Alert archive / North Carolina / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 173, NWS Greenville-Spartanburg, SC

June 25, 2018Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 25, 2018, 7:59 PM EDT for Union County, North Carolina. It was in force for 46 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 25, 2018, 7:59 PM EDT (23:59 UTC)
Expired: Jun 25, 2018, 8:45 PM EDT
In force: 46 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Union County, NC

The radar

The Columbia radar (KCAE), 128 km from the middle of the area, began a volume at 00:02 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 25, 1:02 PM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 12.0 hours before the alert went out and 134 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: 225 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1262 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 25, 6:41 PM EDT, 1 hour 18 minutes earlier.

Area forecast discussion, Jun 25, 6:41 PM EDT, 1 hour 18 minutes before

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Hazardous weather outlook, Jun 25, 7:45 PM EDT, 14 minutes before

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In the hours before

Local storm report, Jun 25, 7:20 PM EDT, 39 minutes before

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Local storm report, Jun 25, 7:26 PM EDT, 33 minutes before

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Local storm report, Jun 25, 7:31 PM EDT, 28 minutes before

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Local storm report, Jun 25, 7:43 PM EDT, 16 minutes before

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Local storm report, Jun 25, 7:52 PM EDT, 7 minutes before

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Local storm report, Jun 25, 7:57 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
Jun 24, 8:28 PM EDT	Special Weather Statement	GSP	McDowell, Mitchell, Yancey	32 min
Jun 25, 2:17 PM EDT	Special Weather Statement	GSP	Swain	28 min
Jun 25, 2:45 PM EDT	Special Weather Statement	GSP	Madison	30 min
Jun 25, 3:04 PM EDT	Severe Thunderstorm Warning	GSP	Graham, Swain	41 min
Jun 25, 3:08 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	52 min
Jun 25, 3:15 PM EDT	Special Weather Statement	GSP	Madison, Yancey	30 min
Jun 25, 3:45 PM EDT	Severe Thunderstorm Warning	GSP	Graham, Jackson, Macon, Swain	60 min
Jun 25, 3:49 PM EDT	Special Weather Statement	GSP	Avery, McDowell, Mitchell, Yancey	26 min
Jun 25, 4:00 PM EDT	Severe Thunderstorm Warning	GSP	Avery, Buncombe, Burke, Caldwell, McDowell, Mitchell and 1 more	45 min
Jun 25, 4:19 PM EDT	Severe Thunderstorm Warning	GSP	Haywood, Jackson, Macon, Swain	41 min
Jun 25, 4:38 PM EDT	Severe Thunderstorm Warning	GSP	Avery, Buncombe, Burke, Caldwell, Cleveland, McDowell and 1 more	52 min
Jun 25, 4:53 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Henderson, Jackson, Macon, Transylvania	52 min
Jun 25, 5:04 PM EDT	Special Weather Statement	GSP	Henderson, Polk, Rutherford	26 min
Jun 25, 5:09 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Polk, Rutherford, Transylvania	66 min
Jun 25, 5:22 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Burke, Caldwell, Catawba, Cleveland, Iredell and 3 more	38 min
Jun 25, 5:45 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Polk, Rutherford	45 min
Jun 25, 5:57 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Cabarrus, Catawba, Cleveland, Davie, Iredell and 3 more	48 min
Jun 25, 6:22 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Rutherford	38 min
Jun 25, 6:43 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Davie, Iredell, Mecklenburg, Rowan	47 min
Jun 25, 7:21 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg, Union	39 min
Jun 25, 2:05 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	40 min
Jun 25, 2:36 PM EDT	Special Weather Statement	GSP	Union	24 min
Jun 25, 2:44 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	27 min
Jun 25, 2:47 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Union, York	43 min
Jun 25, 3:28 PM EDT	Special Weather Statement	GSP	York	62 min
Jun 25, 3:45 PM EDT	Special Weather Statement	GSP	Chester	30 min
Jun 25, 3:50 PM EDT	Severe Thunderstorm Warning	GSP	Chester	25 min
Jun 25, 4:16 PM EDT	Severe Thunderstorm Warning	GSP	Chester	12 min
Jun 25, 4:34 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	41 min
Jun 25, 5:13 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Oconee, Pickens	47 min
Jun 25, 5:59 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenville, Laurens, Oconee, Pickens and 1 more	46 min
Jun 25, 6:30 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenville, Greenwood, Laurens, Spartanburg and 1 more	45 min
Jun 25, 6:58 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Cherokee, Chester, Greenwood, Laurens, Spartanburg and 2 more	62 min
Jun 24, 8:07 PM EDT	Special Weather Statement	GSP	Hart	23 min
Jun 24, 8:25 PM EDT	Special Weather Statement	GSP	Hart	35 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.