Alert archive / Tennessee / Tornado Warnings in 2015

Tornado Warning 20, NWS Nashville, TN

December 23, 2015Davidson County, Sumner County, Wilson County, Tennessee

NWS Nashville, TN issued this tornado warning at Dec 23, 2015, 7:30 PM CST for Davidson County, Sumner County, Wilson County, Tennessee. It was in force for 30 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 23, 2015, 7:30 PM CST (01:30 UTC)
Expired: Dec 23, 2015, 8:00 PM CST
In force: 30 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Davidson County, TN, Sumner County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 8 km from the middle of the area, began a volume at 01:30 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 23, 4:49 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.5 hours before the alert went out and 5 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: 26 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 624 m above ground
0-6 km bulk shear: 89 kt
0-1 km storm-relative helicity: 598 m²/s²
0-3 km storm-relative helicity: 698 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

099 
WFUS54 KOHX 240130
TOROHX
TNC037-165-189-240200-
/O.NEW.KOHX.TO.W.0020.151224T0130Z-151224T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
730 PM CST WED DEC 23 2015

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN DAVIDSON COUNTY IN MIDDLE TENNESSEE...
  SOUTHWESTERN SUMNER COUNTY IN MIDDLE TENNESSEE...
  WEST CENTRAL WILSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 800 PM CST
    
* AT 730 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER BELLE MEADE...OR NEAR NASHVILLE...MOVING
  NORTHEAST AT 30 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  NASHVILLE AROUND 740 PM CST.
  MADISON AROUND 750 PM CST.
  LAKEWOOD...HERMITAGE AND OLD HICKORY AROUND 755 PM CST.
  MOUNT JULIET...RURAL HILL AND BELINDA CITY AROUND 800 PM CST.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE PERCY
PRIEST LAKE AND BERRY HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3615 8637 3606 8673 3616 8685 3637 8664
TIME...MOT...LOC 0130Z 234DEG 28KT 3610 8682 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

WHITEHEAD

1 follow-up statement

486 
WWUS54 KOHX 240147
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
747 PM CST WED DEC 23 2015

TNC037-165-240157-
/O.CAN.KOHX.TO.W.0020.000000T0000Z-151224T0200Z/
DAVIDSON TN-SUMNER TN-
747 PM CST WED DEC 23 2015

...THE TORNADO WARNING FOR EASTERN DAVIDSON AND SOUTHWESTERN SUMNER
COUNTIES IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CST FOR CENTRAL
TENNESSEE.

LAT...LON 3622 8645 3622 8646 3619 8658 3624 8659
      3625 8659 3626 8657 3628 8656 3631 8656
TIME...MOT...LOC 0147Z 234DEG 28KT 3616 8671 

$$

TNC189-240200-
/O.CON.KOHX.TO.W.0020.000000T0000Z-151224T0200Z/
WILSON TN-
747 PM CST WED DEC 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR WEST
CENTRAL WILSON COUNTY...
    
AT 747 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR NASHVILLE...MOVING NORTHEAST AT 30 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  MOUNT JULIET AROUND 800 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3622 8645 3622 8646 3619 8658 3624 8659
      3625 8659 3626 8657 3628 8656 3631 8656
TIME...MOT...LOC 0147Z 234DEG 28KT 3616 8671 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

WHITEHEAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 23, 6:05 PM CST	Special Weather Statement	OHX	Houston, Humphreys	25 min
Dec 23, 6:07 PM CST	Tornado Warning	OHX	Humphreys	23 min
Dec 23, 6:13 PM CST	Tornado Warning	OHX	Hickman, Lewis, Perry	32 min
Dec 23, 6:30 PM CST	Severe Thunderstorm Warning	OHX	Dickson, Houston, Humphreys, Montgomery	30 min
Dec 23, 6:35 PM CST	Tornado Warning Tornado observedConsiderable damage threat	OHX	Hickman, Maury	25 min
Dec 23, 6:48 PM CST	Tornado Warning	OHX	Wayne	27 min
Dec 23, 6:50 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery, Robertson	25 min
Dec 23, 6:56 PM CST	Tornado Warning	OHX	Cheatham, Dickson, Montgomery, Robertson	34 min
Dec 23, 6:58 PM CST	Tornado Warning	OHX	Hickman, Williamson	32 min
Dec 23, 7:08 PM CST	Tornado Warning Tornado observedConsiderable damage threat	OHX	Lawrence, Lewis, Wayne	37 min
Dec 23, 7:08 PM CST	Tornado Warning	OHX	Cheatham, Davidson, Williamson	37 min
Dec 23, 7:12 PM CST	Tornado Warning	OHX	Wayne	33 min
Dec 23, 7:24 PM CST	Special Weather Statement	OHX	Robertson	36 min
Dec 23, 7:30 PM CST	Tornado Warning	OHX	Lawrence, Lewis, Maury	30 min
Dec 23, 7:33 PM CST	Tornado Warning	OHX	Lawrence, Wayne	27 min
Dec 23, 7:45 PM CST	Special Weather Statement	OHX	Sumner	45 min
Dec 23, 7:53 PM CST	Special Weather Statement	OHX	Cheatham, Dickson	37 min
Dec 23, 7:58 PM CST	Tornado Warning	OHX	Giles, Lawrence, Maury	32 min
Dec 23, 8:09 PM CST	Tornado Warning	OHX	Maury, Williamson	36 min
Dec 23, 8:12 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson	21 min
Dec 23, 8:17 PM CST	Tornado Warning	OHX	Cheatham, Davidson, Dickson	11 min
Dec 23, 8:24 PM CST	Tornado Warning	OHX	Marshall, Maury, Rutherford, Williamson	36 min
Dec 23, 8:33 PM CST	Special Weather Statement	OHX	Wayne	27 min
Dec 23, 8:44 PM CST	Severe Thunderstorm Warning	OHX	Lawrence, Lewis, Wayne	17 min
Dec 23, 8:50 PM CST	Tornado Warning	OHX	Rutherford	25 min
Dec 23, 9:11 PM CST	Special Weather Statement	OHX	Williamson	34 min
Dec 23, 9:15 PM CST	Flash Flood Warning	OHX	Lawrence, Lewis, Maury, Wayne	3 hr
Dec 23, 10:22 PM CST	Special Weather Statement	OHX	Jackson	23 min
Dec 23, 10:24 PM CST	Tornado Warning	OHX	DeKalb, Jackson, Putnam, Smith	36 min
Dec 23, 10:50 PM CST	Severe Thunderstorm Warning	OHX	Clay, Fentress, Overton, Pickett	25 min
Dec 23, 10:53 PM CST	Special Weather Statement	OHX	DeKalb, Putnam	37 min
Dec 23, 11:01 PM CST	Severe Thunderstorm Warning	OHX	DeKalb, Overton, Putnam, White	29 min
Dec 23, 11:13 PM CST	Severe Thunderstorm Warning	OHX	Fentress, Overton, Pickett	32 min
Dec 23, 11:25 PM CST	Special Weather Statement	OHX	Fentress	35 min

Nearby

Tornado Warnings in Tennessee, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.