Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 83, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 28, 2021, 6:11 PM EDT for Claiborne County, Grainger County, Union County, Tennessee. It was in force for 49 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
- Jun 28, 2021, 6:11 PM EDT (22:11 UTC)
- Expired
- Jun 28, 2021, 7:00 PM EDT
- In force
- 49 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Claiborne County, TN, Grainger County, TN, Union County, TN
The radar
The Knoxville radar (KMRX), 44 km from the middle of the area, began a volume at 22:14 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 |
|---|---|---|---|
| Jun 28, 6:25 PM EDT | TSTM WND DMG | Tazewell, TN | SEVERAL TREES DOWN NEAR TAZEWELL. |
| Jun 28, 6:44 PM EDT | TSTM WND DMG | 1 Ssw Sandlick, TN | SEVERAL TREES DOWN. |
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, 10.2 hours before the alert went out and 267 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
- 78 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 1282 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
624
WUUS54 KMRX 282211
SVRMRX
TNC025-057-173-282300-
/O.NEW.KMRX.SV.W.0083.210628T2211Z-210628T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
611 PM EDT Mon Jun 28 2021
The National Weather Service in Morristown has issued a
* Severe Thunderstorm Warning for...
Central Claiborne County in east Tennessee...
Northeastern Union County in east Tennessee...
Northwestern Grainger County in east Tennessee...
* Until 700 PM EDT.
* At 611 PM EDT, a severe thunderstorm was located over New Tazewell,
or 11 miles north of Rutledge, moving northwest at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
New Tazewell, Tazewell, Harrogate, Springdale, Lone Mountain,
Cumberland Gap, Arthur, Powell River Preserve, Sharps Chapel and
Sandlick.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3650 8348 3628 8360 3635 8387 3658 8374
3658 8369 3659 8369 3660 8367 3660 8366
TIME...MOT...LOC 2211Z 112DEG 7KT 3644 8358
HAIL...0.75IN
WIND...60MPH
$$
DH2 follow-up statements
191
WWUS54 KMRX 282231
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
631 PM EDT Mon Jun 28 2021
TNC057-282241-
/O.CAN.KMRX.SV.W.0083.000000T0000Z-210628T2300Z/
Grainger TN-
631 PM EDT Mon Jun 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GRAINGER COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3653 8354 3636 8361 3634 8364 3633 8366
3634 8367 3633 8368 3632 8368 3630 8369
3635 8387 3658 8374 3658 8369 3660 8367
3660 8366
TIME...MOT...LOC 2231Z 112DEG 7KT 3645 8363
$$
TNC025-173-282300-
/O.CON.KMRX.SV.W.0083.000000T0000Z-210628T2300Z/
Claiborne TN-Union TN-
631 PM EDT Mon Jun 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL CLAIBORNE AND NORTHEASTERN UNION COUNTIES...
At 631 PM EDT, a severe thunderstorm was located over New Tazewell,
or 12 miles southeast of Middlesboro, moving west at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
New Tazewell, Tazewell, Harrogate, Springdale, Cumberland Gap,
Arthur, Powell River Preserve, Sharps Chapel and Sandlick.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3653 8354 3636 8361 3634 8364 3633 8366
3634 8367 3633 8368 3632 8368 3630 8369
3635 8387 3658 8374 3658 8369 3660 8367
3660 8366
TIME...MOT...LOC 2231Z 112DEG 7KT 3645 8363
HAIL...0.75IN
WIND...60MPH
$$
DH569
WWUS54 KMRX 282246
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
646 PM EDT Mon Jun 28 2021
TNC025-173-282300-
/O.CON.KMRX.SV.W.0083.000000T0000Z-210628T2300Z/
Claiborne TN-Union TN-
646 PM EDT Mon Jun 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL CLAIBORNE AND NORTHEASTERN UNION COUNTIES...
At 646 PM EDT, a severe thunderstorm was located near New Tazewell,
or 10 miles south of Middlesboro, moving west at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Harrogate, Springdale, Cumberland Gap, Arthur, Sharps Chapel and
Sandlick.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3657 8361 3638 8366 3635 8367 3634 8367
3633 8368 3632 8368 3630 8369 3635 8387
3658 8374 3658 8369 3660 8367 3660 8366
TIME...MOT...LOC 2246Z 112DEG 7KT 3646 8366
HAIL...0.75IN
WIND...60MPH
$$
DHThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 3:33 PM EDT | Special Weather Statement | MRX | Cocke | 42 min |
| Jun 28, 4:11 PM EDT | Special Weather Statement | MRX | Monroe | 49 min |
| Jun 28, 4:21 PM EDT | Severe Thunderstorm Warning | MRX | McMinn, Monroe | 39 min |
| Jun 28, 4:57 PM EDT | Special Weather Statement | MRX | Monroe | 63 min |
| Jun 28, 5:19 PM EDT | Special Weather Statement | MRX | Roane | 41 min |
| Jun 28, 6:06 PM EDT | Special Weather Statement | MRX | Knox | 39 min |
| Jun 28, 6:34 PM EDT | Severe Thunderstorm Warning | MRX | Union | 41 min |
| Jun 28, 6:53 PM EDT | Special Weather Statement | MRX | Claiborne | 52 min |
| Jun 28, 6:57 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Knox, Union | 48 min |
| Jun 28, 7:14 PM EDT | Special Weather Statement | MRX | Campbell | 46 min |
| Jun 28, 7:44 PM EDT | Special Weather Statement | MRX | Anderson, Campbell | 61 min |
| Jun 28, 7:53 PM EDT | Severe Thunderstorm Warning | MRX | Campbell, Scott | 52 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.