Alert archive / North Carolina / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 285, NWS Greenville-Spartanburg, SC

August 1, 2013Henderson County, North Carolina; Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 1, 2013, 2:15 PM EDT for Henderson County, North Carolina; Greenville County, South Carolina. It was in force for 60 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 1, 2013, 2:15 PM EDT (18:15 UTC)
Expired
Aug 1, 2013, 3:15 PM EDT
In force
60 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Henderson County, NC, Greenville County, SC

The radar

The Greer radar (KGSP), 32 km from the middle of the area, began a volume at 18:17 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, 6.3 hours before the alert went out and 252 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2013-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 673 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2013-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
673 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
41 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 1, 2:09 PM EDT, 6 minutes earlier.

Area forecast discussion, Aug 1, 2:09 PM EDT, 6 minutes before
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Hazardous weather outlook, Aug 1, 5:57 AM EDT, 8 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
557 AM EDT THU AUG 1 2013

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-021000-
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-
557 AM EDT THU AUG 1 2013

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

.DAY ONE...TODAY AND TONIGHT.

A WEAK COLD FRONT WILL MOVE THROUGH THE REGION TODAY.
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND AHEAD OF THIS
FEATURE. THE POTENTIAL EXISTS FOR A FEW OF THESE THUNDERSTORMS TO
PRODUCE DAMAGING WINDS AND BRIEF PERIODS OF HEAVY RAINFALL...
ESPECIALLY OVER THE PIEDMONT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

WIMBERLEY

In the hours before

Local storm report, Aug 1, 9:42 AM EDT, 4 hours 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
942 AM EDT THU AUG 01 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0836 PM     FLASH FLOOD      BILTMORE FOREST         35.53N 82.54W
07/04/2013                   BUNCOMBE           NC   911 CALL CENTER

            SEVERAL STREETS FLOODED IN TOWN TO INCLUDE LYMAN
            RIVERSIDE DRIVE AMBOY ROAD..

&&

PTANNER
Local storm report, Aug 1, 9:46 AM EDT, 4 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
946 AM EDT THU AUG 01 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 PM     FLASH FLOOD      4 NE IRON STATION       35.49N 81.12W
07/09/2013                   LINCOLN            NC   911 CALL CENTER

            TRINITY FARMS NEIGHBORHOOD AMITY LANE BRIDGE WASHED OUT

&&

PTANNER
Special weather statement, Aug 1, 1:54 PM EDT, 21 minutes before
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Special weather statement, Aug 1, 1:55 PM EDT, 20 minutes before
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Local storm report, Aug 1, 1:57 PM EDT, 18 minutes before
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Special weather statement, Aug 1, 2:12 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.

IssuedProductOfficeCountiesLasted
Aug 1, 1:22 PM EDTSevere Thunderstorm WarningGSPMcDowell, Rutherford68 min
Aug 1, 1:47 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford58 min
Aug 1, 1:54 PM EDTSpecial Weather StatementGSPHenderson51 min
Aug 1, 1:55 PM EDTSpecial Weather StatementGSPGaston, Lincoln50 min
Aug 1, 2:00 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln, Mecklenburg60 min
Aug 1, 2:12 PM EDTSpecial Weather StatementGSPDavie48 min
Aug 1, 2:58 PM EDTSpecial Weather StatementGSPMecklenburg47 min
Aug 1, 3:12 PM EDTSpecial Weather StatementGSPCleveland48 min
Aug 1, 3:21 PM EDTSevere Thunderstorm WarningGSPMecklenburg54 min
Aug 1, 3:39 PM EDTSpecial Weather StatementGSPMcDowell36 min
Aug 1, 4:25 PM EDTSpecial Weather StatementGSPUnion50 min
Aug 1, 5:08 PM EDTSpecial Weather StatementGSPDavie52 min
Aug 1, 6:21 PM EDTSpecial Weather StatementGSPRowan24 min
Aug 1, 6:38 PM EDTSevere Thunderstorm WarningGSPIredell, Rowan52 min
Jul 31, 11:26 PM EDTAreal Flood AdvisoryGSPGreenville, Pickens2 hr
Aug 1, 2:41 PM EDTSevere Thunderstorm WarningGSPSpartanburg64 min
Aug 1, 3:00 PM EDTSpecial Weather StatementGSPOconee45 min
Aug 1, 3:03 PM EDTSpecial Weather StatementGSPCherokee42 min
Aug 1, 3:10 PM EDTSpecial Weather StatementGSPPickens50 min
Aug 1, 3:13 PM EDTSpecial Weather StatementGSPGreenville47 min
Aug 1, 3:17 PM EDTSevere Thunderstorm WarningGSPOconee58 min
Aug 1, 3:40 PM EDTSpecial Weather StatementGSPSpartanburg50 min
Aug 1, 3:47 PM EDTSpecial Weather StatementGSPYork43 min
Aug 1, 3:54 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville66 min
Aug 1, 4:05 PM EDTSpecial Weather StatementGSPLaurens40 min
Aug 1, 4:14 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens, Spartanburg, Union61 min
Aug 1, 4:49 PM EDTSpecial Weather StatementGSPUnion41 min
Aug 1, 5:03 PM EDTSpecial Weather StatementGSPChester42 min
Aug 1, 5:16 PM EDTSpecial Weather StatementGSPLaurens44 min
Aug 1, 4:19 PM EDTSpecial Weather StatementGSPHart41 min
Aug 1, 5:39 PM EDTSpecial Weather StatementGSPElbert51 min
Aug 1, 6:39 PM EDTSpecial Weather StatementGSPFranklin51 min
Aug 1, 7:24 PM EDTSpecial Weather StatementGSPElbert51 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2013Severe Thunderstorm Warnings in South Carolina, 2013Every 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.