Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 50, NWS Nashville, TN

April 26, 2012Rutherford County, Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Apr 26, 2012, 7:01 PM CDT for Rutherford County, Williamson County, Tennessee. It was in force for 29 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
Apr 26, 2012, 7:01 PM CDT (00:01 UTC)
Expired
Apr 26, 2012, 7:30 PM CDT
In force
29 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Rutherford County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 51 km from the middle of the area, began a volume at 00:04 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
Apr 26, 7:06 PM CDTTSTM WND DMG3 Wsw Franklin, TN*** 6 INJ *** TWO VEHICLES OVERTURNED AND FOUR OTHERS DAMAGED AT JIM WARREN PARK. SCORBOARD BLOWN ONTO CARS. 2 INJURIES IN AN OVERTURNED VEHICLE WITH 4 OTHER MINOR INJURIES. POSSIBLE TORNADO.
Apr 26, 7:06 PM CDTTSTM WND DMGFranklin, TNVEHICLES OVERTURNED WITH INJURIES AT JIM WARREN PARK.
Apr 26, 7:11 PM CDTHAIL 1Franklin, TN
Apr 26, 7:11 PM CDTHAIL 1.75Franklin, TN

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
Apr 26, 2:11 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.0 hours before the alert went out and 38 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 00:00Z on 2012-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1239 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, Nashville Metro, TN at 00:00Z on 2012-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939587897Sfc1 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
1239 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1121 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

935 
WFUS54 KOHX 270001
TOROHX
TNC149-187-270030-
/O.NEW.KOHX.TO.W.0050.120427T0001Z-120427T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
701 PM CDT THU APR 26 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL RUTHERFORD COUNTY IN MIDDLE TENNESSEE...
  EASTERN WILLIAMSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 730 PM CDT

* AT 701 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR FRANKLIN...AND MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FRANKLIN AND EAGLEVILLE.

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 3579 8653 3569 8666 3571 8669 3570 8674
      3592 8694 3601 8683
TIME...MOT...LOC 0001Z 318DEG 21KT 3593 8687

$$
31
2 follow-up statements
680 
WWUS54 KOHX 270015
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
715 PM CDT THU APR 26 2012

TNC149-187-270030-
/O.CON.KOHX.TO.W.0050.000000T0000Z-120427T0030Z/
RUTHERFORD TN-WILLIAMSON TN-
715 PM CDT THU APR 26 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN WILLIAMSON
AND WEST CENTRAL RUTHERFORD COUNTIES UNTIL 730 PM CDT...

AT 715 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR FRANKLIN...MOVING SOUTHEAST AT 20 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF SOUTHEASTERN
WILLIAMSON AND WEST CENTRAL RUTHERFORD 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 3571 8669 3570 8674 3571 8675 3586 8689
      3596 8676 3579 8653 3569 8666
TIME...MOT...LOC 0015Z 320DEG 17KT 3588 8682

$$
31
054 
WWUS54 KOHX 270022
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
722 PM CDT THU APR 26 2012

TNC149-187-270030-
/O.CON.KOHX.TO.W.0050.000000T0000Z-120427T0030Z/
RUTHERFORD TN-WILLIAMSON TN-
722 PM CDT THU APR 26 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN WILLIAMSON
AND WEST CENTRAL RUTHERFORD COUNTIES UNTIL 730 PM CDT...

AT 722 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR FRANKLIN...MOVING SOUTHEAST AT 20 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF SOUTHEASTERN
WILLIAMSON AND WEST CENTRAL RUTHERFORD 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 3571 8669 3586 8686 3593 8676 3579 8653
      3569 8666
TIME...MOT...LOC 0022Z 320DEG 17KT 3585 8679

$$
31

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 7:06 PM CDTSevere Thunderstorm WarningOHXPerry, Wayne13 min
Apr 26, 7:11 PM CDTSevere Thunderstorm WarningOHXPerry19 min
Apr 26, 7:14 PM CDTSevere Thunderstorm WarningOHXDavidson31 min
Apr 26, 7:55 PM CDTSpecial Weather StatementOHXRutherford35 min
Apr 26, 7:58 PM CDTSevere Thunderstorm WarningOHXRutherford, Williamson32 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.