Alert archive / South Carolina / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 55, NWS Wilmington, NC

July 29, 2013Dillon County, South Carolina; Robeson County, North Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jul 29, 2013, 6:26 PM EDT for Dillon County, South Carolina; Robeson County, North Carolina. It was in force for 34 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
Jul 29, 2013, 6:26 PM EDT (22:26 UTC)
Expired
Jul 29, 2013, 7:00 PM EDT
In force
34 min
Issued by
NWS Wilmington, NC
Area
Storm-based polygon

Counties Robeson County, NC, Dillon County, SC

The radar

The Wilmington radar (KLTX), 95 km from the middle of the area, began a volume at 22:30 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, 10.4 hours before the alert went out and 193 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 2013-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1843 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 2013-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
1843 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
946 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 10:15 PM EDTAreal Flood AdvisoryILMDarlington2 hr
Jul 28, 10:37 PM EDTSpecial Weather StatementILMDarlington38 min
Jul 29, 9:36 AM EDTRiver Flood WarningILMFlorence, Marion7 days
Jul 29, 2:22 PM EDTSpecial Weather StatementILMHorry23 min
Jul 29, 3:56 PM EDTAreal Flood AdvisoryILMHorry49 min
Jul 29, 4:11 PM EDTSpecial Weather StatementILMGeorgetown49 min
Jul 29, 4:51 PM EDTAreal Flood WarningILMGeorgetown, Horry3 hr
Jul 29, 6:17 PM EDTSpecial Weather StatementILMDillon28 min
Jul 29, 12:44 PM EDTSpecial Weather StatementILMColumbus31 min
Jul 29, 1:15 PM EDTSpecial Weather StatementILMPender30 min
Jul 29, 1:23 PM EDTSpecial Weather StatementILMBrunswick22 min
Jul 29, 1:45 PM EDTSpecial Weather StatementILMPender30 min
Jul 29, 2:02 PM EDTSpecial Weather StatementILMBrunswick43 min
Jul 29, 2:17 PM EDTSpecial Weather StatementILMNew Hanover28 min
Jul 29, 2:47 PM EDTSpecial Weather StatementILMNew Hanover13 min
Jul 29, 2:57 PM EDTSpecial Weather StatementILMPender33 min
Jul 29, 5:25 PM EDTSpecial Weather StatementILMCumberland35 min
Jul 29, 6:06 PM EDTSpecial Weather StatementILMBladen24 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2013Severe Thunderstorm Warnings in North Carolina, 2013Every severe thunderstorm warning in 2013

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.