Alert archive / Tennessee / Tornado Warnings in 2017

Tornado Warning 43, NWS Nashville, TN

November 18, 2017Houston County, Humphreys County, Tennessee

NWS Nashville, TN issued this tornado warning at Nov 18, 2017, 3:24 PM CST for Houston County, Humphreys County, Tennessee. It was in force for 36 min. 2 reports 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, 3:24 PM CST (21:24 UTC)
Expired: Nov 18, 2017, 4:00 PM CST
In force: 36 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Houston County, TN, Humphreys County, TN

What was reported inside it

Time	Report	Where	Remark
Nov 18, 3:33 PM CST	TSTM WND DMG	3 N Mcewen, TN	TREES DOWN ON HIGHWAY 231.
Nov 18, 3:34 PM CST	TSTM WND DMG	4 Nnw Mcewen, TN	ROOF BLOWN OFF A TRAILER HOME AND SEVERAL TREES BLOWN DOWN NEAR HIGHWAY 231 AT MILE MARKER 5

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, 9.4 hours before the alert went out and 115 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.

666 
WFUS54 KOHX 182124
TOROHX
TNC083-085-182200-
/O.NEW.KOHX.TO.W.0043.171118T2124Z-171118T2200Z/

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

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Central Houston County in Middle Tennessee...
  Northeastern Humphreys County in Middle Tennessee...

* Until 400 PM CST
    
* At 323 PM CST, a severe thunderstorm capable of producing a tornado
  was located 7 miles southwest of Tennessee Ridge, or 9 miles north
  of Waverly, 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. 

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 3625 8795 3626 8794 3628 8795 3631 8758
      3613 8757 3616 8792 3617 8792 3618 8793
      3621 8794 3622 8795
TIME...MOT...LOC 2123Z 266DEG 44KT 3622 8783 

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

$$

Shamburger

2 follow-up statements

501 
WWUS54 KOHX 182133
SVSOHX

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

TNC083-085-182200-
/O.CON.KOHX.TO.W.0043.000000T0000Z-171118T2200Z/
Houston TN-Humphreys TN-
333 PM CST SAT NOV 18 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CST FOR CENTRAL
HOUSTON AND NORTHEASTERN HUMPHREYS COUNTIES...
    
At 332 PM CST, a severe thunderstorm capable of producing a tornado
was located around 5 miles south of Erin, 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 tornadic thunderstorm will remain over mainly rural areas of
central Houston and northeastern Humphreys Counties.

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 3631 8758 3613 8757 3615 8783 3629 8784
TIME...MOT...LOC 2132Z 264DEG 42KT 3623 8771 

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

$$

Shamburger

916 
WWUS54 KOHX 182150
SVSOHX

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

TNC083-085-182200-
/O.EXP.KOHX.TO.W.0043.000000T0000Z-171118T2200Z/
Houston TN-Humphreys TN-
350 PM CST SAT NOV 18 2017

...THE TORNADO WARNING FOR CENTRAL HOUSTON AND NORTHEASTERN HUMPHREYS
COUNTIES WILL EXPIRE AT 400 PM CST...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

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

LAT...LON 3631 8758 3613 8757 3615 8783 3629 8784
TIME...MOT...LOC 2150Z 266DEG 44KT 3624 8745 

$$

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, 3:30 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, 5:30 PM CST	Tornado Warning	OHX	Cannon, Rutherford	15 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.