Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 51, NWS Nashville, TN

May 5, 2012Clay County, Overton County, Pickett County, Tennessee

NWS Nashville, TN issued this tornado warning at May 5, 2012, 4:39 AM CDT for Clay County, Overton County, Pickett County, Tennessee. It was in force for 36 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
May 5, 2012, 4:39 AM CDT (09:39 UTC)
Expired
May 5, 2012, 5:15 AM CDT
In force
36 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Clay County, TN, Overton County, TN, Pickett County, TN

The radar

The Nashville radar (KOHX), 112 km from the middle of the area, began a volume at 09:42 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
May 5, 2:49 AM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 9.7 hours before the alert went out and 120 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 2012-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1078 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 2012-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.193958Sfc1 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
1078 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1542 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

624 
WFUS54 KOHX 050939
TOROHX
TNC027-133-137-051015-
/O.NEW.KOHX.TO.W.0051.120505T0939Z-120505T1015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
439 AM CDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CLAY COUNTY IN MIDDLE TENNESSEE...
  NORTHERN OVERTON COUNTY IN MIDDLE TENNESSEE...
  WESTERN PICKETT COUNTY IN MIDDLE TENNESSEE...

* UNTIL 515 AM CDT

* AT 437 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGIST IN 
NASHVILLE WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A 
TORNADO. THIS DANGEROUS  STORM WAS LOCATED 7 MILES NORTH OF 
CELINA...AND MOVING SOUTHEAST AT 35 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  CELINA AROUND 445 AM CDT.
  LIVINGSTON AROUND 510 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3654 8507 3628 8537 3662 8565 3662 8564
      3662 8549 3663 8541 3663 8525
TIME...MOT...LOC 0938Z 318DEG 32KT 3664 8551

$$

BOYD
2 follow-up statements
525 
WWUS54 KOHX 050944
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
444 AM CDT SAT MAY 5 2012

TNC027-133-137-051015-
/O.CON.KOHX.TO.W.0051.000000T0000Z-120505T1015Z/
OVERTON TN-PICKETT TN-CLAY TN-
444 AM CDT SAT MAY 5 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN CLAY...WESTERN
PICKETT AND NORTHERN OVERTON COUNTIES UNTIL 515 AM CDT...

AT 442 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS ARE TRACKING 
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
DANGEROUS STORM WAS LOCATED NEAR CELINA...MOVING SOUTHEAST AT 35 MPH.
THIS STORM WILL MOVE ACROSS DALE HOLLOW LAKE DURING THE NEXT 15 TO 
30 MINUTES. BOATERS SHOULD HEAD QUICKLY FOR SHORE AND SEEK COVER 
FROM THIS STORM.

THIS DANGEROUS STORM WILL BE NEAR...
  LIVINGSTON AROUND 510 AM CDT.

LAT...LON 3654 8507 3628 8537 3662 8565 3662 8564
      3662 8549 3663 8541 3663 8525
TIME...MOT...LOC 0943Z 318DEG 32KT 3661 8547

$$

BOYD
041 
WWUS54 KOHX 050959
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
459 AM CDT SAT MAY 5 2012

TNC027-133-137-051015-
/O.CON.KOHX.TO.W.0051.000000T0000Z-120505T1015Z/
OVERTON TN-PICKETT TN-CLAY TN-
459 AM CDT SAT MAY 5 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL CLAY...
SOUTHWESTERN PICKETT AND NORTHERN OVERTON COUNTIES UNTIL 515 AM
CDT...

AT 455 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 9 MILES NORTH OF LIVINGSTON...MOVING SOUTHEAST AT 
35 MPH. THIS STORM HAS MOVED TO THE SOUTH OF DALE HOLLOW LAKE.

THIS DANGEROUS STORM WILL BE NEAR...
  LIVINGSTON AROUND 505 AM CDT.

LAT...LON 3647 8545 3659 8529 3648 8514 3634 8530
TIME...MOT...LOC 0958Z 316DEG 32KT 3649 8533

$$

BOYD

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 4:07 AM CDTSpecial Weather StatementOHXCheatham, Clay, Fentress, Houston, Jackson, Macon and 7 more53 min
May 5, 5:12 AM CDTSevere Thunderstorm WarningOHXFentress33 min
May 5, 5:28 AM CDTSpecial Weather StatementOHXBenton, Cannon, Cheatham, Clay, Cumberland, Davidson and 21 more62 min
May 5, 7:59 AM CDTSpecial Weather StatementOHXMarshall, Maury61 min

Nearby

Tornado Warnings in Tennessee, 2012Every tornado warning in 2012Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.