Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 174, NWS Greenville-Spartanburg, SC

June 19, 2010Jackson County, Transylvania County, North Carolina; Oconee County, Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 19, 2010, 3:50 PM EDT for Jackson County, Transylvania County, North Carolina; Oconee County, Pickens County, South Carolina. It was in force for 55 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 19, 2010, 3:50 PM EDT (19:50 UTC)
Expired
Jun 19, 2010, 4:45 PM EDT
In force
55 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Jackson County, NC, Transylvania County, NC, Oconee County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 67 km from the middle of the area, began a volume at 19:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 19, 1:13 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.8 hours before the alert went out and 234 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 2010-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1143 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 2010-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
1143 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
998 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
30 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 19, 2:52 PM EDT, 58 minutes earlier.

Area forecast discussion, Jun 19, 2:52 PM EDT, 58 minutes before
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Hazardous weather outlook, Jun 19, 1:52 PM EDT, 1 hour 58 minutes before
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In the hours before

Special weather statement, Jun 19, 2:14 PM EDT, 1 hour 36 minutes before
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Special weather statement, Jun 19, 2:45 PM EDT, 1 hour 5 minutes before
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Special weather statement, Jun 19, 3:19 PM EDT, 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
319 PM EDT SAT JUN 19 2010

NCZ053-064-065-192000-
BUNCOMBE-HENDERSON-TRANSYLVANIA-
319 PM EDT SAT JUN 19 2010

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN TRANSYLVANIA...
NORTHWESTERN HENDERSON AND SOUTHWESTERN BUNCOMBE COUNTIES THROUGH 400
PM EDT...

AT 315 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHWEST OF BENT CREEK...OR 9 MILES
SOUTHWEST OF DOWNTOWN ASHEVILLE...MOVING SOUTH AT 5 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO I-26 AT
  I-40...SKYLAND...CANDLER...BILTMORE FOREST...BENT CREEK...AVERY
  CREEK...MOUNTAIN HOME...MILLS RIVER...HENDERSONVILLE...FLETCHER AND
  ETOWAH.

VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.

LAT...LON 3533 8242 3525 8271 3542 8275 3542 8274
      3543 8275 3552 8278 3554 8277 3559 8257

07
Special weather statement, Jun 19, 3:28 PM EDT, 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
328 PM EDT SAT JUN 19 2010

NCZ063-064-SCZ002-192015-
PICKENS MOUNTAINS-SOUTHERN JACKSON-TRANSYLVANIA-
328 PM EDT SAT JUN 19 2010

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN PICKENS...
SOUTHEASTERN JACKSON AND SOUTHWESTERN TRANSYLVANIA COUNTIES THROUGH
415 PM EDT...

AT 326 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF LAKE TOXAWAY...OR 15 MILES
WEST OF BREVARD...MOVING SOUTH AT 5 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO WOLF
  MOUNTAIN...CASHIERS...SAPPHIRE...LAKE TOXAWAY AND BALSAM GROVE.

VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.

LAT...LON 3526 8309 3526 8287 3500 8282 3500 8292
      3500 8291 3503 8291 3504 8290 3505 8291
      3500 8310 3501 8312

07

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 2:45 PM EDTSpecial Weather StatementGSPJackson45 min
Jun 19, 3:19 PM EDTSpecial Weather StatementGSPHenderson41 min
Jun 19, 3:28 PM EDTSpecial Weather StatementGSPTransylvania47 min
Jun 19, 6:43 PM EDTSpecial Weather StatementGSPBurke47 min
Jun 19, 7:06 PM EDTSpecial Weather StatementGSPPolk39 min
Jun 19, 7:09 PM EDTSpecial Weather StatementGSPCaldwell51 min
Jun 19, 7:35 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell55 min
Jun 19, 4:18 PM EDTSevere Thunderstorm WarningGSPOconee57 min
Jun 19, 2:14 PM EDTSpecial Weather StatementGSPStephens46 min
Jun 19, 5:42 PM EDTSevere Thunderstorm WarningGSPHabersham, Rabun, Stephens63 min
Jun 19, 6:42 PM EDTSpecial Weather StatementGSPRabun48 min
Jun 19, 6:47 PM EDTSevere Thunderstorm WarningGSPHabersham, Rabun, Stephens58 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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.