Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 104, NWS Greenville-Spartanburg, SC

June 14, 2018Oconee County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 14, 2018, 6:07 PM EDT for Oconee County, South Carolina. It was in force for 38 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 14, 2018, 6:07 PM EDT (22:07 UTC)
Expired: Jun 14, 2018, 6:45 PM EDT
In force: 38 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Oconee County, SC

The radar

The Greer radar (KGSP), 79 km from the middle of the area, began a volume at 22:09 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.1 hours before the alert went out and 203 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: 418 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -87 m²/s²
0-3 km storm-relative helicity: -23 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 14, 4:25 PM EDT, 1 hour 42 minutes earlier.

Area forecast discussion, Jun 14, 4:25 PM EDT, 1 hour 42 minutes before

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Hazardous weather outlook, Jun 14, 5:15 PM EDT, 52 minutes before

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In the hours before

Special weather statement, Jun 14, 4:37 PM EDT, 1 hour 30 minutes before

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Local storm report, Jun 14, 4:55 PM EDT, 1 hour 12 minutes before

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Special weather statement, Jun 14, 4:55 PM EDT, 1 hour 12 minutes before

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Special weather statement, Jun 14, 5:27 PM EDT, 40 minutes before

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Special weather statement, Jun 14, 5:49 PM EDT, 18 minutes before

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Special weather statement, Jun 14, 6:02 PM EDT, 5 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 13, 8:03 PM EDT	Special Weather Statement	GSP	Cleveland	27 min
Jun 14, 2:46 PM EDT	Special Weather Statement	GSP	Transylvania	29 min
Jun 14, 3:21 PM EDT	Special Weather Statement	GSP	Transylvania	24 min
Jun 14, 3:41 PM EDT	Special Weather Statement	GSP	Transylvania	34 min
Jun 14, 3:47 PM EDT	Special Weather Statement	GSP	Rutherford	28 min
Jun 14, 4:08 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Transylvania	52 min
Jun 14, 4:37 PM EDT	Special Weather Statement	GSP	Pickens	23 min
Jun 14, 4:55 PM EDT	Special Weather Statement	GSP	Oconee	35 min
Jun 14, 5:27 PM EDT	Special Weather Statement	GSP	Oconee	33 min
Jun 14, 6:02 PM EDT	Special Weather Statement	GSP	Oconee	28 min
Jun 14, 6:38 PM EDT	Special Weather Statement	GSP	Laurens	37 min
Jun 14, 5:49 PM EDT	Special Weather Statement	GSP	Habersham	26 min
Jun 14, 6:19 PM EDT	Special Weather Statement	GSP	Habersham	26 min
Jun 14, 6:49 PM EDT	Special Weather Statement	GSP	Stephens	26 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.