Alert archive / Tennessee / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 71, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 24, 2019, 4:36 PM EDT for 7 counties in Tennessee. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 24, 2019, 4:36 PM EDT (20:36 UTC)
- Expired
- Jun 24, 2019, 5:30 PM EDT
- In force
- 54 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Anderson County, TN, Campbell County, TN, Knox County, TN, Loudon County, TN, Morgan County, TN, Roane County, TN, Union County, TN
The radar
The Knoxville radar (KMRX), 75 km from the middle of the area, began a volume at 20:39 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 24, 1:49 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 8.6 hours before the alert went out and 213 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 887 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -89 m²/s²
- 0-3 km storm-relative helicity
- -61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 24, 3:14 PM EDT, 1 hour 22 minutes earlier.
Area forecast discussion, Jun 24, 3:14 PM EDT, 1 hour 22 minutes before
Area Forecast Discussion National Weather Service Morristown TN 314 PM EDT Mon Jun 24 2019 .SHORT TERM (Tonight and Tuesday)...Through the afternoon and evening, a line of strong to severe storms will cross from east to west across the area. With the amount of sunshine that has occurred across much of the TN Valley, and with dewpoints in the upper 60s to lower 70s, there will be a good amount of instabilty in the pre-storm environment. Gusty winds so far indicate a more dynamic environment than the past few days as well, and downdrafts will transport strong winds aloft to the surface. The activity is expected to exit to the east around 00-01Z. The zone forecast will include a late afternoon period to account for this timing. Dry air in the mid levels builds in quickly but low level moisture may linger and allow for some cloudy skies overnight. Winds should provide enough mixing to prevent widespread fog. Surface high pressure will be building over the area tomorrow, with a dry westerly flow aloft that will provide mostly sunny skies and highs in the mid to upper 80s. .LONG TERM (Tuesday night through Monday)...Finally, slightly drier air will build into the Southern Appalachian region in the wake of a departing upper trough. The sub-tropical high will slowly build across the region through much of the remainder of the work week which should help to limit diurnal convection to the higher terrain features. A weakness will gradually develop in the ridge pattern over the Lower Mississippi Valley. A light southerly component to the low level flow may help to moisten the local Southern Appalachian atmosphere Friday into Saturday allowing for a little higher chance probability for showers and thunderstorms. However, the best chance of more widespread convection may occur toward the end of the extended period Sunday into Sunday night as a back door frontal boundary slips into the region as an unusually strong upper trough drops southeast across the Northeastern U.S. Temperatures will be seasonably warm through the forecast period. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 69 89 68 87 / 20 10 10 20 Knoxville McGhee Tyson Airport, TN 67 87 65 86 / 30 10 0 10 Oak Ridge, TN 68 87 65 88 / 20 10 0 10 Tri Cities Airport, TN 64 85 60 85 / 60 10 0 0 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. &&
Hazardous weather outlook, Jun 24, 2:59 PM EDT, 1 hour 37 minutes before
Hazardous Weather Outlook National Weather Service Morristown TN 259 PM EDT Mon Jun 24 2019 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-251900- Cherokee-Clay-Scott-Campbell-Claiborne-Hancock-Hawkins-Sullivan- Johnson-Morgan-Anderson-Union-Grainger-Hamblen-Northwest Cocke- Cocke Smoky Mountains-Northwest Greene-Southeast Greene- Washington-Unicoi-Northwest Carter-Southeast Carter-Roane-Loudon- Knox-Jefferson-Northwest Blount-Blount Smoky Mountains- North Sevier-Sevier Smoky Mountains-Sequatchie-Bledsoe-Rhea-Meigs- McMinn-Northwest Monroe-Southeast Monroe-Marion-Hamilton-Bradley- West Polk-East Polk-Lee-Wise-Russell- 259 PM EDT Mon Jun 24 2019 /159 PM CDT Mon Jun 24 2019/ This Hazardous Weather Outlook is for portions of southwest North Carolina...east Tennessee and southwest Virginia. .DAY ONE...This Afternoon and Tonight Another round of showers and thunderstorms can be expected mainly this afternoon into the evening. Some of these storms may be severe, with damaging winds the primary threat. Large hail will also be possible, and localized heavy rainfall may lead to ponding of water in poor drainage areas. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required this afternoon. Please report severe weather or severe weather damage to us at www.weather.gov/mrx/SpotterReports/.
