Alert archive / Tennessee / Tornado Warnings in 2009

Tornado Warning 73, NWS Nashville, TN

May 8, 2009Overton County, Pickett County, Tennessee

NWS Nashville, TN issued this tornado warning at May 8, 2009, 3:32 PM CDT for Overton County, Pickett 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: May 8, 2009, 3:32 PM CDT (20:32 UTC)
Expired: May 8, 2009, 4:00 PM CDT
In force: 28 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Overton County, TN, Pickett County, TN

The radar

The Nashville radar (KOHX), 114 km from the middle of the area, began a volume at 20:34 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 8, 12:44 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.5 hours before the alert went out and 121 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: 117 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 739 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOHX 082032
TOROHX
TNC133-137-082100-
/O.NEW.KOHX.TO.W.0073.090508T2032Z-090508T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
332 PM CDT FRI MAY 8 2009

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN OVERTON COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN PICKETT COUNTY IN MIDDLE TENNESSEE...

* UNTIL 400 PM CDT

* AT 329 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES WEST OF
  LIVINGSTON...MOVING EAST NORTHEAST AT 45 MPH.

* THE TORNADO WILL BE NEAR...
  LIVINGSTON BY 340 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD. 

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 700 PM.

&&

LAT...LON 3654 8508 3636 8512 3636 8549 3645 8548
      3649 8544 3650 8540 3649 8538 3652 8537
      3653 8534
TIME...MOT...LOC 2031Z 250DEG 41KT 3642 8546

$$

19

1 follow-up statement

000 
WWUS54 KOHX 082052
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
352 PM CDT FRI MAY 8 2009

TNC133-137-082100-
/O.CON.KOHX.TO.W.0073.000000T0000Z-090508T2100Z/
OVERTON TN-PICKETT TN-
352 PM CDT FRI MAY 8 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
SOUTHWESTERN PICKETT AND NORTHERN OVERTON COUNTIES...

AT 350 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR 
LIVINGSTON...MOVING EAST AT 45 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FRIDAY EVENING
FOR CENTRAL TENNESSEE.

&&

LAT...LON 3639 8511 3636 8524 3636 8537 3649 8543
      3650 8541 3649 8538 3652 8537 3653 8532
      3654 8518 3653 8508
TIME...MOT...LOC 2051Z 250DEG 41KT 3644 8528

$$

BOYD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 4:10 AM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Stewart	35 min
May 8, 4:18 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Williamson	27 min
May 8, 4:32 AM CDT	Severe Thunderstorm Warning	OHX	Macon, Robertson, Sumner	43 min
May 8, 5:49 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Wilson	26 min
May 8, 6:18 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Warren	27 min
May 8, 8:41 AM CDT	Areal Flood Advisory	OHX	Davidson	3 hr
May 8, 11:30 AM CDT	Flash Flood Watch	OHX	Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 33 more	37 hr
May 8, 1:05 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	40 min
May 8, 1:16 PM CDT	Tornado Warning	OHX	Montgomery, Stewart	44 min
May 8, 1:43 PM CDT	Tornado Warning	OHX	Montgomery, Robertson	47 min
May 8, 2:14 PM CDT	Tornado Warning	OHX	Macon, Sumner	31 min
May 8, 2:30 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	30 min
May 8, 2:30 PM CDT	Tornado Warning	OHX	Robertson, Sumner	45 min
May 8, 2:38 PM CDT	Tornado Warning	OHX	Macon	37 min
May 8, 2:59 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	16 min
May 8, 3:08 PM CDT	Tornado Warning	OHX	Clay, Macon	22 min
May 8, 3:14 PM CDT	Tornado Warning	OHX	Macon	31 min
May 8, 3:23 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Overton	22 min
May 8, 3:24 PM CDT	Tornado Warning	OHX	Clay, Overton, Pickett	51 min
May 8, 3:59 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	46 min
May 8, 4:02 PM CDT	Tornado Warning	OHX	Fentress, Pickett	28 min
May 8, 4:07 PM CDT	Areal Flood Advisory	OHX	Fentress, Overton, Pickett	3 hr
May 8, 4:29 PM CDT	Tornado Warning	OHX	Fentress	16 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.