Alert archive / Tennessee / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 54, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at May 3, 2020, 7:31 PM EDT for Bradley County, McMinn County, Tennessee. It was in force for 23 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
- May 3, 2020, 7:31 PM EDT (23:31 UTC)
- Expired
- May 3, 2020, 7:54 PM EDT
- In force
- 23 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bradley County, TN, McMinn County, TN
The radar
The Northeast Alabama radar (KHTX), 129 km from the middle of the area, began a volume at 23:34 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 12:00Z, 11.5 hours before the alert went out and 192 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
- 1582 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 208 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 May 3, 7:26 PM EDT, 5 minutes earlier.
Area forecast discussion, May 3, 7:26 PM EDT, 5 minutes before
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</html>Hazardous weather outlook, May 3, 4:46 PM EDT, 2 hours 45 minutes before
Hazardous Weather Outlook National Weather Service Morristown TN 446 PM EDT Sun May 3 2020 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-042100- 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- 446 PM EDT Sun May 3 2020 /346 PM CDT Sun May 3 2020/ This Hazardous Weather Outlook is for portions of southwest North Carolina...east Tennessee and southwest Virginia. .DAY ONE...Tonight A line of thunderstorms continues to moves east across West and Middle Tennessee at this time. These thunderstorms will march across the Plateau and into the Tennessee Valley later this evening. Some of these storms could be severe with damaging winds and large hail being the primary threats. .DAYS TWO THROUGH SEVEN...Monday through Saturday A few strong to severe storms are possible Monday night mainly across the Southern Plateau, Southeast Tennesee, and extreme Southwest North Carolina. Isolated damaging winds and large hail would be the primary threats. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed late this afternoon and evening. Please relay any information about severe weather to the NWS while following local, state, and CDC guidelines.
In the hours before
Special weather statement, May 3, 6:34 PM EDT, 57 minutes before
Special Weather Statement
National Weather Service Morristown TN
534 PM CDT Sun May 3 2020
TNZ081-082-098-032315-
Sequatchie TN-Bledsoe TN-Marion TN-
534 PM CDT Sun May 3 2020
...SIGNIFICANT WEATHER ADVISORY FOR SEQUATCHIE...BLEDSOE AND MARION
COUNTIES UNTIL 615 PM CDT...
At 533 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles southeast of Woodbury to near Tullahoma
to Hazel Green. Movement was east at 45 mph.
Wind gusts of 50 to 55 mph will be possible with these storms.
Locations impacted include...
Dunlap, Jasper, Pikeville, Signal Mountain, South Pittsburg,
Whitwell, Kimball, Monteagle, Fairmount and Powells Crossroads.
A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
east Tennessee.
LAT...LON 3522 8574 3524 8569 3529 8571 3532 8557
3538 8549 3549 8554 3553 8560 3557 8542
3572 8526 3576 8526 3576 8492 3557 8511
3550 8514 3547 8512 3545 8517 3515 8538
3507 8536 3500 8543 3499 8586 3522 8586
TIME...MOT...LOC 2233Z 276DEG 41KT 3572 8595 3536 8614 3495 8659
GaruckasLocal storm report, May 3, 7:11 PM EDT, 20 minutes before
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</html>The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 6:34 PM EDT | Special Weather Statement | MRX | Bledsoe, Marion, Sequatchie | 41 min |
| May 3, 6:44 PM EDT | Severe Thunderstorm Warning | MRX | Bledsoe, Marion, Sequatchie | 46 min |
| May 3, 7:02 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton, Meigs, Rhea | 43 min |
| May 3, 7:11 PM EDT | Severe Thunderstorm Warning | MRX | Morgan, Roane, Scott | 49 min |
| May 3, 7:57 PM EDT | Special Weather Statement | MRX | Anderson, Campbell | 33 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2020Every severe thunderstorm warning in 2020
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.