Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 29, NWS Nashville, TN

March 27, 20215 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 27, 2021, 6:38 AM CDT for 5 counties in Tennessee. It was in force for 52 min. 3 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: Mar 27, 2021, 6:38 AM CDT (11:38 UTC)
Expired: Mar 27, 2021, 7:30 AM CDT
In force: 52 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Davidson County, TN, Rutherford County, TN, Sumner County, TN, Williamson County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 16 km from the middle of the area, began a volume at 11:38 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
Mar 27, 6:48 AM CDT	HAIL 1	Antioch, TN	REPORTED ON ANDERSON ROAD
Mar 27, 7:09 AM CDT	HAIL 1	Lebanon, TN
Mar 27, 7:15 AM CDT	HAIL 1	1 Ne Lebanon, TN

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 00:00Z, 11.6 hours before the alert went out and 3 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: 1974 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

459 
WUUS54 KOHX 271138
SVROHX
TNC037-149-165-187-189-271230-
/O.NEW.KOHX.SV.W.0029.210327T1138Z-210327T1230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
638 AM CDT Sat Mar 27 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southeastern Davidson County in Middle Tennessee...
  North central Rutherford County in Middle Tennessee...
  Southeastern Sumner County in Middle Tennessee...
  Northeastern Williamson County in Middle Tennessee...
  Northwestern Wilson County in Middle Tennessee...

* Until 730 AM CDT.

* At 638 AM CDT, a severe thunderstorm was located over Oak Hill, or
  7 miles south of Nashville, moving northeast at 40 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Franklin, Gallatin, Lebanon, Hendersonville, Brentwood, La Vergne,
  Mount Juliet, Nolensville, Forest Hills, Oak Hill, Belle Meade,
  Lakewood, Hermitage, Rural Hill, Antioch, Belinda City, Berry Hill,
  Green Hill, Percy Priest Lake and Gladeville.

This includes the following highways...
 Interstate 40 between mile markers 210 and 242.
 Interstate 65 between mile markers 69 and 82.
 Interstate 24 between mile markers 49 and 62.
 Interstate 840 between mile markers 68 and 76.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3594 8680 3607 8691 3642 8639 3617 8619
TIME...MOT...LOC 1138Z 238DEG 33KT 3606 8679 

HAIL...1.00IN
WIND...<50MPH
 
$$

Shamburger

1 follow-up statement

030 
WWUS54 KOHX 271149
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
649 AM CDT Sat Mar 27 2021

TNC187-271159-
/O.CAN.KOHX.SV.W.0029.000000T0000Z-210327T1230Z/
Williamson TN-
649 AM CDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WILLIAMSON 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 3642 8639 3617 8619 3600 8663 3605 8682
      3610 8687
TIME...MOT...LOC 1149Z 240DEG 34KT 3610 8666 

$$

TNC037-149-165-189-271230-
/O.CON.KOHX.SV.W.0029.000000T0000Z-210327T1230Z/
Davidson TN-Rutherford TN-Sumner TN-Wilson TN-
649 AM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 AM CDT
FOR SOUTHEASTERN DAVIDSON...NORTH CENTRAL RUTHERFORD...SOUTHEASTERN
SUMNER AND NORTHWESTERN WILSON COUNTIES...

At 649 AM CDT, a severe thunderstorm was located near Antioch, or 8
miles southeast of Nashville, moving northeast at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Gallatin, Lebanon, Hendersonville, La Vergne, Mount Juliet, Forest
Hills, Oak Hill, Belle Meade, Lakewood, Hermitage, Rural Hill,
Antioch, Belinda City, Berry Hill, Green Hill, Percy Priest Lake,
Gladeville and Bledsoe Creek State Park.

This includes the following highways...
 Interstate 40 between mile markers 210 and 242.
 Interstate 65 between mile markers 75 and 82.
 Interstate 24 between mile markers 49 and 63.
 Interstate 840 between mile markers 68 and 76.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3642 8639 3617 8619 3600 8663 3605 8682
      3610 8687
TIME...MOT...LOC 1149Z 240DEG 34KT 3610 8666 

