Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 27, NWS Nashville, TN

March 2, 2012Coffee County, Grundy County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 2, 2012, 3:42 PM CST for Coffee County, Grundy County, Tennessee. It was in force for 32 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 2, 2012, 3:42 PM CST (21:42 UTC)
Expired: Mar 2, 2012, 4:14 PM CST
In force: 32 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Coffee County, TN, Grundy County, TN

The radar

The Northeast Alabama radar (KHTX), 46 km from the middle of the area, began a volume at 21:45 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 2, 1:20 PM CST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.7 hours before the alert went out and 113 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: 1667 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 523 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

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

537 
WFUS54 KOHX 022142
TOROHX
TNC031-061-022230-
/O.NEW.KOHX.TO.W.0027.120302T2142Z-120302T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
342 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN COFFEE COUNTY IN MIDDLE TENNESSEE...
  WESTERN GRUNDY COUNTY IN MIDDLE TENNESSEE...

* UNTIL 430 PM CST

* AT 335 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES NORTHWEST OF SEWANEE...OR 8 MILES
  NORTHEAST OF WINCHESTER...AND MOVING EAST AT 55 MPH. THIS STORM IS TRAILING
  ANOTHER STORM THAT IS CURRENTLY MOVING THROUGH SOUTHERN GRUNDY COUNTY AND
  DOPPLER RADAR ALSO INDICATES A POSSIBLE TORNADO IN THAT STORM AS WELL.
  IF YOU LIVE IN SOUTHERN GRUNDY COUNTY TAKE COVER NOW.

* LOCATIONS IMPACTED INCLUDE...
  TRACY CITY AND COALMONT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3527 8591 3529 8594 3531 8600 3533 8603
      3534 8603 3547 8576 3530 8563 3528 8570
      3527 8570 3523 8588
TIME...MOT...LOC 2141Z 250DEG 47KT 3528 8590

$$

BOYD

1 follow-up statement

292 
WWUS54 KOHX 022214
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
414 PM CST FRI MAR 2 2012

TNC031-061-022224-
/O.CAN.KOHX.TO.W.0027.000000T0000Z-120302T2230Z/
COFFEE TN-GRUNDY TN-
414 PM CST FRI MAR 2 2012

...THE TORNADO WARNING FOR WESTERN GRUNDY AND SOUTHEASTERN COFFEE
COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3527 8591 3529 8594 3531 8600 3533 8603
      3534 8603 3547 8576 3530 8563 3528 8570
      3527 8570 3523 8588
TIME...MOT...LOC 2214Z 250DEG 47KT 3542 8540

