Alert archive / North Carolina / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 57, NWS Greenville-Spartanburg, SC

May 22, 2013Jackson County, Swain County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 22, 2013, 2:54 PM EDT for Jackson County, Swain County, North Carolina. It was in force for 66 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 22, 2013, 2:54 PM EDT (18:54 UTC)
Expired: May 22, 2013, 4:00 PM EDT
In force: 66 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Jackson County, NC, Swain County, NC

The radar

The Knoxville radar (KMRX), 87 km from the middle of the area, began a volume at 18:55 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, 6.9 hours before the alert went out and 249 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: 735 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 784 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -27 m²/s²
0-3 km storm-relative helicity: -15 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 22, 2:45 PM EDT, 9 minutes earlier.

Area forecast discussion, May 22, 2:45 PM EDT, 9 minutes before

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Hazardous weather outlook, May 22, 5:12 AM EDT, 9 hours 42 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
512 AM EDT WED MAY 22 2013

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-230915-
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-
512 AM EDT WED MAY 22 2013

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 WILL DEVELOP ACROSS THE AREA
THIS AFTERNOON AND CONTINUE INTO THE EVENING. A FEW OF THE STORMS
MAY BECOME SEVERE...PRODUCING DAMAGING WINDS AND LARGE HAIL. IN
ADDITION...SOME OF THE STORMS COULD PRODUCE HEAVY RAINFALL...WHICH
COULD LEAD TO LOCALIZED FLOODING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A POTENTIAL FOR STRONG THUNDERSTORMS THURSDAY DURING THE
PEAK DAYTIME HEATING HOURS.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, May 22, 2:28 PM EDT, 26 minutes before

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Local storm report, May 22, 2:35 PM EDT, 19 minutes before

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Special weather statement, May 22, 2:36 PM EDT, 18 minutes before

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Local storm report, May 22, 2:47 PM EDT, 7 minutes before

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Special weather statement, May 22, 2:49 PM EDT, 5 minutes before

