Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 159, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Dec 11, 2021, 3:50 AM CST for 9 counties in Tennessee. It was in force for 17 min. 7 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
- Dec 11, 2021, 3:50 AM CST (09:50 UTC)
- Expired
- Dec 11, 2021, 4:07 AM CST
- In force
- 17 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Clay County, TN, DeKalb County, TN, Jackson County, TN, Macon County, TN, Putnam County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 53 km from the middle of the area, began a volume at 09:49 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 |
|---|---|---|---|
| Dec 11, 3:54 AM CST | TSTM WND DMG | 7 Se Hartsville, TN | TREE FELL ON CAR ON ROME ROAD IN RIDDLETON. REPORT VIA TWITTER. |
| Dec 11, 3:54 AM CST | TSTM WND DMG | 7 Se Hartsville, TN | TREE FELL ON CAR ON ROME ROAD IN RIDDLETON. TWITTER. |
| Dec 11, 4:04 AM CST | TSTM WND DMG | South Carthage, TN | MULTIPLE TREES DOWN AND STRUCTURAL DAMAGE TO A FEW HOUSES AND BARNS. PARTIAL ROOF TAKEN OFF BUILDING NEAR HWY 70. |
| Dec 11, 4:05 AM CST | TSTM WND DMG | 2 Ene Carthage, TN | TREES UPROOTED AND TWISTED ON HORSESHOE BEND IN ELMWOOD. FACEBOOK REPORT. |
| Dec 11, 4:05 AM CST | TORNADO | 1 Ene South Carthage, TN | THE TORNADO TOUCHED DOWN ON UPPER FERRY ROAD IN CARTHAGE AND MOVED NORTHEAST ALONG THE EAST SIDE OF CARTHAGE UPROOTING SEVERAL SMALL TREES AND SNAPPING LARGE TREE LIMBS. THE STORM CROSSED THE CUMBERLAND RIVER AND CAUSED TREE DAMAGE AND MODERATE ROOF DAMAGE TO |
| Dec 11, 4:12 AM CST | TSTM WND DMG | 8 E Carthage, TN | TREES DOWN IN MULTIPLE AREAS IN JACKSON COUNTY WITH MANY DOWN IN THE GRANVILLE AREA. |
| Dec 11, 4:16 AM CST | TSTM WND DMG | Gainesboro, TN | 40 X 60 FT POLE BARN DESTROYED IN GAINESBORO. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 10, 6:21 PM CST | Tornado Watch | SPC | 10 hr |
| Dec 10, 10:44 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 11, 3:41 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 9.8 hours before the alert went out and 59 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
- 182 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 593 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 391 m²/s²
- 0-3 km storm-relative helicity
- 370 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
277
WUUS54 KOHX 110950
SVROHX
TNC027-041-087-111-141-159-165-169-189-111030-
/O.NEW.KOHX.SV.W.0159.211211T0950Z-211211T1030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
350 AM CST Sat Dec 11 2021
The National Weather Service in Nashville has issued a
* Severe Thunderstorm Warning for...
Smith County in Middle Tennessee...
Northwestern De Kalb County in Middle Tennessee...
Jackson County in Middle Tennessee...
Northeastern Sumner County in Middle Tennessee...
Eastern Wilson County in Middle Tennessee...
Western Clay County in Middle Tennessee...
Macon County in Middle Tennessee...
Trousdale County in Middle Tennessee...
West central Putnam County in Middle Tennessee...
* Until 430 AM CST.
* At 350 AM CST, severe thunderstorms were located along a line
extending from 6 miles northeast of Westmoreland to 8 miles south
of Hartsville to 6 miles east of Walterhill, moving east at 70 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Lafayette, Carthage, Gainesboro, Hartsville, Westmoreland,
Watertown, Baxter, Gordonsville, Red Boiling Springs, Hickman,
South Carthage, Alexandria, Tuckers Crossroads, Whitleyville, Moss,
Bugtussle, Dixon Springs, Pleasant Shade, Cedars Of Lebanon State
Park and Center Hill Lake.
This includes Interstate 40 between mile markers 242 and 272, and
between mile markers 275 and 279.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM CST for Middle
Tennessee. A Tornado Watch also 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 500 AM CST for Middle
Tennessee. A Tornado Watch also remains in effect until 1100 AM CST
for Middle Tennessee.
&&
LAT...LON 3662 8557 3654 8552 3611 8564 3598 8631
3600 8635 3601 8636 3624 8620 3664 8625
TIME...MOT...LOC 0950Z 248DEG 62KT 3664 8618 3627 8613 3600 8626
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
131 follow-up statement
232
WWUS54 KOHX 111007
SVSOHX
Severe Weather Statement
National Weather Service Nashville TN
407 AM CST Sat Dec 11 2021
TNC027-041-087-111-141-159-165-169-189-111017-
/O.CAN.KOHX.SV.W.0159.000000T0000Z-211211T1030Z/
Smith TN-De Kalb TN-Jackson TN-Sumner TN-Wilson TN-Clay TN-Macon TN-
Trousdale TN-Putnam TN-
407 AM CST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SMITH...NORTHWESTERN DE
KALB...JACKSON...NORTHEASTERN SUMNER...EASTERN WILSON...WESTERN
CLAY...MACON...TROUSDALE AND WEST CENTRAL PUTNAM COUNTIES IS
CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with these thunderstorms.
A Tornado Watch remains in effect until 500 AM CST for Middle
Tennessee. A Tornado Watch also remains in effect until 1100 AM CST
for Middle Tennessee.
LAT...LON 3662 8557 3654 8552 3611 8564 3598 8631
3600 8635 3601 8636 3624 8620 3664 8625
TIME...MOT...LOC 1005Z 248DEG 62KT 3674 8586 3637 8582 3610 8595
$$
13The 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, 3:56 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, 6:58 AM CST | Severe Thunderstorm Warning | OHX | Bedford, Coffee, Grundy, Warren | 32 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.