$$

04

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 4:00 AM CST	Wind Advisory	OHX	Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 33 more	17 hr
Mar 2, 5:05 AM CST	Severe Thunderstorm Warning	OHX	Benton, Humphreys	25 min
Mar 2, 5:42 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Robertson	18 min
Mar 2, 6:00 AM CST	Special Weather Statement	OHX	Davidson	15 min
Mar 2, 6:33 AM CST	Special Weather Statement	OHX	Trousdale	12 min
Mar 2, 6:37 AM CST	Severe Thunderstorm Warning	OHX	Macon, Trousdale	23 min
Mar 2, 6:59 AM CST	Special Weather Statement	OHX	Clay, Macon	16 min
Mar 2, 8:25 AM CST	Special Weather Statement	OHX	Rutherford	20 min
Mar 2, 9:00 AM CST	Special Weather Statement	OHX	Giles	30 min
Mar 2, 9:05 AM CST	Severe Thunderstorm Warning	OHX	DeKalb, Jackson, Putnam, Smith, Wilson	10 min
Mar 2, 9:27 AM CST	Tornado Warning	OHX	DeKalb, Overton, Putnam, White	33 min
Mar 2, 9:51 AM CST	Tornado Warning	OHX	Coffee, Grundy, Warren	24 min
Mar 2, 9:58 AM CST	Tornado Warning	OHX	Fentress, Overton, Putnam	32 min
Mar 2, 10:12 AM CST	Tornado Warning	OHX	Coffee, Grundy, Van Buren, Warren	33 min
Mar 2, 11:12 AM CST	Flash Flood Watch	OHX	Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 33 more	10 hr
Mar 2, 1:36 PM CST	Special Weather Statement	OHX	Bedford, Cannon, Clay, Coffee, Cumberland, DeKalb and 12 more	54 min
Mar 2, 1:51 PM CST	Severe Thunderstorm Warning	OHX	Giles	24 min
Mar 2, 2:03 PM CST	Tornado Warning	OHX	Giles	27 min
Mar 2, 2:27 PM CST	Tornado Warning	OHX	Grundy	33 min
Mar 2, 2:29 PM CST	Severe Thunderstorm Warning	OHX	Giles	20 min
Mar 2, 2:34 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Coffee	26 min
Mar 2, 2:46 PM CST	Severe Thunderstorm Warning	OHX	Benton, Dickson, Humphreys	44 min
Mar 2, 2:52 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford, Warren	38 min
Mar 2, 3:01 PM CST	Tornado Warning	OHX	Benton, Dickson, Hickman, Humphreys	44 min
Mar 2, 3:22 PM CST	Tornado Warning	OHX	Grundy	23 min
Mar 2, 3:33 PM CST	Tornado Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Williamson	42 min
Mar 2, 3:36 PM CST	Tornado Warning	OHX	Grundy	39 min
Mar 2, 3:38 PM CST	Severe Thunderstorm Warning	OHX	Benton, Hickman, Humphreys, Perry	37 min
Mar 2, 3:47 PM CST	Tornado Warning	OHX	Dickson, Hickman, Humphreys, Williamson	28 min
Mar 2, 3:58 PM CST	Tornado Warning	OHX	Wayne	32 min
Mar 2, 4:10 PM CST	Tornado Warning	OHX	Davidson, Rutherford, Williamson, Wilson	50 min
Mar 2, 4:18 PM CST	Tornado Warning	OHX	Lawrence, Wayne	27 min
Mar 2, 4:24 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Macon, Robertson, Sumner, Trousdale and 1 more	51 min
Mar 2, 4:40 PM CST	Tornado Warning	OHX	Giles, Lawrence, Wayne	35 min
Mar 2, 4:43 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Robertson, Williamson	32 min
Mar 2, 4:43 PM CST	Tornado Warning	OHX	DeKalb, Jackson, Putnam, Smith, Trousdale, Wilson	32 min
Mar 2, 4:57 PM CST	Tornado Warning	OHX	Maury	33 min
Mar 2, 5:02 PM CST	Tornado Warning	OHX	Giles, Lawrence, Marshall, Maury	28 min
Mar 2, 5:13 PM CST	Tornado Warning	OHX	Clay, Fentress, Jackson, Overton, Pickett, Putnam and 1 more	47 min
Mar 2, 5:23 PM CST	Tornado Warning	OHX	Marshall, Maury, Williamson	21 min
Mar 2, 5:26 PM CST	Severe Thunderstorm Warning	OHX	Lawrence, Lewis, Perry, Wayne	34 min
Mar 2, 5:28 PM CST	Tornado Warning	OHX	Bedford, Marshall, Maury	23 min
Mar 2, 5:40 PM CST	Severe Thunderstorm Warning	OHX	Clay, Fentress, Jackson, Overton, Pickett	50 min
Mar 2, 5:41 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Rutherford	34 min
Mar 2, 5:44 PM CST	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall, Maury	46 min
Mar 2, 5:47 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Rutherford	28 min
Mar 2, 5:54 PM CST	Tornado Warning Emergency	OHX	Fentress, Overton, Pickett	36 min
Mar 2, 5:59 PM CST	Tornado Warning	OHX	Giles, Lawrence, Marshall, Maury	31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.