Alert archive / Tennessee / Tornado Warnings in 2014

Tornado Warning 7, NWS Morristown, TN

April 28, 20145 counties in Tennessee

NWS Morristown, TN issued this tornado warning at Apr 28, 2014, 11:11 PM EDT for 5 counties in Tennessee. It was in force for 49 min. 4 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
Apr 28, 2014, 11:11 PM EDT (03:11 UTC)
Expired
Apr 29, 2014, 12:00 AM EDT
In force
49 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon

Counties Blount County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Monroe County, TN

The radar

The Knoxville radar (KMRX), 122 km from the middle of the area, began a volume at 03:13 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

TimeReportWhereRemark
Apr 28, 11:15 PM EDTFUNNEL CLOUDNiota, TNFUNNEL CLOUD SPOTTED NEAR NIOTA AT EXIT 52 I-75
Apr 28, 11:50 PM EDTTSTM WND DMGEnglewood, TNSEVERAL TREES DOWN.
Apr 28, 11:54 PM EDTHAIL 1.754 Sw Madisonville, TN
Apr 29, 12:06 AM EDTHAIL 11 Ese Farragut, TN

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.

IssuedProductOfficeLasted
Apr 28, 6:37 PM EDTTornado Watch PDSSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 3.2 hours before the alert went out and 197 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 2014-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1019 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 2014-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 335 square meters per square second.1939587897Sfc1 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
1019 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
789 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
335 m²/s²
0-3 km storm-relative helicity
375 m²/s²
Significant tornado parameter
2.7
Supercell composite
15.6

Open this sounding in Storm Lab

The text

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

031 
WFUS54 KMRX 290311
TORMRX
TNC009-093-105-107-123-290400-
/O.NEW.KMRX.TO.W.0007.140429T0311Z-140429T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
1111 PM EDT MON APR 28 2014

THE NATIONAL WEATHER SERVICE IN MORRISTOWN  HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL MCMINN COUNTY IN EASTERN TENNESSEE...
  LOUDON COUNTY IN EASTERN TENNESSEE...
  WESTERN BLOUNT COUNTY IN EASTERN TENNESSEE...
  SOUTHWESTERN KNOX COUNTY IN EASTERN TENNESSEE...
  NORTHERN MONROE COUNTY IN EASTERN TENNESSEE...

* UNTIL 1200 AM EDT
    
* AT 1111 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  OVER ATHENS...AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  KNOXVILLE...MARYVILLE...ATHENS...LENOIR CITY...ALCOA...
  SWEETWATER...LOUDON...MADISONVILLE...FARRAGUT...LOUISVILLE...
  ENGLEWOOD...VONORE...GREENBACK...FRIENDSVILLE...NIOTA...
  PHILADELPHIA...TELLICO VILLAGE...HAPPY VALLEY...CITICO BEACH AND
  CLOVER HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

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

&&

LAT...LON 3549 8476 3551 8475 3554 8471 3556 8469
      3595 8408 3560 8383 3535 8467
TIME...MOT...LOC 0311Z 238DEG 42KT 3547 8458 

$$

DH
3 follow-up statements
614 
WWUS54 KMRX 290324
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1124 PM EDT MON APR 28 2014

TNC009-093-105-107-123-290400-
/O.CON.KMRX.TO.W.0007.000000T0000Z-140429T0400Z/
MCMINN TN-LOUDON TN-BLOUNT TN-KNOX TN-MONROE TN-
1124 PM EDT MON APR 28 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1200 AM EDT FOR
NORTHEASTERN MCMINN...LOUDON...WESTERN BLOUNT...SOUTHWESTERN KNOX AND
NORTHWESTERN MONROE COUNTIES...
    
AT 1124 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED OVER
SWEETWATER...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
KNOXVILLE...MARYVILLE...LENOIR CITY...ALCOA...SWEETWATER...LOUDON...
MADISONVILLE...FARRAGUT...LOUISVILLE...VONORE...GREENBACK...
FRIENDSVILLE...NIOTA...PHILADELPHIA...TELLICO VILLAGE...HAPPY
VALLEY...CLOVER HILL...MCGEE CARSON PENINSULA AND FORT LOUDON S.P..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

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

&&

LAT...LON 3548 8457 3552 8462 3555 8460 3559 8465
      3595 8408 3560 8383 3546 8453
TIME...MOT...LOC 0324Z 230DEG 42KT 3560 8446 

$$

DH
393 
WWUS54 KMRX 290330
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1130 PM EDT MON APR 28 2014

TNC107-290340-
/O.CAN.KMRX.TO.W.0007.000000T0000Z-140429T0400Z/
MCMINN TN-

1130 PM EDT MON APR 28 2014

...THE TORNADO WARNING FOR NORTHEASTERN MCMINN COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3558 8450 3559 8453 3560 8452 3561 8454
      3562 8453 3564 8454 3563 8457 3564 8458
      3595 8408 3560 8383 3548 8445
TIME...MOT...LOC 0330Z 232DEG 37KT 3562 8443 

$$

TNC009-093-105-123-290400-
/O.CON.KMRX.TO.W.0007.000000T0000Z-140429T0400Z/
LOUDON TN-BLOUNT TN-KNOX TN-MONROE TN-
1130 PM EDT MON APR 28 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1200 AM EDT FOR
LOUDON...WESTERN BLOUNT...SOUTHWESTERN KNOX AND NORTHWESTERN MONROE
COUNTIES...
    
