Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 1, NWS Nashville, TN

January 17, 2012Hickman County, Maury County, Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Jan 17, 2012, 12:33 PM CST for Hickman County, Maury County, Williamson County, Tennessee. It was in force for 12 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
Jan 17, 2012, 12:33 PM CST (18:33 UTC)
Expired
Jan 17, 2012, 12:45 PM CST
In force
12 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Hickman County, TN, Maury County, TN, Williamson County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.6 hours before the alert went out and 67 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 2012-01-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-01-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 587 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
608 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
587 m²/s²
0-3 km storm-relative helicity
687 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.

601 
WFUS54 KOHX 171833
TOROHX
TNC081-119-187-171900-
/O.NEW.KOHX.TO.W.0001.120117T1833Z-120117T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1233 PM CST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  HICKMAN COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN MAURY COUNTY IN MIDDLE TENNESSEE...
  WESTERN WILLIAMSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 100 PM CST

* AT 1230 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR CENTERVILLE...AND MOVING EAST AT 65 MPH.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF HICKMAN...
  NORTHWESTERN MAURY AND WESTERN WILLIAMSON 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 3598 8704 3568 8697 3565 8756 3583 8760
TIME...MOT...LOC 1833Z 260DEG 56KT 3576 8745

$$

ROSE
1 follow-up statement
067 
WWUS54 KOHX 171845
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1245 PM CST TUE JAN 17 2012

TNC081-119-187-171855-
/O.CAN.KOHX.TO.W.0001.000000T0000Z-120117T1900Z/
WILLIAMSON TN-HICKMAN TN-MAURY TN-
1245 PM CST TUE JAN 17 2012

...THE TORNADO WARNING FOR NORTHWESTERN MAURY...HICKMAN AND WESTERN
WILLIAMSON COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.  HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3598 8704 3568 8697 3565 8756 3583 8760
TIME...MOT...LOC 1845Z 260DEG 56KT 3579 8722

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 17, 10:18 AM CSTSpecial Weather StatementOHXBenton, Houston, Montgomery, Stewart57 min
Jan 17, 11:16 AM CSTSpecial Weather StatementOHXBenton, Houston, Humphreys, Montgomery, Robertson, Stewart59 min
Jan 17, 11:18 AM CSTSevere Thunderstorm WarningOHXBenton, Houston, Humphreys42 min
Jan 17, 11:54 AM CSTSevere Thunderstorm WarningOHXCheatham, Dickson, Hickman, Humphreys, Maury, Williamson51 min
Jan 17, 12:07 PM CSTSpecial Weather StatementOHXCheatham, Davidson, Dickson, Hickman, Macon, Perry and 3 more53 min
Jan 17, 12:56 PM CSTTornado WarningOHXDavidson, Rutherford, Williamson34 min
Jan 17, 12:59 PM CSTSpecial Weather StatementOHXClay, Davidson, DeKalb, Jackson, Lewis, Macon and 8 more61 min
Jan 17, 1:29 PM CSTTornado WarningOHXRutherford, Wilson20 min
Jan 17, 1:59 PM CSTSpecial Weather StatementOHXCannon, Coffee, Van Buren, Warren61 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; the sounding from the Mesonet's radiosonde archive.