Alert archive / South Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 372, NWS Greenville-Spartanburg, SC

July 31, 2008Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 31, 2008, 5:53 PM EDT for Laurens County, South Carolina. It was in force for 67 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 31, 2008, 5:53 PM EDT (21:53 UTC)
Expired: Jul 31, 2008, 7:00 PM EDT
In force: 67 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

County Laurens County, SC

The radar

The Greer radar (KGSP), 49 km from the middle of the area, began a volume at 21:56 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, 9.9 hours before the alert went out and 256 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: 1410 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 786 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: -17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 4:09 PM EDT, 1 hour 44 minutes earlier.

Area forecast discussion, Jul 31, 4:09 PM EDT, 1 hour 44 minutes before

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Hazardous weather outlook, Jul 31, 3:58 PM EDT, 1 hour 55 minutes before

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In the hours before

Special weather statement, Jul 31, 3:47 PM EDT, 2 hours 6 minutes before

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Local storm report, Jul 31, 4:00 PM EDT, 1 hour 53 minutes before

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Special weather statement, Jul 31, 4:08 PM EDT, 1 hour 45 minutes before

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Special weather statement, Jul 31, 4:40 PM EDT, 1 hour 13 minutes before

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Special weather statement, Jul 31, 5:08 PM EDT, 45 minutes before

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Local storm report, Jul 31, 5:14 PM EDT, 39 minutes before

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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 31, 2:21 PM EDT	Severe Thunderstorm Warning	GSP	Davie, Iredell, Rowan	54 min
Jul 31, 2:22 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Polk, Rutherford	53 min
Jul 31, 2:28 PM EDT	Areal Flood Advisory	GSP	Davie, Iredell	2 hr
Jul 31, 2:30 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Catawba, Cleveland, Gaston, Lincoln	60 min
Jul 31, 2:31 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Catawba, Iredell, Lincoln, Mecklenburg, Rowan	59 min
Jul 31, 4:04 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Union	25 min
Jul 31, 3:08 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	51 min
Jul 31, 4:15 PM EDT	Severe Thunderstorm Warning	GSP	Chester	30 min
Jul 31, 4:27 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Pickens	63 min
Jul 31, 4:45 PM EDT	Severe Thunderstorm Warning	GSP	Laurens, Spartanburg	60 min
Jul 31, 5:38 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenville, Greenwood, Laurens	67 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.