Alert archive / Tennessee / Tornado Warnings in 2013

Tornado Warning 41, NWS Nashville, TN

December 21, 2013Dickson County, Hickman County, Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Dec 21, 2013, 8:42 PM CST for Dickson County, Hickman County, Williamson County, Tennessee. It was in force for 33 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: Dec 21, 2013, 8:42 PM CST (02:42 UTC)
Expired: Dec 21, 2013, 9:15 PM CST
In force: 33 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Dickson County, TN, Hickman County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 76 km from the middle of the area, began a volume at 02:44 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
Dec 21, 5:46 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.7 hours before the alert went out and 67 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: 417 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 603 m above ground
0-6 km bulk shear: 78 kt
0-1 km storm-relative helicity: 587 m²/s²
0-3 km storm-relative helicity: 694 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

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

718 
WFUS54 KOHX 220242
TOROHX
TNC043-081-187-220315-
/O.NEW.KOHX.TO.W.0041.131222T0242Z-131222T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
842 PM CST SAT DEC 21 2013

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN DICKSON COUNTY IN MIDDLE TENNESSEE...
  NORTHERN HICKMAN COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN WILLIAMSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 915 PM CST

* AT 837 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 8 MILES WEST OF CENTERVILLE...AND MOVING
  NORTHEAST AT 65 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CENTERVILLE...BURNS...WHITE BLUFF...NUNNELLY...LYLES...BON AQUA AND
  PRIMM SPRINGS.

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 3612 8721 3583 8709 3582 8714 3585 8721
      3580 8722 3573 8757 3588 8765
TIME...MOT...LOC 0242Z 245DEG 56KT 3584 8751

$$

21

2 follow-up statements

939 
WWUS54 KOHX 220252
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
852 PM CST SAT DEC 21 2013

TNC043-081-187-220315-
/O.CON.KOHX.TO.W.0041.000000T0000Z-131222T0315Z/
WILLIAMSON TN-DICKSON TN-HICKMAN TN-
852 PM CST SAT DEC 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN HICKMAN...
SOUTHEASTERN DICKSON AND NORTHWESTERN WILLIAMSON COUNTIES UNTIL 915
PM CST...

AT 850 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 9 MILES NORTHEAST OF CENTERVILLE...MOVING NORTHEAST
AT 65 MPH.

LOCATIONS IMPACTED INCLUDE...
  CENTERVILLE...WHITE BLUFF...BURNS...NUNNELLY...LYLES...BON AQUA...
  PINEWOOD AND PRIMM SPRINGS.

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.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST SUNDAY MORNING
FOR CENTRAL TENNESSEE. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
200 AM CST SUNDAY MORNING FOR CENTRAL TENNESSEE.

LAT...LON 3612 8721 3583 8709 3582 8714 3585 8721
      3580 8722 3573 8757 3588 8765
TIME...MOT...LOC 0252Z 245DEG 56KT 3590 8731

$$

21

756 
WWUS54 KOHX 220308
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
908 PM CST SAT DEC 21 2013

TNC043-081-187-220318-
/O.EXP.KOHX.TO.W.0041.000000T0000Z-131222T0315Z/
WILLIAMSON TN-DICKSON TN-HICKMAN TN-
908 PM CST SAT DEC 21 2013

...THE TORNADO WARNING FOR NORTHERN HICKMAN...SOUTHEASTERN DICKSON
AND NORTHWESTERN WILLIAMSON COUNTIES WILL EXPIRE AT 915 PM CST...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST SUNDAY MORNING
FOR CENTRAL TENNESSEE. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
200 AM CST SUNDAY MORNING FOR CENTRAL TENNESSEE.

