Alert archive / North Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 302, NWS Greenville-Spartanburg, SC

August 17, 2018Burke County, McDowell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 17, 2018, 3:31 PM EDT for Burke County, McDowell County, North Carolina. It was in force for 44 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: Aug 17, 2018, 3:31 PM EDT (19:31 UTC)
Expired: Aug 17, 2018, 4:15 PM EDT
In force: 44 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 19:32 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, 7.5 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: 974 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 16 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 Aug 17, 2:40 PM EDT, 51 minutes earlier.

Area forecast discussion, Aug 17, 2:40 PM EDT, 51 minutes before

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Hazardous weather outlook, Aug 17, 5:35 AM EDT, 9 hours 56 minutes before

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In the hours before

Special weather statement, Aug 17, 2:09 PM EDT, 1 hour 22 minutes before

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Special weather statement, Aug 17, 2:30 PM EDT, 1 hour 1 minute before

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Special weather statement, Aug 17, 3:16 PM EDT, 15 minutes before

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Special weather statement, Aug 17, 3:19 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
Aug 17, 2:09 PM EDT	Special Weather Statement	GSP	Buncombe	66 min
Aug 17, 3:16 PM EDT	Special Weather Statement	GSP	Mitchell	29 min
Aug 17, 3:19 PM EDT	Special Weather Statement	GSP	McDowell	26 min
Aug 17, 4:23 PM EDT	Areal Flood Advisory	GSP	Burke, McDowell	112 min
Aug 17, 4:30 PM EDT	Special Weather Statement	GSP	Transylvania	30 min
Aug 17, 5:26 PM EDT	Special Weather Statement	GSP	Rutherford	34 min
Aug 17, 5:48 PM EDT	Special Weather Statement	GSP	Polk	27 min
Aug 17, 2:30 PM EDT	Special Weather Statement	GSP	Franklin, Stephens	60 min
Aug 17, 5:44 PM EDT	Areal Flood Advisory	GSP	Habersham, Rabun	2 hr
Aug 17, 6:19 PM EDT	Special Weather Statement	GSP	Elbert	26 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2018 Every severe thunderstorm warning in 2018

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.