Alert archive / South Carolina / Tornado Warnings in 2020

Tornado Warning 49, NWS Greenville-Spartanburg, SC

April 29, 2020Anderson County, South Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Apr 29, 2020, 6:18 PM EDT for Anderson County, South Carolina. It was in force for 12 min. 1 report 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 29, 2020, 6:18 PM EDT (22:18 UTC)
Expired: Apr 29, 2020, 6:30 PM EDT
In force: 12 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Anderson County, SC

The radar

The Greer radar (KGSP), 58 km from the middle of the area, began a volume at 22:21 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 29, 6:27 PM EDT	TSTM WND DMG	5 E Sandy Springs, SC	BROADCAST MEDIA RELAYED REPORT OF TREES DOWN ALONG HARRIS BRIDGE ROAD.

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

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.3 hours before the alert went out and 211 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: 2010 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 259 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

726 
WFUS52 KGSP 292218
TORGSP
SCC007-292230-
/O.NEW.KGSP.TO.W.0049.200429T2218Z-200429T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
618 PM EDT Wed Apr 29 2020

The National Weather Service in Greenville-Spartanburg has issued a

* Tornado Warning for...
  Northwestern Anderson County in Upstate South Carolina...

* Until 630 PM EDT.
    
* At 618 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles south of Clemson, or 5 miles west of Northlake,
  moving northeast 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...
  Northlake and Pendleton around 620 PM EDT.

Other locations impacted by this dangerous thunderstorm include Sandy
Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3457 8288 3474 8266 3462 8256 3450 8279
TIME...MOT...LOC 2218Z 230DEG 38KT 3457 8277 

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

$$

MOORE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 3:49 PM EDT	Special Weather Statement	GSP	Greenville, Oconee, Pickens	41 min
Apr 29, 4:33 PM EDT	Special Weather Statement	GSP	Anderson, Greenville, Pickens	42 min
Apr 29, 5:37 PM EDT	Special Weather Statement	GSP	Anderson, Oconee, Pickens	38 min
Apr 29, 7:48 PM EDT	Areal Flood Advisory	GSP	Greenville, Spartanburg	6 hr

Nearby

Tornado Warnings in South Carolina, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.