Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 92, NWS Columbia, SC

May 29, 2017Lexington County, Richland County, Saluda County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 29, 2017, 7:11 PM EDT for Lexington County, Richland County, Saluda County, South Carolina. It was in force for 64 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: May 29, 2017, 7:11 PM EDT (23:11 UTC)
Expired: May 29, 2017, 8:15 PM EDT
In force: 64 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 1.25 in
Wind: 70.0 mph

Counties Lexington County, SC, Richland County, SC, Saluda County, SC

The radar

The Columbia radar (KCAE), 7 km from the middle of the area, began a volume at 23:10 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
May 29, 7:40 PM EDT	TSTM WND DMG	Seven Oaks, SC	TREE DOWN ON STRUCTURE 201 ST ANDREWS RD.
May 29, 7:40 PM EDT	TSTM WND DMG	Seven Oaks, SC	TREE DOWN ON STRUCTURE, 201 ST. ANDREWS ROAD. TIME ESTIMATED BY RADAR.
May 29, 7:40 PM EDT	TSTM WND DMG	Seven Oaks, SC	TREE DOWN ON STRUCTURE, ROOF DAMAGE REPORTED AT 201 ST ANDREWS ROAD.

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
May 29, 3:15 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.2 hours before the alert went out and 161 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: 156 J/kg
Mixed-layer CIN: -337 J/kg
Mixed-layer LCL: 1284 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

525 
WUUS52 KCAE 292311
SVRCAE
SCC063-079-081-300015-
/O.NEW.KCAE.SV.W.0092.170529T2311Z-170530T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
711 PM EDT MON MAY 29 2017

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Central Lexington County in central South Carolina...
  Southeastern Saluda County in central South Carolina...
  Central Richland County in central South Carolina...

* Until 815 PM EDT

* At 710 PM EDT, a severe thunderstorm was located near Leesville, or
  near Batesburg, moving east at 35 mph.

  HAZARD...70 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings. 

* Locations impacted include...
  Columbia, Lexington, West Columbia, Cayce, Irmo, Forest Acres,
  Springdale, Dentsville, Oak Grove, St. Andrews, Batesburg, Red
  Bank, Woodfields, Batesburg-Leesville, Arcadia Lakes, Leesville,
  Woodfield, Fort Jackson, Five Points and Gilbert.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This is a DANGEROUS SITUATION. This storm is producing widespread 
wind damage across Edgefield County. SEEK SHELTER NOW inside a 
sturdy structure and stay away from windows!

&&

LAT...LON 3421 8093 3401 8079 3384 8084 3395 8107
      3387 8157 3399 8166
TIME...MOT...LOC 2310Z 259DEG 30KT 3390 8146 

HAIL...1.25IN
WIND...70MPH
 
$$

awp

1 follow-up statement

984 
WWUS52 KCAE 292317
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
717 PM EDT MON MAY 29 2017

SCC063-079-081-300015-
/O.CON.KCAE.SV.W.0092.000000T0000Z-170530T0015Z/
Lexington SC-Saluda SC-Richland SC-
717 PM EDT MON MAY 29 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR CENTRAL LEXINGTON...SOUTHEASTERN SALUDA AND CENTRAL RICHLAND
COUNTIES...

At 716 PM EDT, a severe thunderstorm was located near Leesville, or 8
miles east of Batesburg, moving east at 35 mph.

This is a very dangerous storm.

HAZARD...80 mph wind gusts and golf ball size hail. 

SOURCE...Radar indicated. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely. 

Locations impacted include...
Columbia, Lexington, West Columbia, Cayce, Irmo, Forest Acres,
Springdale, Dentsville, Oak Grove, St. Andrews, Batesburg, Red Bank,
Woodfields, Batesburg-Leesville, Arcadia Lakes, Leesville, Woodfield,
Fort Jackson, Five Points and Gilbert.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This is a DANGEROUS SITUATION. This storm is producing widespread 
wind damage across western Lexington County. Seek shelter now inside 
a sturdy structure and stay away from windows.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.

&&

LAT...LON 3421 8093 3401 8079 3384 8084 3395 8107
      3387 8157 3399 8166
TIME...MOT...LOC 2316Z 260DEG 29KT 3390 8140 

HAIL...1.75IN
WIND...80MPH
 
$$

awp

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 28, 8:09 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Orangeburg, Sumter	42 min
May 28, 8:44 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Sumter	31 min
May 29, 4:42 PM EDT	Special Weather Statement	CAE	McCormick	63 min
May 29, 4:51 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	54 min
May 29, 5:11 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	64 min
May 29, 5:35 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	55 min
May 29, 5:53 PM EDT	Special Weather Statement	CAE	Lexington	52 min
May 29, 6:12 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Edgefield, McCormick, Saluda	63 min
May 29, 6:15 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, Lexington, Newberry, Saluda	60 min
May 29, 6:31 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	59 min
May 29, 6:55 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Calhoun, Lexington, Richland	65 min
May 29, 7:32 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee, Richland, Sumter	28 min
May 29, 7:48 PM EDT	Flash Flood Warning	CAE	Lexington, Richland	57 min
May 29, 7:52 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee, Richland, Sumter	53 min

Nearby

Severe Thunderstorm Warnings in South 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.