Alert archive / South Carolina / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 179, NWS Greenville-Spartanburg, SC

July 18, 2015Oconee County, South Carolina; Rabun County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 18, 2015, 2:56 PM EDT for Oconee County, South Carolina; Rabun County, Georgia. It was in force for 16 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 18, 2015, 2:56 PM EDT (18:56 UTC)
Expired: Jul 18, 2015, 3:12 PM EDT
In force: 16 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Rabun County, GA, Oconee County, SC

The radar

The Greer radar (KGSP), 93 km from the middle of the area, began a volume at 18:56 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, 6.9 hours before the alert went out and 199 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: 705 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 1130 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 45 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 18, 2:50 PM EDT, 6 minutes earlier.

Area forecast discussion, Jul 18, 2:50 PM EDT, 6 minutes before

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Hazardous weather outlook, Jul 18, 6:59 AM EDT, 7 hours 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
659 AM EDT SAT JUL 18 2015

GAZ010-017-NCZ033-035>037-048>053-056>059-062>065-069-501>507-509-
SCZ001>003-191100-
RABUN-HABERSHAM-AVERY-ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-
MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-ROWAN-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
LINCOLN-CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-
GREATER BURKE-MCDOWELL MOUNTAINS-EASTERN MCDOWELL-
RUTHERFORD MOUNTAINS-POLK MOUNTAINS-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
659 AM EDT SAT JUL 18 2015

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO WIDELY SCATTERED THUNDERSTORMS ARE EXPECTED TODAY
ACROSS THE MOUNTAINS AND THE I-40 CORRIDOR IN THE PIEDMONT AND
FOOTHILLS...MAINLY THIS AFTERNOON. WHILE THE PRIMARY THREATS WILL
BE FROM CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY RAINFALL...AN
ISOLATED SEVERE STORM OR TWO WILL BE POSSIBLE...WITH LOCALLY
DAMAGING WINDS BEING THE PRIMARY THREAT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

..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.
..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

GAZ018-026-028-029-NCZ068-070>072-082-508-510-SCZ004>014-019-191100-
STEPHENS-FRANKLIN-HART-ELBERT-CLEVELAND-GASTON-MECKLENBURG-CABARRUS-
UNION-GREATER RUTHERFORD-EASTERN POLK-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-CHESTER-GREENWOOD-
659 AM EDT SAT JUL 18 2015

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO WIDELY SCATTERED THUNDERSTORMS ARE EXPECTED THIS
AFTERNOON ACROSS THE PIEDMONT OF SOUTH CAROLINA...NORTHEAST
GEORGIA...AND SOUTHERN NORTH CAROLINA. WHILE THE PRIMARY THREATS
WILL BE FROM CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY
RAINFALL...AN ISOLATED SEVERE STORM OR TWO WILL BE POSSIBLE...WITH
LOCALLY DAMAGING WINDS BEING THE PRIMARY THREAT.

IN ADDITION...HIGH TEMPERATURES IN THE MID TO UPPER 90S WILL
COMBINE WITH MODERATE LEVELS OF HUMIDITY TO PRODUCE HEAT INDEX
VALUES OF 100 TO 105. TRY TO LIMIT OUTDOOR ACTIVITIES TO THE EARLY
MORNING OR EVENING HOURS. STAY OUT OF THE SUN AS MUCH AS
POSSIBLE...PREFERABLY IN AN AIR-CONDITIONED AREA DURING THE
HOTTEST PART OF THE DAY. IF YOU DO GO OUTSIDE...DRINK PLENTY OF
FLUIDS...AND WEAR LIGHT COLORED AND LOOSE FITTING CLOTHING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

..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.
..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

LANE

In the hours before

Special weather statement, Jul 18, 2:13 PM EDT, 43 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
213 PM EDT SAT JUL 18 2015

NCZ065-181845-
HENDERSON NC-
213 PM EDT SAT JUL 18 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF HENDERSON COUNTY UNTIL
245 PM EDT...

