Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 84, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 10, 2021, 4:13 PM EDT for Buncombe County, Madison County, North Carolina. It was in force for 30 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 10, 2021, 4:13 PM EDT (20:13 UTC)
- Expired
- Aug 10, 2021, 4:43 PM EDT
- In force
- 30 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Buncombe County, NC, Madison County, NC
The radar
The Knoxville radar (KMRX), 81 km from the middle of the area, began a volume at 20:16 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 10, 4:34 PM EDT | HAIL 1.5 | 3 W Mars Hill, NC | PUBLIC REPORTED PING PONG BALL (1.50) SIZE HAIL IN PETERSBURG, NC. ALSO REPORTED LARGE TREE LIMBS 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, 8.2 hours before the alert went out and 247 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
- 1302 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
301
WUUS52 KGSP 102013
SVRGSP
NCC021-115-102100-
/O.NEW.KGSP.SV.W.0084.210810T2013Z-210810T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
413 PM EDT Tue Aug 10 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Southeastern Madison County in western North Carolina...
North central Buncombe County in western North Carolina...
* Until 500 PM EDT.
* At 413 PM EDT, a severe thunderstorm was located 4 miles east of
Marshall, or near Mars Hill, moving southeast at 10 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...
Marshall, Mars Hill and Flat Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
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 3580 8271 3589 8262 3582 8248 3570 8259
TIME...MOT...LOC 2013Z 317DEG 7KT 3581 8261
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CAC2 follow-up statements
078
WWUS52 KGSP 102028
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
428 PM EDT Tue Aug 10 2021
NCC021-102037-
/O.CAN.KGSP.SV.W.0084.000000T0000Z-210810T2100Z/
Buncombe NC-
428 PM EDT Tue Aug 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BUNCOMBE COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3583 8250 3579 8253 3575 8263 3581 8270
3589 8262
TIME...MOT...LOC 2027Z 317DEG 7KT 3579 8259
$$
NCC115-102100-
/O.CON.KGSP.SV.W.0084.000000T0000Z-210810T2100Z/
Madison NC-
428 PM EDT Tue Aug 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SOUTHEASTERN MADISON COUNTY...
At 427 PM EDT, a severe thunderstorm was located 5 miles east of
Marshall, or near Mars Hill, moving southeast at 10 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...
Marshall and Mars Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
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 3583 8250 3579 8253 3575 8263 3581 8270
3589 8262
TIME...MOT...LOC 2027Z 317DEG 7KT 3579 8259
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CAC539
WWUS52 KGSP 102043
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
443 PM EDT Tue Aug 10 2021
NCC115-102052-
/O.CAN.KGSP.SV.W.0084.000000T0000Z-210810T2100Z/
Madison NC-
443 PM EDT Tue Aug 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MADISON COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However heavy rain is
still possible with this thunderstorm.
