Alert archive / Tennessee / Tornado Warnings in 2017

Tornado Warning 46, NWS Nashville, TN

November 18, 2017Cannon County, Rutherford County, Tennessee

NWS Nashville, TN issued this tornado warning at Nov 18, 2017, 5:30 PM CST for Cannon County, Rutherford County, Tennessee. It was in force for 15 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Nov 18, 2017, 5:30 PM CST (23:30 UTC)
Expired: Nov 18, 2017, 5:45 PM CST
In force: 15 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Cannon County, TN, Rutherford County, TN

The radar

The Nashville radar (KOHX), 58 km from the middle of the area, began a volume at 23:33 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.

What was reported inside it

Time	Report	Where	Remark
Nov 18, 5:49 PM CST	TSTM WND DMG	5 Nne Woodbury, TN	TREES DOWN ON WILMOUTH CREEK ROAD NEAR SUGAR TREE KNOB ROAD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Nov 18, 12:35 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 52 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: 858 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 559 m²/s²
0-3 km storm-relative helicity: 544 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

446 
WFUS54 KOHX 182330
TOROHX
TNC015-149-190000-
/O.NEW.KOHX.TO.W.0046.171118T2330Z-171119T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
530 PM CST SAT NOV 18 2017

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  East central Rutherford County in Middle Tennessee...
  Northern Cannon County in Middle Tennessee...

* Until 600 PM CST
    
* At 530 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Woodbury, moving east at 50 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...
  Woodbury around 535 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Readyville.

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 3579 8623 3590 8626 3596 8602 3582 8595
TIME...MOT...LOC 2330Z 254DEG 42KT 3586 8616 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Shamburger

2 follow-up statements

500 
WWUS54 KOHX 182337
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
537 PM CST SAT NOV 18 2017

TNC149-182346-
/O.CAN.KOHX.TO.W.0046.000000T0000Z-171119T0000Z/
Rutherford TN-
537 PM CST SAT NOV 18 2017

...THE TORNADO WARNING FOR EAST CENTRAL RUTHERFORD COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 700 PM CST for
Middle Tennessee.

LAT...LON 3596 8602 3582 8595 3584 8613 3593 8613
TIME...MOT...LOC 2336Z 251DEG 52KT 3589 8604 

$$

TNC015-190000-
/O.CON.KOHX.TO.W.0046.000000T0000Z-171119T0000Z/
Cannon TN-
537 PM CST SAT NOV 18 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR
NORTHEASTERN CANNON COUNTY...
    
At 536 PM CST, a severe thunderstorm capable of producing a tornado
was located just north of Woodbury, moving east at 60 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. 

Locations impacted include...
Woodbury.

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 3596 8602 3582 8595 3584 8613 3593 8613
TIME...MOT...LOC 2336Z 251DEG 52KT 3589 8604 

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

$$

Shamburger

360 
WWUS54 KOHX 182345
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
545 PM CST SAT NOV 18 2017

TNC015-182355-
/O.CAN.KOHX.TO.W.0046.000000T0000Z-171119T0000Z/
Cannon TN-
545 PM CST SAT NOV 18 2017

...THE TORNADO WARNING FOR NORTHEASTERN CANNON COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 700 PM CST for
Middle Tennessee.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Nashville.

LAT...LON 3596 8602 3582 8595 3584 8613 3593 8613
TIME...MOT...LOC 2342Z 254DEG 42KT 3592 8591 

$$

Shamburger

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 18, 2:57 PM CST	Special Weather Statement	OHX	Houston, Humphreys, Stewart	33 min
Nov 18, 3:07 PM CST	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	23 min
Nov 18, 3:14 PM CST	Severe Thunderstorm Warning	OHX	Houston, Humphreys	31 min
Nov 18, 3:24 PM CST	Tornado Warning	OHX	Houston, Humphreys	36 min
Nov 18, 3:30 PM CST	Severe Thunderstorm Warning	OHX	Dickson, Houston, Humphreys, Montgomery, Stewart	30 min
Nov 18, 3:37 PM CST	Special Weather Statement	OHX	Perry	38 min
Nov 18, 3:47 PM CST	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys, Lewis, Perry	28 min
Nov 18, 4:00 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Montgomery, Robertson and 1 more	30 min
Nov 18, 4:11 PM CST	Special Weather Statement	OHX	Giles, Hickman, Lawrence, Lewis, Maury, Wayne	49 min
Nov 18, 4:25 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Rutherford, Sumner, Williamson and 1 more	50 min
Nov 18, 4:53 PM CST	Tornado Warning	OHX	Davidson, Rutherford, Wilson	21 min
Nov 18, 5:07 PM CST	Tornado Warning	OHX	Macon, Smith, Trousdale	11 min
Nov 18, 5:09 PM CST	Severe Thunderstorm Warning	OHX	Cannon, Clay, DeKalb, Jackson, Macon, Rutherford and 3 more	36 min
Nov 18, 5:41 PM CST	Tornado Warning	OHX	Cannon, DeKalb	10 min
Nov 18, 5:44 PM CST	Severe Thunderstorm Warning	OHX	Clay, DeKalb, Jackson, Overton, Pickett, Putnam and 2 more	46 min

Nearby

Tornado Warnings in Tennessee, 2017 Every tornado warning in 2017 Tornadoes in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.