Alert archive / Tennessee / Tornado Warnings in 2017

Tornado Warning 3, NWS Nashville, TN

March 1, 2017Smith County, Wilson County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 1, 2017, 7:28 AM CST for Smith County, Wilson County, Tennessee. It was in force for 32 min. 5 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: Mar 1, 2017, 7:28 AM CST (13:28 UTC)
Expired: Mar 1, 2017, 8:00 AM CST
In force: 32 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Smith County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 47 km from the middle of the area, began a volume at 13:28 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
Mar 1, 7:30 AM CST	TSTM WND DMG	7 N Walterhill, TN	TREES BLOWN DOWN AT FARM ON VESTA ROAD JUST EAST OF MOCCASIN LANE
Mar 1, 7:38 AM CST	TORNADO	3 Wsw Watertown, TN	A HIGH END EF1 TORNADO TOUCHED DOWN JUST WEST OF WATERTOWN AND CONTINUED ENE ACROSS THE NORTHERN FRINGES OF TOWN. ONE HOME SUFFERED SIGNIFICANT DAMAGE ON COMMERCE ROAD...BUT THE GARAGE WAS NOT APPROPRIATELY ATTACHED TO THE FOUNDATION. TWO TVA WOODEN HIGH TRANS
Mar 1, 7:42 AM CST	TSTM WND DMG	2 Ne Watertown, TN	LOCAL FIRE DEPARTMENT REPORTED STORM DAMAGE ON THE 1800 BLOCK HOLMES GAP ROAD. TIME ESTIMATED BY RADAR.
Mar 1, 7:44 AM CST	TSTM WND DMG	1 Se Watertown, TN	A LARGE SWATH OF 75-80 MPH STRAIGHT LINE WINDS WAS OBSERVED SOUTH OF THE TORNADO TRACK IN WATERTOWN...MAINLY ALONG AND SOUTH OF HIGHWAY 70. THESE WINDS WERE BELIEVED TO BE FROM THE REAR FLANK DOWNDRAFT ASSOCIATED WITH THE TORNADIC STORM. SEVERAL TREES WERE SNA
Mar 1, 7:51 AM CST	TORNADO	4 Ne Alexandria, TN	AN EF1 TORNADO TOUCHED DOWN SW OF HICKMAN JUST N OF POTTER RD. A 1930S ERA HOME BEING USED AS A STORAGE BUILDING WAS COMPLETELY DESTROYED WEST OF KYLE HOLLOW LN WITH CONTENTS BLOWN UP TO 150 YARDS AWAY. TWO HOMES ON JENKINS HILL RD SUFFERED MINOR DAMAGE AND A

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
Mar 1, 4:57 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 1.5 hours before the alert went out and 49 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: 694 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 842 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 361 m²/s²
0-3 km storm-relative helicity: 344 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 9.1

Open this sounding in Storm Lab

The text

As transmitted.

419 
WFUS54 KOHX 011328
TOROHX
TNC159-189-011400-
/O.NEW.KOHX.TO.W.0003.170301T1328Z-170301T1400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
728 AM CST WED MAR 1 2017

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Southwestern Smith County in Middle Tennessee...
  Central Wilson County in Middle Tennessee...

* Until 800 AM CST
    
* At 727 AM CST, a severe thunderstorm capable of producing a tornado
  was located near Rural Hill, or 9 miles southwest of Lebanon,
  moving east at 65 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...
  Watertown around 740 AM CST. 
  Gordonsville around 755 AM CST. 

Other locations impacted by this tornadic thunderstorm include Cedars
Of Lebanon State Park, Tuckers Crossroads, Hickman, Gladeville and
Alexandria.

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 3611 8585 3609 8587 3612 8591 3611 8592
      3610 8591 3611 8596 3609 8599 3608 8601
      3609 8601 3608 8603 3609 8606 3606 8606
      3602 8637 3604 8639 3610 8651 3630 8614
      3629 8613 3631 8612 3633 8608
TIME...MOT...LOC 1327Z 254DEG 55KT 3609 8640 

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

$$

Whitehead

1 follow-up statement

679 
WWUS54 KOHX 011339
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
739 AM CST WED MAR 1 2017

TNC159-189-011400-
/O.CON.KOHX.TO.W.0003.000000T0000Z-170301T1400Z/
Smith TN-Wilson TN-
739 AM CST WED MAR 1 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 AM CST FOR
SOUTHWESTERN SMITH AND EASTERN WILSON COUNTIES...
    
