Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 49, NWS Greenville-Spartanburg, SC

April 3, 2017Cherokee County, Chester County, York County, South Carolina; Cleveland County, Gaston County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 3, 2017, 3:31 PM EDT for Cherokee County, Chester County, York County, South Carolina; Cleveland County, Gaston County, North Carolina. It was in force for 29 min. 2 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 3, 2017, 3:31 PM EDT (19:31 UTC)
Expired: Apr 3, 2017, 4:00 PM EDT
In force: 29 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cleveland County, NC, Gaston County, NC, Cherokee County, SC, Chester County, SC, York County, SC

The radar

The Greer radar (KGSP), 87 km from the middle of the area, began a volume at 19:35 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 3, 3:43 PM EDT	TSTM WND DMG	York, SC	FEW TREES DOWN SCATTERED ACROSS THE COUNTY. TIME ESTIMATED FROM RADAR.
Apr 3, 3:56 PM EDT	TSTM WND DMG	Gastonia, NC	TREE DOWN IN ROAD IN GASTONIA. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 3, 2:07 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.5 hours before the alert went out and 176 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 671 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

930 
WUUS52 KGSP 031931
SVRGSP
NCC045-071-SCC021-023-091-032000-
/O.NEW.KGSP.SV.W.0049.170403T1931Z-170403T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
331 PM EDT MON APR 3 2017

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Southeastern Cleveland County in the Piedmont of North Carolina...
  South central Gaston County in the Piedmont of North Carolina...
  Northwestern Chester County in Upstate South Carolina...
  York County in Upstate South Carolina...
  Eastern Cherokee County in Upstate South Carolina...

* Until 400 PM EDT

* At 331 PM EDT, severe thunderstorms were located along a line
  extending from 9 miles southeast of Shelby to 9 miles west of York
  to 14 miles northeast of Union, moving east at 45 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to trees and minor damage to roofs and 
           siding. 

* Locations impacted include...
  Gastonia, York, Kings Mountain, South Gastonia, Clover, Newport,
  Town Of Lake Wylie, Ranlo, Blacksburg and Grover.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.

Conditions are favorable for the development of brief, weak
tornadoes. 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.

&&

A tornado watch remains in effect until 900 PM EDT for Upstate South
Carolina.

LAT...LON 3491 8106 3472 8146 3472 8148 3475 8148
      3476 8145 3479 8146 3481 8148 3484 8146
      3485 8147 3496 8147 3521 8155 3531 8114
      3515 8104 3513 8105 3511 8103 3509 8106
      3506 8106 3504 8104 3506 8102
TIME...MOT...LOC 1931Z 253DEG 40KT 3517 8146 3498 8140 3485 8142 

HAIL...<.75IN
WIND...60MPH
 
$$

MOORE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 11:07 AM EDT	Special Weather Statement	GSP	Oconee	23 min
Apr 3, 1:15 PM EDT	Special Weather Statement	GSP	Oconee	45 min
Apr 3, 1:43 PM EDT	Special Weather Statement	GSP	Anderson, Pickens	32 min
Apr 3, 2:09 PM EDT	Special Weather Statement	GSP	Anderson, Greenville	36 min
Apr 3, 2:12 PM EDT	Tornado Warning	GSP	Greenville, Pickens	18 min
Apr 3, 2:28 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Laurens, Spartanburg	32 min
Apr 3, 2:44 PM EDT	Severe Thunderstorm Warning	GSP	Greenwood, Laurens, Spartanburg, Union	31 min
Apr 3, 3:02 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg, Union	28 min
Apr 3, 3:08 PM EDT	Severe Thunderstorm Warning	GSP	Laurens, Spartanburg, Union	37 min
Apr 3, 3:27 PM EDT	Tornado Warning	GSP	Chester, Union	33 min
Apr 3, 3:46 PM EDT	Severe Thunderstorm Warning	GSP	Chester, York	44 min
Apr 3, 3:52 PM EDT	Severe Thunderstorm Warning	GSP	York	38 min
Apr 3, 4:05 PM EDT	Severe Thunderstorm Warning	GSP	York	25 min
Apr 3, 12:38 PM EDT	Special Weather Statement	GSP	Macon	37 min
Apr 3, 1:20 PM EDT	Special Weather Statement	GSP	Jackson	40 min
Apr 3, 2:53 PM EDT	Areal Flood Advisory	GSP	Henderson	112 min
Apr 3, 3:07 PM EDT	Areal Flood Advisory	GSP	Burke, McDowell, Rutherford	3 hr
Apr 3, 3:57 PM EDT	Areal Flood Advisory	GSP	Cabarrus, Mecklenburg	2 hr
Apr 3, 4:24 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg, Union	51 min
Apr 3, 4:54 PM EDT	Areal Flood Advisory	GSP	Henderson	8 hr
Apr 3, 5:06 PM EDT	Areal Flood Advisory	GSP	Henderson, Transylvania	6 hr

Nearby

Severe Thunderstorm Warnings in South Carolina, 2017 Severe Thunderstorm Warnings in North Carolina, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.