Alert archive / Tennessee / Tornado Warnings in 2009

Tornado Warning 76, NWS Nashville, TN

June 11, 2009Cheatham County, Montgomery County, Robertson County, Tennessee

NWS Nashville, TN issued this tornado warning at Jun 11, 2009, 9:59 AM CDT for Cheatham County, Montgomery County, Robertson County, Tennessee. It was in force for 31 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: Jun 11, 2009, 9:59 AM CDT (14:59 UTC)
Expired: Jun 11, 2009, 10:30 AM CDT
In force: 31 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Cheatham County, TN, Montgomery County, TN, Robertson County, TN

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 11, 8:40 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 3.0 hours before the alert went out and 51 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2748 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 587 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOHX 111459
TOROHX
TNC021-125-147-111530-
/O.NEW.KOHX.TO.W.0076.090611T1459Z-090611T1530Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
959 AM CDT THU JUN 11 2009

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CHEATHAM COUNTY IN MIDDLE TENNESSEE...
  EAST CENTRAL MONTGOMERY COUNTY IN MIDDLE TENNESSEE...
  ROBERTSON COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF SPRINGFIELD...

* UNTIL 1030 AM CDT

* AT 959 AM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 16
  MILES WEST OF SPRINGFIELD...OR 11 MILES NORTHWEST OF ASHLAND
  CITY...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  SPRINGFIELD BY 1030 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 PM CDT
THURSDAY AFTERNOON FOR CENTRAL TENNESSEE.

&&

LAT...LON 3648 8666 3630 8718 3645 8730 3666 8704
TIME...MOT...LOC 1500Z 237DEG 26KT 3643 8714

$$

07

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:28 AM CDT	Severe Thunderstorm Warning	OHX	Perry	32 min
Jun 11, 8:01 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Perry	29 min
Jun 11, 8:18 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury, Williamson	27 min
Jun 11, 8:42 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Williamson	33 min
Jun 11, 9:10 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Williamson	35 min
Jun 11, 9:38 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford, Wilson	52 min
Jun 11, 9:46 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Sumner, Wilson	29 min
Jun 11, 9:56 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Grundy, Warren	49 min
Jun 11, 10:14 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, Coffee, DeKalb, Grundy, Rutherford, Warren and 1 more	31 min
Jun 11, 10:19 AM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Grundy, Putnam, Smith, Van Buren, Warren and 1 more	41 min
Jun 11, 10:43 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Macon, Sumner, Trousdale	32 min
Jun 11, 10:48 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Putnam, Van Buren, White	42 min
Jun 11, 11:09 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Cumberland, Fentress, Jackson, Overton, Putnam	36 min
Jun 11, 11:33 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Fentress, Overton, Pickett	42 min

Nearby

Tornado Warnings in Tennessee, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.