Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 239, NWS Greenville-Spartanburg, SC

July 24, 2014Buncombe County, Henderson County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 24, 2014, 2:28 PM EDT for Buncombe County, Henderson County, North Carolina. It was in force for 62 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 24, 2014, 2:28 PM EDT (18:28 UTC)
Expired: Jul 24, 2014, 3:30 PM EDT
In force: 62 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Buncombe County, NC, Henderson County, NC

The radar

The Greer radar (KGSP), 71 km from the middle of the area, began a volume at 18:27 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, 6.5 hours before the alert went out and 244 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: 694 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 871 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.7

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 24, 2:14 PM EDT, 14 minutes earlier.

Area forecast discussion, Jul 24, 2:14 PM EDT, 14 minutes before

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Hazardous weather outlook, Jul 24, 6:14 AM EDT, 8 hours 14 minutes before

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In the hours before

Special weather statement, Jul 24, 1:13 PM EDT, 1 hour 15 minutes before

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Special weather statement, Jul 24, 1:28 PM EDT, 1 hour before

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Special weather statement, Jul 24, 1:29 PM EDT, 59 minutes before

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Special weather statement, Jul 24, 1:34 PM EDT, 54 minutes before

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Special weather statement, Jul 24, 2:13 PM EDT, 15 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 24, 8:03 AM EDT	Special Weather Statement	GSP	Haywood	42 min
Jul 24, 1:13 PM EDT	Special Weather Statement	GSP	Caldwell	32 min
Jul 24, 2:13 PM EDT	Special Weather Statement	GSP	Henderson	32 min
Jul 24, 3:26 PM EDT	Special Weather Statement	GSP	Polk	49 min
Jul 24, 3:58 PM EDT	Special Weather Statement	GSP	Polk	47 min
Jul 24, 4:16 PM EDT	Special Weather Statement	GSP	Catawba, Lincoln	44 min
Jul 24, 4:17 PM EDT	Special Weather Statement	GSP	Burke	43 min
Jul 24, 4:38 PM EDT	Severe Thunderstorm Warning	GSP	Union	34 min
Jul 24, 4:44 PM EDT	Special Weather Statement	GSP	Henderson	46 min
Jul 24, 5:01 PM EDT	Special Weather Statement	GSP	Burke	44 min
Jul 24, 5:13 PM EDT	Special Weather Statement	GSP	Union	47 min
Jul 24, 5:32 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell, Catawba	39 min
Jul 24, 5:36 PM EDT	Special Weather Statement	GSP	Cabarrus	39 min
Jul 24, 5:46 PM EDT	Special Weather Statement	GSP	Mecklenburg	44 min
Jul 24, 5:54 PM EDT	Severe Thunderstorm Warning	GSP	Catawba, Lincoln	28 min
Jul 24, 6:03 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Iredell, Mecklenburg, Rowan	57 min
Jul 24, 6:18 PM EDT	Severe Thunderstorm Warning	GSP	Catawba, Iredell, Lincoln, Mecklenburg	24 min
Jul 24, 6:39 PM EDT	Special Weather Statement	GSP	Burke	51 min
Jul 24, 6:43 PM EDT	Special Weather Statement	GSP	Mecklenburg	47 min
Jul 24, 6:55 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Catawba, Lincoln	39 min
Jul 24, 7:01 PM EDT	Special Weather Statement	GSP	Davie	44 min
Jul 24, 1:28 PM EDT	Special Weather Statement	GSP	Pickens	32 min
Jul 24, 1:29 PM EDT	Special Weather Statement	GSP	Oconee	31 min
Jul 24, 1:34 PM EDT	Special Weather Statement	GSP	York	26 min
Jul 24, 2:35 PM EDT	Special Weather Statement	GSP	Oconee	40 min
Jul 24, 2:55 PM EDT	Special Weather Statement	GSP	Pickens	50 min
Jul 24, 4:15 PM EDT	Special Weather Statement	GSP	York	45 min
Jul 24, 4:26 PM EDT	Special Weather Statement	GSP	Pickens	49 min
Jul 24, 5:00 PM EDT	Special Weather Statement	GSP	York	45 min
Jul 24, 6:51 PM EDT	Special Weather Statement	GSP	York	39 min
Jul 24, 4:07 PM EDT	Special Weather Statement	GSP	Stephens	53 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2014 Every severe thunderstorm warning in 2014

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.