Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 265, NWS Greenville-Spartanburg, SC

August 19, 2014Mecklenburg County, North Carolina; York County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 19, 2014, 3:23 PM EDT for Mecklenburg County, North Carolina; York County, South Carolina. It was in force for 56 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 19, 2014, 3:23 PM EDT (19:23 UTC)
Expired: Aug 19, 2014, 4:19 PM EDT
In force: 56 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Mecklenburg County, NC, York County, SC

The radar

The Greer radar (KGSP), 113 km from the middle of the area, began a volume at 19:23 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, 7.4 hours before the alert went out and 147 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: 16 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 953 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 25 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 Aug 19, 2:51 PM EDT, 32 minutes earlier.

Area forecast discussion, Aug 19, 2:51 PM EDT, 32 minutes before

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Hazardous weather outlook, Aug 19, 5:11 AM EDT, 10 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
511 AM EDT TUE AUG 19 2014

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-200915-
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-
511 AM EDT TUE AUG 19 2014

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 ARE EXPECTED TO DEVELOP ACROSS THE REGION
THIS AFTERNOON INTO EARLY EVENING. THE MAIN THREATS WILL BE CLOUD-
TO-GROUND LIGHTNING...GUSTY WINDS...AND TORRENTIAL DOWNPOURS.

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

..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.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

ARK

In the hours before

Special weather statement, Aug 19, 1:30 PM EDT, 1 hour 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
130 PM EDT TUE AUG 19 2014

NCZ082-191815-
UNION-
130 PM EDT TUE AUG 19 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN UNION COUNTY IN THE
PIEDMONT OF NORTH CAROLINA THROUGH 215 PM EDT...

AT 129 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR FAIRVIEW...OR 10 MILES NORTH OF MONROE...
MOVING SOUTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  FAIRVIEW...
  UNIONVILLE...

PEA SIZE HAIL...WIND GUSTS UP TO 40 MPH...AND TORRENTIAL RAINFALL
ARE EXPECTED WITH THIS STORM.

LAT...LON 3492 8044 3508 8071 3521 8055 3517 8046
      3518 8041 3513 8029

HG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 1:30 PM EDT	Special Weather Statement	GSP	Union	45 min
Aug 19, 4:22 PM EDT	Special Weather Statement	GSP	Chester, Union	23 min
Aug 19, 5:26 PM EDT	Special Weather Statement	GSP	Laurens	49 min
Aug 19, 6:19 PM EDT	Areal Flood Advisory	GSP	Greenville, Laurens	2 hr
Aug 18, 8:49 PM EDT	Special Weather Statement	GSP	Elbert	56 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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.