Alert archive / South Carolina / Tornado Warnings in 2021

Tornado Warning 13, NWS Greenville-Spartanburg, SC

April 10, 2021Spartanburg County, South Carolina; Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Apr 10, 2021, 6:58 PM EDT for Spartanburg County, South Carolina; Rutherford County, North Carolina. It was in force for 32 min. 3 reports 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: Apr 10, 2021, 6:58 PM EDT (22:58 UTC)
Expired: Apr 10, 2021, 7:30 PM EDT
In force: 32 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Rutherford County, NC, Spartanburg County, SC

The radar

The Greer radar (KGSP), 44 km from the middle of the area, began a volume at 22:59 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
Apr 10, 7:00 PM EDT	TSTM WND DMG	3 Sw Boiling Springs Sc, SC	BROADCAST MEDIA REPORTED TREES SNAPPED ON THE INTERSECTION OF ASHEVILLE HWY AND PISGAH CHURCH RD
Apr 10, 7:10 PM EDT	TSTM WND DMG	3 Ese Harris, NC	911 CALL CENTER REPORTED TREES AND POWER LINES DOWN ON GOODES CREEK CHURCH RD.
Apr 10, 7:21 PM EDT	TORNADO	6 Se Forest City, NC	NWS STORM SURVEY REPORTED AN EF-0 TORNADO WITH ESTIMATED PEAK WIND SPEEDS OF 75 MPH SOUTHEAST OF FOREST CITY.

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, 11.0 hours before the alert went out and 207 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 706 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

871 
WFUS52 KGSP 102258
TORGSP
NCC161-SCC083-102330-
/O.NEW.KGSP.TO.W.0013.210410T2258Z-210410T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
658 PM EDT Sat Apr 10 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Tornado Warning for...
  Southeastern Rutherford County in western North Carolina...
  North central Spartanburg County in Upstate South Carolina...

* Until 730 PM EDT.
    
* At 657 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 9 miles north of Spartanburg, or near Boiling Springs
  SC, moving north at 45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Chesnee around 710 PM EDT.
  Forest City around 720 PM EDT.

Other locations impacted by this dangerous thunderstorm include
Harris, Fingerville and Caroleen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

A brief, weak tornado is likely. Mobile homes could be flipped.
Falling trees can cause death or serious injury, and major damage to
houses. Move to a basement or an interior room on the lowest floor of
a sturdy building.

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 3530 8177 3518 8185 3518 8187 3516 8186
      3498 8199 3499 8205 3519 8199 3519 8197
      3522 8196 3525 8197 3534 8194
TIME...MOT...LOC 2257Z 200DEG 39KT 3508 8198 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

8

1 follow-up statement

766 
WWUS52 KGSP 102313
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
713 PM EDT Sat Apr 10 2021

SCC083-102323-
/O.CAN.KGSP.TO.W.0013.000000T0000Z-210410T2330Z/
Spartanburg SC-
713 PM EDT Sat Apr 10 2021

...THE TORNADO WARNING FOR NORTH CENTRAL SPARTANBURG COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the county, and therefore the warning has been cancelled.

LAT...LON 3530 8177 3518 8185 3519 8197 3521 8196
      3524 8197 3526 8197 3534 8194
TIME...MOT...LOC 2313Z 200DEG 39KT 3524 8191 

$$

NCC161-102330-
/O.CON.KGSP.TO.W.0013.000000T0000Z-210410T2330Z/
Rutherford NC-
713 PM EDT Sat Apr 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHEASTERN RUTHERFORD COUNTY...
    
At 713 PM EDT, a severe thunderstorm capable of producing a tornado
was located 6 miles south of Forest City, moving north at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Forest City around 720 PM EDT.

Other locations impacted by this dangerous storm include Harris and
Caroleen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

A brief, weak tornado is likely. Mobile homes could be flipped.
Falling trees can cause death or serious injury, and major damage to
houses. Move to a basement or an interior room on the lowest floor of
a sturdy building.

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 3530 8177 3518 8185 3519 8197 3521 8196
      3524 8197 3526 8197 3534 8194
TIME...MOT...LOC 2313Z 200DEG 39KT 3524 8191 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

8

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 6:37 PM EDT	Tornado Warning	GSP	Spartanburg	23 min
Apr 10, 7:37 PM EDT	Tornado Warning	GSP	Burke, McDowell, Rutherford	38 min
Apr 10, 7:40 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell, Catawba, Cleveland, Gaston, Lincoln and 1 more	50 min

Nearby

Tornado Warnings in South Carolina, 2021 Tornado Warnings in North Carolina, 2021 Every tornado warning in 2021 Tornadoes 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.