Alert archive / Tennessee / Tornado Warnings in 2011

Tornado Warning 50, NWS Nashville, TN

April 25, 2011Montgomery County, Stewart County, Tennessee

NWS Nashville, TN issued this tornado warning at Apr 25, 2011, 3:37 PM CDT for Montgomery County, Stewart County, Tennessee. It was in force for 23 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
Apr 25, 2011, 3:37 PM CDT (20:37 UTC)
Expired
Apr 25, 2011, 4:00 PM CDT
In force
23 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Montgomery County, TN, Stewart County, TN

What was reported inside it

TimeReportWhereRemark
Apr 25, 3:55 PM CDTTORNADO10 Ene Dover, TNPUBLIC REPORTED A TORNADO ON THE GROUND JUST NORTH OF HIGHWAY 79 NEAR THE MONTGOMERY-STEWART COUNTY LINE.

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
Apr 25, 2:29 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.6 hours before the alert went out and 95 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 2011-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 73 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 2011-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
73 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1101 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
201 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.

092 
WFUS54 KOHX 252037
TOROHX
TNC125-161-252100-
/O.NEW.KOHX.TO.W.0050.110425T2037Z-110425T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
337 PM CDT MON APR 25 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN MONTGOMERY COUNTY IN MIDDLE TENNESSEE...
  EASTERN STEWART COUNTY IN MIDDLE TENNESSEE...

* UNTIL 400 PM CDT

* AT 333 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR DOVER...AND MOVING NORTHEAST AT 40 MPH.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN
  STEWART AND NORTHWESTERN MONTGOMERY 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 AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3662 8732 3637 8767 3637 8770 3635 8775
      3665 8772 3665 8733
TIME...MOT...LOC 2036Z 236DEG 42KT 3650 8776

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 4:43 AM CDTFlash Flood WatchOHXBedford, Benton, Cannon, Cheatham, Clay, Coffee and 33 more64 hr
Apr 25, 7:18 AM CDTAreal Flood AdvisoryOHXBenton, Houston, Montgomery, Stewart3 hr
Apr 25, 2:48 PM CDTSevere Thunderstorm WarningOHXBenton, Houston, Humphreys, Stewart57 min
Apr 25, 3:14 PM CDTTornado WarningOHXBenton, Houston, Stewart31 min
Apr 25, 3:48 PM CDTRiver Flood WatchOHXMontgomery70 hr
Apr 25, 3:48 PM CDTRiver Flood WatchOHXCheatham70 hr
Apr 25, 3:48 PM CDTRiver Flood WatchOHXDavidson, Williamson70 hr
Apr 25, 3:48 PM CDTRiver Flood WatchOHXMontgomery, Robertson70 hr

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.