At 738 AM CST, a severe thunderstorm capable of producing a tornado
was located near Watertown, or 9 miles southeast of Lebanon, moving
east at 65 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...
  Gordonsville around 750 AM CST. 

Other locations impacted by this tornadic thunderstorm include
Tuckers Crossroads, Hickman and Alexandria.

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 3611 8585 3609 8587 3612 8591 3611 8592
      3610 8591 3611 8596 3609 8599 3608 8601
      3609 8601 3608 8603 3609 8606 3606 8606
      3603 8626 3612 8626 3622 8623 3630 8614
      3629 8613 3631 8612 3633 8608
TIME...MOT...LOC 1338Z 254DEG 55KT 3614 8618 

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
Feb 28, 11:02 PM CST	Tornado Warning	OHX	Stewart	23 min
Mar 1, 5:27 AM CST	Special Weather Statement	OHX	Hickman, Houston, Humphreys, Montgomery, Stewart	48 min
Mar 1, 5:54 AM CST	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Houston, Humphreys, Montgomery, Perry and 1 more	36 min
Mar 1, 6:04 AM CST	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Perry	41 min
Mar 1, 6:24 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Houston, Humphreys and 3 more	36 min
Mar 1, 6:26 AM CST	Severe Thunderstorm Warning	OHX	Montgomery, Robertson	34 min
Mar 1, 6:55 AM CST	Severe Thunderstorm Warning	OHX	Davidson, Robertson, Rutherford, Sumner, Trousdale, Williamson and 1 more	35 min
Mar 1, 7:03 AM CST	Tornado Warning	OHX	Davidson, Rutherford, Williamson, Wilson	27 min
Mar 1, 7:26 AM CST	Severe Thunderstorm Warning	OHX	Cannon, Clay, DeKalb, Jackson, Macon, Rutherford and 4 more	34 min
Mar 1, 7:49 AM CST	Tornado Warning	OHX	Clay, Macon	26 min
Mar 1, 7:52 AM CST	Tornado Warning	OHX	DeKalb, Putnam, Smith	23 min
Mar 1, 7:58 AM CST	Severe Thunderstorm Warning	OHX	Cannon, Clay, DeKalb, Jackson, Macon, Overton and 5 more	32 min
Mar 1, 8:12 AM CST	Tornado Warning	OHX	Jackson, Overton, Putnam	33 min
Mar 1, 8:17 AM CST	Special Weather Statement	OHX	Lewis	28 min
Mar 1, 8:20 AM CST	Severe Thunderstorm Warning	OHX	Clay, Cumberland, DeKalb, Fentress, Jackson, Overton and 3 more	25 min
Mar 1, 8:43 AM CST	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Pickett, Putnam, White	36 min
Mar 1, 8:45 AM CST	Special Weather Statement	OHX	Lewis	45 min
Mar 1, 9:42 AM CST	Special Weather Statement	OHX	Hickman, Lewis	33 min
Mar 1, 9:46 AM CST	Special Weather Statement	OHX	Cannon, Rutherford	44 min
Mar 1, 9:57 AM CST	Areal Flood Advisory	OHX	Lewis, Perry, Wayne	2 hr
Mar 1, 10:18 AM CST	Special Weather Statement	OHX	Cannon, White	42 min
Mar 1, 10:18 AM CST	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	42 min
Mar 1, 10:22 AM CST	Special Weather Statement	OHX	Marshall	38 min
Mar 1, 10:35 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	25 min
Mar 1, 10:59 AM CST	Special Weather Statement	OHX	Marshall	46 min
Mar 1, 11:03 AM CST	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	27 min
Mar 1, 11:27 AM CST	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall, Wayne	48 min
Mar 1, 11:43 AM CST	Special Weather Statement	OHX	Bedford, Coffee	47 min
Mar 1, 12:13 PM CST	Severe Thunderstorm Warning	OHX	Giles	21 min
Mar 1, 12:18 PM CST	Special Weather Statement	OHX	Cumberland	27 min
Mar 1, 12:42 PM CST	Special Weather Statement	OHX	Grundy	33 min
Mar 1, 12:46 PM CST	Severe Thunderstorm Warning	OHX	Coffee, Grundy	29 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.