Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 265, NWS Greenville-Spartanburg, SC

June 30, 2007Transylvania County, North Carolina; Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 30, 2007, 4:22 PM EDT for Transylvania County, North Carolina; Greenville County, South Carolina. It was in force for 53 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 30, 2007, 4:22 PM EDT (20:22 UTC)
Expired: Jun 30, 2007, 5:15 PM EDT
In force: 53 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

Counties Transylvania County, NC, Greenville County, SC

The radar

The Greer radar (KGSP), 38 km from the middle of the area, began a volume at 20:25 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 30, 2:46 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.4 hours before the alert went out and 257 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: 195 J/kg
Mixed-layer CIN: -209 J/kg
Mixed-layer LCL: 1079 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 15 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 Jun 30, 3:19 PM EDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jun 30, 3:19 PM EDT, 1 hour 3 minutes before

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Hazardous weather outlook, Jun 30, 5:11 AM EDT, 11 hours 11 minutes before

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In the hours before

Local storm report, Jun 30, 3:25 PM EDT, 57 minutes before

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Local storm report, Jun 30, 3:26 PM EDT, 56 minutes before

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Local storm report, Jun 30, 3:44 PM EDT, 38 minutes before

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Special weather statement, Jun 30, 3:46 PM EDT, 36 minutes before

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Local storm report, Jun 30, 3:56 PM EDT, 26 minutes before

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Special weather statement, Jun 30, 4:17 PM EDT, 5 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
Jun 30, 2:32 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	58 min
Jun 30, 3:06 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	69 min
Jun 30, 3:29 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	37 min
Jun 30, 3:35 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	70 min
Jun 30, 3:59 PM EDT	Severe Thunderstorm Warning	GSP	York	27 min
Jun 30, 4:14 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	76 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2007 Severe Thunderstorm Warnings in South 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.