Alert archive / South Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 208, NWS Greenville-Spartanburg, SC

August 18, 2019Oconee County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 18, 2019, 3:02 PM EDT for Oconee County, South Carolina. It was in force for 28 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 18, 2019, 3:02 PM EDT (19:02 UTC)
Expired: Aug 18, 2019, 3:30 PM EDT
In force: 28 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 0.75 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 19:02 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.0 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: 280 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 1230 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: -1 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 18, 2:44 PM EDT, 18 minutes earlier.

Area forecast discussion, Aug 18, 2:44 PM EDT, 18 minutes before

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Hazardous weather outlook, Aug 18, 4:38 AM EDT, 10 hours 24 minutes before

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In the hours before

Special weather statement, Aug 18, 2:22 PM EDT, 40 minutes before

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Special weather statement, Aug 18, 2:27 PM EDT, 35 minutes before

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Special weather statement, Aug 18, 2:45 PM EDT, 17 minutes before

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Special weather statement, Aug 18, 2:55 PM EDT, 7 minutes before

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Special weather statement, Aug 18, 2:58 PM EDT, 4 minutes before

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Special weather statement, Aug 18, 3:00 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
Aug 18, 1:00 PM EDT	Special Weather Statement	GSP	Transylvania	30 min
Aug 18, 2:22 PM EDT	Special Weather Statement	GSP	Henderson	38 min
Aug 18, 2:45 PM EDT	Special Weather Statement	GSP	Transylvania	45 min
Aug 18, 2:55 PM EDT	Special Weather Statement	GSP	Catawba	35 min
Aug 18, 2:58 PM EDT	Special Weather Statement	GSP	Henderson	32 min
Aug 18, 3:05 PM EDT	Special Weather Statement	GSP	Alexander	25 min
Aug 18, 3:20 PM EDT	Special Weather Statement	GSP	Catawba	25 min
Aug 18, 3:44 PM EDT	Special Weather Statement	GSP	McDowell	31 min
Aug 18, 3:46 PM EDT	Special Weather Statement	GSP	Alexander	29 min
Aug 18, 3:49 PM EDT	Special Weather Statement	GSP	Cleveland	26 min
Aug 18, 3:58 PM EDT	Special Weather Statement	GSP	Union	32 min
Aug 18, 4:16 PM EDT	Special Weather Statement	GSP	McDowell	29 min
Aug 18, 4:18 PM EDT	Special Weather Statement	GSP	Iredell	27 min
Aug 18, 4:33 PM EDT	Special Weather Statement	GSP	Union	27 min
Aug 18, 4:44 PM EDT	Special Weather Statement	GSP	Polk	31 min
Aug 18, 4:45 PM EDT	Special Weather Statement	GSP	Iredell	30 min
Aug 18, 5:21 PM EDT	Special Weather Statement	GSP	Cleveland	24 min
Aug 18, 5:43 PM EDT	Special Weather Statement	GSP	Cleveland	32 min
Aug 18, 6:14 PM EDT	Special Weather Statement	GSP	Gaston	46 min
Aug 17, 8:01 PM EDT	Special Weather Statement	GSP	Union	29 min
Aug 17, 9:17 PM EDT	Special Weather Statement	GSP	Greenwood	43 min
Aug 17, 9:53 PM EDT	Special Weather Statement	GSP	Abbeville	37 min
Aug 17, 10:01 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville	29 min
Aug 18, 2:27 PM EDT	Special Weather Statement	GSP	Oconee	48 min
Aug 18, 3:00 PM EDT	Special Weather Statement	GSP	Union	30 min
Aug 18, 3:07 PM EDT	Special Weather Statement	GSP	Chester	23 min
Aug 18, 3:09 PM EDT	Special Weather Statement	GSP	Laurens	36 min
Aug 18, 3:28 PM EDT	Special Weather Statement	GSP	Oconee	32 min
Aug 18, 3:38 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	37 min
Aug 18, 3:41 PM EDT	Special Weather Statement	GSP	Pickens	34 min
Aug 18, 3:52 PM EDT	Special Weather Statement	GSP	Chester	38 min
Aug 18, 4:02 PM EDT	Special Weather Statement	GSP	Oconee	28 min
Aug 18, 4:15 PM EDT	Special Weather Statement	GSP	Greenville	30 min
Aug 18, 4:31 PM EDT	Special Weather Statement	GSP	Spartanburg	29 min
Aug 18, 4:42 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg	48 min
Aug 18, 5:15 PM EDT	Special Weather Statement	GSP	York	30 min
Aug 18, 5:17 PM EDT	Special Weather Statement	GSP	Anderson	28 min
Aug 18, 5:27 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, York	48 min
Aug 18, 5:55 PM EDT	Special Weather Statement	GSP	Union	35 min
Aug 18, 6:31 PM EDT	Special Weather Statement	GSP	Spartanburg	29 min
Aug 18, 7:01 PM EDT	Special Weather Statement	GSP	Cherokee	44 min
Aug 18, 7:04 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	41 min
Aug 18, 7:32 PM EDT	Special Weather Statement	GSP	Cherokee	28 min
Aug 18, 7:37 PM EDT	Special Weather Statement	GSP	Laurens	23 min
Aug 18, 7:58 PM EDT	Special Weather Statement	GSP	Laurens	32 min
Aug 18, 4:36 PM EDT	Special Weather Statement	GSP	Stephens	24 min
Aug 18, 4:55 PM EDT	Special Weather Statement	GSP	Elbert	35 min
Aug 18, 4:57 PM EDT	Special Weather Statement	GSP	Stephens	33 min
Aug 18, 5:37 PM EDT	Special Weather Statement	GSP	Elbert	23 min
Aug 18, 6:33 PM EDT	Special Weather Statement	GSP	Hart	27 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2019 Every severe thunderstorm warning in 2019

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.