Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 56, NWS Greenville-Spartanburg, SC

May 15, 2010Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 15, 2010, 2:17 PM EDT for Transylvania County, North Carolina. It was in force for 58 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: May 15, 2010, 2:17 PM EDT (18:17 UTC)
Expired: May 15, 2010, 3:15 PM EDT
In force: 58 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

County Transylvania County, NC

The radar

The Greer radar (KGSP), 63 km from the middle of the area, began a volume at 18:20 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, 6.3 hours before the alert went out and 257 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: 1200 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 718 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 45 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 May 15, 1:55 PM EDT, 22 minutes earlier.

Area forecast discussion, May 15, 1:55 PM EDT, 22 minutes before

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Hazardous weather outlook, May 15, 4:17 AM EDT, 10 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
417 AM EDT SAT MAY 15 2010

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-160830-
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-
417 AM EDT SAT MAY 15 2010

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

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING AS A COLD
FRONT MOVES IN FROM THE NORTH. SOME STORMS MAY BECOME SEVERE WITH
DAMAGING WIND AND LARGE HAIL. IN ADDITION...SLOW MOVING STORMS
COULD PRODUCE AREAS OF EXCESSIVE RAINFALL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THUNDERSTORMS ARE EXPECTED AGAIN SUNDAY WITH THE FRONT STALLED
OVER THE AREA. SOME OF THESE STORMS COULD ALSO BECOME SEVERE WITH
DAMAGING WIND AND LARGE HAIL. AREAS OF EXCESSIVE RAINFALL WILL BE
POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Local storm report, May 15, 2:14 PM EDT, 3 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
May 14, 8:09 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Henderson, McDowell, Rutherford	66 min
May 14, 8:29 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Burke, Caldwell, Catawba, Davie, Iredell and 1 more	76 min
May 14, 8:42 PM EDT	Areal Flood Advisory	GSP	Buncombe, Burke, Caldwell, Henderson, McDowell, Rutherford	116 min
May 14, 9:53 PM EDT	Special Weather Statement	GSP	Catawba, Cleveland, Davie, Iredell, Lincoln, Polk and 1 more	67 min
May 14, 10:34 PM EDT	Special Weather Statement	GSP	Cabarrus, Cleveland, Davie, Gaston, Lincoln, Mecklenburg and 3 more	41 min
May 14, 11:01 PM EDT	Special Weather Statement	GSP	Cabarrus, Gaston, Mecklenburg, Rowan	44 min
May 15, 1:19 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Henderson, Transylvania	56 min
May 15, 1:50 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon	55 min
May 15, 3:06 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Madison	42 min
May 15, 3:13 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	32 min
May 15, 3:38 PM EDT	Severe Thunderstorm Warning	GSP	Macon	67 min
May 15, 5:00 PM EDT	Special Weather Statement	GSP	Avery	45 min
May 15, 5:43 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	62 min
May 15, 5:55 PM EDT	Special Weather Statement	GSP	Mecklenburg	50 min
May 15, 6:16 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg	37 min
May 15, 6:52 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg	23 min
May 15, 2:56 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens	64 min
May 15, 3:42 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg	63 min
May 15, 3:53 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	67 min
May 15, 4:50 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	55 min
May 15, 4:53 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	32 min
May 15, 4:56 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	64 min
May 15, 5:44 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	33 min
May 15, 3:33 PM EDT	Special Weather Statement	GSP	Rabun	42 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2010 Every severe thunderstorm warning in 2010

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.