HAIL...1.00IN
WIND...<50MPH
 
$$

Shamburger

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 26, 8:18 PM CDT	River Flood Advisory	OHX	Perry	26 hr
Mar 27, 4:23 AM CDT	Special Weather Statement	OHX	Hickman, Lewis, Perry	37 min
Mar 27, 4:56 AM CDT	Special Weather Statement	OHX	Dickson, Hickman, Houston, Humphreys	49 min
Mar 27, 4:59 AM CDT	Special Weather Statement	OHX	Lewis	46 min
Mar 27, 5:12 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Perry	37 min
Mar 27, 5:29 AM CDT	Special Weather Statement	OHX	Cheatham, Davidson	31 min
Mar 27, 5:48 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Maury, Williamson	27 min
Mar 27, 5:52 AM CDT	Special Weather Statement	OHX	DeKalb	38 min
Mar 27, 6:13 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Williamson	32 min
Mar 27, 6:17 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Humphreys, Williamson	29 min
Mar 27, 6:18 AM CDT	Special Weather Statement	OHX	Macon, Robertson, Sumner, Trousdale	27 min
Mar 27, 6:22 AM CDT	Special Weather Statement	OHX	Jackson	38 min
Mar 27, 6:23 AM CDT	Special Weather Statement	OHX	Cumberland, White	52 min
Mar 27, 6:42 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Maury, Sumner and 1 more	48 min
Mar 27, 6:53 AM CDT	Special Weather Statement	OHX	Cumberland, Putnam, White	52 min
Mar 27, 7:19 AM CDT	Severe Thunderstorm Warning	OHX	Jackson, Macon, Smith, Trousdale, Wilson	41 min
Mar 27, 7:21 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson, Wilson	39 min
Mar 27, 7:36 AM CDT	Areal Flood Advisory	OHX	Cheatham, Dickson, Hickman, Humphreys, Perry, Williamson	3 hr
Mar 27, 7:42 AM CDT	Special Weather Statement	OHX	Smith, Williamson, Wilson	48 min
Mar 27, 7:57 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Overton, Putnam, Smith	33 min
Mar 27, 8:02 AM CDT	Severe Thunderstorm Warning	OHX	Maury, Rutherford, Williamson	43 min
Mar 27, 8:10 AM CDT	Areal Flood Advisory	OHX	Hickman, Lewis, Maury, Perry, Wayne, Williamson	3 hr
Mar 27, 8:26 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Fentress, Overton, Pickett	34 min
Mar 27, 8:29 AM CDT	Areal Flood Advisory	OHX	Cannon, Clay, Davidson, DeKalb, Jackson, Macon and 9 more	3 hr
Mar 27, 8:39 AM CDT	Special Weather Statement	OHX	Fentress, Overton, Putnam	51 min
Mar 27, 8:41 AM CDT	Severe Thunderstorm Warning	OHX	Fentress, Overton, Putnam	34 min
Mar 27, 8:59 AM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	16 min
Mar 27, 10:33 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lewis, Maury	42 min
Mar 27, 11:08 AM CDT	Special Weather Statement	OHX	Bedford, Maury	52 min
Mar 27, 11:19 AM CDT	Areal Flood Advisory	OHX	Bedford, Giles, Hickman, Lawrence, Lewis, Marshall and 5 more	3 hr
Mar 27, 11:42 AM CDT	River Flood Advisory	OHX	Hickman	10 hr
Mar 27, 11:42 AM CDT	River Flood Advisory	OHX	Humphreys	4 days
Mar 27, 11:42 AM CDT	River Flood Advisory	OHX	Maury	15 hr
Mar 27, 11:51 AM CDT	Special Weather Statement	OHX	Bedford	39 min
Mar 27, 12:14 PM CDT	Flash Flood Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	3 hr
Mar 27, 12:41 PM CDT	River Flood Advisory	OHX	Hickman	12 hr
Mar 27, 12:42 PM CDT	River Flood Advisory	OHX	Sumner, Trousdale, Wilson	23 hr
Mar 27, 12:53 PM CDT	Special Weather Statement	OHX	Bedford, Marshall	52 min
Mar 27, 1:15 PM CDT	Flash Flood Warning	OHX	Bedford, Giles, Marshall, Maury, Rutherford	3 hr
Mar 27, 1:32 PM CDT	Special Weather Statement	OHX	Coffee	43 min
Mar 27, 2:04 PM CDT	Areal Flood Advisory	OHX	Giles, Lawrence, Wayne	3 hr
Mar 27, 2:37 PM CDT	River Flood Warning	OHX	Cheatham	52 hr
Mar 27, 2:37 PM CDT	River Flood Warning	OHX	Davidson, Williamson	47 hr
Mar 27, 2:37 PM CDT	River Flood Warning	OHX	Williamson	48 hr
Mar 27, 3:30 PM CDT	River Flood Advisory	OHX	Stewart	31 hr
Mar 27, 3:30 PM CDT	River Flood Advisory	OHX	Montgomery	31 hr
Mar 27, 3:30 PM CDT	River Flood Advisory	OHX	Davidson	12 hr
Mar 27, 4:14 PM CDT	Special Weather Statement	OHX	Cumberland	46 min
Mar 27, 4:45 PM CDT	River Flood Advisory	OHX	Bedford	11 hr
Mar 27, 4:54 PM CDT	Tornado Warning	OHX	Hickman, Perry	36 min
Mar 27, 5:17 PM CDT	Tornado Warning	OHX	Hickman, Perry	28 min
Mar 27, 5:33 PM CDT	Tornado Warning	OHX	Hickman, Lewis, Perry	27 min
Mar 27, 5:39 PM CDT	Areal Flood Advisory	OHX	Hickman, Lewis, Perry	3 hr
Mar 27, 5:39 PM CDT	Tornado Warning	OHX	Hickman, Perry	36 min
Mar 27, 5:52 PM CDT	Special Weather Statement	OHX	Clay, Fentress, Overton, Pickett	38 min
Mar 27, 6:00 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury	45 min
Mar 27, 6:04 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress	11 min
Mar 27, 6:09 PM CDT	Flash Flood Warning	OHX	Hickman, Lewis, Maury, Perry	3 hr
Mar 27, 6:18 PM CDT	Severe Thunderstorm Warning	OHX	Maury, Williamson	42 min
Mar 27, 6:28 PM CDT	Special Weather Statement	OHX	Fentress	17 min
Mar 27, 6:38 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury, Rutherford, Williamson	22 min
Mar 27, 6:44 PM CDT	Flash Flood Warning	OHX	Maury, Williamson	3 hr
Mar 27, 6:59 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	46 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.