LAT...LON 3612 8721 3583 8709 3582 8714 3585 8721
      3580 8722 3573 8757 3588 8765
TIME...MOT...LOC 0308Z 245DEG 56KT 3600 8703

$$

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 21, 7:36 PM CST	Severe Thunderstorm Warning	OHX	Benton, Houston, Humphreys, Montgomery, Stewart	24 min
Dec 21, 7:53 PM CST	Severe Thunderstorm Warning	OHX	Benton, Humphreys, Perry	22 min
Dec 21, 7:56 PM CST	Severe Thunderstorm Warning	OHX	Benton, Dickson, Houston, Humphreys, Montgomery, Stewart	34 min
Dec 21, 8:00 PM CST	Tornado Warning	OHX	Benton, Houston, Humphreys, Montgomery, Stewart	30 min
Dec 21, 8:09 PM CST	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys, Lewis, Perry, Wayne	36 min
Dec 21, 8:18 PM CST	Severe Thunderstorm Warning	OHX	Wayne	42 min
Dec 21, 8:21 PM CST	Tornado Warning	OHX	Cheatham, Montgomery, Robertson	39 min
Dec 21, 8:24 PM CST	Tornado Warning	OHX	Cheatham, Dickson, Humphreys, Montgomery	36 min
Dec 21, 8:39 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Lawrence, Lewis, Maury and 3 more	36 min
Dec 21, 8:51 PM CST	Tornado Warning	OHX	Cheatham, Davidson, Dickson, Sumner, Williamson	24 min
Dec 21, 8:53 PM CST	Tornado Warning	OHX	Robertson, Sumner	37 min
Dec 21, 9:05 PM CST	Severe Thunderstorm Warning	OHX	Davidson, Hickman, Lawrence, Lewis, Maury, Wayne and 1 more	40 min
Dec 21, 9:13 PM CST	Tornado Warning	OHX	Davidson, Sumner, Wilson	32 min
Dec 21, 9:15 PM CST	Special Weather Statement	OHX	Lawrence, Wayne	45 min
Dec 21, 9:21 PM CST	Tornado Warning	OHX	Macon, Sumner, Trousdale	39 min
Dec 21, 9:37 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Davidson, Giles, Lawrence, Marshall, Maury and 3 more	38 min
Dec 21, 9:38 PM CST	Tornado Warning	OHX	Davidson, Sumner, Trousdale, Wilson	22 min
Dec 21, 9:53 PM CST	Severe Thunderstorm Warning	OHX	Clay, Jackson, Macon, Smith, Trousdale	37 min
Dec 21, 9:56 PM CST	Severe Thunderstorm Warning	OHX	DeKalb, Smith, Trousdale, Wilson	49 min
Dec 21, 10:09 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, DeKalb, Giles, Lawrence, Marshall and 3 more	36 min
Dec 21, 10:09 PM CST	Tornado Warning	OHX	Smith, Wilson	36 min
Dec 21, 10:12 PM CST	Tornado Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	33 min
Dec 21, 10:18 PM CST	Tornado Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Wilson	27 min
Dec 21, 10:30 PM CST	Tornado Warning	OHX	Clay, Jackson, Smith	30 min
Dec 21, 10:34 PM CST	Severe Thunderstorm Warning	OHX	Clay, Jackson, Overton, Pickett	26 min
Dec 21, 10:42 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, DeKalb, Giles, Lawrence, Marshall and 2 more	48 min
Dec 21, 10:44 PM CST	Severe Thunderstorm Warning	OHX	Jackson, Overton, Pickett, Putnam, Smith	31 min
Dec 21, 10:59 PM CST	Severe Thunderstorm Warning	OHX	Clay, Fentress, Overton, Pickett	31 min
Dec 21, 11:02 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, DeKalb, Putnam, Rutherford and 2 more	43 min
Dec 21, 11:16 PM CST	Severe Thunderstorm Warning	OHX	Fentress, Overton, Pickett, Putnam	59 min
Dec 21, 11:36 PM CST	Severe Thunderstorm Warning	OHX	Cumberland, DeKalb, Fentress, Overton, Putnam, Van Buren and 2 more	39 min
Dec 21, 11:44 PM CST	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Van Buren, Warren	46 min
Dec 22, 12:13 AM CST	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Putnam, Van Buren, White	47 min
Dec 22, 12:16 AM CST	Severe Thunderstorm Warning	OHX	Fentress	14 min
Dec 22, 12:29 AM CST	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Van Buren, Warren	31 min
Dec 22, 1:59 PM CST	River Flood Advisory	OHX	Grundy	10 hr

Nearby

Tornado Warnings in Tennessee, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.