Alert archive / North Carolina / Tornado Warnings in 2012

Tornado Warning 9, NWS Greenville-Spartanburg, SC

March 2, 2012Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Mar 2, 2012, 9:24 PM EST for Transylvania County, North Carolina. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 2, 2012, 9:24 PM EST (02:24 UTC)
Expired
Mar 2, 2012, 9:48 PM EST
In force
24 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

County Transylvania County, NC

The radar

The Greer radar (KGSP), 69 km from the middle of the area, began a volume at 02:25 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
Mar 2, 3:19 PM ESTTornado WatchSPC8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.4 hours before the alert went out and 261 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 00:00Z on 2012-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 540 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2012-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 square meters per square second.1939587897117Sfc1 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
540 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

205 
WFUS52 KGSP 030224
TORGSP
NCC175-030300-
/O.NEW.KGSP.TO.W.0009.120303T0224Z-120303T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
924 PM EST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN TRANSYLVANIA COUNTY IN WESTERN NORTH CAROLINA...
  THIS INCLUDES THE CITY OF BREVARD...

* UNTIL 1000 PM EST

* AT 921 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES WEST OF
  BALSAM GROVE...OR 11 MILES WEST OF BREVARD...MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BREVARD...
  LITTLE RIVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR STURDIER SHELTER.
OTHERWISE...GO TO AN INTERIOR ROOM ON THE LOWEST LEVEL OF YOUR HOME
OR PLACE OF BUSINESS. MAKE SURE THERE ARE AS MANY WALLS AND FLOORS
BETWEEN YOU AND THE OUTSIDE AS POSSIBLE.

&&

LAT...LON 3522 8295 3524 8293 3529 8292 3531 8290
      3532 8283 3535 8280 3537 8269 3530 8262
      3525 8260 3516 8260 3512 8298
TIME...MOT...LOC 0224Z 259DEG 42KT 3523 8289

$$

MOORE
2 follow-up statements
302 
WWUS52 KGSP 030231
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
931 PM EST FRI MAR 2 2012

NCC175-030300-
/O.CON.KGSP.TO.W.0009.000000T0000Z-120303T0300Z/
TRANSYLVANIA NC-
931 PM EST FRI MAR 2 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM EST FOR
NORTHEASTERN TRANSYLVANIA COUNTY...

AT 929 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 5 MILES WEST OF
BREVARD...MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LITTLE
RIVER

THE STORM WAS WEAKENING IN THE COOLER AIR EAST OF THE HIGHER 
MOUNTAINS. IF THIS TREND CONTINUES...THE WARNING MAY BE CANCELLED.

LAT...LON 3530 8262 3526 8261 3522 8260 3516 8260
      3519 8288 3532 8283 3535 8280 3537 8269
TIME...MOT...LOC 0231Z 259DEG 42KT 3524 8279

$$

MOORE
990 
WWUS52 KGSP 030248
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
948 PM EST FRI MAR 2 2012

NCC175-030258-
/O.CAN.KGSP.TO.W.0009.000000T0000Z-120303T0300Z/
TRANSYLVANIA NC-
948 PM EST FRI MAR 2 2012

...THE TORNADO WARNING FOR NORTHEASTERN TRANSYLVANIA COUNTY IS
CANCELLED...

THE STORM HAS WEAKENED...SO THE WARNING IS CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EST FRIDAY EVENING
FOR NORTHEAST GEORGIA AND WESTERN NORTH CAROLINA AND CENTRAL SOUTH
CAROLINA.

LAT...LON 3530 8262 3526 8261 3522 8260 3516 8260
      3519 8288 3532 8283 3535 8280 3537 8269
TIME...MOT...LOC 0248Z 259DEG 42KT 3528 8255

$$

MOORE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 7:00 PM ESTSpecial Weather StatementGSPMadison, Swain60 min
Mar 2, 7:35 PM ESTSpecial Weather StatementGSPJackson, Macon85 min
Mar 2, 7:51 PM ESTSevere Thunderstorm WarningGSPHaywood, Madison, Yancey54 min
Mar 2, 8:13 PM ESTTornado WarningGSPMacon62 min
Mar 2, 8:44 PM ESTSevere Thunderstorm WarningGSPAvery, Burke, Madison, Mitchell, Yancey50 min
Mar 2, 8:54 PM ESTTornado WarningGSPJackson, Macon, Transylvania39 min
Mar 2, 9:28 PM ESTTornado WarningGSPMacon, Swain27 min
Mar 2, 10:38 PM ESTSevere Thunderstorm WarningGSPMadison37 min
Mar 2, 11:03 PM ESTSevere Thunderstorm WarningGSPMadison, Mitchell, Yancey42 min
Mar 2, 11:20 PM ESTSpecial Weather StatementGSPHenderson, Transylvania25 min
Mar 2, 11:22 PM ESTSevere Thunderstorm WarningGSPAvery, Mitchell38 min
Mar 3, 12:32 AM ESTSpecial Weather StatementGSPMacon, Transylvania118 min
Mar 3, 3:25 AM ESTSpecial Weather StatementGSPUnion50 min

Nearby

Tornado Warnings in North Carolina, 2012Every tornado warning in 2012Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.