Alert archive / Tennessee / Tornado Warnings in 2014

Tornado Warning 6, NWS Nashville, TN

February 20, 2014Bedford County, Coffee County, Tennessee

NWS Nashville, TN issued this tornado warning at Feb 20, 2014, 10:03 PM CST for Bedford County, Coffee County, Tennessee. It was in force for 27 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: Feb 20, 2014, 10:03 PM CST (04:03 UTC)
Expired: Feb 20, 2014, 10:30 PM CST
In force: 27 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Bedford County, TN, Coffee County, TN

The radar

The Northeast Alabama radar (KHTX), 60 km from the middle of the area, began a volume at 04:07 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
Feb 20, 10:15 PM CST	TSTM WND DMG	7 Nw Manchester, TN	A COUPLE TREES WERE BLOWN DOWN ALONG I-24 NEAR THE 101 MILE MARKER.

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
Feb 20, 6:49 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.1 hours before the alert went out and 83 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: 231 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1039 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 346 m²/s²
0-3 km storm-relative helicity: 386 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

406 
WFUS54 KOHX 210403
TOROHX
TNC003-031-210430-
/O.NEW.KOHX.TO.W.0006.140221T0403Z-140221T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1003 PM CST THU FEB 20 2014

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

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

* UNTIL 1030 PM CST

* AT 957 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
  DANGEROUS STORM WAS LOCATED NEAR LYNCHBURG...AND MOVING NORTHEAST
  AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MANCHESTER...TULLAHOMA...RAUS...WARTRACE...NORMANDY AND
  SUMMITVILLE.

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 3532 8642 3536 8653 3568 8617 3565 8609
      3566 8599 3561 8595 3559 8596 3553 8588
      3548 8589 3533 8619 3534 8626 3541 8627
      3534 8637 3534 8640
TIME...MOT...LOC 0403Z 235DEG 48KT 3536 8634

$$

SHAMBURGER

2 follow-up statements

991 
WWUS54 KOHX 210419
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1019 PM CST THU FEB 20 2014

TNC003-210429-
/O.CAN.KOHX.TO.W.0006.000000T0000Z-140221T0430Z/
BEDFORD TN-
1019 PM CST THU FEB 20 2014

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FRIDAY MORNING FOR
CENTRAL TENNESSEE.

LAT...LON 3535 8626 3540 8627 3545 8624 3561 8625
      3568 8617 3565 8609 3566 8599 3561 8595
      3559 8596 3553 8588 3548 8589 3535 8614
      3535 8618 3533 8619
TIME...MOT...LOC 0419Z 235DEG 38KT 3546 8616

$$

TNC031-210430-
/O.CON.KOHX.TO.W.0006.000000T0000Z-140221T0430Z/
COFFEE TN-
1019 PM CST THU FEB 20 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CST FOR COFFEE
COUNTY...

AT 1017 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES NORTH OF
TULLAHOMA...OR 6 MILES WEST OF MANCHESTER...MOVING NORTHEAST AT 45
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
SUMMITVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FRIDAY MORNING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3535 8626 3540 8627 3545 8624 3561 8625
      3568 8617 3565 8609 3566 8599 3561 8595
      3559 8596 3553 8588 3548 8589 3535 8614
      3535 8618 3533 8619
TIME...MOT...LOC 0419Z 235DEG 38KT 3546 8616

$$

SHAMBURGER

245 
WWUS54 KOHX 210425
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1025 PM CST THU FEB 20 2014

TNC031-210434-
/O.EXP.KOHX.TO.W.0006.000000T0000Z-140221T0430Z/
COFFEE TN-
1025 PM CST THU FEB 20 2014

...THE TORNADO WARNING FOR COFFEE COUNTY WILL EXPIRE AT 1030 PM
CST...

THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND 
NO LONGER APPEARED CAPABLE OF PRODUCING A TORNADO.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FRIDAY MORNING 
FOR CENTRAL TENNESSEE.

LAT...LON 3535 8626 3540 8627 3545 8624 3561 8625
      3568 8617 3565 8609 3566 8599 3561 8595
      3559 8596 3553 8588 3548 8589 3535 8614
      3535 8618 3533 8619
TIME...MOT...LOC 0424Z 235DEG 38KT 3549 8610

$$

SHAMBURGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 20, 6:34 PM CST	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Lewis, Perry	56 min
Feb 20, 6:34 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery, Robertson	26 min
Feb 20, 6:41 PM CST	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	49 min
Feb 20, 6:58 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Robertson	32 min
Feb 20, 7:14 PM CST	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys	16 min
Feb 20, 7:15 PM CST	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Lewis, Marshall, Maury, Williamson	45 min
Feb 20, 7:15 PM CST	Tornado Warning	OHX	Robertson, Sumner	30 min
Feb 20, 7:25 PM CST	Severe Thunderstorm Warning	OHX	Robertson, Sumner	35 min
Feb 20, 7:28 PM CST	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lewis, Maury, Wayne	47 min
Feb 20, 7:31 PM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Robertson, Sumner	44 min
Feb 20, 7:56 PM CST	Tornado Warning	OHX	Davidson, Maury, Rutherford, Williamson	34 min
Feb 20, 8:07 PM CST	Severe Thunderstorm Warning	OHX	Davidson, Macon, Robertson, Rutherford, Sumner, Trousdale and 1 more	38 min
Feb 20, 8:09 PM CST	Tornado Warning	OHX	Davidson, Sumner, Wilson	36 min
Feb 20, 8:18 PM CST	Special Weather Statement	OHX	Giles, Lawrence, Marshall, Rutherford	42 min
Feb 20, 8:23 PM CST	Severe Thunderstorm Warning	OHX	Rutherford, Wilson	37 min
Feb 20, 8:35 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	25 min
Feb 20, 8:37 PM CST	Severe Thunderstorm Warning	OHX	Clay, DeKalb, Jackson, Macon, Smith, Sumner and 2 more	38 min
Feb 20, 8:52 PM CST	Special Weather Statement	OHX	Giles, Marshall	38 min
Feb 20, 9:07 PM CST	Severe Thunderstorm Warning	OHX	Giles, Marshall	38 min
Feb 20, 9:08 PM CST	Severe Thunderstorm Warning	OHX	Clay, DeKalb, Jackson, Overton, Pickett, Putnam and 2 more	37 min
Feb 20, 9:24 PM CST	Tornado Warning	OHX	Clay, Jackson, Overton	36 min
Feb 20, 9:40 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford, Warren	35 min
Feb 20, 9:41 PM CST	Severe Thunderstorm Warning	OHX	DeKalb, Putnam, White	34 min
Feb 20, 9:45 PM CST	Severe Thunderstorm Warning	OHX	DeKalb, Fentress, Overton, Pickett, Putnam, White	45 min
Feb 20, 9:47 PM CST	Tornado Warning	OHX	Clay, Overton, Pickett	13 min
Feb 20, 10:14 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Grundy, Van Buren, Warren	61 min
Feb 20, 10:15 PM CST	Severe Thunderstorm Warning	OHX	Cumberland, DeKalb, Putnam, White	45 min
Feb 20, 10:26 PM CST	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Pickett, Putnam	34 min
Feb 20, 10:29 PM CST	Tornado Warning	OHX	Coffee, Grundy	31 min
Feb 20, 11:19 PM CST	Special Weather Statement	OHX	Cumberland	56 min

Nearby

Tornado Warnings in Tennessee, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.