Alert archive / Tennessee / Tornado Warnings in 2019

Tornado Warning 7, NWS Nashville, TN

March 30, 2019Sumner County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 30, 2019, 6:32 PM CDT for Sumner County, Tennessee. It was in force for 16 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: Mar 30, 2019, 6:32 PM CDT (23:32 UTC)
Expired: Mar 30, 2019, 6:48 PM CDT
In force: 16 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Sumner County, TN

The radar

The Nashville radar (KOHX), 44 km from the middle of the area, began a volume at 23:36 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 58 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: 1525 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

286 
WFUS54 KOHX 302332
TOROHX
TNC165-310000-
/O.NEW.KOHX.TO.W.0007.190330T2332Z-190331T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
632 PM CDT Sat Mar 30 2019

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Northeastern Sumner County in Middle Tennessee...

* Until 700 PM CDT.
    
* At 631 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Portland, or 18 miles north of Gallatin, moving
  east at 55 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
  northeastern Sumner County, including the following locations...
  Mitchellville.

This includes Interstate 65 near mile marker 119.
 
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 3664 8623 3660 8625 3659 8659 3660 8659
      3664 8655 3665 8651 3665 8635
TIME...MOT...LOC 2331Z 256DEG 48KT 3664 8655 

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

$$

Schaper/Herron

1 follow-up statement

578 
WWUS54 KOHX 302348
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
648 PM CDT Sat Mar 30 2019

TNC165-302357-
/O.CAN.KOHX.TO.W.0007.000000T0000Z-190331T0000Z/
Sumner TN-
648 PM CDT Sat Mar 30 2019

...THE TORNADO WARNING FOR NORTHEASTERN SUMNER COUNTY IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has 
been cancelled. However, damaging winds remain possible and a
Severe Thunderstorm Warning remains in effect for the area.

LAT...LON 3664 8623 3660 8625 3659 8659 3660 8659
      3664 8655 3665 8651 3665 8635
TIME...MOT...LOC 2344Z 256DEG 48KT 3678 8627 

$$

Schaper/Herron

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 3:54 AM CDT	Freeze Watch	OHX	Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more	23 hr
Mar 30, 5:23 PM CDT	Special Weather Statement	OHX	Dickson, Hickman, Perry	52 min
Mar 30, 6:02 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson, Dickson, Robertson, Sumner	43 min
Mar 30, 6:04 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury, Williamson	41 min
Mar 30, 6:08 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Robertson, Sumner	37 min
Mar 30, 6:14 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner, Williamson	31 min
Mar 30, 6:18 PM CDT	Tornado Warning	OHX	Robertson	27 min
Mar 30, 6:32 PM CDT	Tornado Warning	OHX	Maury, Williamson	28 min
Mar 30, 6:46 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Macon, Sumner, Trousdale, Wilson	44 min
Mar 30, 6:54 PM CDT	Tornado Warning	OHX	Rutherford, Williamson	21 min

Nearby

Tornado Warnings in Tennessee, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.