Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 165, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Dec 11, 2021, 6:58 AM CST for 4 counties in Tennessee. It was in force for 32 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
- Dec 11, 2021, 6:58 AM CST (12:58 UTC)
- Expired
- Dec 11, 2021, 7:30 AM CST
- In force
- 32 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bedford County, TN, Coffee County, TN, Grundy County, TN, Warren County, TN
The radar
The Northeast Alabama radar (KHTX), 49 km from the middle of the area, began a volume at 12:57 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 |
|---|---|---|---|
| Dec 11, 3:41 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 1.0 hours before the alert went out and 251 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.
- Mixed-layer CAPE
- 245 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 703 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 325 m²/s²
- 0-3 km storm-relative helicity
- 371 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.8
The text
As transmitted.
063
WUUS54 KOHX 111258
SVROHX
TNC003-031-061-177-111330-
/O.NEW.KOHX.SV.W.0165.211211T1258Z-211211T1330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
658 AM CST Sat Dec 11 2021
The National Weather Service in Nashville has issued a
* Severe Thunderstorm Warning for...
Southwestern Warren County in Middle Tennessee...
Coffee County in Middle Tennessee...
East central Bedford County in Middle Tennessee...
Northwestern Grundy County in Middle Tennessee...
* Until 730 AM CST.
* At 658 AM CST, a severe thunderstorm was located over Tullahoma, or
8 miles southwest of Manchester, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Manchester, Tullahoma, Normandy, Viola, Hillsboro, Pelham, Arnold
AFB and Woods Reservoir.
This includes Interstate 24 between mile markers 109 and 128.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 AM CST for Middle
Tennessee.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 1100 AM CST for Middle
Tennessee.
&&
LAT...LON 3532 8598 3531 8600 3534 8603 3536 8615
3535 8616 3534 8620 3535 8621 3534 8626
3535 8624 3537 8628 3538 8625 3539 8628
3541 8625 3541 8628 3539 8630 3546 8632
3560 8581 3545 8580 3529 8585 3529 8593
TIME...MOT...LOC 1258Z 258DEG 40KT 3540 8621
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
101 follow-up statement
312
WWUS54 KOHX 111316
SVSOHX
Severe Weather Statement
National Weather Service Nashville TN
716 AM CST Sat Dec 11 2021
TNC003-111325-
/O.CAN.KOHX.SV.W.0165.000000T0000Z-211211T1330Z/
Bedford TN-
716 AM CST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BEDFORD COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 AM CST for Middle
Tennessee.
LAT...LON 3532 8598 3531 8600 3534 8603 3536 8615
3538 8618 3550 8618 3560 8581 3545 8580
3529 8585 3529 8593
TIME...MOT...LOC 1315Z 258DEG 40KT 3544 8598
$$
TNC031-061-177-111330-
/O.CON.KOHX.SV.W.0165.000000T0000Z-211211T1330Z/
Warren TN-Coffee TN-Grundy TN-
716 AM CST Sat Dec 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 AM CST
FOR SOUTHWESTERN WARREN...SOUTHEASTERN COFFEE AND NORTHWESTERN GRUNDY
COUNTIES...
At 715 AM CST, a severe thunderstorm was located near Manchester,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Manchester, Viola, Pelham, Hillsboro, Arnold AFB and Woods Reservoir.
