Alert archive / South Carolina / Tornado Warnings in 2017

Tornado Warning 11, NWS Wilmington, NC

May 24, 2017Darlington County, South Carolina

NWS Wilmington, NC issued this tornado warning at May 24, 2017, 3:31 PM EDT for Darlington County, South Carolina. It was in force for 12 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
May 24, 2017, 3:31 PM EDT (19:31 UTC)
Expired
May 24, 2017, 3:43 PM EDT
In force
12 min
Issued by
NWS Wilmington, NC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Darlington County, SC

The radar

The Columbia radar (KCAE), 130 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.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 7.5 hours before the alert went out and 170 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, Charleston AFB, SC at 12:00Z on 2017-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 335 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, Charleston AFB, SC at 12:00Z on 2017-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 square meters per square second.1939587897117Sfc1 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
335 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
723 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

442 
WFUS52 KILM 241931
TORILM
SCC031-242000-
/O.NEW.KILM.TO.W.0011.170524T1931Z-170524T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington NC
331 PM EDT WED MAY 24 2017

The National Weather Service in Wilmington has issued a

* Tornado Warning for...
  Darlington County in northeastern South Carolina...

* Until 400 PM EDT
    
* At 330 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Oates, or 9 miles southwest of Darlington, moving
  northeast at 35 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Expect damage to mobile homes, roofs, and vehicles. 

* Locations impacted include...
  Hartsville, Darlington, Lamar, Dovesville, Mont Clare, Auburn,
  Darlington Raceway, Florence Darlington Technical College Main
  Campus, Mechanicsville, Oates, Floyd, North Hartsville, Society
  Hill and Mcleod Medical Center.

This includes the following highways...
 Interstate 20 between mile markers 125 and 139.
 Interstate 95 IN South Carolina near mile marker 146.

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.

&&

LAT...LON 3449 8003 3450 7999 3449 7996 3449 7989
      3453 7984 3449 7981 3449 7979 3452 7976
      3449 7973 3446 7975 3444 7975 3442 7972
      3439 7972 3441 7970 3440 7968 3437 7967
      3436 7969 3433 7967 3413 8000 3418 8013
TIME...MOT...LOC 1930Z 208DEG 30KT 3423 8000 

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

$$

JDW
1 follow-up statement
724 
WWUS52 KILM 241943
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
343 PM EDT WED MAY 24 2017

SCC031-241952-
/O.CAN.KILM.TO.W.0011.000000T0000Z-170524T2000Z/
Darlington SC-
343 PM EDT WED MAY 24 2017

...THE TORNADO WARNING FOR DARLINGTON COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 3449 8003 3450 7999 3449 7996 3449 7989
      3453 7984 3449 7981 3449 7979 3452 7976
      3449 7973 3446 7975 3444 7975 3442 7972
      3439 7972 3441 7970 3440 7968 3437 7967
      3436 7969 3433 7967 3413 8000 3418 8013
TIME...MOT...LOC 1941Z 208DEG 30KT 3433 7994 

$$

JDW

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 9:32 PM EDTSpecial Marine WarningILM58 min
May 24, 2:44 PM EDTSpecial Weather StatementILMWilliamsburg61 min
May 24, 3:24 PM EDTSpecial Weather StatementILMDarlington, Dillon, Florence, Marion, Marlboro66 min
May 24, 3:46 PM EDTSpecial Marine WarningILM89 min
May 24, 4:06 PM EDTSpecial Weather StatementILMMarlboro39 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.