Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 83, NWS Nashville, TN

May 9, 20215 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 9, 2021, 6:30 PM CDT for 5 counties in Tennessee. It was in force for 45 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
May 9, 2021, 6:30 PM CDT (23:30 UTC)
Expired
May 9, 2021, 7:15 PM CDT
In force
45 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Lawrence County, TN, Lewis County, TN, Maury County, TN, Perry County, TN, Wayne County, TN

The radar

The Nashville radar (KOHX), 145 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 134 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2021-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2021-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 385 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1018 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
385 m²/s²
0-3 km storm-relative helicity
519 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

725 
WUUS54 KOHX 092330
SVROHX
TNC099-101-119-135-181-100015-
/O.NEW.KOHX.SV.W.0083.210509T2330Z-210510T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
630 PM CDT Sun May 9 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southern Lewis County in Middle Tennessee...
  Northern Wayne County in Middle Tennessee...
  Northern Lawrence County in Middle Tennessee...
  Southwestern Maury County in Middle Tennessee...
  Southern Perry County in Middle Tennessee...

* Until 715 PM CDT.

* At 630 PM CDT, a severe thunderstorm was located 11 miles northeast
  of Olive Hill, or 12 miles northwest of Waynesboro, moving east at
  60 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Lawrenceburg, Waynesboro, Summertown, Clifton, Ethridge, Henryville
  and Flatwoods.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3547 8802 3548 8799 3551 8797 3550 8720
      3530 8721 3529 8723 3528 8721 3521 8722
      3532 8801 3535 8801 3536 8802 3539 8802
      3539 8799 3541 8797 3543 8803 3545 8804
TIME...MOT...LOC 2330Z 275DEG 50KT 3542 8795 

HAIL...0.75IN
WIND...60MPH
 
$$

Schaper
2 follow-up statements
387 
WWUS54 KOHX 092348
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
648 PM CDT Sun May 9 2021

TNC135-092357-
/O.CAN.KOHX.SV.W.0083.000000T0000Z-210510T0015Z/
Perry TN-
648 PM CDT Sun May 9 2021

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

LAT...LON 3529 8777 3549 8774 3548 8772 3550 8771
      3551 8770 3550 8720 3543 8720 3539 8722
      3530 8721 3529 8723 3528 8721 3521 8722
TIME...MOT...LOC 2347Z 275DEG 50KT 3540 8765 

$$

TNC099-101-119-181-100015-
/O.CON.KOHX.SV.W.0083.000000T0000Z-210510T0015Z/
Lewis TN-Wayne TN-Lawrence TN-Maury TN-
648 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHERN LEWIS...NORTHEASTERN WAYNE...NORTHERN LAWRENCE AND
SOUTHWESTERN MAURY COUNTIES...

At 647 PM CDT, a severe thunderstorm was located 7 miles northeast of
Waynesboro, moving east at 60 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Lawrenceburg, Waynesboro, Summertown, Ethridge and Henryville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3529 8777 3549 8774 3548 8772 3550 8771
      3551 8770 3550 8720 3543 8720 3539 8722
      3530 8721 3529 8723 3528 8721 3521 8722
TIME...MOT...LOC 2347Z 275DEG 50KT 3540 8765 

HAIL...0.75IN
WIND...60MPH
 
$$

Schaper
860 
WWUS54 KOHX 100000
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
700 PM CDT Sun May 9 2021

TNC181-100009-
/O.CAN.KOHX.SV.W.0083.000000T0000Z-210510T0015Z/
Wayne TN-
700 PM CDT Sun May 9 2021

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

LAT...LON 3525 8752 3551 8745 3550 8720 3543 8720
      3539 8722 3530 8721 3529 8723 3528 8721
      3521 8722
TIME...MOT...LOC 2359Z 276DEG 53KT 3535 8739 

$$

TNC099-101-119-100015-
/O.CON.KOHX.SV.W.0083.000000T0000Z-210510T0015Z/
Lewis TN-Lawrence TN-Maury TN-
700 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHEASTERN LEWIS...NORTHEASTERN LAWRENCE AND SOUTHWESTERN MAURY
COUNTIES...

At 659 PM CDT, a severe thunderstorm was located near Summertown, or
7 miles northwest of Lawrenceburg, moving east at 60 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Lawrenceburg, Summertown, Ethridge and Henryville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3525 8752 3551 8745 3550 8720 3543 8720
      3539 8722 3530 8721 3529 8723 3528 8721
      3521 8722
TIME...MOT...LOC 2359Z 276DEG 53KT 3535 8739 

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

Schaper

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 2:22 AM CDTWind AdvisoryOHXBedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more17 hr
May 9, 2:28 PM CDTSpecial Weather StatementOHXClay, Macon, Smith, Sumner, Trousdale47 min
May 9, 4:51 PM CDTSpecial Weather StatementOHXHumphreys39 min
May 9, 5:31 PM CDTSpecial Weather StatementOHXHumphreys44 min
May 9, 5:44 PM CDTSpecial Weather StatementOHXClay46 min
May 9, 5:58 PM CDTSpecial Weather StatementOHXHickman32 min
May 9, 6:10 PM CDTSpecial Weather StatementOHXDavidson35 min
May 9, 6:25 PM CDTSpecial Weather StatementOHXLewis35 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2021Every 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.