Alert archive / Tennessee / Tornado Warnings in 2009

Tornado Warning 92, NWS Nashville, TN

June 30, 2009Fentress County, Overton County, Tennessee

NWS Nashville, TN issued this tornado warning at Jun 30, 2009, 10:47 PM CDT for Fentress County, Overton County, Tennessee. It was in force for 28 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 30, 2009, 10:47 PM CDT (03:47 UTC)
Expired: Jun 30, 2009, 11:15 PM CDT
In force: 28 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Fentress County, TN, Overton County, TN

The radar

The Nashville radar (KOHX), 134 km from the middle of the area, began a volume at 03:48 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 3.8 hours before the alert went out and 140 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2566 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 191 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOHX 010347
TOROHX
TNC049-133-010415-
/O.NEW.KOHX.TO.W.0092.090701T0347Z-090701T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1047 PM CDT TUE JUN 30 2009

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL FENTRESS COUNTY IN MIDDLE TENNESSEE...
  EAST CENTRAL OVERTON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1115 PM CDT

* AT 1045 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER EAST
  CENTRAL OVERTON COUNTY...OR 8 MILES EAST OF LIVINGSTON...MOVING   
EAST SOUTHEAST AT 30 MPH.

* THE TORNADO WILL BE OVER...
  RURAL WESTERN FENTRESS COUNTY AT 1100 PM CDT
  RURAL CENTRAL FENTRESS COUNTY AT 1110 PM 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.

&&

LAT...LON 3628 8495 3639 8524 3644 8519 3644 8514
      3641 8511 3642 8509 3643 8509 3643 8508
      3637 8491
TIME...MOT...LOC 0346Z 289DEG 28KT 3641 8518

$$
19

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 9:33 PM CDT	Severe Thunderstorm Warning	OHX	Clay	27 min
Jun 30, 9:35 PM CDT	Severe Thunderstorm Warning	OHX	Macon	25 min
Jun 30, 10:02 PM CDT	Severe Thunderstorm Warning	OHX	Clay	28 min
Jun 30, 10:19 PM CDT	Severe Thunderstorm Warning	OHX	Overton, Pickett	26 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; radar from the NEXRAD Level II archive.