Alert archive / South Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 103, NWS Wilmington, NC

June 23, 2008Horry County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jun 23, 2008, 6:55 PM EDT for Horry County, South Carolina. It was in force for 50 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: Jun 23, 2008, 6:55 PM EDT (22:55 UTC)
Expired: Jun 23, 2008, 7:45 PM EDT
In force: 50 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon

County Horry County, SC

The radar

The Wilmington radar (KLTX), 51 km from the middle of the area, began a volume at 22:57 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.

Issued	Product	Office	Lasted
Jun 23, 2:54 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.9 hours before the alert went out and 147 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: 1107 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 778 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 22, 7:54 PM EDT, 23 hours 1 minute earlier.

Area forecast discussion, Jun 22, 7:54 PM EDT, 23 hours 1 minute before

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Hazardous weather outlook, Jun 22, 7:04 PM EDT, 23 hours 51 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 7:16 AM EDT	Special Marine Warning	ILM		59 min
Jun 23, 7:52 AM EDT	Special Marine Warning	ILM		53 min
Jun 23, 8:46 AM EDT	Special Marine Warning	ILM		59 min
Jun 23, 9:50 AM EDT	Special Marine Warning	ILM		55 min
Jun 23, 2:35 PM EDT	Severe Thunderstorm Warning	ILM	Darlington, Dillon, Marlboro	55 min
Jun 23, 5:48 PM EDT	Severe Thunderstorm Warning	ILM	Horry	57 min
Jun 23, 6:16 PM EDT	Severe Thunderstorm Warning	ILM	Darlington, Marlboro	37 min
Jun 23, 6:27 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown, Horry, Marion	33 min
Jun 23, 6:51 PM EDT	Special Marine Warning	ILM		54 min
Jun 23, 6:54 PM EDT	Special Marine Warning	ILM		66 min
Jun 23, 7:47 PM EDT	Special Marine Warning	ILM		72 min
Jun 23, 5:33 PM EDT	Severe Thunderstorm Warning	ILM	Bladen, Brunswick, Columbus, Pender	42 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2008 Every severe thunderstorm warning in 2008

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.