Cleveland,
Faith, Coddle Creek Reservoir, Mount Ulla and Piedmont Research
Station.
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 3544 8045 3540 8073 3573 8082 3578 8049
3577 8049 3578 8048 3576 8047
TIME...MOT...LOC 2217Z 171DEG 14KT 3550 8061
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
HG2 follow-up statements
477
WWUS52 KGSP 152233
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
633 PM EDT Sun Aug 15 2021
NCC025-152242-
/O.CAN.KGSP.SV.W.0150.000000T0000Z-210815T2300Z/
Cabarrus NC-
633 PM EDT Sun Aug 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CABARRUS COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved north
of Cabarrus County. Therefore, the warning has been cancelled for
Cabarrus County.
LAT...LON 3551 8076 3573 8082 3578 8050 3577 8049
3578 8048 3574 8047 3551 8045 3550 8045
TIME...MOT...LOC 2232Z 172DEG 14KT 3556 8060
$$
NCC097-159-152300-
/O.CON.KGSP.SV.W.0150.000000T0000Z-210815T2300Z/
Iredell NC-Rowan NC-
633 PM EDT Sun Aug 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHEASTERN IREDELL AND SOUTHWESTERN ROWAN COUNTIES...
At 632 PM EDT, a severe thunderstorm was located 4 miles north of
Kannapolis, or near Landis, moving north at 15 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...
Salisbury, China Grove, Landis, Enochville, Cleveland, Faith, Mount
Ulla, Piedmont Research Station, Woodleaf and Kannapolis.
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 3551 8076 3573 8082 3578 8050 3577 8049
3578 8048 3574 8047 3551 8045 3550 8045
TIME...MOT...LOC 2232Z 172DEG 14KT 3556 8060
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
HG342
WWUS52 KGSP 152252
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
652 PM EDT Sun Aug 15 2021
NCC097-159-152302-
/O.EXP.KGSP.SV.W.0150.000000T0000Z-210815T2300Z/
Iredell NC-Rowan NC-
652 PM EDT Sun Aug 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN IREDELL AND
SOUTHWESTERN ROWAN COUNTIES WILL EXPIRE AT 700 PM EDT...
The storm which prompted the warning has weakened below severe
limits across Rowan County and no longer poses an immediate threat
to life or property. Therefore, the warning will be allowed to
expire. However gusty winds and heavy rain are still possible with
these thunderstorms.
LAT...LON 3551 8076 3573 8082 3578 8050 3577 8049
3578 8048 3574 8047 3551 8045 3550 8045
TIME...MOT...LOC 2252Z 171DEG 14KT 3563 8061
$$
HGThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 2:58 PM EDT | Special Weather Statement | GSP | Burke | 32 min |
| Aug 15, 3:29 PM EDT | Special Weather Statement | GSP | Madison | 31 min |
| Aug 15, 3:35 PM EDT | Severe Thunderstorm Warning | GSP | Madison | 19 min |
| Aug 15, 4:08 PM EDT | Special Weather Statement | GSP | Caldwell | 37 min |
| Aug 15, 5:01 PM EDT | Special Weather Statement | GSP | Avery | 29 min |
| Aug 15, 5:04 PM EDT | Special Weather Statement | GSP | Union | 26 min |
| Aug 15, 5:25 PM EDT | Special Weather Statement | GSP | Cabarrus | 35 min |
| Aug 15, 5:32 PM EDT | Special Weather Statement | GSP | Mecklenburg, Union | 28 min |
| Aug 15, 5:52 PM EDT | Areal Flood Advisory | GSP | Mecklenburg | 2 hr |
| Aug 15, 5:58 PM EDT | Special Weather Statement | GSP | Cabarrus, Mecklenburg | 32 min |
| Aug 15, 6:00 PM EDT | Special Weather Statement | GSP | Burke | 30 min |
| Aug 15, 6:09 PM EDT | Special Weather Statement | GSP | Lincoln | 36 min |
| Aug 15, 6:14 PM EDT | Areal Flood Advisory | GSP | Cabarrus | 2 hr |
| Aug 15, 6:44 PM EDT | Special Weather Statement | GSP | Iredell, Rowan | 31 min |
| Aug 15, 6:59 PM EDT | Special Weather Statement | GSP | Transylvania | 31 min |
| Aug 15, 7:13 PM EDT | Special Weather Statement | GSP | Davie | 32 min |
| Aug 15, 7:14 PM EDT | Special Weather Statement | GSP | Iredell | 31 min |
| Aug 15, 7:38 PM EDT | Special Weather Statement | GSP | Davie, Iredell | 37 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.