Alert archive / Tennessee / Tornado Warnings in 2021
Tornado Warning 4, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Apr 8, 2021, 5:56 PM EDT for Scott County, Tennessee. It was in force for 34 min. 2 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
- Apr 8, 2021, 5:56 PM EDT (21:56 UTC)
- Expired
- Apr 8, 2021, 6:30 PM EDT
- In force
- 34 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Scott County, TN
The radar
The Knoxville radar (KMRX), 93 km from the middle of the area, began a volume at 21:56 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 |
|---|---|---|---|
| Apr 8, 6:00 PM EDT | HAIL 1 | 2 S Oneida, TN | QUARTER SIZED HAIL ALONG HIGHWAY 27. |
| Apr 8, 6:20 PM EDT | TORNADO | 2 N Norma, TN | HOMES DESTROYED ON NORMA RD AND STRAIGHT FORK RD. |
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 12:00Z, 9.9 hours before the alert went out and 207 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
- 55 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 626 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 354 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
277
WFUS54 KMRX 082156
TORMRX
TNC151-082230-
/O.NEW.KMRX.TO.W.0004.210408T2156Z-210408T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Morristown TN
556 PM EDT Thu Apr 8 2021
The National Weather Service in Morristown has issued a
* Tornado Warning for...
Northeastern Scott County in east Tennessee...
* Until 630 PM EDT.
* At 556 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Oneida, moving northeast at 35 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This tornadic thunderstorm will remain over mainly rural areas of
northeastern Scott County, including the following locations...
Ketchen and Winfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3659 8426 3657 8426 3656 8425 3653 8425
3652 8426 3651 8429 3651 8433 3650 8434
3649 8434 3640 8451 3649 8460 3660 8449
TIME...MOT...LOC 2156Z 225DEG 30KT 3648 8449
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
DH1 follow-up statement
413
WWUS54 KMRX 082214
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
614 PM EDT Thu Apr 8 2021
TNC151-082230-
/O.CON.KMRX.TO.W.0004.000000T0000Z-210408T2230Z/
Scott TN-
614 PM EDT Thu Apr 8 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR
NORTHEASTERN SCOTT COUNTY...
At 613 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Strunk, or 9 miles northeast of Oneida, moving
northeast at 35 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Oneida, Winfield and Ketchen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3659 8426 3657 8426 3656 8425 3653 8425
3652 8426 3651 8429 3651 8433 3650 8434
3649 8434 3647 8437 3658 8451 3660 8449
TIME...MOT...LOC 2213Z 225DEG 30KT 3658 8436
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
DHThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 3:58 AM EDT | Wind Advisory | MRX | Blount, Carter, Cocke, Greene, Johnson, Monroe and 2 more | 19 hr |
| Apr 8, 4:47 PM EDT | Tornado Warning | MRX | Morgan, Scott | 43 min |
| Apr 8, 5:21 PM EDT | Severe Thunderstorm Warning | MRX | Campbell, Morgan, Scott | 39 min |
| Apr 8, 5:25 PM EDT | Tornado Warning | MRX | Campbell, Morgan, Scott | 35 min |
| Apr 8, 5:51 PM EDT | Tornado Warning | MRX | Campbell, Scott | 39 min |
| Apr 8, 6:16 PM EDT | Severe Thunderstorm Warning | MRX | Campbell, Scott | 44 min |
| Apr 8, 6:22 PM EDT | Tornado Warning | MRX | Campbell, Claiborne, Scott | 53 min |
| Apr 8, 6:44 PM EDT | Tornado Warning | MRX | Campbell, Scott | 46 min |
| Apr 8, 6:50 PM EDT | Severe Thunderstorm Warning | MRX | Campbell, Claiborne | 40 min |
| Apr 8, 6:52 PM EDT | Tornado Warning | MRX | Campbell, Claiborne, Scott | 38 min |
| Apr 8, 7:24 PM EDT | Severe Thunderstorm Warning | MRX | Campbell, Claiborne | 36 min |
Nearby
Tornado Warnings in Tennessee, 2021Every tornado warning in 2021Tornadoes 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.