Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 140, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 14, 2021, 3:39 PM EDT for Mecklenburg County, Union County, North Carolina. It was in force for 51 min. 1 report 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, 3:39 PM EDT (19:39 UTC)
- Expired
- Aug 14, 2021, 4:30 PM EDT
- In force
- 51 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Mecklenburg County, NC, Union County, NC
The radar
The Columbia radar (KCAE), 119 km from the middle of the area, began a volume at 19:42 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 14, 4:15 PM EDT | TSTM WND DMG | 2 Nnw Waxhaw, NC | TREES DOWN NEAR CUTHBERTSON RD & S PROVIDENCE 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, 7.7 hours before the alert went out and 143 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
- 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
The text
As transmitted.
851
WUUS52 KGSP 141939
SVRGSP
NCC119-179-142030-
/O.NEW.KGSP.SV.W.0140.210814T1939Z-210814T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
339 PM EDT Sat Aug 14 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Southeastern Mecklenburg County in the Piedmont of North
Carolina...
Western Union County in the Piedmont of North Carolina...
* Until 430 PM EDT.
* At 339 PM EDT, a severe thunderstorm was located 4 miles west of
Monroe, or near Wesley Chapel, moving west at 5 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...
Monroe, Matthews, Indian Trail, Weddington, Stallings, Unionville,
Wesley Chapel, Wingate, Waxhaw and Lake Park.
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 3482 8046 3482 8080 3494 8078 3501 8084
3517 8072 3506 8043
TIME...MOT...LOC 1939Z 103DEG 5KT 3498 8061
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
HG2 follow-up statements
765
WWUS52 KGSP 142013
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
413 PM EDT Sat Aug 14 2021
NCC119-142022-
/O.CAN.KGSP.SV.W.0140.000000T0000Z-210814T2030Z/
Mecklenburg NC-
413 PM EDT Sat Aug 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MECKLENBURG
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved south
of Mecklenburg County. Therefore, the warning has been cancelled
fore Mecklenburg County.
LAT...LON 3482 8046 3482 8080 3494 8078 3501 8083
3505 8075 3514 8064 3514 8063 3502 8046
3497 8044
TIME...MOT...LOC 2012Z 043DEG 13KT 3488 8073
$$
NCC179-142030-
/O.CON.KGSP.SV.W.0140.000000T0000Z-210814T2030Z/
Union NC-
413 PM EDT Sat Aug 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR WESTERN UNION COUNTY...
At 412 PM EDT, a severe thunderstorm was located 10 miles southeast
of Indian Land, or near Waxhaw, moving southwest 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...
Monroe, Indian Trail, Weddington, Stallings, Wesley Chapel, Wingate,
Waxhaw, Lake Park, Mineral Springs and Hemby Bridge.
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 3482 8046 3482 8080 3494 8078 3501 8083
3505 8075 3514 8064 3514 8063 3502 8046
3497 8044
TIME...MOT...LOC 2012Z 043DEG 13KT 3488 8073
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
HG954
WWUS52 KGSP 142026
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
426 PM EDT Sat Aug 14 2021
NCC179-142036-
/O.EXP.KGSP.SV.W.0140.000000T0000Z-210814T2030Z/
Union NC-
426 PM EDT Sat Aug 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN UNION COUNTY WILL
EXPIRE AT 430 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 3482 8046 3482 8080 3494 8078 3501 8083
3505 8075 3514 8064 3514 8063 3502 8046
3497 8044
TIME...MOT...LOC 2026Z 103DEG 5KT 3488 8075
$$
HGThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 8:37 PM EDT | Special Weather Statement | GSP | Cabarrus | 23 min |
