Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Columbia, SC

May 24, 2018Orangeburg County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 24, 2018, 3:21 PM EDT for Orangeburg County, South Carolina. It was in force for 17 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
May 24, 2018, 3:21 PM EDT (19:21 UTC)
Expired
May 24, 2018, 3:38 PM EDT
In force
17 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Orangeburg County, SC

The radar

The Columbia radar (KCAE), 64 km from the middle of the area, began a volume at 19:22 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, 7.4 hours before the alert went out and 96 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 2018-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 152 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 2018-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
152 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
978 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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
May 24, 2:50 PM EDTSpecial Weather StatementCAESumter40 min
May 24, 3:05 PM EDTAreal Flood AdvisoryCAEAiken, Orangeburg55 min
May 24, 3:54 PM EDTAreal Flood AdvisoryCAEOrangeburg66 min
May 24, 4:06 PM EDTAreal Flood AdvisoryCAEAiken114 min
May 24, 4:09 PM EDTAreal Flood AdvisoryCAENewberry2 hr
May 24, 4:14 PM EDTAreal Flood AdvisoryCAELee2 hr
May 24, 4:22 PM EDTSpecial Weather StatementCAENewberry23 min
May 24, 4:32 PM EDTAreal Flood AdvisoryCAEBamberg, Barnwell118 min
May 24, 4:39 PM EDTAreal Flood AdvisoryCAEFairfield51 min
May 24, 5:25 PM EDTSpecial Weather StatementCAEMcCormick20 min
May 24, 5:53 PM EDTAreal Flood AdvisoryCAENewberry52 min
May 24, 4:47 PM EDTSpecial Weather StatementCAEColumbia, Richmond28 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.