Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 103, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 11, 2021, 3:53 PM EDT for Iredell County, North Carolina. It was in force for 52 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 11, 2021, 3:53 PM EDT (19:53 UTC)
- Expired
- Aug 11, 2021, 4:45 PM EDT
- In force
- 52 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Iredell County, NC
The radar
The Roanoke radar (KFCX), 128 km from the middle of the area, began a volume at 19:55 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 11, 4:11 PM EDT | TSTM WND DMG | 3 Ssw Union Grove, NC | EMERGENCY MNGR REPORTED TREES DOWN ON TRUMPET BRANCH 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, 7.9 hours before the alert went out and 90 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
- 653 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1352 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
866
WUUS52 KGSP 111953
SVRGSP
NCC097-112045-
/O.NEW.KGSP.SV.W.0103.210811T1953Z-210811T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
353 PM EDT Wed Aug 11 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Northeastern Iredell County in the Piedmont of North Carolina...
* Until 445 PM EDT.
* At 352 PM EDT, a severe thunderstorm was located 15 miles south of
Ronda, or near Love Valley, 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...
Harmony, Love Valley, Union Grove, Turnersburg and Olin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Brief damaging winds will blow down trees and power lines over small
areas. A brief period of large hail is also possible. Seek shelter
inside an interior room.
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.
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 8089 3605 8078 3602 8069 3598 8070
3580 8088 3593 8102 3596 8100 3599 8100
3601 8102 3606 8097
TIME...MOT...LOC 1952Z 309DEG 4KT 3600 8093
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
TDP1 follow-up statement
414
WWUS52 KGSP 112037
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
437 PM EDT Wed Aug 11 2021
NCC097-112047-
/O.EXP.KGSP.SV.W.0103.000000T0000Z-210811T2045Z/
Iredell NC-
437 PM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN IREDELL COUNTY
WILL EXPIRE AT 445 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3605 8089 3605 8078 3602 8069 3598 8070
3580 8088 3593 8102 3596 8100 3599 8100
3601 8102 3606 8097
TIME...MOT...LOC 2037Z 309DEG 4KT 3597 8089
$$
WJMThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 12:28 PM EDT | Special Weather Statement | GSP | Henderson | 47 min |
| Aug 11, 1:47 PM EDT | Special Weather Statement | GSP | McDowell | 28 min |
| Aug 11, 2:51 PM EDT | Special Weather Statement | GSP | Burke | 24 min |
| Aug 11, 3:01 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Catawba | 44 min |
| Aug 11, 3:24 PM EDT | Special Weather Statement | GSP | Polk | 36 min |
| Aug 11, 3:51 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe | 39 min |
| Aug 11, 4:01 PM EDT | Severe Thunderstorm Warning | GSP | Polk | 44 min |
| Aug 11, 4:03 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Cleveland, Lincoln, Rutherford | 42 min |
| Aug 11, 4:24 PM EDT | Special Weather Statement | GSP | Rutherford | 36 min |
| Aug 11, 4:31 PM EDT | Special Weather Statement | GSP | Iredell | 29 min |
| Aug 11, 4:40 PM EDT | Severe Thunderstorm Warning | GSP | Catawba, Iredell | 50 min |
| Aug 11, 4:54 PM EDT | Special Weather Statement | GSP | Rutherford | 36 min |
| Aug 11, 5:02 PM EDT | Special Weather Statement | GSP | Iredell | 28 min |
| Aug 11, 5:08 PM EDT | Severe Thunderstorm Warning | GSP | Iredell, Rowan | 34 min |
| Aug 11, 5:17 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland | 43 min |
| Aug 11, 5:34 PM EDT | Severe Thunderstorm Warning | GSP | Union | 27 min |
| Aug 11, 5:46 PM EDT | Special Weather Statement | GSP | Mecklenburg | 29 min |
| Aug 11, 5:57 PM EDT | Special Weather Statement | GSP | Mecklenburg | 33 min |
| Aug 11, 6:08 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg | 10 min |
| Aug 11, 6:10 PM EDT | Special Weather Statement | GSP | Gaston | 35 min |
| Aug 11, 6:16 PM EDT | Special Weather Statement | GSP | Cabarrus | 29 min |
| Aug 11, 6:29 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus | 20 min |
| Aug 11, 6:47 PM EDT | Special Weather Statement | GSP | Cabarrus | 28 min |
| Aug 11, 6:59 PM EDT | Areal Flood Advisory | GSP | Cabarrus, Rowan | 2 hr |
| Aug 11, 7:28 PM EDT | Special Weather Statement | GSP | Mecklenburg | 32 min |
| Aug 11, 7:31 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg | 44 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.