Alert archive / Tennessee / Tornado Warnings in 2015

Tornado Warning 29, NWS Memphis, TN

December 23, 2015Benton County, Tennessee

NWS Memphis, TN issued this tornado warning at Dec 23, 2015, 6:01 PM CST for Benton County, Tennessee. It was in force for 13 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: Dec 23, 2015, 6:01 PM CST (00:01 UTC)
Expired: Dec 23, 2015, 6:14 PM CST
In force: 13 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Benton County, TN

The radar

The Ft Campbell radar (KHPX), 110 km from the middle of the area, began a volume at 00:02 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.

Issued	Product	Office	Lasted
Dec 23, 11:57 AM CST	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.0 hours before the alert went out and 131 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: 26 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 624 m above ground
0-6 km bulk shear: 89 kt
0-1 km storm-relative helicity: 598 m²/s²
0-3 km storm-relative helicity: 698 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

408 
WFUS54 KMEG 240001
TORMEG
TNC005-240030-
/O.NEW.KMEG.TO.W.0029.151224T0001Z-151224T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
601 PM CST WED DEC 23 2015

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN BENTON COUNTY IN WEST TENNESSEE...

* UNTIL 630 PM CST
        
* AT 601 PM CST...A SEVERE THUNDERSTORM PRODUCING A TORNADO WAS
  LOCATED 10 MILES SOUTHEAST OF BRUCETON...OR 10 MILES SOUTH OF
  CAMDEN...MOVING NORTHEAST AT 55 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  NEW JOHNSONVILLE AROUND 615 PM CST.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
HOLLADAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 3587 8794 3585 8814 3585 8819 3590 8822
      3595 8821 3611 8794 3610 8794 3603 8800
      3600 8800 3598 8802 3596 8802 3594 8800
      3594 8793
TIME...MOT...LOC 0001Z 246DEG 50KT 3591 8815 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

1 follow-up statement

860 
WWUS54 KMEG 240014
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
614 PM CST WED DEC 23 2015

TNC005-240024-
/O.CAN.KMEG.TO.W.0029.000000T0000Z-151224T0030Z/
BENTON TN-
614 PM CST WED DEC 23 2015

...THE TORNADO WARNING FOR SOUTHERN BENTON COUNTY IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST FOR WESTERN
TENNESSEE.

LAT...LON 3587 8794 3585 8814 3585 8819 3590 8822
      3595 8821 3611 8794 3610 8794 3603 8800
      3600 8800 3598 8802 3596 8802 3594 8800
      3594 8793
TIME...MOT...LOC 0012Z 246DEG 50KT 3598 8794 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 23, 6:04 PM CST	Flash Flood Warning	MEG	Decatur, Hardin	116 min
Dec 23, 6:20 PM CST	Tornado Warning	MEG	Hardin	40 min
Dec 23, 6:24 PM CST	Flash Flood Warning	MEG	Hardin, McNairy	3 hr
Dec 23, 7:02 PM CST	Tornado Warning	MEG	Hardin	11 min

Nearby

Tornado Warnings in Tennessee, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.