AT 1130 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED OVER
SWEETWATER...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
KNOXVILLE...MARYVILLE...LENOIR CITY...ALCOA...SWEETWATER...LOUDON...
MADISONVILLE...FARRAGUT...LOUISVILLE...VONORE...GREENBACK...
FRIENDSVILLE...PHILADELPHIA...TELLICO VILLAGE...HAPPY VALLEY...CLOVER
HILL...MCGEE CARSON PENINSULA AND FORT LOUDON S.P..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

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

&&

LAT...LON 3558 8450 3559 8453 3560 8452 3561 8454
      3562 8453 3564 8454 3563 8457 3564 8458
      3595 8408 3560 8383 3548 8445
TIME...MOT...LOC 0330Z 232DEG 37KT 3562 8443 

$$

DH
832 
WWUS54 KMRX 290340
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1140 PM EDT MON APR 28 2014

TNC009-093-105-123-290400-
/O.CON.KMRX.TO.W.0007.000000T0000Z-140429T0400Z/
LOUDON TN-BLOUNT TN-KNOX TN-MONROE TN-
1140 PM EDT MON APR 28 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1200 AM EDT FOR
LOUDON...NORTHWESTERN BLOUNT...SOUTHWESTERN KNOX AND NORTHWESTERN
MONROE COUNTIES...
    
AT 1140 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
LOUDON...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
KNOXVILLE...MARYVILLE...LENOIR CITY...ALCOA...SWEETWATER...LOUDON...
FARRAGUT...LOUISVILLE...GREENBACK...FRIENDSVILLE...PHILADELPHIA...
TELLICO VILLAGE AND CLOVER HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

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

&&

LAT...LON 3559 8446 3562 8448 3562 8449 3563 8449
      3564 8450 3565 8450 3567 8451 3568 8452
      3595 8408 3571 8391 3560 8446
TIME...MOT...LOC 0340Z 238DEG 42KT 3569 8430 

$$

DH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 9:25 PM EDTSevere Thunderstorm WarningMRXBledsoe, Marion, Sequatchie35 min
Apr 28, 9:40 PM EDTTornado WarningMRXBradley, Hamilton, Marion50 min
Apr 28, 9:52 PM EDTSevere Thunderstorm WarningMRXBledsoe, Rhea53 min
Apr 28, 10:19 PM EDTSevere Thunderstorm WarningMRXBradley, Hamilton, Loudon, McMinn, Meigs, Monroe and 2 more56 min
Apr 28, 10:21 PM EDTTornado WarningMRXBledsoe, Rhea24 min
Apr 28, 10:34 PM EDTSevere Thunderstorm WarningMRXCampbell, Morgan, Scott56 min
Apr 28, 11:35 PM EDTSevere Thunderstorm WarningMRXBradley40 min
Apr 28, 11:43 PM EDTSevere Thunderstorm WarningMRXMcMinn, Monroe47 min
Apr 28, 11:44 PM EDTTornado WarningMRXMcMinn, Monroe46 min
Apr 28, 11:51 PM EDTSevere Thunderstorm WarningMRXBlount, Knox, Loudon, Sevier54 min
Apr 29, 12:11 AM EDTTornado WarningMRXBlount, Loudon, Monroe34 min
Apr 29, 1:14 AM EDTTornado WarningMRXBlount, Knox, Loudon46 min
Apr 29, 1:25 AM EDTSevere Thunderstorm WarningMRXBlount, Loudon, Monroe35 min
Apr 29, 1:40 AM EDTAreal Flood AdvisoryMRXBradley, Hamilton, McMinn3 hr
Apr 29, 1:57 AM EDTSevere Thunderstorm WarningMRXHancock, Hawkins48 min
Apr 29, 4:39 AM EDTSpecial Weather StatementMRXBradley, McMinn, Polk51 min
Apr 29, 10:47 AM EDTRiver Flood WarningMRXCocke, Jefferson62 hr
Apr 29, 3:37 PM EDTSpecial Weather StatementMRXCarter, Johnson, Sullivan38 min

Nearby

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