Alert archive / Tennessee / Tornado Warnings in 2011

Tornado Warning 27, NWS Nashville, TN

March 23, 2011Cumberland County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 23, 2011, 7:38 PM CDT for Cumberland County, Tennessee. It was in force for 22 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 23, 2011, 7:38 PM CDT (00:38 UTC)
Expired
Mar 23, 2011, 8:00 PM CDT
In force
22 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

County Cumberland County, TN

The radar

The Northeast Alabama radar (KHTX), 141 km from the middle of the area, began a volume at 00:38 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.

IssuedProductOfficeLasted
Mar 23, 4:06 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.6 hours before the alert went out and 152 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 2011-03-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 239 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 2011-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.1939587897117136Sfc1 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
239 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

745 
WFUS54 KOHX 240038
TOROHX
TNC035-240100-
/O.NEW.KOHX.TO.W.0027.110324T0038Z-110324T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
738 PM CDT WED MAR 23 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CUMBERLAND COUNTY IN MIDDLE TENNESSEE...

* UNTIL 800 PM CDT

* AT 733 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A CONFIRMED TORNADO 9 MILES SOUTHWEST OF CROSSVILLE. DOPPLER RADAR
  SHOWED THIS TORNADO MOVING EAST AT 45 MPH.

* THE TORNADO WILL AFFECT MAINLY RURAL AREAS OF SOUTHERN CUMBERLAND
  COUNTY.

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 3582 8476 3583 8480 3577 8489 3575 8499
      3575 8502 3577 8504 3577 8518 3578 8521
      3595 8513 3584 8474
TIME...MOT...LOC 0038Z 290DEG 39KT 3583 8507

$$

ROSE
1 follow-up statement
037 
WWUS54 KOHX 240054
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
754 PM CDT WED MAR 23 2011

TNC035-240104-
/O.EXP.KOHX.TO.W.0027.000000T0000Z-110324T0100Z/
CUMBERLAND TN-
754 PM CDT WED MAR 23 2011

...THE TORNADO WARNING FOR SOUTHERN CUMBERLAND COUNTY WILL EXPIRE AT
800 PM CDT...

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

LAT...LON 3582 8476 3583 8480 3577 8489 3575 8499
      3575 8502 3577 8504 3577 8518 3578 8521
      3595 8513 3584 8474
TIME...MOT...LOC 0054Z 290DEG 39KT 3577 8487

$$

ROSE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 7:03 PM CDTTornado WarningOHXBedford, Marshall27 min
Mar 23, 7:09 PM CDTTornado WarningOHXCumberland, White36 min
Mar 23, 7:19 PM CDTTornado WarningOHXGiles26 min
Mar 23, 7:29 PM CDTSevere Thunderstorm WarningOHXBedford, Coffee31 min
Mar 23, 7:32 PM CDTTornado WarningOHXBedford, Coffee32 min

Nearby

Tornado Warnings in Tennessee, 2011Every tornado warning in 2011Tornadoes in 2011

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.