LAT...LON 3583 8250 3579 8253 3575 8263 3581 8270
3589 8262
TIME...MOT...LOC 2041Z 317DEG 7KT 3577 8256
$$
CACThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 8:00 PM EDT | Special Weather Statement | GSP | Haywood | 45 min |
| Aug 9, 8:45 PM EDT | Special Weather Statement | GSP | Haywood | 45 min |
| Aug 9, 9:11 PM EDT | Areal Flood Advisory | GSP | Buncombe, Haywood | 70 min |
| Aug 9, 9:19 PM EDT | Special Weather Statement | GSP | McDowell | 26 min |
| Aug 10, 1:19 PM EDT | Special Weather Statement | GSP | Caldwell | 26 min |
| Aug 10, 1:46 PM EDT | Special Weather Statement | GSP | Caldwell | 44 min |
| Aug 10, 2:13 PM EDT | Special Weather Statement | GSP | Buncombe | 32 min |
| Aug 10, 2:22 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Caldwell | 28 min |
| Aug 10, 2:46 PM EDT | Special Weather Statement | GSP | Buncombe | 29 min |
| Aug 10, 2:49 PM EDT | Special Weather Statement | GSP | Henderson | 26 min |
| Aug 10, 2:58 PM EDT | Special Weather Statement | GSP | Graham | 32 min |
| Aug 10, 3:04 PM EDT | Severe Thunderstorm Warning | GSP | Henderson, Transylvania | 29 min |
| Aug 10, 3:11 PM EDT | Special Weather Statement | GSP | McDowell | 34 min |
| Aug 10, 3:22 PM EDT | Special Weather Statement | GSP | Rutherford | 23 min |
| Aug 10, 3:26 PM EDT | Special Weather Statement | GSP | Burke | 34 min |
| Aug 10, 3:31 PM EDT | Special Weather Statement | GSP | McDowell | 29 min |
| Aug 10, 3:37 PM EDT | Special Weather Statement | GSP | Transylvania | 23 min |
| Aug 10, 3:55 PM EDT | Special Weather Statement | GSP | McDowell | 35 min |
| Aug 10, 3:57 PM EDT | Special Weather Statement | GSP | Madison | 33 min |
| Aug 10, 4:10 PM EDT | Special Weather Statement | GSP | Burke | 35 min |
| Aug 10, 4:25 PM EDT | Special Weather Statement | GSP | Macon | 35 min |
| Aug 10, 4:29 PM EDT | Special Weather Statement | GSP | Union | 31 min |
| Aug 10, 4:30 PM EDT | Special Weather Statement | GSP | Polk | 30 min |
| Aug 10, 4:31 PM EDT | Special Weather Statement | GSP | McDowell | 29 min |
| Aug 10, 4:45 PM EDT | Severe Thunderstorm Warning | GSP | Rutherford | 32 min |
| Aug 10, 4:50 PM EDT | Special Weather Statement | GSP | Polk | 25 min |
| Aug 10, 4:52 PM EDT | Special Weather Statement | GSP | Transylvania | 38 min |
| Aug 10, 4:54 PM EDT | Special Weather Statement | GSP | Avery | 36 min |
| Aug 10, 4:57 PM EDT | Special Weather Statement | GSP | Yancey | 33 min |
| Aug 10, 5:02 PM EDT | Severe Thunderstorm Warning | GSP | Yancey | 28 min |
| Aug 10, 5:06 PM EDT | Special Weather Statement | GSP | Cleveland | 24 min |
| Aug 10, 5:07 PM EDT | Severe Thunderstorm Warning | GSP | Avery, Burke, McDowell | 38 min |
| Aug 10, 5:08 PM EDT | Special Weather Statement | GSP | Macon | 37 min |
| Aug 10, 5:20 PM EDT | Special Weather Statement | GSP | Polk | 25 min |
| Aug 10, 5:27 PM EDT | Special Weather Statement | GSP | Cabarrus | 33 min |
| Aug 10, 5:37 PM EDT | Special Weather Statement | GSP | Jackson | 23 min |
| Aug 10, 5:52 PM EDT | Areal Flood Advisory | GSP | Yancey | 113 min |
| Aug 10, 6:00 PM EDT | Special Weather Statement | GSP | Macon | 30 min |
| Aug 10, 6:05 PM EDT | Special Weather Statement | GSP | Cleveland | 25 min |
| Aug 10, 6:14 PM EDT | Special Weather Statement | GSP | Graham | 31 min |
| Aug 10, 6:24 PM EDT | Severe Thunderstorm Warning | GSP | Graham, Swain | 51 min |
| Aug 10, 6:28 PM EDT | Special Weather Statement | GSP | Mecklenburg | 32 min |
| Aug 10, 6:54 PM EDT | Special Weather Statement | GSP | Macon | 51 min |
| Aug 10, 7:07 PM EDT | Special Weather Statement | GSP | Mecklenburg | 38 min |
| Aug 10, 7:47 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Mecklenburg | 24 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.