Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 148, NWS Greenville-Spartanburg, SC

June 24, 2018Chester County, Union County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 24, 2018, 6:52 PM EDT for Chester County, Union County, South Carolina. It was in force for 53 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 24, 2018, 6:52 PM EDT (22:52 UTC)
Expired: Jun 24, 2018, 7:45 PM EDT
In force: 53 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Chester County, SC, Union County, SC

The radar

The Greer radar (KGSP), 79 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 205 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: 11 J/kg
Mixed-layer CIN: -135 J/kg
Mixed-layer LCL: 1456 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 66 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 24, 5:16 PM EDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jun 24, 5:16 PM EDT, 1 hour 36 minutes before

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Hazardous weather outlook, Jun 24, 6:18 PM EDT, 34 minutes before

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In the hours before

Special weather statement, Jun 24, 6:09 PM EDT, 43 minutes before

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Special weather statement, Jun 24, 6:13 PM EDT, 39 minutes before

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Special weather statement, Jun 24, 6:19 PM EDT, 33 minutes before

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Special weather statement, Jun 24, 6:29 PM EDT, 23 minutes before

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Special weather statement, Jun 24, 6:40 PM EDT, 12 minutes before

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Special weather statement, Jun 24, 6:44 PM EDT, 8 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, 6:05 AM EDT	Special Weather Statement	GSP	Avery, Mitchell	55 min
Jun 24, 1:53 PM EDT	Special Weather Statement	GSP	Graham	37 min
Jun 24, 2:48 PM EDT	Special Weather Statement	GSP	Graham, Swain	27 min
Jun 24, 3:08 PM EDT	Special Weather Statement	GSP	Graham, Macon, Swain	37 min
Jun 24, 3:33 PM EDT	Severe Thunderstorm Warning	GSP	Graham, Macon, Swain	42 min
Jun 24, 3:37 PM EDT	Special Weather Statement	GSP	Madison	23 min
Jun 24, 3:58 PM EDT	Special Weather Statement	GSP	Madison	32 min
Jun 24, 4:00 PM EDT	Special Weather Statement	GSP	Jackson	30 min
Jun 24, 4:11 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon, Transylvania	49 min
Jun 24, 4:22 PM EDT	Severe Thunderstorm Warning	GSP	Polk, Rutherford	38 min
Jun 24, 4:35 PM EDT	Special Weather Statement	GSP	Mecklenburg	55 min
Jun 24, 4:36 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	39 min
Jun 24, 4:43 PM EDT	Special Weather Statement	GSP	Rowan	32 min
Jun 24, 5:07 PM EDT	Severe Thunderstorm Warning	GSP	Madison	38 min
Jun 24, 5:15 PM EDT	Special Weather Statement	GSP	Union	60 min
Jun 24, 5:29 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	46 min
Jun 24, 7:03 PM EDT	Special Weather Statement	GSP	Macon	42 min
Jun 24, 7:26 PM EDT	Special Weather Statement	GSP	Madison, Yancey	34 min
Jun 24, 7:54 PM EDT	Special Weather Statement	GSP	Mitchell, Yancey	36 min
Jun 24, 2:38 PM EDT	Special Weather Statement	GSP	Spartanburg	37 min
Jun 24, 2:50 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg	40 min
Jun 24, 3:44 PM EDT	Special Weather Statement	GSP	Spartanburg	31 min
Jun 24, 4:29 PM EDT	Special Weather Statement	GSP	Chester	31 min
Jun 24, 4:39 PM EDT	Severe Thunderstorm Warning	GSP	Chester, Union, York	51 min
Jun 24, 4:55 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Pickens	50 min
Jun 24, 5:09 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg	51 min
Jun 24, 5:24 PM EDT	Special Weather Statement	GSP	Spartanburg	36 min
Jun 24, 5:46 PM EDT	Special Weather Statement	GSP	Laurens	29 min
Jun 24, 5:47 PM EDT	Special Weather Statement	GSP	Chester	28 min
Jun 24, 5:48 PM EDT	Special Weather Statement	GSP	Abbeville	27 min
Jun 24, 5:53 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg, Union	52 min
Jun 24, 6:00 PM EDT	Special Weather Statement	GSP	Union	30 min
Jun 24, 6:09 PM EDT	Special Weather Statement	GSP	Greenwood, Laurens	36 min
Jun 24, 6:13 PM EDT	Special Weather Statement	GSP	Chester	32 min
Jun 24, 6:29 PM EDT	Special Weather Statement	GSP	Union	31 min
Jun 24, 6:44 PM EDT	Special Weather Statement	GSP	Chester	31 min
Jun 24, 4:33 PM EDT	Special Weather Statement	GSP	Habersham	27 min
Jun 24, 4:48 PM EDT	Special Weather Statement	GSP	Hart	42 min
Jun 24, 5:12 PM EDT	Severe Thunderstorm Warning	GSP	Franklin, Hart, Stephens	48 min
Jun 24, 6:19 PM EDT	Special Weather Statement	GSP	Elbert	26 min
Jun 24, 6:40 PM EDT	Special Weather Statement	GSP	Elbert	35 min
Jun 24, 7:41 PM EDT	Special Weather Statement	GSP	Franklin, Habersham, Stephens	34 min

Nearby

Severe Thunderstorm Warnings in South 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.