Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 343, NWS Greenville-Spartanburg, SC

August 5, 2007Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 5, 2007, 4:41 PM EDT for Iredell County, North Carolina. It was in force for 28 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: Aug 5, 2007, 4:41 PM EDT (20:41 UTC)
Expired: Aug 5, 2007, 5:09 PM EDT
In force: 28 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County Iredell County, NC

The radar

The Roanoke radar (KFCX), 146 km from the middle of the area, began a volume at 20:44 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 12:00Z, 8.7 hours before the alert went out and 93 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: 272 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1629 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Aug 5, 3:29 PM EDT, 1 hour 12 minutes earlier.

Area forecast discussion, Aug 5, 3:29 PM EDT, 1 hour 12 minutes before

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Hazardous weather outlook, Aug 5, 4:33 PM EDT, 8 minutes before

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In the hours before

Local storm report, Aug 5, 3:23 PM EDT, 1 hour 18 minutes before

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Local storm report, Aug 5, 3:29 PM EDT, 1 hour 12 minutes before

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Local storm report, Aug 5, 3:45 PM EDT, 56 minutes before

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Local storm report, Aug 5, 4:10 PM EDT, 31 minutes before

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Special weather statement, Aug 5, 4:16 PM EDT, 25 minutes before

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Special weather statement, Aug 5, 4:28 PM EDT, 13 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
Aug 5, 2:07 PM EDT	Severe Thunderstorm Warning	GSP	Catawba	53 min
Aug 5, 3:52 PM EDT	Air Stagnation Advisory	GSP	Alexander, Burke, Cabarrus, Caldwell, Catawba, Davie and 6 more	29 hr
Aug 5, 3:31 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	59 min
Aug 5, 3:40 PM EDT	Severe Thunderstorm Warning	GSP	Pickens	29 min
Aug 5, 2:43 PM EDT	Severe Thunderstorm Warning	GSP	Stephens	37 min
Aug 5, 3:02 PM EDT	Severe Thunderstorm Warning	GSP	Franklin	32 min
Aug 5, 3:17 PM EDT	Severe Thunderstorm Warning	GSP	Hart	58 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2007 Every severe thunderstorm warning in 2007

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.