Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 2, NWS Nashville, TN

January 17, 2012Davidson County, Rutherford County, Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Jan 17, 2012, 12:56 PM CST for Davidson County, Rutherford County, Williamson County, Tennessee. It was in force for 34 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, 12:56 PM CST (18:56 UTC)
Expired
Jan 17, 2012, 1:30 PM CST
In force
34 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Davidson County, TN, Rutherford County, TN, Williamson County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.9 hours before the alert went out and 8 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.

282 
WFUS54 KOHX 171856
TOROHX
TNC037-149-187-171930-
/O.NEW.KOHX.TO.W.0002.120117T1856Z-120117T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1256 PM CST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN DAVIDSON COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN RUTHERFORD COUNTY IN MIDDLE TENNESSEE...
  NORTHEASTERN WILLIAMSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 130 PM CST

* AT 1255 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 5 MILES SOUTHWEST OF FOREST HILLS...OR 8 MILES
  NORTHWEST OF FRANKLIN...AND MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BELLE MEADE...FOREST HILLS...BRENTWOOD...OAK HILL...LA VERGNE AND
  BERRY HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3617 8657 3613 8655 3596 8653 3594 8697
      3613 8696 3618 8657
TIME...MOT...LOC 1856Z 263DEG 57KT 3604 8690

$$

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, 12:33 PM CSTTornado WarningOHXHickman, Maury, Williamson12 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.