Alert archive / Virginia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 2, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Mar 18, 2021, 3:19 PM EDT for Lee County, Scott County, Virginia; Claiborne County, Hancock County, Tennessee. It was in force for 41 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
- Mar 18, 2021, 3:19 PM EDT (19:19 UTC)
- Expired
- Mar 18, 2021, 4:00 PM EDT
- In force
- 41 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Claiborne County, TN, Hancock County, TN, Lee County, VA, Scott County, VA
The radar
The Knoxville radar (KMRX), 63 km from the middle of the area, began a volume at 19:21 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 |
|---|---|---|---|
| Mar 18, 3:25 PM EDT | HAIL 1 | 3 Nne Howard Quarter, TN | QUARTER SIZED HAIL NEAR THE CLAIBORNE/HANCOCK COUNTY LINE. |
| Mar 18, 3:25 PM EDT | HAIL 1 | 3 Nne Howard Quarter, TN | QUARTER SIZED HAIL ESTIMATED AT THE CLAIBORNE/HANCOCK COUNTY LINE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.3 hours before the alert went out and 297 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 486 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 470 m²/s²
- 0-3 km storm-relative helicity
- 562 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
374
WUUS54 KMRX 181919
SVRMRX
TNC025-067-VAC105-169-182000-
/O.NEW.KMRX.SV.W.0002.210318T1919Z-210318T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
319 PM EDT Thu Mar 18 2021
The National Weather Service in Morristown has issued a
* Severe Thunderstorm Warning for...
Northeastern Claiborne County in east Tennessee...
Northwestern Hancock County in east Tennessee...
Lee County in southwestern Virginia...
Southwestern Scott County in southwestern Virginia...
* Until 400 PM EDT.
* At 319 PM EDT, a severe thunderstorm was located 7 miles northeast
of Tazewell, or 13 miles west of Sneedville, moving northeast at 35
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...
Sneedville, Jonesville, Pennington Gap, St. Charles, Howard
Quarter, Evanston, Rose Hill, Kyles Ford, Pattonsville and Dryden.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
&&
LAT...LON 3662 8285 3645 8346 3655 8352 3674 8322
3674 8314 3675 8313 3678 8313 3685 8302
3685 8300
TIME...MOT...LOC 1919Z 240DEG 31KT 3651 8345
HAIL...1.00IN
WIND...60MPH
$$
Garuckas2 follow-up statements
901
WWUS54 KMRX 181932
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
332 PM EDT Thu Mar 18 2021
TNC025-VAC169-181942-
/O.CAN.KMRX.SV.W.0002.000000T0000Z-210318T2000Z/
Claiborne TN-Scott VA-
332 PM EDT Thu Mar 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLAIBORNE AND
SOUTHWESTERN SCOTT COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3669 8292 3667 8295 3659 8298 3659 8295
3652 8321 3650 8334 3658 8339 3682 8299
TIME...MOT...LOC 1932Z 244DEG 31KT 3655 8331
$$
TNC067-VAC105-182000-
/O.CON.KMRX.SV.W.0002.000000T0000Z-210318T2000Z/
Hancock TN-Lee VA-
332 PM EDT Thu Mar 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTHWESTERN HANCOCK AND SOUTHEASTERN LEE COUNTIES...
At 332 PM EDT, a severe thunderstorm was located near Sneedville,
moving northeast at 35 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sneedville, Jonesville, Pennington Gap, Kyles Ford, Pattonsville and
Dryden.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 3669 8292 3667 8295 3659 8298 3659 8295
3652 8321 3650 8334 3658 8339 3682 8299
TIME...MOT...LOC 1932Z 244DEG 31KT 3655 8331
HAIL...1.25IN
WIND...60MPH
$$
Garuckas498
WWUS54 KMRX 181945
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
345 PM EDT Thu Mar 18 2021
TNC067-VAC105-182000-
/O.CON.KMRX.SV.W.0002.000000T0000Z-210318T2000Z/
Hancock TN-Lee VA-
345 PM EDT Thu Mar 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTH CENTRAL HANCOCK AND SOUTHEASTERN LEE COUNTIES...
