Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 156, NWS Greenville-Spartanburg, SC

August 25, 2021Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 25, 2021, 3:36 PM EDT for Union County, North Carolina. It was in force for 16 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 25, 2021, 3:36 PM EDT (19:36 UTC)
Expired: Aug 25, 2021, 3:52 PM EDT
In force: 16 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Union County, NC

The radar

The Columbia radar (KCAE), 126 km from the middle of the area, began a volume at 19:37 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, 7.6 hours before the alert went out and 138 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1132 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: -45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

714 
WUUS52 KGSP 251936
SVRGSP
NCC179-252015-
/O.NEW.KGSP.SV.W.0156.210825T1936Z-210825T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
336 PM EDT Wed Aug 25 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Southeastern Union County in the Piedmont of North Carolina...

* Until 415 PM EDT.

* At 335 PM EDT, a severe thunderstorm was located 13 miles east of
  Monroe, or near Sturdivants, moving west at 5 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Wingate, Marshville and Sturdivants. 

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 3481 8032 3482 8047 3504 8045 3502 8030
TIME...MOT...LOC 1935Z 092DEG 6KT 3493 8032 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ARK

1 follow-up statement

776 
WWUS52 KGSP 251952
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
352 PM EDT Wed Aug 25 2021

NCC179-252002-
/O.CAN.KGSP.SV.W.0156.000000T0000Z-210825T2015Z/
Union NC-
352 PM EDT Wed Aug 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN UNION 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 gusty winds and
heavy rain are still possible with this thunderstorm.

To report severe weather to the National Weather Service
Greenville-Spartanburg, call toll free, 1, 800, 2 6 7, 8 1 0 1, or
post 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 3481 8032 3482 8047 3504 8045 3502 8030
TIME...MOT...LOC 1950Z 092DEG 6KT 3493 8036 

$$

ARK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 25, 3:29 PM EDT	Special Weather Statement	GSP	Union	31 min
Aug 25, 4:01 PM EDT	Special Weather Statement	GSP	Yancey	29 min
Aug 25, 4:09 PM EDT	Special Weather Statement	GSP	Mecklenburg	36 min
Aug 25, 4:42 PM EDT	Special Weather Statement	GSP	Clay	33 min
Aug 25, 4:56 PM EDT	Special Weather Statement	GSP	Gaston	34 min
Aug 25, 5:19 PM EDT	Special Weather Statement	GSP	Mecklenburg	26 min
Aug 25, 5:34 PM EDT	Areal Flood Advisory	GSP	Gaston	2 hr
Aug 25, 5:50 PM EDT	Areal Flood Advisory	GSP	Graham, Macon, Swain	117 min
Aug 25, 6:42 PM EDT	Special Weather Statement	GSP	Lincoln	33 min
Aug 25, 6:54 PM EDT	Special Weather Statement	GSP	Catawba	36 min
Aug 25, 7:28 PM EDT	Special Weather Statement	GSP	Lincoln	32 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021 Every 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.