Alert archive / South Carolina / Tornado Warnings in 2017

Tornado Warning 30, NWS Greenville-Spartanburg, SC

October 8, 2017Cherokee County, Union County, South Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Oct 8, 2017, 6:00 PM EDT for Cherokee County, Union County, South Carolina. It was in force for 45 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
Oct 8, 2017, 6:00 PM EDT (22:00 UTC)
Expired
Oct 8, 2017, 6:45 PM EDT
In force
45 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Cherokee County, SC, Union County, SC

The radar

The Greer radar (KGSP), 49 km from the middle of the area, began a volume at 22:01 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, 10.0 hours before the alert went out and 205 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 2017-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 142 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 2017-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.193958Sfc1 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
142 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
556 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

294 
WFUS52 KGSP 082200
TORGSP
SCC021-087-082245-
/O.NEW.KGSP.TO.W.0030.171008T2200Z-171008T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
600 PM EDT SUN OCT 8 2017

The National Weather Service in Greenville-Spartanburg has issued a

* Tornado Warning for...
  Central Cherokee County in Upstate South Carolina...
  Northwestern Union County in Upstate South Carolina...

* Until 645 PM EDT
    
* At 600 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 12 miles south of Gaffney, or near Pacolet, moving
  north at 30 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...
  Gaffney around 630 PM EDT. 
  Blacksburg around 640 PM EDT. 

Other locations impacted by this dangerous thunderstorm include
Cherokee Falls, Draytonville and Thicketty.

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.

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 3485 8173 3490 8173 3491 8171 3492 8173
      3518 8172 3514 8148 3483 8167
TIME...MOT...LOC 2200Z 194DEG 25KT 3489 8169 

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

$$

08
1 follow-up statement
597 
WWUS52 KGSP 082217
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
617 PM EDT SUN OCT 8 2017

SCC087-082226-
/O.CAN.KGSP.TO.W.0030.000000T0000Z-171008T2245Z/
Union SC-
617 PM EDT SUN OCT 8 2017

...THE TORNADO WARNING FOR NORTHWESTERN UNION 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 3494 8166 3494 8173 3518 8172 3516 8159
TIME...MOT...LOC 2216Z 180DEG 27KT 3502 8170 

$$

SCC021-082245-
/O.CON.KGSP.TO.W.0030.000000T0000Z-171008T2245Z/
Cherokee SC-
617 PM EDT SUN OCT 8 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR NORTH
CENTRAL CHEROKEE COUNTY...
    
At 616 PM EDT, a severe thunderstorm capable of producing a tornado
was located 4 miles southwest of Gaffney, moving north at 30 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...
  Gaffney around 630 PM EDT. 

Other locations impacted by this dangerous storm include Thicketty.

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.

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 3494 8166 3494 8173 3518 8172 3516 8159
TIME...MOT...LOC 2216Z 180DEG 27KT 3502 8170 

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

$$

08

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 12:55 PM EDTSpecial Weather StatementGSPGreenville65 min
Oct 8, 3:05 PM EDTSpecial Weather StatementGSPSpartanburg40 min
Oct 8, 3:17 PM EDTSpecial Weather StatementGSPPickens43 min
Oct 8, 3:39 PM EDTAreal Flood AdvisoryGSPOconee2 hr
Oct 8, 3:46 PM EDTSpecial Weather StatementGSPCherokee44 min
Oct 8, 4:01 PM EDTSpecial Weather StatementGSPLaurens44 min
Oct 8, 4:08 PM EDTTornado WarningGSPLaurens37 min
Oct 8, 4:15 PM EDTTornado WarningGSPGreenwood, Laurens30 min
Oct 8, 4:33 PM EDTTornado WarningGSPGreenville, Pickens42 min
Oct 8, 4:35 PM EDTTornado Warning Tornado observedGSPLaurens, Spartanburg40 min
Oct 8, 4:38 PM EDTTornado WarningGSPLaurens, Union37 min
Oct 8, 5:04 PM EDTTornado Warning Tornado observedGSPCherokee, Spartanburg, Union41 min
Oct 8, 5:14 PM EDTTornado Warning Tornado observedGSPSpartanburg, Union46 min
Oct 8, 6:12 PM EDTAreal Flood AdvisoryGSPGreenville, Spartanburg2 hr
Oct 8, 6:24 PM EDTTornado WarningGSPCherokee36 min
Oct 8, 6:42 PM EDTSpecial Weather StatementGSPCherokee, Union48 min
Oct 8, 6:53 PM EDTSpecial Weather StatementGSPUnion37 min

Nearby

Tornado Warnings in South Carolina, 2017Every tornado warning in 2017Tornadoes in 2017

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.