Alert archive / North Carolina / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 221, NWS Greenville-Spartanburg, SC

August 10, 2015Alexander County, Caldwell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 10, 2015, 5:04 PM EDT for Alexander County, Caldwell County, North Carolina. It was in force for 41 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: Aug 10, 2015, 5:04 PM EDT (21:04 UTC)
Expired: Aug 10, 2015, 5:45 PM EDT
In force: 41 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Alexander County, NC, Caldwell County, NC

The radar

The Greer radar (KGSP), 141 km from the middle of the area, began a volume at 21:05 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.1 hours before the alert went out and 132 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: 127 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 905 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Aug 10, 4:54 PM EDT, 10 minutes earlier.

Area forecast discussion, Aug 10, 4:54 PM EDT, 10 minutes before

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Hazardous weather outlook, Aug 10, 3:30 PM EDT, 1 hour 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
330 PM EDT MON AUG 10 2015

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-111930-
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-
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-CHESTER-GREENWOOD-
330 PM EDT MON AUG 10 2015

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

.DAY ONE...TONIGHT.

SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO THE EVENING ACROSS
THE AREA. SCATTERED STRONG STORMS ARE EXPECTED WITH GUSTY WINDS...
HEAVY RAIN...AND FREQUENT CLOUD TO GROUND LIGHTNING. ISOLATED
SEVERE STORMS ARE ALSO EXPECTED TO DEVELOP...WITH DAMAGING WIND
GUSTS THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

..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.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...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.

In the hours before

Local storm report, Aug 10, 3:51 PM EDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
351 PM EDT MON AUG 10 2015

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

0225 PM     TSTM WND DMG     3 SE BOWMAN             34.17N 83.00W
08/10/2015                   ELBERT             GA   911 CALL CENTER

            TWO TREES DOWN NEAR DEWY ROSE.

&&

OUTLAW

Special weather statement, Aug 10, 4:32 PM EDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
432 PM EDT MON AUG 10 2015

NCZ051-058-059-102115-
NORTHERN JACKSON NC-SWAIN NC-GRAHAM NC-
432 PM EDT MON AUG 10 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHWESTERN
JACKSON...SWAIN AND GRAHAM COUNTIES UNTIL 515 PM EDT...

AT 432 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6
MILES NORTHWEST OF ROBBINSVILLE...OR NEAR LAKE SANTEETLAH...MOVING
EAST AT 45 MPH.

WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SYLVA...BRYSON CITY...ROBBINSVILLE...CHEROKEE...WEBSTER...
DILLSBORO...TOWN OF SANTEETLAH...LAKE SANTEETLAH...FONTANA VILLAGE
AND SMOKY MOUNTAINS-FONTANA AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS
DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED
ROADS. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE
RAPIDLY. SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS.

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 3543 8398 3553 8378 3560 8323 3533 8319
      3532 8333 3533 8334 3533 8340 3532 8341
      3533 8343 3530 8346 3525 8398 3531 8400
TIME...MOT...LOC 2032Z 262DEG 38KT 3539 8390

JPT

Special weather statement, Aug 10, 4:37 PM EDT, 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
437 PM EDT MON AUG 10 2015

SCZ003-006-007-102115-
GREATER GREENVILLE SC-GREENVILLE MOUNTAINS SC-SPARTANBURG SC-
437 PM EDT MON AUG 10 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHWESTERN
SPARTANBURG AND NORTHEASTERN GREENVILLE COUNTIES UNTIL 515 PM EDT...

AT 436 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES NORTH OF GREENVILLE DOWNTOWN...OR NEAR PARIS MOUNTAIN STATE
PARK...MOVING EAST AT 25 MPH.

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

LOCATIONS IMPACTED INCLUDE...
GREENVILLE DOWNTOWN...GREER...TAYLORS...TRAVELERS REST...DUNCAN...
LYMAN...WELLFORD...INMAN...REIDVILLE AND GSP AIRPORT.

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.

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 3490 8249 3507 8245 3506 8204 3479 8209
TIME...MOT...LOC 2036Z 280DEG 20KT 3498 8238

RWH

Special weather statement, Aug 10, 4:39 PM EDT, 25 minutes before

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Local storm report, Aug 10, 4:55 PM EDT, 9 minutes before

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Local storm report, Aug 10, 5:01 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.

Issued	Product	Office	Counties	Lasted
Aug 10, 4:32 PM EDT	Special Weather Statement	GSP	Graham, Swain	43 min
Aug 10, 4:39 PM EDT	Special Weather Statement	GSP	Alexander	51 min
Aug 10, 5:27 PM EDT	Special Weather Statement	GSP	Cleveland	33 min
Aug 10, 5:45 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Caldwell	45 min
Aug 10, 6:00 PM EDT	Special Weather Statement	GSP	Catawba, Cleveland, Lincoln	30 min
Aug 10, 6:33 PM EDT	Special Weather Statement	GSP	Gaston, Lincoln, Mecklenburg	27 min
Aug 10, 6:35 PM EDT	Special Weather Statement	GSP	Alexander, Iredell	25 min
Aug 10, 6:44 PM EDT	Special Weather Statement	GSP	Madison	31 min
Aug 10, 7:00 PM EDT	Special Weather Statement	GSP	Gaston, Mecklenburg	30 min
Aug 10, 7:02 PM EDT	Special Weather Statement	GSP	Davie, Iredell, Rowan	28 min
Aug 10, 7:18 PM EDT	Special Weather Statement	GSP	Avery, Mitchell, Yancey	27 min
Aug 10, 7:31 PM EDT	Special Weather Statement	GSP	Cabarrus, Davie, Mecklenburg, Rowan	29 min
Aug 10, 4:25 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee, Pickens	50 min
Aug 10, 4:37 PM EDT	Special Weather Statement	GSP	Greenville	38 min
Aug 10, 5:27 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee, Pickens	63 min
Aug 10, 6:31 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenwood, Oconee	59 min
Aug 10, 7:26 PM EDT	Special Weather Statement	GSP	Greenwood	49 min
Aug 10, 1:52 PM EDT	Special Weather Statement	GSP	Elbert	23 min
Aug 10, 2:16 PM EDT	Severe Thunderstorm Warning	GSP	Elbert	59 min
Aug 10, 2:24 PM EDT	Special Weather Statement	GSP	Rabun	51 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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.