Alert archive / Georgia / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 243, NWS Greenville-Spartanburg, SC

June 29, 2010Oconee County, South Carolina; Habersham County, Stephens County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 29, 2010, 2:48 PM EDT for Oconee County, South Carolina; Habersham County, Stephens County, Georgia. It was in force for 57 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
Jun 29, 2010, 2:48 PM EDT (18:48 UTC)
Expired
Jun 29, 2010, 3:45 PM EDT
In force
57 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Habersham County, GA, Stephens County, GA, Oconee County, SC

The radar

The Greer radar (KGSP), 102 km from the middle of the area, began a volume at 18:49 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 180 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 2010-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 769 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 2010-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
769 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
879 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-18 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 Jun 29, 2:32 PM EDT, 16 minutes earlier.

Area forecast discussion, Jun 29, 2:32 PM EDT, 16 minutes before
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Hazardous weather outlook, Jun 29, 5:34 AM EDT, 9 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
534 AM EDT TUE JUN 29 2010

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-301000-
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-
534 AM EDT TUE JUN 29 2010

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

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE WESTERN CAROLINAS
AND NORTHEAST GEORGIA THIS AFTERNOON THROUGH THIS EVENING...
PRODUCING LOCALLY HEAVY RAINFALL AND FREQUENT LIGHTNING. SOME OF
THESE THUNDERSTORMS MAY ALSO PRODUCE DAMAGING WIND GUSTS. A FEW
COULD PRODUCE HAIL AS LARGE AS QUARTERS. THE GREATEST CHANCE OF
SEVERE THUNDERSTORMS WILL BE ACROSS UPSTATE SOUTH CAROLINA LATE
THIS AFTERNOON THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

07

In the hours before

Special weather statement, Jun 29, 1:57 PM EDT, 51 minutes before
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Local storm report, Jun 29, 2:26 PM EDT, 22 minutes before
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Special weather statement, Jun 29, 2:32 PM EDT, 16 minutes before
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Local storm report, Jun 29, 2:35 PM EDT, 13 minutes before
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Local storm report, Jun 29, 2:43 PM EDT, 5 minutes before
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Special weather statement, Jun 29, 2:45 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
Jun 28, 8:07 PM EDTSpecial Weather StatementGSPCatawba23 min
Jun 28, 8:28 PM EDTSpecial Weather StatementGSPMadison32 min
Jun 28, 8:57 PM EDTSpecial Weather StatementGSPYancey33 min
Jun 28, 9:48 PM EDTSpecial Weather StatementGSPBuncombe27 min
Jun 28, 9:55 PM EDTSpecial Weather StatementGSPSwain35 min
Jun 28, 10:04 PM EDTSpecial Weather StatementGSPYancey26 min
Jun 28, 10:29 PM EDTSpecial Weather StatementGSPMcDowell31 min
Jun 28, 11:05 PM EDTSpecial Weather StatementGSPHaywood40 min
Jun 29, 12:53 AM EDTSpecial Weather StatementGSPMacon37 min
Jun 29, 1:57 PM EDTSpecial Weather StatementGSPPolk33 min
Jun 29, 2:45 PM EDTSpecial Weather StatementGSPTransylvania30 min
Jun 29, 3:39 PM EDTSpecial Weather StatementGSPUnion36 min
Jun 29, 3:47 PM EDTSpecial Weather StatementGSPGaston28 min
Jun 29, 4:04 PM EDTSevere Thunderstorm WarningGSPUnion31 min
Jun 29, 4:08 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln37 min
Jun 29, 4:15 PM EDTSevere Thunderstorm WarningGSPUnion60 min
Jun 29, 4:39 PM EDTSpecial Weather StatementGSPCatawba36 min
Jun 29, 5:04 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan41 min
Jun 29, 5:17 PM EDTSpecial Weather StatementGSPIredell28 min
Jun 29, 5:20 PM EDTSevere Thunderstorm WarningGSPCatawba, Iredell, Rowan55 min
Jun 29, 6:40 PM EDTSpecial Weather StatementGSPRowan35 min
Jun 28, 10:09 PM EDTSpecial Weather StatementGSPPickens36 min
Jun 28, 10:30 PM EDTSpecial Weather StatementGSPOconee30 min
Jun 28, 10:48 PM EDTSevere Thunderstorm WarningGSPOconee, Pickens57 min
Jun 28, 11:46 PM EDTSpecial Weather StatementGSPGreenville44 min
Jun 29, 1:01 PM EDTSpecial Weather StatementGSPGreenville44 min
Jun 29, 1:42 PM EDTSevere Thunderstorm WarningGSPOconee63 min
Jun 29, 1:54 PM EDTSevere Thunderstorm WarningGSPCherokee, York66 min
Jun 29, 2:01 PM EDTSevere Thunderstorm WarningGSPSpartanburg59 min
Jun 29, 2:32 PM EDTSpecial Weather StatementGSPPickens28 min
Jun 29, 2:41 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg64 min
Jun 29, 3:11 PM EDTSpecial Weather StatementGSPGreenville34 min
Jun 29, 3:33 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens57 min
Jun 29, 3:36 PM EDTSpecial Weather StatementGSPChester24 min
Jun 29, 3:45 PM EDTSpecial Weather StatementGSPGreenville30 min
Jun 29, 3:49 PM EDTSpecial Weather StatementGSPAbbeville26 min
Jun 29, 4:18 PM EDTSpecial Weather StatementGSPSpartanburg27 min
Jun 29, 5:14 PM EDTSevere Thunderstorm WarningGSPAbbeville43 min
Jun 29, 12:37 PM EDTSpecial Weather StatementGSPHabersham, Stephens38 min
Jun 29, 1:39 PM EDTSpecial Weather StatementGSPHart51 min
Jun 29, 4:42 PM EDTSpecial Weather StatementGSPElbert33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2010Severe Thunderstorm Warnings in South Carolina, 2010Every 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.