Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 100, NWS Columbia, SC

June 15, 2017Chesterfield County, Kershaw County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 15, 2017, 6:40 PM EDT for Chesterfield County, Kershaw County, South Carolina. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 15, 2017, 6:40 PM EDT (22:40 UTC)
Expired
Jun 15, 2017, 7:30 PM EDT
In force
50 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chesterfield County, SC, Kershaw County, SC

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.7 hours before the alert went out and 180 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 2017-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 783 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2017-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
783 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
962 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:09 PM EDTSpecial Weather StatementCAELancaster36 min
Jun 14, 8:39 PM EDTSpecial Weather StatementCAELancaster51 min
Jun 14, 9:53 PM EDTSpecial Weather StatementCAEKershaw37 min
Jun 15, 4:11 PM EDTSpecial Weather StatementCAEFairfield49 min
Jun 15, 5:19 PM EDTSpecial Weather StatementCAEChesterfield26 min
Jun 15, 5:21 PM EDTSpecial Weather StatementCAEKershaw39 min
Jun 15, 5:24 PM EDTSpecial Weather StatementCAESumter36 min
Jun 15, 6:01 PM EDTSpecial Weather StatementCAESumter29 min
Jun 15, 6:24 PM EDTSpecial Weather StatementCAEChesterfield51 min
Jun 15, 6:54 PM EDTSpecial Weather StatementCAEMcCormick51 min
Jun 15, 7:06 PM EDTSpecial Weather StatementCAELexington, Richland24 min
Jun 15, 7:44 PM EDTSpecial Weather StatementCAECalhoun46 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2017Every 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; the sounding from the Mesonet's radiosonde archive.