Alert archive / North Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 259, NWS Greenville-Spartanburg, SC

July 7, 2008Henderson County, Polk County, North Carolina; Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 7, 2008, 8:00 PM EDT for Henderson County, Polk 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
Jul 7, 2008, 8:00 PM EDT (00:00 UTC)
Expired
Jul 7, 2008, 9:00 PM EDT
In force
60 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Henderson County, NC, Polk County, NC, Greenville County, SC

The radar

The Greer radar (KGSP), 34 km from the middle of the area, began a volume at 00:03 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 00:00Z, 0.0 hours before the alert went out and 282 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 00:00Z on 2008-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1383 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 00:00Z on 2008-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
1383 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1454 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
31 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 7, 7:49 PM EDT, 11 minutes earlier.

Area forecast discussion, Jul 7, 7:49 PM EDT, 11 minutes before
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Hazardous weather outlook, Jul 7, 5:51 AM EDT, 14 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
551 AM EDT MON JUL 7 2008

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-081000-
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-
551 AM EDT MON JUL 7 2008

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 TO DEVELOP AGAIN THIS AFTERNOON AND
EVENING ACROSS THE WESTERN CAROLINAS AND EXTREME NORTHEAST
GEORGIA. ALTHOUGH THE STORMS WILL NOT BE QUITE AS NUMEROUS AS THE
LAST FEW DAYS...THOSE STORMS THAT MANAGE TO DEVELOP WILL HAVE A
GREATER POTENTIAL TO PRODUCE SEVERE WEATHER...MAINLY IN THE FORM
OF DAMAGING WIND GUSTS AND PERHAPS LARGE HAIL. THE PIEDMONT OF THE
CAROLINAS HAS THE BEST CHANCE TO SEE SEVERE THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE
ONCE AGAIN ON TUESDAY WITH A FEW SEVERE THUNDERRSTORMS POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED TO HELP VERIFY WARNINGS AGAIN TODAY.

MOORE

In the hours before

Special weather statement, Jul 7, 5:32 PM EDT, 2 hours 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
532 PM EDT MON JUL 7 2008

GAZ018-026-028-SCZ001-004-072200-
FRANKLIN-GREATER OCONEE-HART-OCONEE MOUNTAINS-STEPHENS-
532 PM EDT MON JUL 7 2008

...A STRONG THUNDERSTORM WILL AFFECT EASTERN STEPHENS...NORTHEASTERN
FRANKLIN...NORTHWESTERN HART AND SOUTHERN OCONEE COUNTIES THROUGH 600
PM EDT...

AT 532 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES WEST OF LAKE HARTWELL...OR 8 MILES EAST
OF TOCCOA...MOVING SOUTHEAST AT 12 MPH.

THIS STORM WILL BE NEAR...
  MARTIN BY 540 PM EDT.
  LAKE HARTWELL BY 550 PM EDT.
  WHITWORTH BY 600 PM EDT.

PEOPLE IN EASTERN STEPHENS...NORTHEASTERN FRANKLIN...NORTHWESTERN
HART AND SOUTHERN OCONEE COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...

EASTANOLEE...MARTIN...LAKE HARTWELL AND WHITWORTH...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

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

BSH
Special weather statement, Jul 7, 5:35 PM EDT, 2 hours 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
535 PM EDT MON JUL 7 2008

NCZ065-509-510-072215-
EASTERN POLK-HENDERSON-POLK MOUNTAINS-
535 PM EDT MON JUL 7 2008

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN HENDERSON AND
SOUTHWESTERN POLK COUNTIES THROUGH 615 PM EDT...

AT 531 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTHWEST OF TRYON...OR 6 MILES WEST OF
COLUMBUS...MOVING SOUTHEAST AT 8 MPH.

THIS STORM WILL BE NEAR...
  TRYON BY 615 PM EDT.

WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK
HIGHER GROUND IF THREATENED BY FLOOD WATERS.

MCAVOY
Local storm report, Jul 7, 5:40 PM EDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
540 PM EDT MON JUL 07 2008

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

0520 PM     HAIL             5 SW MORGANTON          35.69N 81.76W
07/07/2008  E1.75 INCH       BURKE              NC   TRAINED SPOTTER

            HAIL COVERED THE GROUND

&&

LG
Local storm report, Jul 7, 5:42 PM EDT, 2 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
542 PM EDT MON JUL 07 2008

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

0445 PM     HAIL             MORGANTON               35.74N 81.70W
07/07/2008  E1.00 INCH       BURKE              NC   COUNTY OFFICIAL

            PENNY TO QUARTER SIZED HAIL NEAR OLD NC-18 AND HW-18 S.

&&

BSH
Special weather statement, Jul 7, 7:31 PM EDT, 29 minutes before
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Special weather statement, Jul 7, 7:57 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
Jul 7, 8:12 PM EDTAreal Flood AdvisoryGSPHenderson93 min
Jul 8, 12:46 PM EDTSevere Thunderstorm WarningGSPHenderson, Transylvania59 min
Jul 8, 12:56 PM EDTSevere Thunderstorm WarningGSPBuncombe, Haywood29 min
Jul 8, 1:43 PM EDTAreal Flood AdvisoryGSPHenderson92 min
Jul 8, 2:30 PM EDTSevere Thunderstorm WarningGSPMcDowell49 min
Jul 8, 3:10 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford49 min
Jul 8, 4:08 PM EDTSevere Thunderstorm WarningGSPCatawba, Gaston, Lincoln67 min
Jul 8, 4:35 PM EDTSevere Thunderstorm WarningGSPUnion55 min
Jul 8, 4:38 PM EDTSevere Thunderstorm WarningGSPCatawba, Gaston, Iredell, Lincoln, Mecklenburg67 min
Jul 8, 4:59 PM EDTSevere Thunderstorm WarningGSPMecklenburg61 min
Jul 8, 5:06 PM EDTSevere Thunderstorm WarningGSPCabarrus, Davie, Rowan54 min
Jul 8, 5:25 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg, Union80 min
Jul 8, 5:59 PM EDTAreal Flood AdvisoryGSPUnion2 hr
Jul 8, 5:59 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan25 min
Jul 8, 6:13 PM EDTFlash Flood WarningGSPUnion3 hr
Jul 8, 6:27 PM EDTAreal Flood AdvisoryGSPCabarrus2 hr
Jul 8, 3:02 PM EDTSevere Thunderstorm WarningGSPOconee58 min
Jul 8, 3:32 PM EDTSevere Thunderstorm WarningGSPAnderson58 min
Jul 8, 4:40 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens, Spartanburg51 min
Jul 8, 5:12 PM EDTSevere Thunderstorm WarningGSPSpartanburg35 min
Jul 8, 5:18 PM EDTSevere Thunderstorm WarningGSPYork45 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2008Severe 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.