Alert archive / North Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 224, NWS Greenville-Spartanburg, SC

July 22, 2017Burke County, McDowell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 22, 2017, 5:00 PM EDT for Burke County, McDowell County, North Carolina. It was in force for 45 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 22, 2017, 5:00 PM EDT (21:00 UTC)
Expired: Jul 22, 2017, 5:45 PM EDT
In force: 45 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Burke County, NC, McDowell County, NC

The radar

The Greer radar (KGSP), 98 km from the middle of the area, began a volume at 21:02 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, 9.0 hours before the alert went out and 183 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: 873 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1303 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 29 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 Jul 22, 4:57 PM EDT, 3 minutes earlier.

Area forecast discussion, Jul 22, 4:57 PM EDT, 3 minutes before

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Hazardous weather outlook, Jul 22, 4:24 PM EDT, 36 minutes before

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In the hours before

Special weather statement, Jul 22, 3:47 PM EDT, 1 hour 13 minutes before

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Special weather statement, Jul 22, 4:08 PM EDT, 52 minutes before

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Special weather statement, Jul 22, 4:20 PM EDT, 40 minutes before

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Local storm report, Jul 22, 4:46 PM EDT, 14 minutes before

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Special weather statement, Jul 22, 4:46 PM EDT, 14 minutes before

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Local storm report, Jul 22, 4:58 PM EDT, 2 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 22, 1:09 PM EDT	Special Weather Statement	GSP	Haywood	36 min
Jul 22, 1:28 PM EDT	Special Weather Statement	GSP	Caldwell	32 min
Jul 22, 2:44 PM EDT	Special Weather Statement	GSP	Caldwell	31 min
Jul 22, 3:01 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell	44 min
Jul 22, 3:12 PM EDT	Special Weather Statement	GSP	Swain	33 min
Jul 22, 3:47 PM EDT	Special Weather Statement	GSP	Burke	28 min
Jul 22, 4:08 PM EDT	Special Weather Statement	GSP	Macon	37 min
Jul 22, 4:46 PM EDT	Special Weather Statement	GSP	McDowell	29 min
Jul 22, 5:17 PM EDT	Special Weather Statement	GSP	Jackson	28 min
Jul 22, 6:10 PM EDT	Special Weather Statement	GSP	Lincoln	35 min
Jul 22, 6:20 PM EDT	Special Weather Statement	GSP	Davie	25 min
Jul 22, 6:34 PM EDT	Severe Thunderstorm Warning	GSP	Davie	18 min
Jul 22, 3:25 PM EDT	Special Weather Statement	GSP	Pickens	35 min
Jul 22, 4:20 PM EDT	Special Weather Statement	GSP	Oconee	25 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2017 Every severe thunderstorm warning in 2017

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.