Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS Nashville, TN

March 27, 20214 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 27, 2021, 8:26 AM CDT for 4 counties in Tennessee. It was in force for 34 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 27, 2021, 8:26 AM CDT (13:26 UTC)
Expired: Mar 27, 2021, 9:00 AM CDT
In force: 34 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Clay County, TN, Fentress County, TN, Overton County, TN, Pickett County, TN

The radar

The Nashville radar (KOHX), 114 km from the middle of the area, began a volume at 13:30 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, 1.4 hours before the alert went out and 121 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: 710 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 347 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

945 
WUUS54 KOHX 271326
SVROHX
TNC027-049-133-137-271400-
/O.NEW.KOHX.SV.W.0035.210327T1326Z-210327T1400Z/

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

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Northern Overton County in Middle Tennessee...
  Western Pickett County in Middle Tennessee...
  Eastern Clay County in Middle Tennessee...
  West central Fentress County in Middle Tennessee...

* Until 900 AM CDT.

* At 825 AM CDT, a severe thunderstorm was located near Livingston,
  moving east at 40 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Livingston, Celina, Byrdstown, Dale Hollow Lake, Standing Stone
  State Park and Wolf River Dock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3662 8512 3636 8498 3632 8549 3640 8550
      3645 8555 3651 8557 3663 8529
TIME...MOT...LOC 1325Z 255DEG 33KT 3643 8541 

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

Whitehead

1 follow-up statement

066 
WWUS54 KOHX 271355
SVSOHX

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

TNC027-049-133-137-271405-
/O.EXP.KOHX.SV.W.0035.000000T0000Z-210327T1400Z/
Overton TN-Pickett TN-Clay TN-Fentress TN-
855 AM CDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN OVERTON...WESTERN
PICKETT...EASTERN CLAY AND WEST CENTRAL FENTRESS COUNTIES WILL EXPIRE
AT 900 AM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However heavy rain
is still possible with this thunderstorm.

LAT...LON 3662 8512 3636 8498 3632 8549 3640 8550
      3645 8555 3651 8557 3663 8529
TIME...MOT...LOC 1355Z 255DEG 33KT 3649 8511 

$$

Whitehead

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, 6:38 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Sumner, Williamson, Wilson	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, 8:29 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.