Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 74, NWS Nashville, TN

May 6, 20219 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 6, 2021, 4:44 PM CDT for 9 counties in Tennessee. It was in force for 31 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: May 6, 2021, 4:44 PM CDT (21:44 UTC)
Expired: May 6, 2021, 5:15 PM CDT
In force: 31 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cheatham County, TN, Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Montgomery County, TN, Perry County, TN, Robertson County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 72 km from the middle of the area, began a volume at 21:48 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
May 6, 4:45 PM CDT	TSTM WND DMG	2 Ene Dickson, TN	TREES DOWN OLD COLUMBIA ROAD NEAR HIGHWAY 70. #TSPOTTER
May 6, 4:56 PM CDT	TSTM WND DMG	4 S Coopertown, TN	* 1 FATAL * A LARGE TREE FELL ON A MOTORCYCLIST AT SOUTH WALKER RD AND MCMAHAN HOLLOW RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.7 hours before the alert went out and 66 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: 1719 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: -90 m²/s²
0-3 km storm-relative helicity: -71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

229 
WUUS54 KOHX 062144
SVROHX
TNC021-043-081-083-085-125-135-147-187-062215-
/O.NEW.KOHX.SV.W.0074.210506T2144Z-210506T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
444 PM CDT Thu May 6 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Dickson County in Middle Tennessee...
  Southeastern Montgomery County in Middle Tennessee...
  Northwestern Williamson County in Middle Tennessee...
  Cheatham County in Middle Tennessee...
  Southeastern Houston County in Middle Tennessee...
  Northern Perry County in Middle Tennessee...
  Central Humphreys County in Middle Tennessee...
  Hickman County in Middle Tennessee...
  Southwestern Robertson County in Middle Tennessee...

* Until 515 PM CDT.

* At 443 PM CDT, severe thunderstorms were located along a line
  extending from 12 miles south of Clarksville to 7 miles northwest
  of Dickson to 13 miles north of Linden, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Dickson, Ashland City, Centerville, Coopertown, White Bluff,
  Kingston Springs, Pegram, McEwen, Burns, Hurricane Mills, Fairview,
  Pleasant View, Charlotte, Lobelville, Vanleer, Slayden, Bon Aqua,
  Primm Springs, Bucksnort and Nunnelly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3577 8798 3583 8797 3589 8793 3613 8766
      3645 8741 3643 8685 3637 8687 3638 8691
      3633 8692 3623 8698 3613 8700 3609 8704
      3604 8704 3605 8705 3601 8704 3585 8717
      3585 8721 3583 8722 3569 8751 3574 8801
TIME...MOT...LOC 2143Z 270DEG 38KT 3639 8727 3612 8749 3580 8793 

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

10

1 follow-up statement

379 
WWUS54 KOHX 062159
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
459 PM CDT Thu May 6 2021

TNC083-085-135-062209-
/O.CAN.KOHX.SV.W.0074.000000T0000Z-210506T2215Z/
Houston TN-Perry TN-Humphreys TN-
459 PM CDT Thu May 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HOUSTON...
NORTHERN PERRY AND CENTRAL HUMPHREYS COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3643 8685 3637 8687 3639 8689 3638 8691
      3633 8692 3623 8698 3613 8700 3609 8704
      3604 8704 3605 8705 3600 8704 3585 8717
      3585 8721 3583 8722 3569 8751 3572 8771
      3584 8765 3611 8742 3644 8722
TIME...MOT...LOC 2159Z 269DEG 38KT 3639 8708 3612 8730 3581 8765 

$$

TNC021-043-081-125-147-187-062215-
/O.CON.KOHX.SV.W.0074.000000T0000Z-210506T2215Z/
Dickson TN-Montgomery TN-Williamson TN-Cheatham TN-Hickman TN-
Robertson TN-
459 PM CDT Thu May 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR DICKSON...SOUTHEASTERN MONTGOMERY...NORTHWESTERN WILLIAMSON...
CHEATHAM...HICKMAN AND SOUTHWESTERN ROBERTSON COUNTIES...

At 459 PM CDT, severe thunderstorms were located along a line
extending from 6 miles west of Coopertown to near Burns to 10 miles
west of Centerville, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Dickson, Ashland City, Centerville, Coopertown, White Bluff, Kingston
Springs, Pegram, Burns, Fairview, Pleasant View, Charlotte, Bon Aqua,
Cheatham Dam, Primm Springs, Lyles, Pinewood and Nunnelly.

This includes the following highways...
 Interstate 40 between mile markers 160 and 191.
 Interstate 24 between mile markers 21 and 31.
 Interstate 840 between mile markers 1 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3643 8685 3637 8687 3639 8689 3638 8691
      3633 8692 3623 8698 3613 8700 3609 8704
      3604 8704 3605 8705 3600 8704 3585 8717
      3585 8721 3583 8722 3569 8751 3572 8771
      3584 8765 3611 8742 3644 8722
TIME...MOT...LOC 2159Z 269DEG 38KT 3639 8708 3612 8730 3581 8765 

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
May 6, 3:44 PM CDT	Special Weather Statement	OHX	Stewart	46 min
May 6, 4:04 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Stewart	26 min
May 6, 4:18 PM CDT	Special Weather Statement	OHX	Dickson, Houston, Humphreys	42 min
May 6, 4:27 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Montgomery, Robertson, Stewart	33 min
May 6, 4:35 PM CDT	Special Weather Statement	OHX	Hickman, Lewis, Perry, Wayne	40 min
May 6, 4:56 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Robertson, Sumner	34 min
May 6, 5:05 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Hickman, Lawrence, Lewis, Marshall, Maury and 2 more	40 min
May 6, 5:09 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Rutherford, Smith and 4 more	36 min
May 6, 5:29 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Sumner, Trousdale	31 min
May 6, 5:42 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Smith, Sumner, Trousdale, Williamson and 1 more	33 min
May 6, 5:45 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Lawrence, Marshall, Maury, Rutherford and 1 more	45 min
May 6, 6:00 PM CDT	Special Weather Statement	OHX	Macon, Trousdale	45 min
May 6, 6:13 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Coffee, DeKalb, Jackson, Putnam, Rutherford and 4 more	47 min
May 6, 6:27 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Grundy, Rutherford, Warren	48 min
May 6, 6:58 PM CDT	Special Weather Statement	OHX	Cumberland, DeKalb, Fentress, Jackson, Overton, Putnam and 3 more	47 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.