AT 213 PM EDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORM NEAR
HENDERSONVILLE...MOVING SOUTHEAST AT 10 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
HENDERSONVILLE...MILLS RIVER...FLETCHER...FLAT ROCK...ETOWAH...
MOUNTAIN HOME...LAUREL PARK...SALUDA...ASHEVILLE AIRPORT AND VALLEY
HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

&&

LAT...LON 3534 8230 3531 8231 3531 8233 3529 8235
      3524 8235 3524 8236 3519 8236 3519 8238
      3521 8239 3519 8242 3517 8244 3516 8246
      3518 8246 3516 8250 3527 8261 3530 8262
      3536 8267 3544 8251
TIME...MOT...LOC 1813Z 309DEG 11KT 3532 8252

RWH

Special weather statement, Jul 18, 2:24 PM EDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
224 PM EDT SAT JUL 18 2015

NCZ510-SCZ003-007-181900-
EASTERN POLK NC-SPARTANBURG SC-GREENVILLE MOUNTAINS SC-
224 PM EDT SAT JUL 18 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHERN POLK...
NORTHWESTERN SPARTANBURG AND NORTHEASTERN GREENVILLE COUNTIES UNTIL
300 PM EDT...

AT 223 PM EDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORM OVER
COLUMBUS...MOVING SOUTHEAST AT 15 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
COLUMBUS...LANDRUM...INMAN...TRYON...CAMPOBELLO...LAKE BOWEN...GREEN
CREEK...MILL SPRING...GOWENSVILLE AND FINGERVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

&&

LAT...LON 3523 8196 3522 8197 3519 8197 3519 8189
      3518 8187 3497 8209 3519 8232 3520 8229
      3520 8226 3526 8228 3534 8220
TIME...MOT...LOC 1823Z 309DEG 11KT 3523 8221

RWH

Special weather statement, Jul 18, 2:36 PM EDT, 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
236 PM EDT SAT JUL 18 2015

NCZ052-181900-
HAYWOOD NC-
236 PM EDT SAT JUL 18 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF EAST CENTRAL HAYWOOD
COUNTY UNTIL 300 PM EDT...

AT 236 PM EDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORM 6
MILES NORTHEAST OF WAYNESVILLE...MOVING EAST AT 5 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
WAYNESVILLE...CANTON...LAKE JUNALUSKA...CLYDE...MOUNT PISGAH...B.R.
PARKWAY-BLACK BALSAM TO MOUNT PISGAH...CRUSO...COVE CREEK AND
SUNBURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

DIME TO NICKEL SIZE HAIL CAN CAUSE CONSIDERABLE DAMAGE TO VEHICLES.
CONSIDER MOVING VEHICLES TO A COVERED STORAGE AREA BEFORE THE STORM
ARRIVES.

&&

LAT...LON 3564 8287 3563 8285 3562 8285 3563 8281
      3560 8280 3554 8277 3553 8278 3547 8280
      3544 8278 3542 8275 3541 8275 3542 8302
      3565 8300 3566 8288
TIME...MOT...LOC 1836Z 274DEG 6KT 3556 8292

RWH

Special weather statement, Jul 18, 2:44 PM EDT, 12 minutes before

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Special weather statement, Jul 18, 2:48 PM EDT, 8 minutes before

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Special weather statement, Jul 18, 2:52 PM EDT, 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
252 PM EDT SAT JUL 18 2015

GAZ010-181915-
RABUN GA-
252 PM EDT SAT JUL 18 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF CENTRAL RABUN COUNTY
UNTIL 315 PM EDT...

AT 252 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6
MILES NORTH OF CLAYTON...MOVING SOUTH AT 10 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
CLAYTON...MOUNTAIN CITY...TIGER...DILLARD...SKY VALLEY...BLACK ROCK
MOUNTAIN STATE PARK...LAKEMONT AND LAKE RABUN.

