Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 106, NWS Nashville, TN

June 21, 20215 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 21, 2021, 4:44 PM CDT for 5 counties in Tennessee. It was in force for 46 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: Jun 21, 2021, 4:44 PM CDT (21:44 UTC)
Expired: Jun 21, 2021, 5:30 PM CDT
In force: 46 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cannon County, TN, DeKalb County, TN, Van Buren County, TN, Warren County, TN, White County, TN

The radar

The Nashville radar (KOHX), 79 km from the middle of the area, began a volume at 21:44 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
Jun 21, 4:50 PM CDT	TSTM WND DMG	5 Se Woodbury, TN	TREE DOWN ALONG MCMINNVILLE HWY

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
Jun 21, 12:52 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.7 hours before the alert went out and 74 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: 1530 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 919 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 211 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 9.6

Open this sounding in Storm Lab

The text

As transmitted.

740 
WUUS54 KOHX 212144
SVROHX
TNC015-041-175-177-185-212230-
/O.NEW.KOHX.SV.W.0106.210621T2144Z-210621T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
444 PM CDT Mon Jun 21 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southeastern De Kalb County in Middle Tennessee...
  Northwestern Van Buren County in Middle Tennessee...
  Northern Warren County in Middle Tennessee...
  Southwestern White County in Middle Tennessee...
  Cannon County in Middle Tennessee...

* Until 530 PM CDT.

* At 444 PM CDT, a severe thunderstorm was located near Woodbury,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  McMinnville, Woodbury, Centertown and Rock Island State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3568 8616 3587 8615 3596 8554 3565 8556
TIME...MOT...LOC 2144Z 268DEG 35KT 3579 8600 

HAIL...<.75IN
WIND...60MPH
 
$$

10

2 follow-up statements

274 
WWUS54 KOHX 212204
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
504 PM CDT Mon Jun 21 2021

TNC015-212213-
/O.CAN.KOHX.SV.W.0106.000000T0000Z-210621T2230Z/
Cannon TN-
504 PM CDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR CANNON COUNTY IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
Middle Tennessee.

LAT...LON 3567 8599 3570 8599 3571 8600 3573 8599
      3578 8594 3579 8594 3582 8592 3583 8588
      3584 8588 3585 8590 3586 8589 3590 8594
      3596 8554 3565 8556
TIME...MOT...LOC 2203Z 268DEG 35KT 3580 8577 

$$

TNC041-175-177-185-212230-
/O.CON.KOHX.SV.W.0106.000000T0000Z-210621T2230Z/
De Kalb TN-Van Buren TN-Warren TN-White TN-
504 PM CDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR SOUTHEASTERN DE KALB...NORTHWESTERN VAN BUREN...NORTHERN WARREN
AND SOUTHWESTERN WHITE COUNTIES...

At 503 PM CDT, a severe thunderstorm was located 7 miles north of
McMinnville, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
McMinnville, Centertown and Rock Island State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3567 8599 3570 8599 3571 8600 3573 8599
      3578 8594 3579 8594 3582 8592 3583 8588
      3584 8588 3585 8590 3586 8589 3590 8594
      3596 8554 3565 8556
TIME...MOT...LOC 2203Z 268DEG 35KT 3580 8577 

HAIL...<.75IN
WIND...60MPH
 
$$

10

644 
WWUS54 KOHX 212220
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
520 PM CDT Mon Jun 21 2021

TNC041-175-177-185-212230-
/O.CON.KOHX.SV.W.0106.000000T0000Z-210621T2230Z/
De Kalb TN-Van Buren TN-Warren TN-White TN-
520 PM CDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR SOUTHEASTERN DE KALB...NORTHWESTERN VAN BUREN...NORTHERN WARREN
AND SOUTHWESTERN WHITE COUNTIES...

At 519 PM CDT, a severe thunderstorm was located 7 miles northwest of
Spencer, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
McMinnville, Centertown and Rock Island State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3567 8599 3575 8590 3583 8578 3589 8571
      3593 8563 3596 8554 3565 8556
TIME...MOT...LOC 2219Z 268DEG 35KT 3581 8557 

HAIL...<.75IN
WIND...60MPH
 
$$

10

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 12:18 PM CDT	Special Weather Statement	OHX	Macon	27 min
Jun 21, 12:53 PM CDT	Special Weather Statement	OHX	Stewart	52 min
Jun 21, 1:32 PM CDT	Special Weather Statement	OHX	Robertson	43 min
Jun 21, 1:41 PM CDT	Special Weather Statement	OHX	Dickson, Houston, Montgomery, Stewart	49 min
Jun 21, 1:52 PM CDT	Special Weather Statement	OHX	Clay	23 min
Jun 21, 1:59 PM CDT	Special Weather Statement	OHX	Smith, Wilson	46 min
Jun 21, 2:04 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Smith, Wilson	41 min
Jun 21, 2:05 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery	40 min
Jun 21, 2:36 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson	39 min
Jun 21, 2:38 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Overton, Putnam, Smith	37 min
Jun 21, 3:10 PM CDT	Special Weather Statement	OHX	Davidson, Trousdale, Wilson	50 min
Jun 21, 3:13 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Fentress, Jackson, Overton, Pickett	47 min
Jun 21, 3:40 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Overton	35 min
Jun 21, 3:50 PM CDT	Special Weather Statement	OHX	Cumberland	40 min
Jun 21, 4:39 PM CDT	Special Weather Statement	OHX	Cannon, Warren	51 min
Jun 21, 5:22 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, Warren, White	38 min
Jun 21, 5:57 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland	33 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2021 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.