Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 64, NWS Nashville, TN

October 1, 20124 counties in Tennessee

NWS Nashville, TN issued this tornado warning at Oct 1, 2012, 5:13 PM CDT for 4 counties in Tennessee. It was in force for 32 min. 4 reports 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
Oct 1, 2012, 5:13 PM CDT (22:13 UTC)
Expired
Oct 1, 2012, 5:45 PM CDT
In force
32 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties DeKalb County, TN, Smith County, TN, Trousdale County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 46 km from the middle of the area, began a volume at 22:14 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
Oct 1, 5:20 PM CDTTSTM WND DMG5 S Watertown, TNSEVERAL TREES AND POWER LINES WERE DOWNED ON MAIN STREET IN STATESVILLE AND STONER...AT 711 GREENVALE ROAD A SHED WAS BLOWN DOWN...AND ON KNIGHT CREEK BETWEEN STATESVILLE AND WATERTOWN REPORTS OF A HOME MOVED OFF ITS FOUNDATION AND OUTBUILDING DESTROYED
Oct 1, 5:31 PM CDTTORNADO6 Nne Watertown, TNA LOW END EF-1 TORNADO TOUCHED DOWN NEAR I-40 IN THE GRANT COMMUNITY BEFORE ENDING NEAR HWY 141. SEVERAL TREES WERE BLOWN DOWN ON POSSUM HOLLOW RD NEAR I-40. MORE SUBSTANTIAL TREE DAMAGE OCCURRED ON A FARM LOCATED SOUTH OF SP MCCLANAHAN ROAD WHERE DOZENS OF LA
Oct 1, 5:32 PM CDTTORNADO6 Nne Watertown, TNAN EF-0 TORNADO TOUCHED DOWN JUST NORTH OF INTERSTATE 40 IN THE GRANT COMMUNITY BEFORE ENDING NEAR HIGHWAY 141. DAMAGE INCLUDED NUMEROUS TREES BLOWN OVER OR SNAPPED WITH SOME UNDERCARRIAGE DAMAGE AT A MOBILE HOME ON SP MCCLANAHAN ROAD.
Oct 1, 5:33 PM CDTTSTM WND DMG10 Ssw Carthage, TNPOSSIBLE TORNADO TOUCHDOWN AT 57 SP MCCLANAHAN ROAD NEAR THE GRANT COMMUNITY WITH TREES DOWNED ACROSS THE ROADWAY

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
Oct 1, 1:16 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.2 hours before the alert went out and 50 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, Nashville Metro, TN at 12:00Z on 2012-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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, Nashville Metro, TN at 12:00Z on 2012-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 410 square meters per square second.19395878Sfc1 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
459 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
410 m²/s²
0-3 km storm-relative helicity
734 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

611 
WFUS54 KOHX 012213
TOROHX
TNC041-159-169-189-012245-
/O.NEW.KOHX.TO.W.0064.121001T2213Z-121001T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
513 PM CDT MON OCT 1 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN DE KALB COUNTY IN MIDDLE TENNESSEE...
  SMITH COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN TROUSDALE COUNTY IN MIDDLE TENNESSEE...
  EASTERN WILSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 545 PM CDT

* AT 511 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR WATERTOWN...OR 15 MILES NORTH OF WOODBURY...
  AND MOVING NORTH AT 30 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  WATERTOWN AROUND 520 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE ALEXANDRIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3635 8586 3596 8602 3597 8626 3639 8627
TIME...MOT...LOC 2213Z 191DEG 26KT 3605 8612

$$

ROSE
2 follow-up statements
706 
WWUS54 KOHX 012226
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
526 PM CDT MON OCT 1 2012

TNC041-012236-
/O.CAN.KOHX.TO.W.0064.000000T0000Z-121001T2245Z/
DE KALB TN-
526 PM CDT MON OCT 1 2012

...THE TORNADO WARNING FOR NORTHWESTERN DE KALB COUNTY IS
CANCELED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3636 8593 3609 8600 3609 8605 3608 8606
      3606 8605 3604 8605 3606 8624 3638 8619
TIME...MOT...LOC 2226Z 189DEG 28KT 3615 8611

$$

TNC159-169-189-012245-
/O.CON.KOHX.TO.W.0064.000000T0000Z-121001T2245Z/
SMITH TN-TROUSDALE TN-WILSON TN-
526 PM CDT MON OCT 1 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN WILSON...SOUTH
CENTRAL TROUSDALE AND WESTERN SMITH COUNTIES UNTIL 545 PM CDT...

AT 524 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR WATERTOWN...OR 13 MILES SOUTHWEST OF
CARTHAGE...MOVING NORTH AT 30 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN
WILSON...SOUTH CENTRAL TROUSDALE AND WESTERN SMITH COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3636 8593 3609 8600 3609 8605 3608 8606
      3606 8605 3604 8605 3606 8624 3638 8619
TIME...MOT...LOC 2226Z 189DEG 28KT 3615 8611

$$

ROSE
860 
WWUS54 KOHX 012237
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
537 PM CDT MON OCT 1 2012

TNC159-169-189-012245-
/O.CON.KOHX.TO.W.0064.000000T0000Z-121001T2245Z/
SMITH TN-TROUSDALE TN-WILSON TN-
537 PM CDT MON OCT 1 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN WILSON...
SOUTH CENTRAL TROUSDALE AND WESTERN SMITH COUNTIES UNTIL 545 PM
CDT...

AT 533 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 7 MILES NORTHEAST OF WATERTOWN...OR 9 MILES
SOUTHWEST OF CARTHAGE...MOVING NORTH AT 30 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
WILSON...SOUTH CENTRAL TROUSDALE AND WESTERN SMITH COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3615 8621 3638 8615 3637 8601 3635 8593
      3611 8600
TIME...MOT...LOC 2237Z 194DEG 28KT 3622 8607

$$

ROSE

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 1, 1:46 PM CDTSpecial Weather StatementOHXBedford, Marshall, Rutherford29 min
Oct 1, 2:30 PM CDTSpecial Weather StatementOHXRutherford30 min
Oct 1, 3:18 PM CDTSpecial Weather StatementOHXSmith, Trousdale27 min
Oct 1, 4:05 PM CDTSpecial Weather StatementOHXRutherford25 min
Oct 1, 4:37 PM CDTSpecial Weather StatementOHXCannon23 min
Oct 1, 5:06 PM CDTSpecial Weather StatementOHXSmith, Wilson24 min
Oct 1, 5:21 PM CDTAreal Flood AdvisoryOHXRutherford, Trousdale, Wilson3 hr
Oct 1, 5:41 PM CDTTornado WarningOHXSmith, Trousdale19 min
Oct 1, 5:57 PM CDTSpecial Weather StatementOHXJackson33 min
Oct 1, 6:06 PM CDTFlash Flood WarningOHXRutherford, Trousdale, Wilson2 hr
Oct 1, 6:41 PM CDTSpecial Weather StatementOHXPutnam34 min

Nearby

Tornado Warnings in Tennessee, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.