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Local storm report, May 22, 2:50 PM EDT, 4 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 21, 8:00 PM EDT	Special Weather Statement	GSP	Mitchell	45 min
May 21, 8:35 PM EDT	Special Weather Statement	GSP	Caldwell	40 min
May 21, 8:47 PM EDT	Special Weather Statement	GSP	Avery	43 min
May 21, 9:13 PM EDT	Special Weather Statement	GSP	Mitchell	47 min
May 21, 9:25 PM EDT	Severe Thunderstorm Warning	GSP	Mitchell	65 min
May 21, 9:55 PM EDT	Special Weather Statement	GSP	Avery	50 min
May 21, 10:43 PM EDT	Special Weather Statement	GSP	Burke	32 min
May 22, 11:46 AM EDT	Special Weather Statement	GSP	Avery, Buncombe, Haywood, Henderson, Mitchell, Transylvania and 1 more	44 min
May 22, 11:59 AM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Henderson	61 min
May 22, 12:33 PM EDT	Special Weather Statement	GSP	Mitchell	42 min
May 22, 12:42 PM EDT	Special Weather Statement	GSP	McDowell	48 min
May 22, 12:48 PM EDT	Special Weather Statement	GSP	Henderson	42 min
May 22, 1:17 PM EDT	Special Weather Statement	GSP	Avery	43 min
May 22, 1:25 PM EDT	Special Weather Statement	GSP	McDowell	50 min
May 22, 2:05 PM EDT	Special Weather Statement	GSP	McDowell	40 min
May 22, 2:11 PM EDT	Special Weather Statement	GSP	Avery	49 min
May 22, 2:15 PM EDT	Special Weather Statement	GSP	Graham	45 min
May 22, 2:19 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	56 min
May 22, 2:26 PM EDT	Special Weather Statement	GSP	Buncombe	49 min
May 22, 2:28 PM EDT	Special Weather Statement	GSP	Macon	47 min
May 22, 2:36 PM EDT	Special Weather Statement	GSP	Caldwell	39 min
May 22, 3:05 PM EDT	Areal Flood Advisory	GSP	Caldwell	115 min
May 22, 3:19 PM EDT	Special Weather Statement	GSP	Buncombe	41 min
May 22, 3:22 PM EDT	Special Weather Statement	GSP	Haywood	23 min
May 22, 3:33 PM EDT	Special Weather Statement	GSP	Jackson	27 min
May 22, 3:36 PM EDT	Special Weather Statement	GSP	Madison	24 min
May 22, 3:40 PM EDT	Special Weather Statement	GSP	Jackson	35 min
May 22, 3:45 PM EDT	Special Weather Statement	GSP	Burke	30 min
May 22, 3:46 PM EDT	Special Weather Statement	GSP	Yancey	29 min
May 22, 3:49 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, McDowell, Yancey	56 min
May 22, 3:54 PM EDT	Special Weather Statement	GSP	Transylvania	36 min
May 22, 4:10 PM EDT	Special Weather Statement	GSP	Polk	35 min
May 22, 4:14 PM EDT	Special Weather Statement	GSP	Buncombe	31 min
May 22, 4:22 PM EDT	Special Weather Statement	GSP	Burke	38 min
May 22, 4:25 PM EDT	Special Weather Statement	GSP	McDowell	50 min
May 22, 4:28 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	62 min
May 22, 4:40 PM EDT	Special Weather Statement	GSP	Henderson	35 min
May 22, 4:56 PM EDT	Special Weather Statement	GSP	Henderson	34 min
May 22, 4:59 PM EDT	Special Weather Statement	GSP	Polk	31 min
May 22, 5:19 PM EDT	Special Weather Statement	GSP	Henderson	26 min
May 22, 5:24 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Polk	66 min
May 22, 5:26 PM EDT	Special Weather Statement	GSP	McDowell	34 min
May 22, 5:29 PM EDT	Special Weather Statement	GSP	Macon	31 min
May 22, 5:31 PM EDT	Special Weather Statement	GSP	Graham	29 min
May 22, 5:47 PM EDT	Special Weather Statement	GSP	Polk	28 min
May 22, 6:05 PM EDT	Severe Thunderstorm Warning	GSP	Polk, Rutherford	55 min
May 22, 6:22 PM EDT	Special Weather Statement	GSP	Polk	23 min
May 22, 6:43 PM EDT	Special Weather Statement	GSP	Haywood	32 min
May 22, 7:08 PM EDT	Areal Flood Advisory	GSP	Burke, McDowell, Polk, Rutherford	112 min
May 22, 7:30 PM EDT	Special Weather Statement	GSP	Iredell	30 min
May 22, 3:30 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	45 min
May 22, 4:18 PM EDT	Special Weather Statement	GSP	Pickens	27 min
May 22, 4:30 PM EDT	Special Weather Statement	GSP	Anderson	30 min
May 22, 4:31 PM EDT	Special Weather Statement	GSP	Abbeville	29 min
May 22, 5:04 PM EDT	Special Weather Statement	GSP	Abbeville	26 min
May 22, 5:08 PM EDT	Special Weather Statement	GSP	Anderson	37 min
May 22, 5:38 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee	67 min
May 22, 5:42 PM EDT	Special Weather Statement	GSP	Pickens	33 min
May 22, 5:49 PM EDT	Special Weather Statement	GSP	Greenville	26 min
May 22, 5:51 PM EDT	Special Weather Statement	GSP	Anderson	24 min
May 22, 6:19 PM EDT	Special Weather Statement	GSP	Greenville	26 min
May 22, 6:41 PM EDT	Special Weather Statement	GSP	Spartanburg	34 min
May 22, 6:58 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	62 min
May 22, 7:10 PM EDT	Special Weather Statement	GSP	Greenville	35 min
May 21, 8:27 PM EDT	Areal Flood Advisory	GSP	Rabun	2 hr
May 22, 2:49 PM EDT	Special Weather Statement	GSP	Rabun	41 min
May 22, 4:12 PM EDT	Special Weather Statement	GSP	Elbert	33 min
May 22, 5:07 PM EDT	Special Weather Statement	GSP	Franklin	23 min
May 22, 5:34 PM EDT	Special Weather Statement	GSP	Hart	26 min
May 22, 7:14 PM EDT	Special Weather Statement	GSP	Hart	46 min
May 22, 7:41 PM EDT	Special Weather Statement	GSP	Rabun	34 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2013 Every severe thunderstorm warning in 2013

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.