Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 36, NWS Nashville, TN

March 2, 20127 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 2, 2012, 4:24 PM CST for 7 counties in Tennessee. It was in force for 51 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, 4:24 PM CST (22:24 UTC)
Expired: Mar 2, 2012, 5:15 PM CST
In force: 51 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Cheatham County, TN, Davidson County, TN, Macon County, TN, Robertson County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 30 km from the middle of the area, began a volume at 22:25 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, 10.4 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: 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.

968 
WUUS54 KOHX 022224
SVROHX
TNC021-037-111-147-165-169-189-022315-
/O.NEW.KOHX.SV.W.0036.120302T2224Z-120302T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
424 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ROBERTSON COUNTY IN MIDDLE TENNESSEE...
  SUMNER COUNTY IN MIDDLE TENNESSEE...
  TROUSDALE COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN WILSON COUNTY IN MIDDLE TENNESSEE...
  NORTHEASTERN CHEATHAM COUNTY IN MIDDLE TENNESSEE...
  NORTHERN DAVIDSON COUNTY IN MIDDLE TENNESSEE...
  WESTERN MACON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 515 PM CST

* AT 420 PM CST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS NEAR ASHLAND
  CITY...MOVING EAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RIDGETOP...
  MILLERSVILLE...
  WHITE HOUSE...
  GALLATIN...
  WESTMORELAND...
  HARTSVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2. DO NOT
STAY OUTDOORS IF YOU ARE IN THE PATH OF SEVERE THUNDERSTORMS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM FRIDAY EVENING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3664 8609 3640 8598 3637 8606 3630 8614
      3634 8619 3621 8694 3641 8703 3665 8648
TIME...MOT...LOC 2224Z 258DEG 47KT 3634 8689

$$

SHAMBURGER

1 follow-up statement

204 
WWUS54 KOHX 022249
SVSOHX

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

TNC021-037-147-189-022259-
/O.CAN.KOHX.SV.W.0036.000000T0000Z-120302T2315Z/
ROBERTSON TN-WILSON TN-CHEATHAM TN-DAVIDSON TN-
449 PM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DAVIDSON...
NORTHEASTERN CHEATHAM...NORTHWESTERN WILSON AND SOUTHEASTERN
ROBERTSON COUNTIES IS CANCELLED...

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

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT 
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE 
IN NASHVILLE.

LAT...LON 3664 8609 3640 8598 3637 8606 3630 8614
      3635 8621 3633 8627 3635 8628 3633 8630
      3632 8633 3636 8636 3635 8638 3649 8664
      3654 8664 3660 8659 3665 8648
TIME...MOT...LOC 2249Z 256DEG 61KT 3648 8606

$$

TNC111-165-169-022315-
/O.CON.KOHX.SV.W.0036.000000T0000Z-120302T2315Z/
SUMNER TN-TROUSDALE TN-MACON TN-
449 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
MACON...TROUSDALE AND SUMNER COUNTIES UNTIL 515 PM CST...

AT 443 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
HARTSVILLE...MOVING EAST AT 70 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT LAFAYETTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3664 8609 3640 8598 3637 8606 3630 8614
      3635 8621 3633 8627 3635 8628 3633 8630
      3632 8633 3636 8636 3635 8638 3649 8664
      3654 8664 3660 8659 3665 8648
TIME...MOT...LOC 2249Z 256DEG 61KT 3648 8606

$$

SHAMBURGER

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, 3:42 PM CST	Tornado Warning	OHX	Coffee, Grundy	32 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, 4:40 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

Severe Thunderstorm Warnings in Tennessee, 2012 Every severe thunderstorm warning 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.