Alert archive / Tennessee / Tornado Warnings in 2020

Tornado Warning 13, NWS Nashville, TN

March 20, 2020Fentress County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 20, 2020, 12:10 PM CDT for Fentress County, Tennessee. It was in force for 24 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: Mar 20, 2020, 12:10 PM CDT (17:10 UTC)
Expired: Mar 20, 2020, 12:34 PM CDT
In force: 24 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Fentress County, TN

The radar

The Knoxville radar (KMRX), 124 km from the middle of the area, began a volume at 17:12 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 5.2 hours before the alert went out and 166 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: 131 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 757 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 436 m²/s²
0-3 km storm-relative helicity: 475 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

516 
WFUS54 KOHX 201710
TOROHX
TNC049-201745-
/O.NEW.KOHX.TO.W.0013.200320T1710Z-200320T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
1210 PM CDT Fri Mar 20 2020

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Central Fentress County in Middle Tennessee...

* Until 1245 PM CDT.
    
* At 1209 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located along Highway 127 around 5 miles south of 
  Jamestown, moving east at 35 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 tornadic thunderstorm will remain over mainly rural areas of
  central Fentress County, including the following locations...
  Allardt.

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 you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3639 8469 3637 8470 3638 8472 3637 8473
      3635 8473 3635 8474 3634 8474 3633 8476
      3633 8477 3630 8480 3630 8482 3629 8484
      3629 8487 3631 8502 3641 8503 3647 8470
      3643 8469 3641 8466 3640 8466
TIME...MOT...LOC 1709Z 267DEG 28KT 3635 8493 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Shamburger

3 follow-up statements

282 
WWUS54 KOHX 201719
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
1219 PM CDT Fri Mar 20 2020

TNC049-201745-
/O.CON.KOHX.TO.W.0013.000000T0000Z-200320T1745Z/
Fentress TN-
1219 PM CDT Fri Mar 20 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR EAST
CENTRAL FENTRESS COUNTY...
    
At 1219 PM CDT, a severe thunderstorm capable of producing a tornado 
was located 7 miles southeast of Jamestown, or just south of 
Allardt, moving east at 30 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.

Locations impacted include...
Allardt. 

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 you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3639 8469 3637 8470 3638 8472 3637 8473
      3635 8473 3635 8474 3634 8474 3633 8476
      3633 8477 3630 8480 3630 8482 3629 8484
      3629 8487 3630 8493 3643 8494 3647 8470
      3643 8469 3641 8466 3640 8466
TIME...MOT...LOC 1719Z 269DEG 25KT 3635 8485 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Shamburger

007 
WWUS54 KOHX 201727
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
1227 PM CDT Fri Mar 20 2020

TNC049-201745-
/O.CON.KOHX.TO.W.0013.000000T0000Z-200320T1745Z/
Fentress TN-
1227 PM CDT Fri Mar 20 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR EAST
CENTRAL FENTRESS COUNTY...
    
At 1226 PM CDT, a severe thunderstorm capable of producing a tornado
was located 10 miles southeast of Jamestown, moving east at 35 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.

Locations impacted include...
Allardt.

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 you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3639 8469 3637 8470 3638 8472 3637 8473
      3635 8473 3635 8474 3634 8474 3633 8476
      3633 8477 3630 8480 3632 8487 3641 8487
      3647 8470 3643 8469 3641 8466 3640 8466
TIME...MOT...LOC 1726Z 266DEG 29KT 3636 8477 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Shamburger

973 
WWUS54 KOHX 201734
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
1234 PM CDT Fri Mar 20 2020

TNC049-201744-
/O.CAN.KOHX.TO.W.0013.000000T0000Z-200320T1745Z/
Fentress TN-
1234 PM CDT Fri Mar 20 2020

...THE TORNADO WARNING FOR EAST CENTRAL FENTRESS COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Nashville.

LAT...LON 3639 8469 3637 8470 3638 8472 3637 8473
      3635 8473 3635 8474 3634 8474 3633 8476
      3633 8477 3630 8480 3632 8487 3641 8487
      3647 8470 3643 8469 3641 8466 3640 8466
TIME...MOT...LOC 1732Z 267DEG 28KT 3636 8469 

$$

Shamburger

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 20, 3:22 AM CDT	Special Weather Statement	OHX	Stewart	23 min
Mar 20, 3:53 AM CDT	Special Weather Statement	OHX	Cheatham	37 min
Mar 20, 10:08 AM CDT	Special Weather Statement	OHX	Smith	37 min
Mar 20, 11:11 AM CDT	Special Weather Statement	OHX	Overton	49 min
Mar 20, 11:24 AM CDT	Tornado Warning	OHX	Overton, Putnam	18 min
Mar 20, 11:47 AM CDT	Special Weather Statement	OHX	Fentress	43 min
Mar 20, 12:12 PM CDT	Special Weather Statement	OHX	Sumner	48 min
Mar 20, 12:39 PM CDT	Special Weather Statement	OHX	Macon	66 min
Mar 20, 12:57 PM CDT	Flash Flood Watch	OHX	Bedford, Cannon, Coffee, Cumberland, Davidson, DeKalb and 20 more	7 hr
Mar 20, 1:22 PM CDT	Special Weather Statement	OHX	Putnam	23 min
Mar 20, 1:43 PM CDT	Areal Flood Advisory	OHX	Perry, Wayne	3 hr
Mar 20, 3:48 PM CDT	Areal Flood Advisory	OHX	Davidson, Rutherford, Wilson	3 hr
Mar 20, 4:37 PM CDT	River Flood Advisory	OHX	Davidson	8 days
Mar 20, 4:55 PM CDT	River Flood Advisory	OHX	Davidson	34 hr

Nearby

Tornado Warnings in Tennessee, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.