This includes Interstate 24 between mile markers 108 and 128.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 AM CST for Middle
Tennessee.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3532 8598 3531 8600 3534 8603 3536 8615
3538 8618 3550 8618 3560 8581 3545 8580
3529 8585 3529 8593
TIME...MOT...LOC 1315Z 258DEG 40KT 3544 8598
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
10The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 11:29 PM CST | Tornado Warning | OHX | Stewart | 46 min |
| Dec 11, 12:03 AM CST | Tornado Warning | OHX | Montgomery, Stewart | 16 min |
| Dec 11, 12:19 AM CST | Severe Thunderstorm Warning | OHX | Montgomery, Stewart | 41 min |
| Dec 11, 1:28 AM CST | Severe Thunderstorm Warning | OHX | Stewart | 21 min |
| Dec 11, 1:47 AM CST | Severe Thunderstorm Warning | OHX | Dickson, Hickman, Houston, Humphreys, Lewis, Montgomery and 2 more | 73 min |
| Dec 11, 2:03 AM CST | Tornado Warning | OHX | Houston, Humphreys, Stewart | 27 min |
| Dec 11, 2:07 AM CST | Tornado Warning | OHX | Dickson, Hickman, Humphreys, Perry | 38 min |
| Dec 11, 2:23 AM CST | Tornado Warning | OHX | Dickson, Houston, Montgomery, Stewart | 37 min |
| Dec 11, 2:38 AM CST | Tornado Warning | OHX | Dickson, Hickman, Humphreys | 37 min |
| Dec 11, 2:39 AM CST | Tornado Warning | OHX | Cheatham, Dickson, Montgomery | 14 min |
| Dec 11, 2:47 AM CST | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Dickson, Hickman, Lewis, Maury and 5 more | 58 min |
| Dec 11, 2:58 AM CST | Tornado Warning | OHX | Cheatham, Davidson, Dickson, Williamson | 32 min |
| Dec 11, 2:59 AM CST | Tornado Warning | OHX | Davidson, Williamson | 31 min |
| Dec 11, 3:19 AM CST | Severe Thunderstorm Warning | OHX | Davidson, Hickman, Lewis, Marshall, Maury, Robertson and 5 more | 41 min |
| Dec 11, 3:21 AM CST | Tornado Warning | OHX | Davidson, Sumner, Wilson | 39 min |
| Dec 11, 3:29 AM CST | Severe Thunderstorm Warning | OHX | Davidson, Rutherford, Smith, Sumner, Trousdale, Williamson and 1 more | 46 min |
| Dec 11, 3:33 AM CST | Tornado Warning | OHX | Davidson, Macon, Smith, Sumner, Trousdale, Wilson | 42 min |
| Dec 11, 3:46 AM CST | Tornado Warning | OHX | Clay, Macon, Sumner, Trousdale | 44 min |
| Dec 11, 3:48 AM CST | Severe Thunderstorm Warning | OHX | Lewis, Perry, Wayne | 42 min |
| Dec 11, 3:50 AM CST | Severe Thunderstorm Warning | OHX | Clay, DeKalb, Jackson, Macon, Putnam, Smith and 3 more | 17 min |
| Dec 11, 3:56 AM CST | Tornado Warning | OHX | Lewis, Perry, Wayne | 13 min |
| Dec 11, 4:07 AM CST | Tornado Warning | OHX | Clay, Jackson, Macon, Overton, Smith, Trousdale | 38 min |
| Dec 11, 4:11 AM CST | Severe Thunderstorm Warning | OHX | Clay, Fentress, Jackson, Macon, Overton, Pickett and 4 more | 34 min |
| Dec 11, 4:33 AM CST | Tornado Warning | OHX | Clay, Fentress, Overton, Pickett | 42 min |
| Dec 11, 5:01 AM CST | Severe Thunderstorm Warning | OHX | Giles, Lawrence, Lewis, Marshall, Maury | 29 min |
| Dec 11, 5:21 AM CST | Severe Thunderstorm Warning | OHX | Overton, Putnam | 27 min |
| Dec 11, 5:39 AM CST | Severe Thunderstorm Warning | OHX | Giles, Lawrence, Wayne | 36 min |
| Dec 11, 5:56 AM CST | Severe Thunderstorm Warning | OHX | Giles, Lawrence, Marshall, Maury | 34 min |
| Dec 11, 6:13 AM CST | Tornado Warning | OHX | Giles | 15 min |
| Dec 11, 7:22 AM CST | Severe Thunderstorm Warning | OHX | Coffee, Grundy | 38 min |
| Dec 11, 7:35 AM CST | Tornado Warning | OHX | Grundy | 25 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.