In the hours before
Special weather statement, Jun 24, 3:56 PM EDT, 40 minutes before
Special Weather Statement
National Weather Service Morristown TN
256 PM CDT Mon Jun 24 2019
TNZ081-082-242045-
Sequatchie TN-Bledsoe TN-
256 PM CDT Mon Jun 24 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN SEQUATCHIE AND CENTRAL
BLEDSOE COUNTIES UNTIL 345 PM CDT...
At 256 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Dunlap, moving east at 45 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Dunlap, Pikeville, Brayton, Palio, Cagle and Old Cumberland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
east Tennessee.
LAT...LON 3571 8497 3557 8511 3550 8514 3547 8512
3545 8515 3545 8517 3540 8520 3533 8555
3536 8551 3541 8549 3543 8553 3549 8554
3551 8558
TIME...MOT...LOC 1956Z 252DEG 37KT 3544 8550
GaruckasSpecial weather statement, Jun 24, 3:58 PM EDT, 38 minutes before
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</html>Special weather statement, Jun 24, 4:14 PM EDT, 22 minutes before
Special Weather Statement
National Weather Service Morristown TN
414 PM EDT Mon Jun 24 2019
TNZ084-085-100-242100-
Bradley TN-Meigs TN-McMinn TN-
414 PM EDT Mon Jun 24 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BRADLEY...SOUTHWESTERN
MEIGS AND MCMINN COUNTIES UNTIL 500 PM EDT...
At 413 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lakesite, or 13 miles west of Cleveland, moving northeast at 40 mph.
Wind gusts up to 50 mph will be possible with this storm.
Locations impacted include...
Cleveland, Athens, Etowah, Charleston, Calhoun, Riceville, Hillsview,
Clear Water, Hopewell, Big Spring, Dentville and Tasso.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
east Tennessee.
LAT...LON 3514 8503 3516 8501 3519 8501 3522 8498
3526 8497 3528 8494 3531 8497 3536 8497
3537 8499 3557 8462 3533 8446 3527 8463
3527 8467 3524 8470 3512 8502
TIME...MOT...LOC 2013Z 240DEG 34KT 3520 8510
GaruckasLocal storm report, Jun 24, 4:17 PM EDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
417 PM EDT MON JUN 24 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0357 PM TSTM WND DMG 1 SSW RED BANK 35.09N 85.30W
06/24/2019 HAMILTON TN 911 CALL CENTER
REPORT OF POWER LINE DOWN IN RED BANK.
&&
JLBSpecial weather statement, Jun 24, 4:20 PM EDT, 16 minutes before
Special Weather Statement
National Weather Service Morristown TN
420 PM EDT Mon Jun 24 2019
TNZ082>085-099-242100-
Rhea TN-Bledsoe TN-Hamilton TN-Meigs TN-McMinn TN-
420 PM EDT Mon Jun 24 2019
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN RHEA...SOUTH CENTRAL
BLEDSOE...MEIGS...CENTRAL MCMINN AND NORTHEASTERN HAMILTON COUNTIES
UNTIL 500 PM EDT/400 PM CDT/...
At 420 PM EDT/320 PM CDT/, Doppler radar was tracking a strong
thunderstorm 10 miles south of Pikeville, moving east at 40 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Athens, Dayton, Decatur, Etowah, Graysville, Niota, Riceville,
Hillsview, Clear Water, Big Spring, Sale Creek, Evensville, Brayton,
Old Washington, Birchwood and Flat Top Mountain.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
A Severe Thunderstorm Watch remains in effect until 900 PM EDT/800 PM
CDT/ for east Tennessee.
