Alert archive / Tennessee / Tornado Warnings in 2021

Tornado Warning 15, NWS Nashville, TN

April 24, 2021Coffee County, Grundy County, Warren County, Tennessee

NWS Nashville, TN issued this tornado warning at Apr 24, 2021, 5:22 PM CDT for Coffee County, Grundy County, Warren County, Tennessee. It was in force for 23 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: Apr 24, 2021, 5:22 PM CDT (22:22 UTC)
Expired: Apr 24, 2021, 5:45 PM CDT
In force: 23 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Coffee County, TN, Grundy County, TN, Warren County, TN

The radar

The Northeast Alabama radar (KHTX), 61 km from the middle of the area, began a volume at 22:23 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, 10.4 hours before the alert went out and 97 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 710 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

354 
WFUS54 KOHX 242222
TOROHX
TNC031-061-177-242245-
/O.NEW.KOHX.TO.W.0015.210424T2222Z-210424T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
522 PM CDT Sat Apr 24 2021

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Southwestern Warren County in Middle Tennessee...
  Southeastern Coffee County in Middle Tennessee...
  Northwestern Grundy County in Middle Tennessee...

* Until 545 PM CDT.
    
* At 521 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Manchester, moving northeast 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
  southwestern Warren, southeastern Coffee and northwestern Grundy
  Counties, including the following locations... Altamont, Viola,
  Hillsboro, Beersheba Springs, Summitville and Morrison.

This includes Interstate 24 between mile markers 110 and 122.
 
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 3534 8602 3549 8614 3568 8574 3546 8566
TIME...MOT...LOC 2221Z 239DEG 48KT 3546 8601 

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

$$

07

1 follow-up statement

348 
WWUS54 KOHX 242234
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
534 PM CDT Sat Apr 24 2021

TNC031-061-177-242245-
/O.CON.KOHX.TO.W.0015.000000T0000Z-210424T2245Z/
Warren TN-Coffee TN-Grundy TN-
534 PM CDT Sat Apr 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR SOUTH
CENTRAL WARREN...SOUTHEASTERN COFFEE AND NORTHWESTERN GRUNDY
COUNTIES...
    
At 534 PM CDT, a severe thunderstorm capable of producing a tornado 
was located 9 miles south of McMinnville, moving northeast 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...
Altamont, Beersheba Springs, Viola and Hillsboro. 

This includes Interstate 24 between mile markers 121 and 122.
 
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 3536 8597 3548 8602 3563 8572 3562 8572
      3545 8569 3545 8571
TIME...MOT...LOC 2234Z 239DEG 48KT 3555 8582 

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

$$

07

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 3:44 PM CDT	Special Weather Statement	OHX	Bedford, Marshall	46 min
Apr 24, 4:13 PM CDT	Special Weather Statement	OHX	Cannon	47 min
Apr 24, 4:17 PM CDT	Special Weather Statement	OHX	Williamson	28 min
Apr 24, 4:28 PM CDT	Special Weather Statement	OHX	Bedford, Coffee	32 min
Apr 24, 4:47 PM CDT	Special Weather Statement	OHX	Giles	28 min
Apr 24, 5:05 PM CDT	Special Weather Statement	OHX	Coffee, Grundy, Warren	40 min
Apr 24, 5:45 PM CDT	Special Weather Statement	OHX	Grundy, Van Buren	30 min
Apr 24, 6:02 PM CDT	Tornado Warning	OHX	Grundy	28 min

Nearby

Tornado Warnings in Tennessee, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.