Alert archive / Tennessee / Tornado Warnings in 2014

Tornado Warning 14, NWS Nashville, TN

July 27, 2014Fentress County, Tennessee

NWS Nashville, TN issued this tornado warning at Jul 27, 2014, 5:32 PM CDT for Fentress County, Tennessee. It was in force for 28 min. 2 reports 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: Jul 27, 2014, 5:32 PM CDT (22:32 UTC)
Expired: Jul 27, 2014, 6:00 PM CDT
In force: 28 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

County Fentress County, TN

The radar

The Knoxville radar (KMRX), 136 km from the middle of the area, began a volume at 22:35 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
Jul 27, 5:33 PM CDT	TSTM WND DMG	6 Wsw Jamestown, TN	TREES AND POWER LINES DOWN SW AND SOUTH OF JAMESTOWN
Jul 27, 5:40 PM CDT	TSTM WND DMG	1 Se Jamestown, TN	TREE FELL ONTO A HOUSE AND CAR ON OLD ALLARDT ROAD JUST SOUTHEAST OF JAMESTOWN

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
Jul 27, 12:00 PM CDT	Tornado Watch	SPC	11 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.5 hours before the alert went out and 154 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: 1964 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 768 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

213 
WFUS54 KOHX 272232
TOROHX
TNC049-272300-
/O.NEW.KOHX.TO.W.0014.140727T2232Z-140727T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
532 PM CDT SUN JUL 27 2014

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL FENTRESS COUNTY IN MIDDLE TENNESSEE...

* UNTIL 600 PM CDT

* AT 530 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
  DANGEROUS STORM WAS LOCATED NEAR JAMESTOWN...AND MOVING SOUTHEAST
  AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALLARDT.

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.

LAT...LON 3633 8478 3629 8480 3629 8486 3624 8487
      3623 8489 3640 8512 3641 8510 3644 8510
      3648 8507 3635 8474 3634 8473
TIME...MOT...LOC 2232Z 302DEG 32KT 3639 8503

$$

TB12

2 follow-up statements

672 
WWUS54 KOHX 272245
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
545 PM CDT SUN JUL 27 2014

TNC049-272300-
/O.CON.KOHX.TO.W.0014.000000T0000Z-140727T2300Z/
FENTRESS TN-
545 PM CDT SUN JUL 27 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR CENTRAL
FENTRESS COUNTY...

AT 544 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR ALLARDT...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALLARDT.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3633 8478 3629 8480 3629 8486 3624 8487
      3623 8489 3640 8512 3641 8510 3644 8510
      3648 8507 3635 8474 3634 8473
TIME...MOT...LOC 2245Z 291DEG 21KT 3635 8493

$$

TB12

500 
WWUS54 KOHX 272250
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
550 PM CDT SUN JUL 27 2014

TNC049-272300-
/O.EXP.KOHX.TO.W.0014.000000T0000Z-140727T2300Z/
FENTRESS TN-
550 PM CDT SUN JUL 27 2014

...THE TORNADO WARNING FOR CENTRAL FENTRESS COUNTY WILL BE ALLOWED 
TO EXPIRE AT 600 PM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING FOR
CENTRAL TENNESSEE.

LAT...LON 3633 8478 3629 8480 3629 8486 3624 8487
      3623 8489 3640 8512 3641 8510 3644 8510
      3648 8507 3635 8474 3634 8473
TIME...MOT...LOC 2250Z 291DEG 21KT 3634 8490

$$

TB12

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 4:33 PM CDT	Severe Thunderstorm Warning	OHX	Pickett	27 min
Jul 27, 4:47 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Overton, Pickett	28 min
Jul 27, 5:12 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Fentress, Overton, Pickett	33 min
Jul 27, 5:42 PM CDT	Severe Thunderstorm Warning	OHX	Fentress	33 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.