Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 70, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 17, 2021, 5:01 PM EDT for Buncombe County, North Carolina. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 17, 2021, 5:01 PM EDT (21:01 UTC)
- Expired
- Jul 17, 2021, 5:45 PM EDT
- In force
- 44 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Buncombe County, NC
The radar
The Knoxville radar (KMRX), 93 km from the middle of the area, began a volume at 21:00 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.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.0 hours before the alert went out and 241 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
- 966 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 843 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
244
WUUS52 KGSP 172101
SVRGSP
NCC021-172145-
/O.NEW.KGSP.SV.W.0070.210717T2101Z-210717T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
501 PM EDT Sat Jul 17 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Central Buncombe County in western North Carolina...
* Until 545 PM EDT.
* At 501 PM EDT, a severe thunderstorm was located 5 miles northwest
of Downtown Asheville, or near Woodfin, moving east 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...
Downtown Asheville, East Asheville, West Asheville, North
Asheville, Woodfin, Swannanoa, Weaverville, Leicester, B.R.
Parkway-East Asheville To Craggy Gardens and UNC-Asheville.
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 3559 8232 3554 8265 3571 8273 3573 8269
3573 8267 3574 8267 3580 8252 3580 8247
3581 8246 3581 8243
TIME...MOT...LOC 2101Z 250DEG 8KT 3565 8261
HAIL...1.00IN
WIND...60MPH
$$
RWH2 follow-up statements
624
WWUS52 KGSP 172126
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
526 PM EDT Sat Jul 17 2021
NCC021-172145-
/O.CON.KGSP.SV.W.0070.000000T0000Z-210717T2145Z/
Buncombe NC-
526 PM EDT Sat Jul 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR CENTRAL BUNCOMBE COUNTY...
At 526 PM EDT, a severe thunderstorm was located 6 miles east of
Downtown Asheville, or near Warren Wilson College, moving east at 20
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is expected. Expect wind
damage to trees and power lines.
Locations impacted include...
Downtown Asheville, East Asheville, North Asheville, Woodfin,
Swannanoa, Weaverville, B.R. Parkway-East Asheville To Craggy
Gardens, UNC-Asheville, Warren Wilson College and Barnardsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
LAT...LON 3556 8254 3566 8261 3569 8259 3575 8253
3581 8243 3559 8232
TIME...MOT...LOC 2126Z 256DEG 16KT 3559 8243
HAIL...1.00IN
WIND...60MPH
$$
RWH919
WWUS52 KGSP 172140
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
540 PM EDT Sat Jul 17 2021
NCC021-172150-
/O.EXP.KGSP.SV.W.0070.000000T0000Z-210717T2145Z/
Buncombe NC-
540 PM EDT Sat Jul 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BUNCOMBE COUNTY WILL
EXPIRE AT 545 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 3556 8254 3566 8261 3569 8259 3575 8253
3581 8243 3559 8232
TIME...MOT...LOC 2140Z 250DEG 8KT 3560 8240
$$
RWHThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 8:05 PM EDT | Special Weather Statement | GSP | Madison | 25 min |
| Jul 16, 8:29 PM EDT | Special Weather Statement | GSP | Madison | 31 min |
| Jul 16, 11:04 PM EDT | Special Weather Statement | GSP | Graham | 26 min |
| Jul 17, 1:05 PM EDT | Special Weather Statement | GSP | Alexander | 25 min |
| Jul 17, 1:30 PM EDT | Special Weather Statement | GSP | Alexander | 30 min |
| Jul 17, 1:33 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Catawba, Iredell | 42 min |
| Jul 17, 4:01 PM EDT | Special Weather Statement | GSP | Caldwell | 29 min |
| Jul 17, 4:16 PM EDT | Special Weather Statement | GSP | Buncombe | 29 min |
| Jul 17, 4:19 PM EDT | Special Weather Statement | GSP | Transylvania | 26 min |
| Jul 17, 4:24 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Caldwell | 51 min |
| Jul 17, 4:58 PM EDT | Special Weather Statement | GSP | Buncombe | 32 min |
| Jul 17, 5:06 PM EDT | Special Weather Statement | GSP | Henderson | 24 min |
| Jul 17, 5:36 PM EDT | Special Weather Statement | GSP | McDowell | 24 min |
| Jul 17, 5:56 PM EDT | Special Weather Statement | GSP | Rutherford | 34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.