Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 87, NWS Greenville-Spartanburg, SC

August 10, 2021Yancey County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 10, 2021, 5:02 PM EDT for Yancey County, North Carolina. It was in force for 28 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
Aug 10, 2021, 5:02 PM EDT (21:02 UTC)
Expired
Aug 10, 2021, 5:30 PM EDT
In force
28 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Yancey County, NC

The radar

The Greer radar (KGSP), 109 km from the middle of the area, began a volume at 21:06 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 210 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2021-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1302 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2021-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted.

328 
WUUS52 KGSP 102102
SVRGSP
NCC199-102130-
/O.NEW.KGSP.SV.W.0087.210810T2102Z-210810T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
502 PM EDT Tue Aug 10 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Central Yancey County in western North Carolina...

* Until 530 PM EDT.

* At 502 PM EDT, a severe thunderstorm was located near Burnsville,
  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...
  Burnsville, Celo, Micaville and B.R. Parkway-Craggy To Little
  Switzerland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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 3593 8215 3591 8215 3584 8214 3584 8215
      3581 8214 3581 8215 3582 8238 3582 8240
      3596 8241
TIME...MOT...LOC 2102Z 268DEG 3KT 3590 8231 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MOORE
1 follow-up statement
548 
WWUS52 KGSP 102116
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
516 PM EDT Tue Aug 10 2021

NCC199-102130-
/O.CON.KGSP.SV.W.0087.000000T0000Z-210810T2130Z/
Yancey NC-
516 PM EDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CENTRAL YANCEY COUNTY...

At 516 PM EDT, a severe thunderstorm was located near Burnsville, 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...
Burnsville, Celo and Micaville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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 3594 8225 3591 8221 3586 8214 3585 8214
      3584 8215 3581 8214 3581 8215 3585 8233
      3588 8240 3596 8241
TIME...MOT...LOC 2116Z 228DEG 2KT 3592 8233 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MOORE

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 8:00 PM EDTSpecial Weather StatementGSPHaywood45 min
Aug 9, 8:45 PM EDTSpecial Weather StatementGSPHaywood45 min
Aug 9, 9:11 PM EDTAreal Flood AdvisoryGSPBuncombe, Haywood70 min
Aug 9, 9:19 PM EDTSpecial Weather StatementGSPMcDowell26 min
Aug 10, 1:19 PM EDTSpecial Weather StatementGSPCaldwell26 min
Aug 10, 1:46 PM EDTSpecial Weather StatementGSPCaldwell44 min
Aug 10, 2:13 PM EDTSpecial Weather StatementGSPBuncombe32 min
Aug 10, 2:22 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell28 min
Aug 10, 2:46 PM EDTSpecial Weather StatementGSPBuncombe29 min
Aug 10, 2:49 PM EDTSpecial Weather StatementGSPHenderson26 min
Aug 10, 2:58 PM EDTSpecial Weather StatementGSPGraham32 min
Aug 10, 3:04 PM EDTSevere Thunderstorm WarningGSPHenderson, Transylvania29 min
Aug 10, 3:11 PM EDTSpecial Weather StatementGSPMcDowell34 min
Aug 10, 3:22 PM EDTSpecial Weather StatementGSPRutherford23 min
Aug 10, 3:26 PM EDTSpecial Weather StatementGSPBurke34 min
Aug 10, 3:31 PM EDTSpecial Weather StatementGSPMcDowell29 min
Aug 10, 3:37 PM EDTSpecial Weather StatementGSPTransylvania23 min
Aug 10, 3:55 PM EDTSpecial Weather StatementGSPMcDowell35 min
Aug 10, 3:57 PM EDTSpecial Weather StatementGSPMadison33 min
Aug 10, 4:10 PM EDTSpecial Weather StatementGSPBurke35 min
Aug 10, 4:13 PM EDTSevere Thunderstorm WarningGSPBuncombe, Madison30 min
Aug 10, 4:25 PM EDTSpecial Weather StatementGSPMacon35 min
Aug 10, 4:29 PM EDTSpecial Weather StatementGSPUnion31 min
Aug 10, 4:30 PM EDTSpecial Weather StatementGSPPolk30 min
Aug 10, 4:31 PM EDTSpecial Weather StatementGSPMcDowell29 min
Aug 10, 4:45 PM EDTSevere Thunderstorm WarningGSPRutherford32 min
Aug 10, 4:50 PM EDTSpecial Weather StatementGSPPolk25 min
Aug 10, 4:52 PM EDTSpecial Weather StatementGSPTransylvania38 min
Aug 10, 4:54 PM EDTSpecial Weather StatementGSPAvery36 min
Aug 10, 4:57 PM EDTSpecial Weather StatementGSPYancey33 min
Aug 10, 5:06 PM EDTSpecial Weather StatementGSPCleveland24 min
Aug 10, 5:07 PM EDTSevere Thunderstorm WarningGSPAvery, Burke, McDowell38 min
Aug 10, 5:08 PM EDTSpecial Weather StatementGSPMacon37 min
Aug 10, 5:20 PM EDTSpecial Weather StatementGSPPolk25 min
Aug 10, 5:27 PM EDTSpecial Weather StatementGSPCabarrus33 min
Aug 10, 5:37 PM EDTSpecial Weather StatementGSPJackson23 min
Aug 10, 5:52 PM EDTAreal Flood AdvisoryGSPYancey113 min
Aug 10, 6:00 PM EDTSpecial Weather StatementGSPMacon30 min
Aug 10, 6:05 PM EDTSpecial Weather StatementGSPCleveland25 min
Aug 10, 6:14 PM EDTSpecial Weather StatementGSPGraham31 min
Aug 10, 6:24 PM EDTSevere Thunderstorm WarningGSPGraham, Swain51 min
Aug 10, 6:28 PM EDTSpecial Weather StatementGSPMecklenburg32 min
Aug 10, 6:54 PM EDTSpecial Weather StatementGSPMacon51 min
Aug 10, 7:07 PM EDTSpecial Weather StatementGSPMecklenburg38 min
Aug 10, 7:47 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg24 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.