Alert archive / South Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 279, NWS Greenville-Spartanburg, SC

July 9, 2008Oconee County, Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 9, 2008, 2:46 PM EDT for Oconee County, Pickens County, South Carolina. It was in force for 59 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
Jul 9, 2008, 2:46 PM EDT (18:46 UTC)
Expired
Jul 9, 2008, 3:45 PM EDT
In force
59 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Oconee County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 62 km from the middle of the area, began a volume at 18:48 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, 6.8 hours before the alert went out and 219 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, Peachtre/Fal Fld, GA at 12:00Z on 2008-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 978 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, Peachtre/Fal Fld, GA at 12:00Z on 2008-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 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
978 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
-8 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 Jul 9, 1:15 PM EDT, 1 hour 31 minutes earlier.

Area forecast discussion, Jul 9, 1:15 PM EDT, 1 hour 31 minutes before
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Hazardous weather outlook, Jul 9, 1:50 PM EDT, 56 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
150 PM EDT WED JUL 9 2008

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-101800-
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-
150 PM EDT WED JUL 9 2008

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED TO NUMEROUS THUNDERSTORMS WILL CONTINUE TO DEVELOP
ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA THIS AFTERNOON
AND EVENING. SOME OF THE THUNDERSTORMS WILL DEVELOP TO THE EXTENT
THAT THEY WILL PRODUCE HAIL TO SIZE OF PENNIES AND DAMAGING WIND
GUSTS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SCATTERED TO NUMEROUS THUNDERSTORMS...A FEW OF THEM SEVERE...WILL
DEVELOP AGAIN THURSDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Special weather statement, Jul 9, 1:31 PM EDT, 1 hour 15 minutes before
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Special weather statement, Jul 9, 1:33 PM EDT, 1 hour 13 minutes before
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Special weather statement, Jul 9, 1:55 PM EDT, 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
155 PM EDT WED JUL 9 2008

NCZ035-036-056-501-502-504-091900-
ALEXANDER-CALDWELL MOUNTAINS-CATAWBA-GREATER BURKE-GREATER
CALDWELL-IREDELL-
155 PM EDT WED JUL 9 2008

...STRONG THUNDERSTORMS WILL AFFECT ALEXANDER...CALDWELL...NORTHERN
BURKE...NORTHWESTERN CATAWBA AND WESTERN IREDELL COUNTIES THROUGH 300
PM EDT...

AT 148 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES WEST OF
KINGS CREEK TO 6 MILES NORTHWEST OF MORGANTON...MOVING EAST AT 16
MPH.

THESE STORMS WILL BE NEAR...
  KINGS CREEK BY 200 PM EDT.
  MORGANTON BY 205 PM EDT.
  HUDSON BY 220 PM EDT.
  LAKE RHODHISS BY 230 PM EDT.
  VALDESE BY 235 PM EDT.
  RUTHERFORD COLLEGE BY 240 PM EDT.

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

KRENTZ
Special weather statement, Jul 9, 2:23 PM EDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
223 PM EDT WED JUL 9 2008

NCZ053-065-507>510-091930-
BUNCOMBE-EASTERN POLK-GREATER RUTHERFORD-HENDERSON-POLK
MOUNTAINS-RUTHERFORD MOUNTAINS-
223 PM EDT WED JUL 9 2008

...STRONG THUNDERSTORMS WILL AFFECT CENTRAL RUTHERFORD...NORTHERN
HENDERSON...NORTHWESTERN POLK AND SOUTHERN BUNCOMBE COUNTIES THROUGH
330 PM EDT...

AT 218 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES NORTH OF BAT
CAVE TO 5 MILES WEST OF AVERY CREEK...MOVING SOUTHEAST AT 15 MPH.

THESE STORMS WILL BE NEAR...
  FLETCHER BY 240 PM EDT.
  BAT CAVE BY 250 PM EDT.
  CHIMNEY ROCK BY 300 PM EDT.
  LAKE ADGER BY 330 PM EDT.

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

KRENTZ
Special weather statement, Jul 9, 2:30 PM EDT, 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
230 PM EDT WED JUL 9 2008

NCZ501-502-091930-
CALDWELL MOUNTAINS-GREATER CALDWELL-
230 PM EDT WED JUL 9 2008

...STRONG THUNDERSTORMS WILL PRODUCE TORRENTIAL RAINFALL ACROSS
CALDWELL COUNTY THROUGH THE LATE AFTERNOON HOURS...

AT 230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF THUNDERSTORMS MOVING EAST AT 20 MPH ACROSS CENTRAL AND
EASTERN CALDWELL COUNTY. TORRENTIAL RAINFALL AT RATES OF 1 TO 2
INCHES PER HOUR WILL BE POSSIBLE IN THE VICINITY OF PATTERSON
THROUGH 4 PM. THIS WILL CREATE RAPID RISES ALONG STREAMS AND
CREEKS...INCLUDING BUFFALO CREEK AND THE YADKIN RIVER.

HG
Special weather statement, Jul 9, 2:36 PM EDT, 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
236 PM EDT WED JUL 9 2008

SCZ001-002-005-091930-
GREATER PICKENS-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
236 PM EDT WED JUL 9 2008

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL PICKENS AND NORTHEASTERN
OCONEE COUNTIES THROUGH 330 PM EDT...

AT 230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES WEST OF NINE TIMES...OR 11 MILES WEST OF
PICKENS...MOVING EAST AT 11 MPH.

THIS STORM WILL BE NEAR...
  NINE TIMES BY 245 PM EDT.
  PICKENS BY 325 PM EDT.
  6 MILES NORTH OF LIBERTY BY 330 PM EDT.

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

KRENTZ

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 3:21 PM EDTSevere Thunderstorm WarningGSPBurke, Cleveland, McDowell, Rutherford54 min
Jul 9, 3:24 PM EDTSevere Thunderstorm WarningGSPHenderson, Polk66 min
Jul 9, 3:35 PM EDTSevere Thunderstorm WarningGSPCatawba, Lincoln55 min
Jul 9, 3:39 PM EDTSevere Thunderstorm WarningGSPGraham, Swain50 min
Jul 9, 4:11 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Rutherford64 min
Jul 9, 7:22 PM EDTAreal Flood AdvisoryGSPUnion113 min
Jul 8, 10:51 PM EDTSevere Thunderstorm WarningGSPAnderson, Oconee54 min
Jul 9, 3:52 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Pickens53 min
Jul 9, 4:36 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg, Union28 min
Jul 9, 5:16 PM EDTSevere Thunderstorm WarningGSPChester45 min
Jul 9, 5:38 PM EDTSevere Thunderstorm WarningGSPCherokee, Chester, Union, York53 min
Jul 9, 6:23 PM EDTSevere Thunderstorm WarningGSPAnderson, Oconee, Pickens67 min
Jul 9, 6:59 PM EDTSevere Thunderstorm WarningGSPPickens35 min
Jul 9, 7:05 PM EDTSevere Thunderstorm WarningGSPAnderson55 min
Jul 9, 7:53 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens, Spartanburg40 min
Jul 8, 9:26 PM EDTSevere Thunderstorm WarningGSPFranklin, Stephens64 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2008Every severe thunderstorm warning in 2008

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.