Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 20, NWS Nashville, TN

March 25, 2021Lawrence County, Wayne County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 25, 2021, 7:50 PM CDT for Lawrence County, Wayne County, Tennessee. It was in force for 40 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 25, 2021, 7:50 PM CDT (00:50 UTC)
Expired: Mar 25, 2021, 8:30 PM CDT
In force: 40 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lawrence County, TN, Wayne County, TN

The radar

The Northeast Alabama radar (KHTX), 139 km from the middle of the area, began a volume at 00:52 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 25, 11:26 AM CDT	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.8 hours before the alert went out and 144 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: 290 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 615 m above ground
0-6 km bulk shear: 85 kt
0-1 km storm-relative helicity: 657 m²/s²
0-3 km storm-relative helicity: 631 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 7.4

Open this sounding in Storm Lab

The text

As transmitted.

109 
WUUS54 KOHX 260050
SVROHX
TNC099-181-260130-
/O.NEW.KOHX.SV.W.0020.210326T0050Z-210326T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
750 PM CDT Thu Mar 25 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southern Wayne County in Middle Tennessee...
  Lawrence County in Middle Tennessee...

* Until 830 PM CDT.

* At 750 PM CDT, a severe thunderstorm was located 10 miles southwest
  of Collinwood, or 18 miles northwest of Florence, moving east at 50
  mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Lawrenceburg, Loretto, Collinwood, St. Joseph, Ethridge, Leoma,
  Westpoint, Iron City and Cypress Inn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3501 8794 3510 8798 3538 8727 3523 8722
      3507 8722 3500 8755
TIME...MOT...LOC 0050Z 248DEG 43KT 3505 8785 

HAIL...1.00IN
WIND...60MPH
 
$$

10

2 follow-up statements

593 
WWUS54 KOHX 260105
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
805 PM CDT Thu Mar 25 2021

TNC099-181-260130-
/O.CON.KOHX.SV.W.0020.000000T0000Z-210326T0130Z/
Wayne TN-Lawrence TN-
805 PM CDT Thu Mar 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHEASTERN WAYNE AND LAWRENCE COUNTIES...

At 805 PM CDT, a severe thunderstorm was located near Collinwood, or
15 miles southeast of Waynesboro, moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Lawrenceburg, Loretto, St. Joseph, Ethridge, Leoma, Westpoint and
Iron City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for Middle
Tennessee.

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

&&

LAT...LON 3501 8773 3521 8770 3538 8727 3523 8722
      3507 8722 3500 8755
TIME...MOT...LOC 0105Z 248DEG 43KT 3512 8764 

HAIL...1.00IN
WIND...60MPH
 
$$

10

157 
WWUS54 KOHX 260115
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
815 PM CDT Thu Mar 25 2021

TNC181-260125-
/O.CAN.KOHX.SV.W.0020.000000T0000Z-210326T0130Z/
Wayne TN-
815 PM CDT Thu Mar 25 2021

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

A Tornado Watch remains in effect until 100 AM CDT for Middle
Tennessee.

LAT...LON 3503 8761 3504 8758 3505 8758 3506 8759
      3514 8759 3516 8757 3526 8758 3538 8727
      3523 8722 3507 8722 3500 8754 3500 8761
TIME...MOT...LOC 0115Z 248DEG 43KT 3517 8750 

$$

TNC099-260130-
/O.CON.KOHX.SV.W.0020.000000T0000Z-210326T0130Z/
Lawrence TN-
815 PM CDT Thu Mar 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR LAWRENCE COUNTY...

At 815 PM CDT, a severe thunderstorm was located near Loretto, or 11
miles southwest of Lawrenceburg, moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Lawrenceburg, Loretto, St. Joseph, Ethridge, Leoma, Westpoint and
Iron City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for Middle
Tennessee.

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

&&

LAT...LON 3503 8761 3504 8758 3505 8758 3506 8759
      3514 8759 3516 8757 3526 8758 3538 8727
      3523 8722 3507 8722 3500 8754 3500 8761
TIME...MOT...LOC 0115Z 248DEG 43KT 3517 8750 

HAIL...1.00IN
WIND...60MPH
 
$$

10

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 7:04 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury, Williamson	26 min
Mar 25, 7:04 PM CDT	Tornado Warning	OHX	Lewis, Perry, Wayne	41 min
Mar 25, 7:12 PM CDT	Areal Flood Advisory	OHX	Lewis, Perry, Wayne	2 hr
Mar 25, 7:27 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury, Williamson	9 min
Mar 25, 7:36 PM CDT	Tornado Warning	OHX	Lawrence, Lewis, Maury, Wayne	39 min
Mar 25, 7:39 PM CDT	Special Weather Statement	OHX	Trousdale, Williamson	36 min
Mar 25, 7:52 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Williamson	38 min
Mar 25, 8:13 PM CDT	Tornado Warning	OHX	Davidson, DeKalb, Rutherford, Smith, Williamson, Wilson	32 min
Mar 25, 8:35 PM CDT	Tornado Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	25 min
Mar 25, 8:41 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall, Maury, Rutherford	34 min
Mar 25, 8:41 PM CDT	Tornado Warning	OHX	Smith, Trousdale, Wilson	34 min
Mar 25, 8:49 PM CDT	Tornado Warning	OHX	Rutherford	26 min
Mar 25, 9:01 PM CDT	Tornado Warning	OHX	Jackson, Macon, Smith	14 min
Mar 25, 9:09 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Wilson	36 min
Mar 25, 9:40 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam, White	35 min
Mar 25, 9:53 PM CDT	Areal Flood Advisory	OHX	Davidson	3 hr
Mar 25, 9:54 PM CDT	River Flood Advisory	OHX	Davidson	3 hr
Mar 25, 9:57 PM CDT	River Flood Advisory	OHX	Davidson	3 hr
Mar 25, 10:22 PM CDT	Special Weather Statement	OHX	Fentress, Overton, Pickett, White	38 min
Mar 25, 10:37 PM CDT	Special Weather Statement	OHX	Cumberland	38 min
Mar 25, 10:37 PM CDT	Special Weather Statement	OHX	Grundy, Van Buren	23 min
Mar 26, 5:58 PM CDT	Flash Flood Watch	OHX	Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more	42 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.