LAT...LON 3534 8484 3536 8487 3536 8488 3534 8488
3535 8523 3536 8524 3540 8529 3553 8530
3561 8455 3533 8453
TIME...MOT...LOC 2020Z 266DEG 36KT 3545 8521
GaruckasSpecial weather statement, Jun 24, 4:25 PM EDT, 11 minutes before
Special Weather Statement
National Weather Service Morristown TN
425 PM EDT Mon Jun 24 2019
TNZ013-036-037-067-069-242115-
Anderson TN-Union TN-Roane TN-Campbell TN-Knox TN-
425 PM EDT Mon Jun 24 2019
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL KNOX...ANDERSON...
SOUTHEASTERN CAMPBELL...SOUTHERN UNION AND NORTHEASTERN ROANE
COUNTIES UNTIL 515 PM EDT...
At 424 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles south of Jacksboro to near Kingston.
Movement was east at 30 mph.
Pea size hail and winds in excess of 40 mph will be possible with
these storms.
Locations impacted include...
Knoxville, Oak Ridge, Clinton, Maynardville, Oliver Springs,
Plainview, Halls, Lake City, Norris, Norris Dam State Park,
Andersonville, Paulette, Rose Hill, Big Ridge State Park, Karns,
Disney, Powell and Norris Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
east Tennessee.
LAT...LON 3594 8395 3590 8451 3599 8444 3605 8434
3608 8437 3627 8422 3635 8373
TIME...MOT...LOC 2024Z 255DEG 27KT 3623 8419 3591 8444
DieganThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 3:41 PM EDT | Special Weather Statement | MRX | Hamilton | 49 min |
| Jun 24, 3:47 PM EDT | Special Weather Statement | MRX | Claiborne, Union | 43 min |
| Jun 24, 3:48 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton, Marion | 42 min |
| Jun 24, 3:56 PM EDT | Special Weather Statement | MRX | Bledsoe, Sequatchie | 49 min |
| Jun 24, 3:58 PM EDT | Special Weather Statement | MRX | Roane | 47 min |
| Jun 24, 4:14 PM EDT | Special Weather Statement | MRX | McMinn | 46 min |
| Jun 24, 4:20 PM EDT | Special Weather Statement | MRX | McMinn, Meigs | 40 min |
| Jun 24, 4:25 PM EDT | Special Weather Statement | MRX | Anderson, Knox, Union | 50 min |
| Jun 24, 4:41 PM EDT | Special Weather Statement | MRX | Bradley, Polk | 49 min |
| Jun 24, 4:43 PM EDT | Special Weather Statement | MRX | Monroe | 47 min |
| Jun 24, 4:50 PM EDT | Tornado Warning | MRX | Claiborne, Grainger, Union | 25 min |
| Jun 24, 5:08 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Knox, Loudon, McMinn, Meigs, Monroe and 1 more | 52 min |
| Jun 24, 5:12 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne, Grainger, Union | 31 min |
| Jun 24, 5:20 PM EDT | Severe Thunderstorm Warning | MRX | Grainger, Hamblen, Jefferson, Knox, Union | 40 min |
| Jun 24, 5:29 PM EDT | Severe Thunderstorm Warning | MRX | Bradley, McMinn, Meigs, Polk | 31 min |
| Jun 24, 5:30 PM EDT | Severe Thunderstorm Warning | MRX | Jefferson, Knox, Sevier | 31 min |
| Jun 24, 5:37 PM EDT | Severe Thunderstorm Warning | MRX | Hancock, Hawkins | 38 min |
| Jun 24, 5:57 PM EDT | Special Weather Statement | MRX | McMinn | 48 min |
| Jun 24, 6:32 PM EDT | Special Weather Statement | MRX | Greene | 43 min |
| Jun 24, 7:06 PM EDT | Special Weather Statement | MRX | Carter, Unicoi, Washington | 39 min |
| Jun 24, 6:40 PM EDT | Special Weather Statement | MRX | Graham | 50 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2019Every severe thunderstorm warning in 2019
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.