Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 163, NWS Columbia, SC

September 10, 2018Chesterfield County, Kershaw County, Lancaster County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Sep 10, 2018, 3:12 PM EDT for Chesterfield County, Kershaw County, Lancaster County, South Carolina. It was in force for 48 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
Sep 10, 2018, 3:12 PM EDT (19:12 UTC)
Expired
Sep 10, 2018, 4:00 PM EDT
In force
48 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chesterfield County, SC, Kershaw County, SC, Lancaster County, SC

The radar

The Columbia radar (KCAE), 89 km from the middle of the area, began a volume at 19:14 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.2 hours before the alert went out and 178 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, Greensboro/Hi Pt, NC at 12:00Z on 2018-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 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, Greensboro/Hi Pt, NC at 12:00Z on 2018-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
35 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
475 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
129 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
Sep 10, 12:49 PM EDTSpecial Weather StatementCAERichland41 min
Sep 10, 1:29 PM EDTSpecial Weather StatementCAEFairfield31 min
Sep 10, 1:50 PM EDTSpecial Weather StatementCAEBamberg25 min
Sep 10, 2:03 PM EDTSpecial Weather StatementCAECalhoun27 min
Sep 10, 2:16 PM EDTSpecial Weather StatementCAEFairfield29 min
Sep 10, 2:31 PM EDTSpecial Weather StatementCAEFairfield, Lancaster29 min
Sep 10, 2:40 PM EDTSpecial Weather StatementCAEKershaw35 min
Sep 10, 3:07 PM EDTSpecial Weather StatementCAEKershaw23 min
Sep 10, 3:31 PM EDTSpecial Weather StatementCAELee29 min
Sep 10, 3:47 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee43 min
Sep 10, 4:31 PM EDTSpecial Weather StatementCAEOrangeburg29 min
Sep 10, 5:31 PM EDTSevere Thunderstorm WarningCAEAiken, Edgefield44 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2018Every severe thunderstorm warning in 2018

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.