Alert archive / South Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Wilmington, NC

July 31, 2011Darlington County, South Carolina

NWS Wilmington, NC issued this special weather statement at Jul 31, 2011, 9:02 PM EDT for Darlington County, South Carolina. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 31, 2011, 9:02 PM EDT (01:02 UTC)
Expired: Jul 31, 2011, 10:00 PM EDT
In force: 58 min
Issued by: NWS Wilmington, NC

County Darlington County, SC

The radar

The Columbia radar (KCAE), 112 km from the middle of the area, began a volume at 01:02 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 00:00Z, 1.0 hours before the alert went out and 194 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 837 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: -51 m²/s²
Significant tornado parameter: -0.2
Supercell composite: -1.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 9:42 PM EDT	Areal Flood Advisory	ILM	Darlington, Florence	108 min

Nearby

Special Weather Statements in South Carolina, 2011 Every special weather statement in 2011

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.