Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 193, NWS Greenville-Spartanburg, SC

June 20, 2014Gaston County, Mecklenburg County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 20, 2014, 3:44 PM EDT for Gaston County, Mecklenburg County, North Carolina. It was in force for 61 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 20, 2014, 3:44 PM EDT (19:44 UTC)
Expired: Jun 20, 2014, 4:45 PM EDT
In force: 61 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Gaston County, NC, Mecklenburg County, NC

The radar

The Greer radar (KGSP), 119 km from the middle of the area, began a volume at 19:46 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, 7.7 hours before the alert went out and 135 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: 160 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 1171 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 36 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 20, 2:43 PM EDT, 1 hour 1 minute earlier.

Area forecast discussion, Jun 20, 2:43 PM EDT, 1 hour 1 minute before

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Hazardous weather outlook, Jun 20, 4:27 AM EDT, 11 hours 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
427 AM EDT FRI JUN 20 2014

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-210830-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-
IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-
ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-
MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-
GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
427 AM EDT FRI JUN 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS
THE WESTERN CAROLINAS AS AND NORTHEAST GEORGIA...MAINLY THIS
AFTERNOON. ALL OF THE STORMS WILL PRODUCE FREQUENT CLOUD TO
GROUND LIGHTNING AND HEAVY RAINFALL. A FEW STORMS MAY BECOME
SEVERE PRODUCING LARGE HAIL AND DAMAGING WIND GUSTS. THE STORMS
SHOULD WEAKEN AND DIMINISH THIS EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

JOH

In the hours before

Special weather statement, Jun 20, 2:54 PM EDT, 50 minutes before

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Special weather statement, Jun 20, 3:01 PM EDT, 43 minutes before

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Local storm report, Jun 20, 3:15 PM EDT, 29 minutes before

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Special weather statement, Jun 20, 3:26 PM EDT, 18 minutes before

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Special weather statement, Jun 20, 3:31 PM EDT, 13 minutes before

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Local storm report, Jun 20, 3:34 PM EDT, 10 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 19, 8:06 PM EDT	Special Weather Statement	GSP	Union	24 min
Jun 19, 8:22 PM EDT	Special Weather Statement	GSP	Union	38 min
Jun 19, 8:44 PM EDT	Special Weather Statement	GSP	Union	31 min
Jun 20, 11:06 AM EDT	Special Weather Statement	GSP	Mitchell, Yancey	39 min
Jun 20, 12:45 PM EDT	Special Weather Statement	GSP	McDowell	45 min
Jun 20, 1:25 PM EDT	Special Weather Statement	GSP	Rutherford	50 min
Jun 20, 1:27 PM EDT	Severe Thunderstorm Warning	GSP	McDowell, Polk, Rutherford	63 min
Jun 20, 1:35 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Transylvania	55 min
Jun 20, 1:37 PM EDT	Special Weather Statement	GSP	Caldwell	53 min
Jun 20, 1:41 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	64 min
Jun 20, 1:57 PM EDT	Special Weather Statement	GSP	Cleveland	48 min
Jun 20, 2:05 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Lincoln	55 min
Jun 20, 2:18 PM EDT	Special Weather Statement	GSP	Henderson	42 min
Jun 20, 2:20 PM EDT	Special Weather Statement	GSP	Caldwell	40 min
Jun 20, 2:54 PM EDT	Special Weather Statement	GSP	Alexander	51 min
Jun 20, 2:56 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston	64 min
Jun 20, 3:01 PM EDT	Special Weather Statement	GSP	Lincoln	44 min
Jun 20, 3:26 PM EDT	Special Weather Statement	GSP	Iredell	34 min
Jun 20, 3:31 PM EDT	Special Weather Statement	GSP	Gaston	29 min
Jun 20, 5:52 PM EDT	Special Weather Statement	GSP	Haywood	23 min
Jun 20, 6:05 PM EDT	Special Weather Statement	GSP	Henderson	25 min
Jun 20, 6:06 PM EDT	Special Weather Statement	GSP	Madison	24 min
Jun 20, 6:13 PM EDT	Special Weather Statement	GSP	Rutherford	32 min
Jun 20, 6:28 PM EDT	Special Weather Statement	GSP	Henderson	47 min
Jun 20, 6:35 PM EDT	Special Weather Statement	GSP	Burke	25 min
Jun 20, 6:47 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Transylvania	58 min
Jun 20, 6:55 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Caldwell	65 min
Jun 20, 7:12 PM EDT	Special Weather Statement	GSP	Buncombe	48 min
Jun 20, 7:16 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell	59 min
Jun 20, 7:18 PM EDT	Severe Thunderstorm Warning	GSP	Polk	57 min
Jun 20, 7:23 PM EDT	Special Weather Statement	GSP	Alexander	37 min
Jun 20, 7:33 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Catawba, Iredell	57 min
Jun 20, 7:40 PM EDT	Special Weather Statement	GSP	Henderson	50 min
Jun 20, 7:50 PM EDT	Severe Thunderstorm Warning	GSP	Macon	55 min
Jun 20, 4:05 PM EDT	Special Weather Statement	GSP	York	25 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2014 Every severe thunderstorm warning in 2014

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.