Alert archive / Tennessee / Tornado Warnings in 2019

Tornado Warning 9, NWS Nashville, TN

March 30, 2019Rutherford County, Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 30, 2019, 6:54 PM CDT for Rutherford County, Williamson County, Tennessee. It was in force for 21 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, 6:54 PM CDT (23:54 UTC)
Expired: Mar 30, 2019, 7:15 PM CDT
In force: 21 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Rutherford County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 56 km from the middle of the area, began a volume at 23:54 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, 11.9 hours before the alert went out and 42 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.

761 
WFUS54 KOHX 302354
TOROHX
TNC149-187-310015-
/O.NEW.KOHX.TO.W.0009.190330T2354Z-190331T0015Z/

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

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Southwestern Rutherford County in Middle Tennessee...
  Southeastern Williamson County in Middle Tennessee...

* Until 715 PM CDT.
    
* At 654 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Spring Hill, or 13 miles south of Franklin, 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
  southwestern Rutherford and southeastern Williamson Counties,
  including the following locations... Eagleville and Rockvale.

This includes the following highways...
 Interstate 65 between mile markers 55 and 56.
 Interstate 840 between mile markers 34 and 37, and between mile
markers 41 and 49.

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 3571 8678 3574 8686 3579 8687 3589 8654
      3573 8650
TIME...MOT...LOC 2354Z 260DEG 41KT 3574 8681 

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

$$

13

1 follow-up statement

589 
WWUS54 KOHX 310011
SVSOHX

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

TNC149-187-310020-
/O.EXP.KOHX.TO.W.0009.000000T0000Z-190331T0015Z/
Rutherford TN-Williamson TN-
711 PM CDT Sat Mar 30 2019

...THE TORNADO WARNING FOR SOUTHWESTERN RUTHERFORD AND SOUTHEASTERN
WILLIAMSON COUNTIES WILL EXPIRE AT 715 PM CDT...
                
The storm which prompted the warning has weakened and no longer 
appears capable of producing a tornado. Therefore, the tornado 
warning will be allowed to expire.  However gusty winds are still 
possible with this thunderstorm.

LAT...LON 3571 8678 3574 8686 3579 8687 3589 8654
      3573 8650
TIME...MOT...LOC 0010Z 260DEG 41KT 3577 8660 

$$

13

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	Sumner	16 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

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.