Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 48, NWS Nashville, TN

March 31, 2012Giles County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 31, 2012, 3:56 PM CDT for Giles County, Tennessee. It was in force for 19 min. 4 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 31, 2012, 3:56 PM CDT (20:56 UTC)
Expired: Mar 31, 2012, 4:15 PM CDT
In force: 19 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

County Giles County, TN

The radar

The Northeast Alabama radar (KHTX), 101 km from the middle of the area, began a volume at 20:59 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, 3:58 PM CDT	HAIL 1.75	8 S Pulaski, TN
Mar 31, 4:08 PM CDT	HAIL 1.5	Minor Hill, TN	1.4 INCH HAIL REPORTED IN MINOR HILL
Mar 31, 4:10 PM CDT	TSTM WND DMG	Minor Hill, TN	WIND DAMAGE TO CARPORTS AND SOME ROOF DAMAGE IN MINOR HILL.
Mar 31, 4:11 PM CDT	HAIL 2.75	8 S Pulaski, 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, 12:47 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.9 hours before the alert went out and 125 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: 1321 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 509 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

328 
WFUS54 KOHX 312056
TOROHX
TNC055-312115-
/O.NEW.KOHX.TO.W.0048.120331T2056Z-120331T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
356 PM CDT SAT MAR 31 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

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

* UNTIL 415 PM CDT

* AT 354 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 8 MILES SOUTHWEST OF PULASKI...AND MOVING SOUTH
  AT 20 MPH.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF SOUTHWESTERN
  GILES COUNTY...INCLUDING THE FOLLOWING LOCATIONS MINOR HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 3499 8721 3509 8722 3512 8721 3513 8720
      3515 8721 3516 8720 3517 8722 3522 8707
      3499 8694
TIME...MOT...LOC 2056Z 339DEG 18KT 3510 8713

$$

ROSE

1 follow-up statement

784 
WWUS54 KOHX 312108
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
408 PM CDT SAT MAR 31 2012

TNC055-312115-
/O.CON.KOHX.TO.W.0048.000000T0000Z-120331T2115Z/
GILES TN-
408 PM CDT SAT MAR 31 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN GILES COUNTY
UNTIL 415 PM CDT...

AT 408 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 9 MILES SOUTHWEST OF PULASKI...MOVING SOUTHEAST AT 
ONLY 5 TO 10 MPH.

LOCATIONS IMPACTED INCLUDE...
  MINOR HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 3509 8722 3510 8721 3512 8721 3513 8720
      3515 8721 3516 8720 3510 8707 3500 8702
      3499 8721
TIME...MOT...LOC 2107Z 334DEG 6KT 3509 8715

$$
31

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 1:04 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford	26 min
Mar 31, 1:15 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Williamson	45 min
Mar 31, 1:25 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford	35 min
Mar 31, 1:55 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Coffee, Marshall, Maury, Rutherford	35 min
Mar 31, 2:01 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall, Maury	29 min
Mar 31, 2:08 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, White	17 min
Mar 31, 2:27 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall, Maury	33 min
Mar 31, 2:29 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Coffee	16 min
Mar 31, 2:35 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury	25 min
Mar 31, 2:43 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, White	17 min
Mar 31, 2:57 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Maury	48 min
Mar 31, 3:18 PM CDT	Flash Flood Warning	OHX	Giles	3 hr
Mar 31, 3:25 PM CDT	Special Weather Statement	OHX	Perry	35 min
Mar 31, 3:31 PM CDT	Severe Thunderstorm Warning	OHX	Perry, Wayne	29 min
Mar 31, 3:41 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence	49 min
Mar 31, 3:58 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	32 min
Mar 31, 4:14 PM CDT	Tornado Warning	OHX	Giles	18 min
Mar 31, 4:23 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury	37 min
Mar 31, 4:28 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence	32 min
Mar 31, 4:35 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	25 min
Mar 31, 4:58 PM CDT	Severe Thunderstorm Warning	OHX	Marshall	32 min
Mar 31, 5:01 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	29 min
Mar 31, 5:12 PM CDT	Severe Thunderstorm Warning	OHX	Marshall	20 min
Mar 31, 5:19 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	26 min
Mar 31, 5:46 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	14 min

Nearby

Tornado Warnings in Tennessee, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.