Alert archive / South Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 106, NWS Columbia, SC

May 20, 2006Orangeburg County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 20, 2006, 5:59 PM EDT for Orangeburg County, South Carolina. It was in force for 61 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 20, 2006, 5:59 PM EDT (21:59 UTC)
Expired
May 20, 2006, 7:00 PM EDT
In force
61 min
Issued by
NWS Columbia, SC
Area
Counties, with a storm outline in the text

County Orangeburg County, SC

The radar

The Columbia radar (KCAE), 64 km from the middle of the area, began a volume at 22:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 20, 3:34 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.0 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 2006-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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 2006-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 258 square meters per square second.19395878Sfc1 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
8 J/kg
Mixed-layer CIN
-289 J/kg
Mixed-layer LCL
2105 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
258 m²/s²
0-3 km storm-relative helicity
293 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 20, 3:08 AM EDTLake Wind AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more17 hr
May 20, 3:55 PM EDTSevere Thunderstorm WarningCAEEdgefield, McCormick65 min
May 20, 4:20 PM EDTSevere Thunderstorm WarningCAELancaster55 min
May 20, 4:40 PM EDTSevere Thunderstorm WarningCAEAiken80 min
May 20, 4:59 PM EDTSevere Thunderstorm WarningCAEOrangeburg76 min
May 20, 5:07 PM EDTSevere Thunderstorm WarningCAEClarendon38 min
May 20, 5:14 PM EDTSevere Thunderstorm WarningCAELancaster46 min
May 20, 5:22 PM EDTSevere Thunderstorm WarningCAEChesterfield45 min
May 20, 5:55 PM EDTSevere Thunderstorm WarningCAENewberry, Saluda65 min
May 20, 6:11 PM EDTSevere Thunderstorm WarningCAENewberry49 min
May 20, 6:18 PM EDTSevere Thunderstorm WarningCAELexington, Richland72 min
May 20, 6:27 PM EDTSevere Thunderstorm WarningCAEFairfield63 min
May 20, 6:38 PM EDTSevere Thunderstorm WarningCAEAiken, Saluda67 min
May 20, 7:27 PM EDTSevere Thunderstorm WarningCAECalhoun48 min
May 20, 7:31 PM EDTSevere Thunderstorm WarningCAESumter44 min
May 20, 7:39 PM EDTSevere Thunderstorm WarningCAEClarendon, Orangeburg, Sumter54 min
May 20, 7:42 PM EDTSevere Thunderstorm WarningCAENewberry33 min
May 20, 7:49 PM EDTSevere Thunderstorm WarningCAELee41 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2006Every severe thunderstorm warning in 2006

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.