At 344 PM EDT, a severe thunderstorm was located near Sneedville,
moving northeast at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sneedville, Jonesville, Pennington Gap, Pattonsville and Dryden.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 3655 8322 3663 8327 3672 8316 3681 8301
3671 8293 3669 8292 3667 8295 3659 8298
3659 8295 3658 8298
TIME...MOT...LOC 1944Z 240DEG 31KT 3660 8319
HAIL...1.00IN
WIND...60MPH
$$
GaruckasThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 9:30 AM EDT | Special Weather Statement | MRX | Lee | 45 min |
| Mar 18, 11:15 AM EDT | Special Weather Statement | MRX | City of Bristol | 45 min |
| Mar 18, 11:28 AM EDT | Areal Flood Advisory | MRX | Lee, Wise, City of Norton | 3 hr |
| Mar 18, 2:36 PM EDT | Severe Thunderstorm Warning | MRX | Lee | 39 min |
| Mar 18, 3:13 PM EDT | Special Weather Statement | MRX | Lee | 47 min |
| Mar 18, 4:25 PM EDT | Special Weather Statement | MRX | City of Norton | 35 min |
| Mar 18, 4:40 PM EDT | Special Weather Statement | MRX | Russell | 35 min |
| Mar 18, 5:30 PM EDT | Special Weather Statement | MRX | Washington | 30 min |
| Mar 18, 5:56 PM EDT | Special Weather Statement | MRX | Washington | 34 min |
| Mar 18, 7:37 PM EDT | Special Weather Statement | MRX | Washington | 38 min |
| Mar 18, 7:40 PM EDT | Areal Flood Advisory | MRX | Scott | 3 hr |
| Mar 18, 7:42 PM EDT | Severe Thunderstorm Warning | MRX | Washington | 26 min |
| Mar 17, 9:12 PM EDT | Areal Flood Warning | MRX | Bradley, Hamilton, Marion | 6 hr |
| Mar 18, 9:19 AM EDT | Special Weather Statement | MRX | Jefferson | 41 min |
| Mar 18, 9:54 AM EDT | River Flood Warning | MRX | Bledsoe, Marion, Sequatchie | 33 hr |
| Mar 18, 10:35 AM EDT | Areal Flood Advisory | MRX | Blount, Claiborne, Grainger, Hancock, Jefferson, Knox | 3 hr |
| Mar 18, 12:59 PM EDT | Special Weather Statement | MRX | Campbell | 46 min |
| Mar 18, 1:13 PM EDT | Special Weather Statement | MRX | Anderson | 47 min |
| Mar 18, 1:19 PM EDT | Special Weather Statement | MRX | Greene | 41 min |
| Mar 18, 1:42 PM EDT | Special Weather Statement | MRX | Anderson, Union | 48 min |
| Mar 18, 1:52 PM EDT | Special Weather Statement | MRX | Greene, Sullivan, Washington | 53 min |
| Mar 18, 2:07 PM EDT | Special Weather Statement | MRX | Claiborne | 23 min |
| Mar 18, 2:12 PM EDT | Special Weather Statement | MRX | Campbell | 48 min |
| Mar 18, 2:23 PM EDT | Special Weather Statement | MRX | Claiborne | 52 min |
| Mar 18, 3:02 PM EDT | Special Weather Statement | MRX | Knox | 43 min |
| Mar 18, 3:12 PM EDT | Special Weather Statement | MRX | Union | 48 min |
| Mar 18, 4:02 PM EDT | Special Weather Statement | MRX | Campbell | 43 min |
| Mar 18, 4:03 PM EDT | Special Weather Statement | MRX | Claiborne | 27 min |
| Mar 18, 4:14 PM EDT | Special Weather Statement | MRX | Claiborne | 46 min |
| Mar 18, 4:23 PM EDT | Special Weather Statement | MRX | Unicoi | 37 min |
| Mar 18, 4:50 PM EDT | Special Weather Statement | MRX | Carter | 25 min |
| Mar 18, 5:13 PM EDT | Special Weather Statement | MRX | Jefferson | 32 min |
| Mar 18, 6:08 PM EDT | Special Weather Statement | MRX | Hawkins | 37 min |
| Mar 18, 6:41 PM EDT | Special Weather Statement | MRX | Hawkins | 34 min |
| Mar 18, 7:04 PM EDT | Special Weather Statement | MRX | Carter | 26 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2021Severe 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.