LAT...LON 3500 8326 3490 8319 3489 8320 3488 8324
      3487 8324 3486 8325 3485 8325 3485 8327
      3482 8327 3483 8329 3481 8329 3482 8330
      3481 8330 3479 8332 3478 8332 3474 8346
      3499 8351
TIME...MOT...LOC 1852Z 340DEG 11KT 3497 8339

HG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 12:48 PM EDT	Special Weather Statement	GSP	Polk	27 min
Jul 18, 12:57 PM EDT	Special Weather Statement	GSP	Mecklenburg	33 min
Jul 18, 1:19 PM EDT	Special Weather Statement	GSP	Burke	26 min
Jul 18, 1:21 PM EDT	Special Weather Statement	GSP	Yancey	24 min
Jul 18, 1:24 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Lincoln, Mecklenburg	51 min
Jul 18, 1:37 PM EDT	Special Weather Statement	GSP	Polk	23 min
Jul 18, 1:46 PM EDT	Special Weather Statement	GSP	Burke	29 min
Jul 18, 1:55 PM EDT	Special Weather Statement	GSP	McDowell	35 min
Jul 18, 2:13 PM EDT	Special Weather Statement	GSP	Henderson	32 min
Jul 18, 2:21 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Cleveland, Lincoln	39 min
Jul 18, 2:24 PM EDT	Special Weather Statement	GSP	Polk	36 min
Jul 18, 2:36 PM EDT	Special Weather Statement	GSP	Haywood	24 min
Jul 18, 2:40 PM EDT	Severe Thunderstorm Warning	GSP	McDowell, Polk, Rutherford	50 min
Jul 18, 2:48 PM EDT	Special Weather Statement	GSP	Henderson	27 min
Jul 18, 2:59 PM EDT	Special Weather Statement	GSP	Iredell	31 min
Jul 18, 3:10 PM EDT	Special Weather Statement	GSP	Transylvania	35 min
Jul 18, 3:22 PM EDT	Special Weather Statement	GSP	Gaston	23 min
Jul 18, 4:26 PM EDT	Special Weather Statement	GSP	Haywood	34 min
Jul 18, 12:54 PM EDT	Special Weather Statement	GSP	Pickens	36 min
Jul 18, 2:44 PM EDT	Special Weather Statement	GSP	York	31 min
Jul 18, 3:03 PM EDT	Special Weather Statement	GSP	Spartanburg	27 min
Jul 18, 3:53 PM EDT	Special Weather Statement	GSP	Laurens	37 min
Jul 18, 4:09 PM EDT	Special Weather Statement	GSP	Chester	36 min
Jul 18, 4:14 PM EDT	Special Weather Statement	GSP	Pickens	31 min
Jul 18, 4:19 PM EDT	Special Weather Statement	GSP	Chester	26 min
Jul 18, 4:23 PM EDT	Special Weather Statement	GSP	Greenville	37 min
Jul 18, 4:36 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Pickens	39 min
Jul 18, 4:48 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	42 min
Jul 18, 4:52 PM EDT	Special Weather Statement	GSP	Anderson	23 min
Jul 18, 5:08 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee, Pickens	67 min
Jul 18, 5:15 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville	45 min
Jul 18, 5:19 PM EDT	Special Weather Statement	GSP	Laurens	26 min
Jul 18, 5:34 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenville, Greenwood, Laurens	56 min
Jul 18, 5:47 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson	73 min
Jul 18, 6:09 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood, Laurens	71 min
Jul 18, 2:52 PM EDT	Special Weather Statement	GSP	Rabun	23 min
Jul 18, 4:30 PM EDT	Special Weather Statement	GSP	Stephens	30 min
Jul 18, 6:37 PM EDT	Special Weather Statement	GSP	Elbert	23 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2015 Severe Thunderstorm Warnings in Georgia, 2015 Every severe thunderstorm warning in 2015

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.