Alert archive / Tennessee / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 9, NWS Nashville, TN

March 31, 20164 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 31, 2016, 6:44 PM CDT for 4 counties in Tennessee. It was in force for 31 min. 1 report 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 31, 2016, 6:44 PM CDT (23:44 UTC)
Expired: Mar 31, 2016, 7:15 PM CDT
In force: 31 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cannon County, TN, DeKalb County, TN, Warren County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 68 km from the middle of the area, began a volume at 23:46 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 31, 6:57 PM CDT	HAIL 1	Smithville, TN

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 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 12:00Z, 11.7 hours before the alert went out and 67 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: 834 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 673 m²/s²
0-3 km storm-relative helicity: 836 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

931 
WUUS54 KOHX 312344
SVROHX
TNC015-041-177-189-010015-
/O.NEW.KOHX.SV.W.0009.160331T2344Z-160401T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
644 PM CDT THU MAR 31 2016

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN WARREN COUNTY IN MIDDLE TENNESSEE...
  NORTHERN CANNON COUNTY IN MIDDLE TENNESSEE...
  DE KALB COUNTY IN MIDDLE TENNESSEE...
  SOUTHEASTERN WILSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 715 PM CDT

* AT 643 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES WEST OF
  SMITHVILLE...MOVING EAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  SMITHVILLE...WOODBURY...ALEXANDRIA...DOWELLTOWN...LIBERTY...AUBURNTOWN
  AND EDGAR EVANS STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR CENTRAL
TENNESSEE.

LAT...LON 3608 8578 3607 8575 3573 8580 3580 8618
      3607 8610 3609 8577
TIME...MOT...LOC 2343Z 269DEG 43KT 3596 8597 

HAIL...1.00IN
WIND...60MPH
 
$$

07

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 1:06 PM CDT	Special Weather Statement	OHX	Houston, Montgomery, Stewart	54 min
Mar 31, 3:02 PM CDT	Special Weather Statement	OHX	Stewart	43 min
Mar 31, 3:47 PM CDT	Special Weather Statement	OHX	Humphreys	28 min
Mar 31, 3:49 PM CDT	Tornado Warning	OHX	Perry, Wayne	26 min
Mar 31, 4:06 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Houston, Humphreys, Perry	39 min
Mar 31, 4:14 PM CDT	Tornado Warning	OHX	Hickman, Lewis, Perry	46 min
Mar 31, 4:37 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Montgomery, Robertson	23 min
Mar 31, 4:48 PM CDT	Tornado Warning	OHX	Hickman, Lewis, Maury	42 min
Mar 31, 4:49 PM CDT	Severe Thunderstorm Warning	OHX	Lewis, Wayne	26 min
Mar 31, 5:01 PM CDT	Special Weather Statement	OHX	Robertson, Sumner	29 min
Mar 31, 5:14 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Lewis, Wayne	46 min
Mar 31, 5:18 PM CDT	Tornado Warning	OHX	Maury	27 min
Mar 31, 5:24 PM CDT	Special Weather Statement	OHX	Macon, Sumner, Trousdale	36 min
Mar 31, 5:42 PM CDT	Tornado Warning	OHX	Marshall, Maury	29 min
Mar 31, 5:44 PM CDT	Tornado Warning	OHX	Giles, Lawrence	31 min
Mar 31, 5:56 PM CDT	Special Weather Statement	OHX	Sumner	49 min
Mar 31, 6:06 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Rutherford	39 min
Mar 31, 6:14 PM CDT	Tornado Warning	OHX	Giles, Lawrence	31 min
Mar 31, 6:32 PM CDT	Special Weather Statement	OHX	Cannon	43 min
Mar 31, 6:47 PM CDT	Tornado Warning	OHX	Giles, Marshall	28 min
Mar 31, 6:53 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Sumner, Trousdale, Wilson	22 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2016 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.