Alert archive / Tennessee / Tornado Warnings in 2011

Tornado Warning 26, NWS Nashville, TN

March 23, 2011Bedford County, Coffee County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 23, 2011, 7:32 PM CDT for Bedford County, Coffee County, Tennessee. It was in force for 32 min. 2 reports 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 23, 2011, 7:32 PM CDT (00:32 UTC)
Expired
Mar 23, 2011, 8:04 PM CDT
In force
32 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Bedford County, TN, Coffee County, TN

The radar

The Northeast Alabama radar (KHTX), 50 km from the middle of the area, began a volume at 00:33 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.

What was reported inside it

TimeReportWhereRemark
Mar 23, 7:47 PM CDTFUNNEL CLOUDTullahoma, TNTRAINED SPOTTER REPORTED FUNNEL CLOUD IN TULLAHOMA.
Mar 23, 7:50 PM CDTTSTM WND DMG8 Se Manchester, TNTREES REPORTED DOWN IN HILLSBORO.

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

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, 0.5 hours before the alert went out and 92 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.

956 
WFUS54 KOHX 240032
TOROHX
TNC003-031-240115-
/O.NEW.KOHX.TO.W.0026.110324T0032Z-110324T0115Z/

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BEDFORD COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN COFFEE COUNTY IN MIDDLE TENNESSEE...

* UNTIL 815 PM CDT

* AT 728 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES SOUTHEAST OF SHELBYVILLE...AND MOVING
  EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MANCHESTER...TULLAHOMA AND NORMANDY.

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 3535 8604 3536 8616 3534 8625 3536 8625
      3537 8628 3539 8625 3541 8627 3533 8641
      3534 8647 3552 8643 3544 8588 3537 8587
      3529 8593
TIME...MOT...LOC 0032Z 282DEG 39KT 3541 8633

$$

04
2 follow-up statements
155 
WWUS54 KOHX 240045
SVSOHX

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

TNC003-240055-
/O.CAN.KOHX.TO.W.0026.000000T0000Z-110324T0115Z/
BEDFORD TN-
745 PM CDT WED MAR 23 2011

...THE TORNADO WARNING FOR SOUTHEASTERN BEDFORD COUNTY IS
CANCELLED...

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

LAT...LON 3535 8604 3536 8615 3534 8625 3536 8625
      3537 8628 3539 8625 3541 8627 3546 8623
      3550 8624 3544 8588 3538 8588 3537 8587
      3529 8593
TIME...MOT...LOC 0045Z 282DEG 39KT 3538 8616

$$

TNC031-240115-
/O.CON.KOHX.TO.W.0026.000000T0000Z-110324T0115Z/
COFFEE TN-
745 PM CDT WED MAR 23 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN COFFEE COUNTY
UNTIL 815 PM CDT...

AT 743 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR TULLAHOMA...OR 8 MILES SOUTHWEST OF
MANCHESTER...MOVING EAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  MANCHESTER.

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 3535 8604 3536 8615 3534 8625 3536 8625
      3537 8628 3539 8625 3541 8627 3546 8623
      3550 8624 3544 8588 3538 8588 3537 8587
      3529 8593
TIME...MOT...LOC 0045Z 282DEG 39KT 3538 8616

$$

04
387 
WWUS54 KOHX 240104
SVSOHX

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

TNC031-240113-
/O.CAN.KOHX.TO.W.0026.000000T0000Z-110324T0115Z/
COFFEE TN-
804 PM CDT WED MAR 23 2011

...THE TORNADO WARNING FOR SOUTHERN COFFEE COUNTY IS CANCELLED...

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

LAT...LON 3535 8604 3536 8615 3534 8625 3536 8625
      3537 8628 3539 8625 3541 8627 3546 8623
      3550 8624 3544 8588 3538 8588 3537 8587
      3529 8593
TIME...MOT...LOC 0103Z 282DEG 39KT 3534 8593

$$

04

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, 7:38 PM CDTTornado WarningOHXCumberland22 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.