| Aug 13, 9:10 PM EDT | Special Weather Statement | GSP | Cabarrus | 35 min |
| Aug 13, 11:13 PM EDT | Special Weather Statement | GSP | Rowan | 32 min |
| Aug 13, 11:15 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Rowan | 45 min |
| Aug 13, 11:45 PM EDT | Special Weather Statement | GSP | Cabarrus | 30 min |
| Aug 13, 11:49 PM EDT | Special Weather Statement | GSP | Rowan | 26 min |
| Aug 14, 12:10 AM EDT | Special Weather Statement | GSP | Rowan | 35 min |
| Aug 14, 12:17 AM EDT | Special Weather Statement | GSP | Cabarrus | 28 min |
| Aug 14, 12:31 AM EDT | Areal Flood Advisory | GSP | Rowan | 119 min |
| Aug 14, 12:33 AM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Rowan | 42 min |
| Aug 14, 1:02 AM EDT | Special Weather Statement | GSP | Rowan | 28 min |
| Aug 14, 1:13 AM EDT | Special Weather Statement | GSP | Rowan | 32 min |
| Aug 14, 1:32 AM EDT | Areal Flood Advisory | GSP | Cabarrus, Rowan | 118 min |
| Aug 14, 1:37 AM EDT | Special Weather Statement | GSP | Rowan | 23 min |
| Aug 14, 2:03 AM EDT | Flash Flood Warning | GSP | Cabarrus | 117 min |
| Aug 14, 2:17 PM EDT | Special Weather Statement | GSP | Lincoln | 28 min |
| Aug 14, 2:19 PM EDT | Special Weather Statement | GSP | Union | 26 min |
| Aug 14, 2:33 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg, Union | 42 min |
| Aug 14, 2:43 PM EDT | Severe Thunderstorm Warning | GSP | Union | 47 min |
| Aug 14, 2:46 PM EDT | Special Weather Statement | GSP | Catawba, Lincoln | 29 min |
| Aug 14, 2:53 PM EDT | Severe Thunderstorm Warning | GSP | Catawba, Lincoln | 33 min |
| Aug 14, 3:04 PM EDT | Severe Thunderstorm Warning | GSP | Henderson, Transylvania | 21 min |
| Aug 14, 3:13 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg | 47 min |
| Aug 14, 3:30 PM EDT | Special Weather Statement | GSP | Mecklenburg | 30 min |
| Aug 14, 4:00 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Iredell, Rowan | 45 min |
| Aug 14, 4:08 PM EDT | Special Weather Statement | GSP | Burke | 37 min |
| Aug 14, 4:12 PM EDT | Areal Flood Advisory | GSP | Mecklenburg | 96 min |
| Aug 14, 4:22 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe, Henderson | 53 min |
| Aug 14, 4:25 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Caldwell | 50 min |
| Aug 14, 4:28 PM EDT | Special Weather Statement | GSP | Union | 32 min |
| Aug 14, 4:33 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Iredell, Rowan | 42 min |
| Aug 14, 4:34 PM EDT | Severe Thunderstorm Warning | GSP | Burke, McDowell, Rutherford | 41 min |
| Aug 14, 4:35 PM EDT | Severe Thunderstorm Warning | GSP | McDowell, Rutherford | 40 min |
| Aug 14, 4:45 PM EDT | Special Weather Statement | GSP | Transylvania | 30 min |
| Aug 14, 4:55 PM EDT | Severe Thunderstorm Warning | GSP | Burke, McDowell, Rutherford | 50 min |
| Aug 14, 5:01 PM EDT | Special Weather Statement | GSP | Buncombe | 29 min |
| Aug 14, 5:14 PM EDT | Special Weather Statement | GSP | Iredell | 31 min |
| Aug 14, 5:16 PM EDT | Special Weather Statement | GSP | Polk | 29 min |
| Aug 14, 5:27 PM EDT | Areal Flood Advisory | GSP | Caldwell | 2 hr |
| Aug 14, 5:42 PM EDT | Special Weather Statement | GSP | Jackson | 33 min |
| Aug 14, 5:44 PM EDT | Special Weather Statement | GSP | Polk | 31 min |
| Aug 14, 5:53 PM EDT | Special Weather Statement | GSP | Henderson | 37 min |
| Aug 14, 6:02 PM EDT | Areal Flood Advisory | GSP | McDowell | 118 min |
| Aug 14, 6:20 PM EDT | Special Weather Statement | GSP | Swain | 25 min |
| Aug 14, 6:51 PM EDT | Areal Flood Advisory | GSP | Buncombe, McDowell, Rutherford | 114 min |
| Aug 14, 7:38 PM EDT | Areal Flood Advisory | GSP | Buncombe, Henderson | 112 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.