Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 63, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 13, 2021, 9:09 PM EDT for Campbell County, Scott County, Tennessee. It was in force for 36 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
- Jun 13, 2021, 9:09 PM EDT (01:09 UTC)
- Expired
- Jun 13, 2021, 9:45 PM EDT
- In force
- 36 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Campbell County, TN, Scott County, TN
The radar
The Knoxville radar (KMRX), 86 km from the middle of the area, began a volume at 01:10 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, 1.2 hours before the alert went out and 215 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
- 1471 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1759 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
620
WUUS54 KMRX 140109
SVRMRX
TNC013-151-140145-
/O.NEW.KMRX.SV.W.0063.210614T0109Z-210614T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
909 PM EDT Sun Jun 13 2021
The National Weather Service in Morristown has issued a
* Severe Thunderstorm Warning for...
Northwestern Campbell County in east Tennessee...
Northeastern Scott County in east Tennessee...
* Until 945 PM EDT.
* At 908 PM EDT, a severe thunderstorm was located over Hollyhill, or
8 miles southeast of Whitley City, moving south at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Oneida, Huntsville, Jellico, Winfield, Elk Valley, Ketchen and
Indian Mountain State Park.
This includes Interstate 75 in Tennessee between mile markers 146 and
160.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3659 8412 3647 8405 3640 8447 3660 8448
TIME...MOT...LOC 0108Z 347DEG 20KT 3664 8435
HAIL...1.00IN
WIND...60MPH
$$
BW1 follow-up statement
783
WWUS54 KMRX 140130
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
930 PM EDT Sun Jun 13 2021
TNC013-151-140145-
/O.CON.KMRX.SV.W.0063.000000T0000Z-210614T0145Z/
Campbell TN-Scott TN-
930 PM EDT Sun Jun 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR NORTHWESTERN CAMPBELL AND NORTHEASTERN SCOTT COUNTIES...
At 930 PM EDT, a severe thunderstorm was located 7 miles southwest of
Zion Hill, or 10 miles east of Oneida, moving south at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Oneida, Huntsville, Winfield, Elk Valley and Ketchen.
This includes Interstate 75 in Tennessee between mile markers 146 and
154.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3659 8421 3645 8415 3640 8447 3660 8448
TIME...MOT...LOC 0130Z 347DEG 20KT 3652 8432
HAIL...1.00IN
WIND...60MPH
$$
BWThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 9:39 PM EDT | Special Weather Statement | MRX | Scott | 36 min |
| Jun 13, 10:00 PM EDT | Special Weather Statement | MRX | Hamilton | 30 min |
| Jun 13, 10:26 PM EDT | Special Weather Statement | MRX | Marion | 19 min |
| Jun 13, 10:37 PM EDT | Special Weather Statement | MRX | Hawkins | 23 min |
| Jun 13, 10:59 PM EDT | Special Weather Statement | MRX | Greene | 31 min |
| Jun 13, 11:27 PM EDT | Special Weather Statement | MRX | Greene | 48 min |
| Jun 14, 12:22 AM EDT | Special Weather Statement | MRX | Hawkins | 23 min |
| Jun 14, 12:56 AM EDT | Special Weather Statement | MRX | Union | 34 min |
| Jun 14, 1:09 AM EDT | Special Weather Statement | MRX | Union | 36 min |
| Jun 14, 1:35 AM EDT | Special Weather Statement | MRX | Loudon | 25 min |
| Jun 14, 2:09 AM EDT | Special Weather Statement | MRX | Knox | 36 min |
| Jun 14, 2:22 AM EDT | Special Weather Statement | MRX | Hamblen | 38 min |
| Jun 14, 2:31 AM EDT | Severe Thunderstorm Warning | MRX | Blount, Knox, Loudon | 32 min |
| Jun 14, 3:02 AM EDT | Special Weather Statement | MRX | Marion | 28 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.