Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 340, NWS Greenville-Spartanburg, SC

July 5, 2012Jackson County, Macon County, Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 5, 2012, 4:39 PM EDT for Jackson County, Macon County, Transylvania County, North Carolina. It was in force for 66 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 5, 2012, 4:39 PM EDT (20:39 UTC)
Expired
Jul 5, 2012, 5:45 PM EDT
In force
66 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Jackson County, NC, Macon County, NC, Transylvania County, NC

The radar

The Greer radar (KGSP), 92 km from the middle of the area, began a volume at 20:42 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.

What was reported inside it

TimeReportWhereRemark
Jul 5, 5:40 PM EDTHAIL 14 N Highlands, NCDIME TO QUARTER SIZED HAIL ON LOST HORSE TRAIL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 5, 1:37 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.7 hours before the alert went out and 231 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 2012-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1009 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 2012-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
1009 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1299 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

882 
WUUS52 KGSP 052039
SVRGSP
NCC099-113-175-052145-
/O.NEW.KGSP.SV.W.0340.120705T2039Z-120705T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
439 PM EDT THU JUL 5 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN JACKSON COUNTY IN WESTERN NORTH CAROLINA...
  SOUTHEASTERN MACON COUNTY IN WESTERN NORTH CAROLINA...
  SOUTHWESTERN TRANSYLVANIA COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 545 PM EDT

* AT 434 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES
  NORTHWEST OF LAKE TOXAWAY...OR 16 MILES WEST OF BREVARD...AND
  MOVING SOUTHWEST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  LAKE GLENVILLE.
  CASHIERS.
  HIGHLANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3518 8326 3536 8299 3520 8288 3503 8298
      3499 8343 3500 8345
TIME...MOT...LOC 2039Z 035DEG 22KT 3518 8303

$$

MCAVOY
1 follow-up statement
068 
WWUS52 KGSP 052129
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
529 PM EDT THU JUL 5 2012

NCC099-113-175-052145-
/O.CON.KGSP.SV.W.0340.000000T0000Z-120705T2145Z/
MACON NC-TRANSYLVANIA NC-JACKSON NC-
529 PM EDT THU JUL 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
JACKSON...SOUTHWESTERN TRANSYLVANIA AND SOUTHEASTERN MACON COUNTIES
UNTIL 545 PM EDT...

AT 527 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR HIGHLANDS...OR 13 MILES
SOUTHEAST OF FRANKLIN...MOVING SOUTHWEST AT 5 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  HIGHLANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3517 8326 3517 8290 3503 8298 3499 8339
      3500 8345
TIME...MOT...LOC 2130Z 026DEG 5KT 3507 8320

$$
LANE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 1:17 PM EDTSevere Thunderstorm WarningGSPAlexander, Davie, Iredell53 min
Jul 5, 1:32 PM EDTSpecial Weather StatementGSPMcDowell43 min
Jul 5, 2:58 PM EDTSevere Thunderstorm WarningGSPBurke45 min
Jul 5, 3:06 PM EDTSpecial Weather StatementGSPMcDowell39 min
Jul 5, 3:09 PM EDTSevere Thunderstorm WarningGSPCatawba, Lincoln66 min
Jul 5, 3:18 PM EDTSevere Thunderstorm WarningGSPBuncombe, Henderson, McDowell, Rutherford57 min
Jul 5, 3:56 PM EDTSpecial Weather StatementGSPTransylvania34 min
Jul 5, 4:02 PM EDTSevere Thunderstorm WarningGSPGaston51 min
Jul 5, 4:07 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford53 min
Jul 5, 4:10 PM EDTSevere Thunderstorm WarningGSPBurke, Caldwell65 min
Jul 5, 4:24 PM EDTSevere Thunderstorm WarningGSPAvery, Mitchell, Yancey66 min
Jul 5, 4:26 PM EDTSevere Thunderstorm WarningGSPTransylvania64 min
Jul 5, 4:36 PM EDTSevere Thunderstorm WarningGSPMadison54 min
Jul 5, 4:48 PM EDTSevere Thunderstorm WarningGSPMcDowell57 min
Jul 5, 4:50 PM EDTSevere Thunderstorm WarningGSPIredell42 min
Jul 5, 4:55 PM EDTSevere Thunderstorm WarningGSPCleveland65 min
Jul 5, 5:23 PM EDTSevere Thunderstorm WarningGSPHaywood, Swain67 min
Jul 5, 5:32 PM EDTSevere Thunderstorm WarningGSPBuncombe46 min
Jul 5, 5:37 PM EDTSpecial Weather StatementGSPUnion53 min
Jul 5, 5:43 PM EDTSevere Thunderstorm WarningGSPCleveland, Lincoln, Polk, Rutherford62 min
Jul 5, 5:51 PM EDTSevere Thunderstorm WarningGSPHaywood, Jackson, Macon54 min
Jul 5, 5:54 PM EDTSevere Thunderstorm WarningGSPUnion66 min
Jul 5, 6:10 PM EDTSevere Thunderstorm WarningGSPGraham, Macon, Swain65 min
Jul 5, 6:26 PM EDTSevere Thunderstorm WarningGSPHaywood, Henderson, Transylvania64 min
Jul 5, 6:43 PM EDTSevere Thunderstorm WarningGSPSwain47 min
Jul 5, 6:55 PM EDTSevere Thunderstorm WarningGSPJackson, Macon, Transylvania80 min
Jul 5, 7:00 PM EDTSevere Thunderstorm WarningGSPUnion45 min
Jul 5, 7:17 PM EDTAreal Flood AdvisoryGSPUnion2 hr

Nearby

Severe Thunderstorm Warnings in North Carolina, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.