Alert archive / Tennessee / Tornado Warnings in 2014

Tornado Warning 17, NWS Nashville, TN

October 10, 2014Hickman County, Maury County, Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Oct 10, 2014, 8:43 PM CDT for Hickman County, Maury County, Williamson County, Tennessee. It was in force for 15 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
Oct 10, 2014, 8:43 PM CDT (01:43 UTC)
Expired
Oct 10, 2014, 8:58 PM CDT
In force
15 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Hickman County, TN, Maury County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 68 km from the middle of the area, began a volume at 01:44 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.7 hours before the alert went out and 59 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 00:00Z on 2014-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 100 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 00:00Z on 2014-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 square meters per square second.19395878Sfc1 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
100 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
852 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
197 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

336 
WFUS54 KOHX 110143
TOROHX
TNC081-119-187-110215-
/O.NEW.KOHX.TO.W.0017.141011T0143Z-141011T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
843 PM CDT FRI OCT 10 2014

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HICKMAN COUNTY IN MIDDLE TENNESSEE...
  EXTREME NORTH CENTRAL MAURY COUNTY IN MIDDLE TENNESSEE...
  WEST CENTRAL WILLIAMSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 915 PM CDT

* AT 841 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
  DANGEROUS STORM WAS LOCATED NEAR CENTERVILLE...AND MOVING EAST AT
  25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FAIRVIEW AND PRIMM SPRINGS.

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.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

LAT...LON 3599 8709 3578 8707 3583 8736 3594 8735
TIME...MOT...LOC 0143Z 265DEG 23KT 3587 8732

$$
BOYD
2 follow-up statements
303 
WWUS54 KOHX 110153
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
853 PM CDT FRI OCT 10 2014

TNC081-119-187-110215-
/O.CON.KOHX.TO.W.0017.000000T0000Z-141011T0215Z/
WILLIAMSON TN-HICKMAN TN-MAURY TN-
853 PM CDT FRI OCT 10 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR EXTREME
NORTH CENTRAL MAURY...NORTHEASTERN HICKMAN AND WEST CENTRAL
WILLIAMSON COUNTIES...

AT 849 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED OVER EAST CENTRAL HICKMAN COUNTY...MOVING EAST AT
25 MPH. THE STORM HAS DECREASED IN ROTATION DURING THE LAST 10 MINUTES. 
IF THIS TREND CONTINUES WILL LIKELY CANCEL WARNING AROUND 9 PM CDT.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME EASTERN HICKMAN...EXTREME NORTHERN
  MAURY AND WESTERN WILLIAMSON COUNTIES.

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.

&&

LAT...LON 3584 8730 3592 8730 3599 8709 3578 8707
TIME...MOT...LOC 0151Z 265DEG 23KT 3587 8726

$$
BOYD
668 
WWUS54 KOHX 110158
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
858 PM CDT FRI OCT 10 2014

TNC081-119-187-110208-
/O.CAN.KOHX.TO.W.0017.000000T0000Z-141011T0215Z/
WILLIAMSON TN-HICKMAN TN-MAURY TN-
858 PM CDT FRI OCT 10 2014

...THE TORNADO WARNING FOR EXTREME NORTH CENTRAL MAURY...NORTHEASTERN
HICKMAN AND WEST CENTRAL WILLIAMSON COUNTIES IS CANCELLED... THE STORM
THAT PROMPTED THE WARNING HAS WEAKENED.

LAT...LON 3584 8730 3592 8730 3599 8709 3578 8707
TIME...MOT...LOC 0158Z 265DEG 23KT 3587 8720

$$
BOYD

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 7:41 PM CDTSpecial Weather StatementOHXHickman49 min
Oct 10, 7:46 PM CDTTornado WarningOHXHickman, Humphreys29 min
Oct 10, 8:12 PM CDTTornado WarningOHXHickman33 min
Oct 10, 8:55 PM CDTSpecial Weather StatementOHXDavidson35 min
Oct 10, 9:08 PM CDTAreal Flood AdvisoryOHXDavidson, Williamson112 min
Oct 10, 9:19 PM CDTSpecial Weather StatementOHXRutherford26 min
Oct 10, 9:53 PM CDTSpecial Weather StatementOHXBedford, Cannon, Clay, Coffee, DeKalb, Fentress and 15 more37 min

Nearby

Tornado Warnings in Tennessee, 2014Every tornado warning in 2014Tornadoes in 2014

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.