Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 229, NWS Greenville-Spartanburg, SC

July 10, 2014Avery County, Burke County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 10, 2014, 1:34 PM EDT for Avery County, Burke County, North Carolina. It was in force for 29 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 10, 2014, 1:34 PM EDT (17:34 UTC)
Expired: Jul 10, 2014, 2:03 PM EDT
In force: 29 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Avery County, NC, Burke County, NC

The radar

The Greer radar (KGSP), 120 km from the middle of the area, began a volume at 17:34 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, 5.6 hours before the alert went out and 173 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: 340 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1039 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 9, 7:52 PM EDT, 17 hours 42 minutes earlier.

Area forecast discussion, Jul 9, 7:52 PM EDT, 17 hours 42 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 9, 8:40 PM EDT	Special Weather Statement	GSP	Rutherford	50 min
Jul 9, 9:05 PM EDT	Special Weather Statement	GSP	Buncombe	40 min
Jul 9, 10:27 PM EDT	Special Weather Statement	GSP	McDowell, Polk, Rutherford	48 min
Jul 10, 12:22 PM EDT	Special Weather Statement	GSP	Yancey	23 min
Jul 10, 1:05 PM EDT	Special Weather Statement	GSP	Avery, Mitchell, Yancey	25 min
Jul 10, 1:16 PM EDT	Special Weather Statement	GSP	Henderson	29 min
Jul 10, 1:45 PM EDT	Special Weather Statement	GSP	Henderson	30 min
Jul 10, 1:59 PM EDT	Special Weather Statement	GSP	Caldwell	31 min
Jul 10, 2:16 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	21 min
Jul 10, 2:42 PM EDT	Special Weather Statement	GSP	Buncombe	48 min
Jul 10, 3:21 PM EDT	Special Weather Statement	GSP	Burke	39 min
Jul 10, 4:27 PM EDT	Special Weather Statement	GSP	Henderson	48 min
Jul 10, 4:44 PM EDT	Special Weather Statement	GSP	Iredell	46 min
Jul 10, 1:55 PM EDT	Special Weather Statement	GSP	Pickens	35 min
Jul 10, 2:07 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	53 min
Jul 10, 2:57 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	63 min
Jul 10, 3:31 PM EDT	Special Weather Statement	GSP	Greenville, Pickens	44 min
Jul 10, 3:53 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens, Spartanburg	44 min
Jul 10, 5:36 PM EDT	Special Weather Statement	GSP	Union	39 min
Jul 10, 5:43 PM EDT	Special Weather Statement	GSP	Laurens	47 min
Jul 10, 6:32 PM EDT	Special Weather Statement	GSP	Laurens	43 min
Jul 10, 2:47 PM EDT	Special Weather Statement	GSP	Stephens	28 min
Jul 10, 3:10 PM EDT	Special Weather Statement	GSP	Stephens	50 min
Jul 10, 5:52 PM EDT	Special Weather Statement	GSP	Elbert	38 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.