Alert archive / Tennessee / Tornado Warnings in 2006

Tornado Warning 73, NWS Nashville, TN

April 7, 2006Cumberland County, Tennessee

NWS Nashville, TN issued this tornado warning at Apr 7, 2006, 7:13 PM CDT for Cumberland County, Tennessee. It was in force for 47 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 7, 2006, 7:13 PM CDT (00:13 UTC)
Expired: Apr 7, 2006, 8:00 PM CDT
In force: 47 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

County Cumberland County, TN

The radar

The Nashville radar (KOHX), 139 km from the middle of the area, began a volume at 00:16 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

Time	Report	Where	Remark
Apr 7, 7:40 PM CDT	TORNADO 1	11 W Crab Orchard, TN	* 4 INJ * F1 TORNADO FROM 3.8 SOUTHWEST CROSSVILLE TO 2.5 EAST OF CROSSVILLE FROM 740 PM TO 745 PM. THE TORNADO DAMAGED A CONSIDERABLE NUMBER OF ROOFS ON HOMES. PATH LENGTH WAS 6.2 MILES AND PATH WIDTH OF 150 YARDS.

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.

Issued	Product	Office	Lasted
Apr 7, 10:20 AM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.2 hours before the alert went out and 140 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 310 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 1354 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOHX 080013
TOROHX
TNC035-080100-
/O.NEW.KOHX.TO.W.0073.060408T0013Z-060408T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
713 PM CDT FRI APR 7 2006

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  CUMBERLAND COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF CROSSVILLE

* UNTIL 800 PM CDT

* AT 711 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 19 MILES
  SOUTHWEST OF LAKE TANSI...OR ABOUT NEAR SPENCER...MOVING EAST AT 45
  MPH.

* THE TORNADO IS EXPECTED TO BE...
  6 MILES SOUTH OF LAKE TANSI BY 735 PM CDT

LAT...LON 3606 8518 3576 8516 3580 8485 3611 8491

$$

21

1 follow-up statement

000 
WWUS54 KOHX 080031
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
731 PM CDT FRI APR 7 2006

TNC035-080100-
/O.CON.KOHX.TO.W.0073.000000T0000Z-060408T0100Z/
CUMBERLAND TN-
731 PM CDT FRI APR 7 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR CENTRAL
CUMBERLAND COUNTY...

AT 727 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 9 MILES SOUTHWEST OF
LAKE TANSI...OR ABOUT 15 MILES SOUTHWEST OF CROSSVILLE...MOVING
NORTHEAST AT 50 MPH.

THE TORNADO WILL BE ABOUT...
  8 MILES SOUTHEAST OF CROSSVILLE BY 740 PM CDT
  CRAB ORCHARD AND 7 MILES SOUTHEAST OF FAIRFIELD GLADE BY 750 PM CDT

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3603 8515 3587 8520 3575 8519 3580 8485
      3611 8491

$$
STEIGERWALDT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 7:05 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	25 min
Apr 7, 7:08 PM CDT	Tornado Warning	OHX	Coffee	41 min
Apr 7, 7:16 PM CDT	Tornado Warning	OHX	Giles	22 min
Apr 7, 7:35 PM CDT	Tornado Warning	OHX	Grundy	40 min
Apr 7, 7:36 PM CDT	Severe Thunderstorm Warning	OHX	Warren	39 min
Apr 7, 7:42 PM CDT	Tornado Warning	OHX	Warren	33 min
Apr 7, 7:58 PM CDT	Severe Thunderstorm Warning	OHX	Van Buren	31 min
Apr 7, 7:58 PM CDT	Severe Thunderstorm Warning	OHX	Bedford	19 min
Apr 7, 9:39 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	36 min
Apr 8, 1:01 AM CDT	Flash Flood Warning	OHX	Cumberland, Fentress	3 hr

Nearby

Tornado Warnings in Tennessee, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.