Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 53, NWS Nashville, TN

March 14, 20124 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 14, 2012, 5:27 PM CDT for 4 counties in Tennessee. It was in force for 33 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 14, 2012, 5:27 PM CDT (22:27 UTC)
Expired
Mar 14, 2012, 6:00 PM CDT
In force
33 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Cheatham County, TN, Dickson County, TN, Houston County, TN, Humphreys County, TN

What was reported inside it

TimeReportWhereRemark
Mar 14, 6:00 PM CDTHAIL 1Charlotte, TN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.5 hours before the alert went out and 68 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2012-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 486 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2012-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
486 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1099 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

028 
WUUS54 KOHX 142227
SVROHX
TNC021-043-083-085-142300-
/O.NEW.KOHX.SV.W.0053.120314T2227Z-120314T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
527 PM CDT WED MAR 14 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DICKSON COUNTY IN MIDDLE TENNESSEE...
  WESTERN CHEATHAM COUNTY IN MIDDLE TENNESSEE...
  SOUTHEASTERN HOUSTON COUNTY IN MIDDLE TENNESSEE...
  NORTHEASTERN HUMPHREYS COUNTY IN MIDDLE TENNESSEE...

* UNTIL 600 PM CDT

* AT 522 PM CDT 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 MCEWEN...
  MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DICKSON...
  WHITE BLUFF...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CONTAIN DAMAGING WINDS 58 MPH OR STRONGER...OR
HAIL ONE INCH OR LARGER. FOR YOUR SAFETY...TAKE SHELTER INSIDE A
BUILDING LOCATION NOW.

&&

LAT...LON 3638 8716 3606 8712 3606 8764 3627 8770
      3633 8741 3632 8735 3632 8731 3631 8730
      3633 8728 3635 8728
TIME...MOT...LOC 2227Z 253DEG 32KT 3619 8752

$$

FORECASTER:07
1 follow-up statement
161 
WWUS54 KOHX 142246
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
546 PM CDT WED MAR 14 2012

TNC083-085-142255-
/O.CAN.KOHX.SV.W.0053.000000T0000Z-120314T2300Z/
HOUSTON TN-HUMPHREYS TN-
546 PM CDT WED MAR 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HUMPHREYS AND
SOUTHEASTERN HOUSTON COUNTIES IS CANCELLED...

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

LAT...LON 3638 8716 3606 8712 3611 8747 3628 8752
      3633 8741 3632 8735 3632 8732 3631 8730
      3633 8728 3635 8728
TIME...MOT...LOC 2245Z 253DEG 30KT 3623 8737

$$

TNC021-043-142300-
/O.CON.KOHX.SV.W.0053.000000T0000Z-120314T2300Z/
DICKSON TN-CHEATHAM TN-
546 PM CDT WED MAR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
CHEATHAM AND NORTHERN DICKSON COUNTIES UNTIL 600 PM CDT...

AT 541 PM CDT...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 10 MILES 
NORTH OF DICKSON...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  WHITE BLUFF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 3638 8716 3606 8712 3611 8747 3628 8752
      3633 8741 3632 8735 3632 8732 3631 8730
      3633 8728 3635 8728
TIME...MOT...LOC 2245Z 253DEG 30KT 3623 8737

$$

BOYD

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 14, 4:23 PM CDTSevere Thunderstorm WarningOHXHumphreys37 min
Mar 14, 4:25 PM CDTSevere Thunderstorm WarningOHXGiles, Lawrence17 min
Mar 14, 4:45 PM CDTSevere Thunderstorm WarningOHXDickson, Hickman, Humphreys45 min
Mar 14, 5:10 PM CDTFlash Flood WarningOHXHickman2 hr
Mar 14, 5:13 PM CDTSevere Thunderstorm WarningOHXDickson, Hickman, Maury, Williamson47 min
Mar 14, 5:51 PM CDTSevere Thunderstorm WarningOHXDavidson, Williamson24 min
Mar 14, 6:04 PM CDTSevere Thunderstorm WarningOHXDavidson, Robertson, Sumner26 min
Mar 14, 6:08 PM CDTSevere Thunderstorm WarningOHXCheatham, Dickson23 min
Mar 14, 6:14 PM CDTSevere Thunderstorm WarningOHXDavidson, Rutherford, Williamson31 min
Mar 14, 6:29 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Robertson, Sumner31 min
Mar 14, 6:36 PM CDTSevere Thunderstorm WarningOHXRobertson, Sumner39 min
Mar 14, 6:55 PM CDTSevere Thunderstorm WarningOHXMacon, Sumner, Trousdale35 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2012Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.