Alert archive / Georgia / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 309, NWS Greenville-Spartanburg, SC

October 9, 2014Oconee County, South Carolina; Habersham County, Rabun County, Stephens County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Oct 9, 2014, 2:48 PM EDT for Oconee County, South Carolina; Habersham County, Rabun County, Stephens County, Georgia. It was in force for 44 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: Oct 9, 2014, 2:48 PM EDT (18:48 UTC)
Expired: Oct 9, 2014, 3:32 PM EDT
In force: 44 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

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

The radar

The Greer radar (KGSP), 103 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 184 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: 1417 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 879 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Oct 9, 1:48 PM EDT, 1 hour earlier.

Area forecast discussion, Oct 9, 1:48 PM EDT, 1 hour before

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Hazardous weather outlook, Oct 9, 10:39 AM EDT, 4 hours 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1039 AM EDT THU OCT 9 2014

GAZ010-017-018-026-028-029-NCZ051-052-058-059-062>064-SCZ001-004-
101445-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-SWAIN-HAYWOOD-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
OCONEE MOUNTAINS-GREATER OCONEE-
1039 AM EDT THU OCT 9 2014

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

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE FOR A FEW THUNDERSTORMS TO DEVELOP ACROSS THE
SOUTHWEST NORTH CAROLINA MOUNTAINS AND UPPER SAVANNAH RIVER VALLEY
THIS AFTERNOON. ANY STORMS THAT DO DEVELOP WILL HAVE THE POTENTIAL
TO PRODUCE CLOUD-TO-GROUND LIGHTNING...GUSTY WINDS...AND POSSIBLY
SMALL HAIL.

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

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ033-035>037-048>050-053-056-057-065-068>072-082-501>510-SCZ002-
003-005>014-019-101445-
AVERY-ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-BUNCOMBE-
CATAWBA-ROWAN-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-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
1039 AM EDT THU OCT 9 2014

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

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

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

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

ARK

In the hours before

Special weather statement, Oct 9, 2:09 PM EDT, 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
209 PM EDT THU OCT 9 2014

GAZ010-017-091900-
HABERSHAM-RABUN-
209 PM EDT THU OCT 9 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN HABERSHAM AND SOUTH
CENTRAL RABUN COUNTIES THROUGH 300 PM EDT...

AT 208 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR HELEN...OR 7 MILES NORTH OF CLEVELAND...
MOVING EAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  BATESVILLE...
  CLARKESVILLE...

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3478 8338 3456 8346 3460 8365 3463 8365
      3466 8367 3468 8365 3471 8365 3473 8363
      3476 8363 3479 8368 3480 8367

LG

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 9, 4:42 PM EDT	Special Weather Statement	GSP	Jackson	33 min
Oct 9, 5:07 PM EDT	Special Weather Statement	GSP	Macon	23 min
Oct 9, 4:26 PM EDT	Special Weather Statement	GSP	Oconee	34 min
Oct 9, 7:03 PM EDT	Special Weather Statement	GSP	Oconee	27 min
Oct 9, 7:33 PM EDT	Special Weather Statement	GSP	Oconee	27 min
Oct 9, 2:09 PM EDT	Special Weather Statement	GSP	Habersham	51 min
Oct 9, 3:51 PM EDT	Special Weather Statement	GSP	Franklin	24 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2014 Severe Thunderstorm Warnings in South Carolina, 2014 Every severe thunderstorm warning in 2014

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.