Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 139, NWS Nashville, TN

October 6, 2021Fentress County, Pickett County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Oct 6, 2021, 7:44 PM CDT for Fentress County, Pickett County, Tennessee. It was in force for 26 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: Oct 6, 2021, 7:44 PM CDT (00:44 UTC)
Expired: Oct 6, 2021, 8:10 PM CDT
In force: 26 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Fentress County, TN, Pickett County, TN

The radar

The Knoxville radar (KMRX), 142 km from the middle of the area, began a volume at 00:44 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 00:00Z, 0.7 hours before the alert went out and 157 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: 595 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 871 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

As transmitted.

070 
WUUS54 KOHX 070044
SVROHX
TNC049-137-070130-
/O.NEW.KOHX.SV.W.0139.211007T0044Z-211007T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
744 PM CDT Wed Oct 6 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Northeastern Pickett County in Middle Tennessee...
  Northwestern Fentress County in Middle Tennessee...

* Until 830 PM CDT.

* At 743 PM CDT, a severe thunderstorm was located near Pall Mall, 
  moving north at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Jamestown and Pall Mall. 

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 3660 8481 3643 8484 3643 8507 3662 8510
TIME...MOT...LOC 0043Z 178DEG 14KT 3651 8496 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Shamburger

1 follow-up statement

697 
WWUS54 KOHX 070110
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
810 PM CDT Wed Oct 6 2021

TNC049-137-070120-
/O.CAN.KOHX.SV.W.0139.000000T0000Z-211007T0130Z/
Pickett TN-Fentress TN-
810 PM CDT Wed Oct 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PICKETT AND
NORTHWESTERN FENTRESS COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Nashville.

LAT...LON 3660 8481 3643 8484 3643 8507 3662 8510
TIME...MOT...LOC 0109Z 178DEG 14KT 3662 8496 

$$

Shamburger

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 6, 7:04 PM CDT	Special Weather Statement	OHX	Rutherford	41 min
Oct 6, 7:11 PM CDT	Areal Flood Advisory	OHX	Cumberland, Fentress, Pickett	3 hr
Oct 6, 7:12 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman	33 min
Oct 6, 7:14 PM CDT	Tornado Warning	OHX	Fentress	31 min
Oct 6, 7:16 PM CDT	Areal Flood Advisory	OHX	Putnam, White	3 hr
Oct 6, 7:22 PM CDT	Areal Flood Advisory	OHX	DeKalb, Warren, White	3 hr
Oct 6, 7:32 PM CDT	Areal Flood Advisory	OHX	Humphreys, Perry	3 hr
Oct 6, 7:44 PM CDT	Areal Flood Advisory	OHX	Bedford, Rutherford	3 hr
Oct 6, 7:48 PM CDT	Flash Flood Warning	OHX	Giles	5 hr
Oct 6, 7:54 PM CDT	Special Weather Statement	OHX	Coffee	51 min
Oct 6, 8:07 PM CDT	Areal Flood Advisory	OHX	Davidson, Maury, Williamson	113 min
Oct 6, 8:17 PM CDT	Special Weather Statement	OHX	Humphreys	28 min
Oct 6, 8:28 PM CDT	Areal Flood Advisory	OHX	Humphreys	4 hr
Oct 6, 8:52 PM CDT	Flash Flood Warning	OHX	Cumberland, Fentress, Overton, Pickett, Putnam, White	3 hr
Oct 6, 8:56 PM CDT	Flash Flood Warning	OHX	Humphreys, Perry	4 hr
Oct 6, 8:59 PM CDT	Flash Flood Warning	OHX	Perry, Wayne	4 hr
Oct 6, 9:15 PM CDT	Areal Flood Advisory	OHX	Coffee, Grundy, Warren	3 hr
Oct 6, 10:24 PM CDT	Flash Flood Warning	OHX	Bedford	3 hr
Oct 6, 10:40 PM CDT	Areal Flood Advisory	OHX	Houston, Humphreys, Montgomery	3 hr
Oct 6, 10:56 PM CDT	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, Rutherford	3 hr
Oct 6, 10:57 PM CDT	Special Weather Statement	OHX	Cannon	33 min
Oct 6, 11:35 PM CDT	Areal Flood Advisory	OHX	Cannon, DeKalb, Rutherford, Smith, Wilson	3 hr
Oct 7, 12:24 AM CDT	Areal Flood Advisory	OHX	DeKalb, Jackson, Putnam, Smith, Trousdale, Wilson	2 hr
Oct 7, 1:45 AM CDT	River Flood Advisory	OHX	Bedford	8 hr
Oct 7, 9:29 AM CDT	River Flood Advisory	OHX	Perry	20 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.