Alert archive / Tennessee / Tornado Warnings in 2016

Tornado Warning 12, NWS Nashville, TN

March 31, 2016Giles County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 31, 2016, 7:08 PM CDT for Giles County, Tennessee. It was in force for 22 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 31, 2016, 7:08 PM CDT (00:08 UTC)
Expired: Mar 31, 2016, 7:30 PM CDT
In force: 22 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Giles County, TN

The radar

The Northeast Alabama radar (KHTX), 83 km from the middle of the area, began a volume at 00:09 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 31, 3:59 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 31, 5:58 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.1 hours before the alert went out and 123 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: 217 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 488 m²/s²
0-3 km storm-relative helicity: 602 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

570 
WFUS54 KOHX 010008
TOROHX
TNC055-010030-
/O.NEW.KOHX.TO.W.0012.160401T0008Z-160401T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
708 PM CDT THU MAR 31 2016

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GILES COUNTY IN MIDDLE TENNESSEE...

* UNTIL 730 PM CDT
    
* AT 707 PM CDT...SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO
  WERE LOCATED ALONG A LINE EXTENDING FROM NEAR FAYETTEVILLE TO 7
  MILES NORTHWEST OF HAZEL GREEN...MOVING EAST AT 60 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  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. 

* THESE TORNADIC STORMS WILL IMPACT SOUTHEASTERN GILES
  COUNTY...INCLUDING THE FOLLOWING LOCATIONS:
  ELKTON...PROSPECT...FRANKEWING AND ARDMORE.

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 3500 8721 3512 8694 3522 8683 3509 8683
      3499 8684
TIME...MOT...LOC 0007Z 269DEG 52KT 3522 8657 3502 8664 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 7:05 PM CDT	Special Weather Statement	OHX	Jackson, Putnam	40 min
Mar 31, 7:16 PM CDT	Special Weather Statement	OHX	Clay, Jackson, Overton, Putnam	44 min
Mar 31, 7:22 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	23 min
Mar 31, 7:25 PM CDT	Tornado Warning	OHX	Giles	35 min
Mar 31, 7:37 PM CDT	Special Weather Statement	OHX	Fentress, Overton	38 min
Mar 31, 7:44 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence	31 min
Mar 31, 7:46 PM CDT	Tornado Warning	OHX	Giles, Lawrence	29 min
Mar 31, 8:12 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence	33 min
Mar 31, 8:28 PM CDT	Flash Flood Warning	OHX	Giles, Lawrence, Wayne	3 hr
Mar 31, 8:48 PM CDT	Special Weather Statement	OHX	Giles	27 min
Mar 31, 9:05 PM CDT	Severe Thunderstorm Warning	OHX	Grundy	25 min
Mar 31, 10:02 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson, Dickson, Williamson, Wilson	43 min
Mar 31, 11:48 PM CDT	River Flood Advisory	OHX	Lawrence	17 hr
Apr 1, 4:00 AM CDT	River Flood Advisory	OHX	Grundy	7 hr

Nearby

Tornado Warnings in Tennessee, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.