Alert archive / North Carolina / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 221, NWS Greenville-Spartanburg, SC

June 25, 2007Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 25, 2007, 7:20 PM EDT for Union County, North Carolina. It was in force for 25 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 25, 2007, 7:20 PM EDT (23:20 UTC)
Expired: Jun 25, 2007, 7:45 PM EDT
In force: 25 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County Union County, NC

The radar

The Columbia radar (KCAE), 128 km from the middle of the area, began a volume at 23:22 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, 11.3 hours before the alert went out and 134 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: 1 J/kg
Mixed-layer CIN: -246 J/kg
Mixed-layer LCL: 924 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 35 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 25, 7:00 PM EDT, 20 minutes earlier.

Area forecast discussion, Jun 25, 7:00 PM EDT, 20 minutes before

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Hazardous weather outlook, Jun 25, 4:27 PM EDT, 2 hours 53 minutes before

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In the hours before

Local storm report, Jun 25, 6:33 PM EDT, 47 minutes before

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Local storm report, Jun 25, 6:39 PM EDT, 41 minutes before

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Local storm report, Jun 25, 6:41 PM EDT, 39 minutes before

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Special weather statement, Jun 25, 6:58 PM EDT, 22 minutes before

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Special weather statement, Jun 25, 7:04 PM EDT, 16 minutes before

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Special weather statement, Jun 25, 7:08 PM EDT, 12 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 24, 8:03 PM EDT	Severe Thunderstorm Warning	GSP	Davie	72 min
Jun 24, 8:05 PM EDT	Severe Thunderstorm Warning	GSP	Rowan	74 min
Jun 24, 8:40 PM EDT	Severe Thunderstorm Warning	GSP	Mitchell	65 min
Jun 24, 9:29 PM EDT	Severe Thunderstorm Warning	GSP	Burke	38 min
Jun 24, 9:54 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Rutherford	66 min
Jun 24, 10:58 PM EDT	Severe Thunderstorm Warning	GSP	Gaston	62 min
Jun 24, 11:33 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg	57 min
Jun 25, 1:49 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	56 min
Jun 25, 2:23 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	67 min
Jun 25, 4:18 PM EDT	Air Stagnation Advisory	GSP	Alexander, Burke, Cabarrus, Caldwell, Catawba, Davie and 6 more	29 hr
Jun 25, 7:10 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg	50 min
Jun 25, 7:14 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland	52 min
Jun 25, 7:41 PM EDT	Severe Thunderstorm Warning	GSP	Rowan	79 min
Jun 25, 7:58 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus	54 min
Jun 24, 8:17 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	43 min
Jun 24, 8:23 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	52 min
Jun 25, 12:19 AM EDT	Severe Thunderstorm Warning	GSP	York	56 min
Jun 25, 3:56 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville	64 min
Jun 25, 4:24 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	66 min
Jun 25, 4:33 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	57 min
Jun 25, 4:37 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	53 min
Jun 25, 5:13 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood	62 min
Jun 25, 5:29 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Laurens	61 min
Jun 25, 5:36 PM EDT	Severe Thunderstorm Warning	GSP	Pickens	54 min
Jun 25, 5:42 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	63 min
Jun 25, 6:09 PM EDT	Severe Thunderstorm Warning	GSP	Chester	66 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.